CN108566103A - A key switch machine device and its implementation for secondary radar - Google Patents
A key switch machine device and its implementation for secondary radar Download PDFInfo
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- CN108566103A CN108566103A CN201810447407.7A CN201810447407A CN108566103A CN 108566103 A CN108566103 A CN 108566103A CN 201810447407 A CN201810447407 A CN 201810447407A CN 108566103 A CN108566103 A CN 108566103A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
Abstract
The invention discloses a kind of key switch machine devices and its implementation for secondary radar, including secondary radar, power supply module and battery main switch, power supply module is connected with single phase alternating current power supply by battery main switch, secondary radar includes sequentially connected data processing unit, signal processing unit, Receiver And Transmitter, transmitter includes the sequential control circuit being connected with each other, prime power amplifier unit and final stage power amplifier unit, power supply module includes first group of power supply and second group of power supply, first group of power supply respectively with data processing unit, signal processing unit, receiver is connected with sequential control circuit, second group of power supply is connect with prime power amplifier unit and final stage power amplifier unit respectively, first group of power supply is connected with relay drive circuit, relay drive circuit is connected with relay, relay is connect with second group of power supply；The present invention realizes that a battery main switch completes the function of multiple kind power supply sequence power ons and power-off by particular electrical circuit, achievees the purpose that a key switch machine.
Description
Technical field
The present invention relates to secondary radar power technique fields, and in particular to an a kind of key switch machine for secondary radar fills
It sets and its implementation.
Background technology
Secondary radar is the important information source of air control system as air traffic control system important component, is suitable for machine
Field and Routing monitoring, it is possible to provide the built-in distance for having airborne answering machine aircraft of power coverage area, orientation, pressure altitude, knowledge
Other code and other distinctive marks are (such as：Critical, communication failure is held as a hostage etc.) etc. information.
It is divided according to structure, secondary radar is divided into outdoor and indoor equipment.Outdoor equipment includes antenna, antenna pedestal two
Point.Indoor equipment includes the parts such as data processing, signal processing, receiver, transmitter, power supply, is typically mounted on a cabinet
In；Outer without power supply in addition to antenna is passive component in secondary radar equipment, other parts, which are both needed to power supply, to work.It is outdoor
Antenna pedestal using 380V three-phase alternating current and 220V single-phase alternating current power supply, indoor cabinet use 220V single phase acs
Electricity power supply, interior of equipment cabinet include multiple components such as power supply, transmitter, receiver, signal processing, data processing, wherein only electricity
Source component is the power supply of 220V single phase alternating current power supplies, and other assemblies are DC power supply power supplies, by power supply module by 220V blow-ups
Galvanic electricity source is converted to multiple kind DC power supplies needed for other assemblies, powers to various components.
Secondary radar usually first completes outdoor equipment power-up, then carries out indoor equipment power-up.The power-up procedures of outdoor equipment
It is relatively easy, it is invaded without personnel as long as confirming in the danger zone of rotatable parts (such as antenna), so that it may normal power-up.Interior is set
Standby power-up is relative complex, in power-up moment because of the uncertainty of signal, it may occur however that pumping signal ultra-wide or super duty ratio,
The case where signal is not set up, is protected in control, causes power amplifier in transmitter pipe to damage, therefore suitable to the power-up of power supply in radar operation handbook
Sequence is made that stringent regulation, it is desirable that when booting, by data processing/signal processing the sequence of --- driving source --- transmitter according to
Secondary completion power-up ensures that transmitter is started to work after encouraging and controlling guarantor's signal stabilization and establish.Similarly, powered-down sequence is also wanted
It asks, needs powering off successively in proper order for by transmitter --- driving source --- data processing/signal processing, ensure that transmitter just
Normally energized and control, which is protected under signal, to be stopped.It is designed to simplify, powering order can be divided into two steps：Data processing/signal processing swashs
It encourages source while first powering up, transmitter delay power-up；Powered-down sequence is also classified into two steps：Transmitter is first powered-down, data processing/signal
Processing, driving source delay are powered-down.Since driving source includes in receivers, so the powered up and down of driving source is exactly receiver
It is powered up and down.
According to the principle of secondary radar, after booting data processing work method control word is issued into signal processing, at signal
This generates corresponding clock signal to the driving source in receiver to reason, generates corresponding pumping signal by driving source and gives transmitting
Machine makes transmitter generate required request signal；The transmitter protection signal that synchronous signal processing generates (referred to as signal is protected in control)
Also transmitter is given, control is protected signal protection power amplifier in transmitter pipe and will not be damaged because pumping signal ultra-wide or duty ratio are excessively high.Hair
The precondition for penetrating machine power tube normal work is while pumping signal inputs, and control protects signal and is in effective (high level) shape
State, the two are indispensable.Pumping signal ensures that the waveform of transmitting signal is correct, and the trouble free service that signal ensures power tube is protected in control.
When secondary radar continuous operation, excitation and control are protected signal and are normally exported, and transmitter is in normal operating conditions, is only opened in radar
The moment of shutdown, due to encouraging and controlling the uncertainty of guarantor's signal, transmitter is there may be the output signal of mistake or by accident
Damage.
In the prior art, operating personnel must add some points and power off according to the sequence of the stringent multiple power supplys in the complete field of operating process,
Often occur because staff be unfamiliar with or operation error caused by equipment damage.
Invention content
It is a kind of for secondary radar the technical problem to be solved by the present invention is to provide in view of the above shortcomings of the prior art
A key switch machine device and its implementation, this for secondary radar a key switch machine device and its implementation avoid
The damage of power tube during manual operation caused by staff is unfamiliar with or operation error in secondary radar, realizes
One key switch machine.
To realize the above-mentioned technical purpose, the technical solution that the present invention takes is：
An a kind of key switch machine device for secondary radar, including secondary radar, power supply module and battery main switch, institute
It states power supply module and single phase alternating current power supply is connected with by battery main switch, the power supply module is connect with secondary radar, and described two
Secondary radar includes sequentially connected data processing unit, signal processing unit, Receiver And Transmitter, and the transmitter includes phase
Sequential control circuit, prime power amplifier unit and the final stage power amplifier unit to connect, the power supply module include first group of power supply and
Second group of power supply, first group of power supply respectively with data processing unit, signal processing unit, receiver and sequential control circuit
Connection, second group of power supply are connect with prime power amplifier unit and final stage power amplifier unit respectively, and first group of power supply is connected with
Relay drive circuit, the relay drive circuit are connected with relay, and the relay is connect with second group of power supply.
Include several as further improved technical scheme of the present invention, in first group of power supply and second group of power supply
A power supply unit, several described power supply units are used to single phase alternating current power supply being converted to different DC power supplies to be secondary
Radar is powered, and it includes bleeder circuit and three that the relay drive circuit and relay, which are several and relay drive circuit,
Pole pipe, a power supply unit in first group of power supply are connect with bleeder circuit described in several respectively, the bleeder circuit
It is connect with the triode, the triode is connect with the relay, and the power supply unit in second group of power supply passes through
Relay is connect with prime power amplifier unit and final stage power amplifier unit.
As further improved technical scheme of the present invention, the bleeder circuit include variable resistance RP, resistance R1 and
Resistance R2, the one end the variable resistance RP is connect with the output end of a power supply unit in first group of power supply, described
The other end of variable resistance RP is connect with one end of the resistance R1, the other end of the resistance R1 respectively with the base of triode
Pole is connected with one end of resistance R2, and the other end of the resistance R2 and the emitter of triode are respectively connected with ground wire, three pole
The collector of pipe is connect with one end of the coil of the relay, the other end of the coil of the relay and described first group electricity
The output end of a power supply unit in source connects, the common of the relay and the power supply list in second group of power supply
The normally-closed contact of member connection, the relay connects ground wire, normally opened contact and the prime power amplifier list of the relay by resistance
Member is connected with final stage power amplifier unit.
Further include several DC-DC conversion circuits as further improved technical scheme of the present invention, first group of electricity
Source by DC-DC conversion circuits respectively with the timing control in data processing unit, signal processing unit, Receiver And Transmitter
Circuit connects, and second group of power supply is connect by DC-DC conversion circuits with prime power amplifier unit and final stage power amplifier unit, described
The DC-DC conversion circuits that one end of variable resistance RP is connect with the output end of a power supply unit in first group of power supply
Connection, the normally opened contact of the relay are connect by DC-DC conversion circuits with prime power amplifier unit or final stage power amplifier unit.
As further improved technical scheme of the present invention, first group of power supply includes four power supply units, an electricity
Source unit is used to power for data processing unit, signal processing unit and sequential control circuit and the power supply unit passes through relay
Driving circuit is connect with the power supply unit in second group of power supply and the power supply unit uses Switching Power Supply, three power supply units to be used for
It powers for receiver and three power supply units is using linear power supply, the relay is 5V relays.
As further improved technical scheme of the present invention, second group of power supply includes three power supply units and this three
Power supply unit is all made of Switching Power Supply, and a power supply unit is used to control the final stage power amplifier pipe break-make in final stage power amplifier unit, and one
A power supply unit is used to power for prime power amplifier unit, and a power supply unit is used to power for final stage power amplifier unit.
To realize the above-mentioned technical purpose, another technical solution that the present invention takes is：
A kind of implementation method of a key switch machine device for secondary radar, includes the following steps：
(1) the multiple power supply units powered for secondary radar will be needed to be integrated in the same power supply module, according to data
The sequencing of the power-up of processing unit, signal processing unit, Receiver And Transmitter and the sequencing of power-off are to multiple
Power supply unit is grouped, and obtains first group of power supply and second group of power supply, first group of power supply is for being respectively data processing
Unit, signal processing unit, the sequential control circuit in Receiver And Transmitter are powered and postpone power-off in advance, described second group
Power supply be used for in transmitter prime power amplifier unit and the power supply of final stage power amplifier cell delay and power off in advance；
(2) first group of power supply and second group of power supply are connect by battery main switch with single phase alternating current power supply；
(3) it selects a power supply unit as control power supply from first group of power supply, which is passed through into relay
Driving circuit and relay are connect with second group of power supply；
(4) total power switch is opened, first group of power supply is data processing unit, signal processing unit, receiver and transmitting
Sequential control circuit in machine is powered, and for the control power supply in first group of power supply to relay drive circuit output voltage, output is electric
The conducting of triode in voltage-controlled relay drive circuit processed, and then the actuation of relay is driven, control second group of power supply and hair
The conducting of the prime power amplifier unit and final stage power amplifier unit in machine is penetrated, the voltage of control power supply output when repeat circuit is attracted
Control electricity when value is powered more than the sequential control circuit in data processing unit, signal processing unit, Receiver And Transmitter
The voltage value of source output, to realize the control for postponing power-up of second group of power supply；
(5) total power switch is closed, the triode cut-off in relay drive circuit, relay release, prime power amplifier list
Member and final stage power amplifier unit are stopped, and the voltage value of control power supply output when repeat circuit discharges is more than data processing list
The voltage value of control power supply output when member, signal processing unit, sequential control circuit power-off in Receiver And Transmitter, from
And realize the control of second group of power supply powered off in advance.
As further improved technical scheme of the present invention, the relay is 5V relays, and the control power supply is used for
The voltage that single phase alternating current power supply exports is converted into 5V DC voltages, the control power supply is and the sequential control in the transmitter
The power supply unit of circuit connection processed.
Beneficial effects of the present invention are：Operating personnel pass through the operation to a battery main switch, so that it may complete multiple electricity
The power-up successively in source and sequence power off, and complete the sequence power on of multiple power supplys according to stringent operating process without staff
And power-off.It realizes that a battery main switch completes the function of multiple kind power supply sequence power ons and power-off by particular electrical circuit, reaches
To the purpose of a key switch machine.With automatically controlling instead of manual operation for circuit, avoid because staff is unskilled or behaviour
Equipment damage caused by slipping up improves the reliability of equipment, simplifying operation of equipment.
Description of the drawings
Fig. 1 is the key switch machine principle schematic in embodiment.
Fig. 2 is the key switch machine time diagram in embodiment.
Fig. 3 is the relay drive circuit schematic diagram in embodiment.
Specific implementation mode
The present invention realizes that a battery main switch completes multiple kind power supply sequence power ons and power-off by particular electrical circuit
Function further illustrates the specific implementation mode of the present invention below according to Fig. 1 to Fig. 3：
An a kind of key switch machine device for secondary radar, including secondary radar, power supply module and battery main switch, institute
It states power supply module and single phase alternating current power supply is connected with by battery main switch, the power supply module is connect with secondary radar, and described two
The indoor equipment of secondary radar includes sequentially connected data processing unit, signal processing unit, Receiver And Transmitter, the hair
The machine of penetrating includes sequential control circuit, prime power amplifier unit and the final stage power amplifier unit being connected with each other, and the power supply module includes the
One group of power supply and second group of power supply, first group of power supply respectively with data processing unit, signal processing unit, receiver and when
Sequence control circuit connects, and second group of power supply is connect with prime power amplifier unit and final stage power amplifier unit respectively, described first group
Power supply is connected with relay drive circuit, and the relay drive circuit is connected with relay, the relay and described second
Group power supply connection.
Include several power supply units in first group of power supply and second group of power supply, several described power supply units are used
In by single phase alternating current power supply be converted to different DC power supplies to for secondary radar power, the relay drive circuit and after
It includes bleeder circuit and triode, a power supply in first group of power supply that electric appliance, which is several and relay drive circuit,
Unit is connect with bleeder circuit described in several respectively, and the bleeder circuit is connect with the triode, the triode and institute
Relay connection is stated, the power supply unit in second group of power supply passes through relay and prime power amplifier unit and final stage power amplifier list
Member connection.
Referring to Fig. 1 and Fig. 3, the bleeder circuit includes variable resistance RP, resistance R1 and resistance R2, the variable resistance
The one end device RP is connect with the output end (+5V power supplys) of a power supply unit in first group of power supply, the variable resistance
The other end of RP is connect with one end of the resistance R1, the other end of the resistance R1 respectively with the base stage of triode and resistance R2
One end connection, the other end of the resistance R2 and the emitter of triode are respectively connected with ground wire, the collector of the triode
It is connect with one end of the coil of the relay, the other end of the coil of the relay and one in first group of power supply
The output end (+5V power supplys) of power supply unit connects, the common of the relay and the power supply list in second group of power supply
The normally-closed contact of member connection, the relay connects ground wire, institute by resistance (resistance R3, resistance R4, resistance R5 in such as Fig. 1)
State the normally opened contact and prime power amplifier unit and final stage work(of relay (relay K1, relay K2, relay K3 in such as Fig. 1)
Put unit connection.
Referring to Fig. 1 and Fig. 3, the present embodiment further includes several DC-DC conversion circuits, and first group of power supply passes through DC-
DC conversion circuits are connect with the sequential control circuit in data processing unit, signal processing unit, Receiver And Transmitter respectively,
Second group of power supply is connect by DC-DC conversion circuits with prime power amplifier unit and final stage power amplifier unit, the variable resistance
The DC-DC conversion circuits connection that one end of device RP is connect with the output end of a power supply unit in first group of power supply, institute
The normally opened contact for stating relay is connect by DC-DC conversion circuits with prime power amplifier unit or final stage power amplifier unit.
First group of power supply includes four power supply units, and a power supply unit is used for as at data processing unit, signal
Reason unit and sequential control circuit are powered and the power supply unit passes through the power supply list in relay drive circuit and second group of power supply
Member connection and the power supply unit use Switching Power Supply, and it is receiver power supply that three power supply units, which are used for, and three power supply units are adopted
With linear power supply, the relay is 5V relays.Second group of power supply includes three power supply units and three power supply lists
Member is all made of Switching Power Supply, and a power supply unit is used to control the final stage power amplifier pipe break-make in final stage power amplifier unit, a power supply
Unit is used to power for prime power amplifier unit, and a power supply unit is used to power for final stage power amplifier unit.
Therefore data processing unit, signal processing unit, receiver, transmitter at least need 7 kind DC power supplies, have
Body power supply requirement is shown in Table 1.
1 secondary radar D.C. power requirement table of table
As can be seen from the table, this 7 kind power supplys have 5 voltage values, be respectively+5V ,+12V, -12V ,+24V ,+
50V, wherein the power supply of+5V has 2, the power supply of -12V has 2, this is mainly receiver has low ripple requirement to power supply, only
It just can guarantee the low noise index request of receiver using low ripple power supply, as seen from Table 13 used in receiver kind power supply
All it is low ripple power supply, ripple requires to be less than 10mV, and the ripple of other power supplys requires to be less than 50mV, therefore the product of DC power supply
Kind increases to 7 by 5, it is therefore desirable to 7 power supply units, wherein+5V power supplys have two kinds of 10mV ripples and 50mV ripples, -12V
Power supply also has two kinds of 10mV ripples and 50mV ripples.
The function of power supply module is by the external 220V single phase alternating current power supplies conversion process provided into required various direct currents
Power supply.According to the demand of power supply, power supply can be divided into two classes：Linear power supply and Switching Power Supply.The advantages of linear power supply：Circuit letter
It is single, at low cost, reliability is high, noise is low, transient response is fast, disadvantage：Efficiency is low, volume and weight is big, input voltage range is narrow；
Switching Power Supply is with linear power supply on the contrary, its advantage：Efficient, small, light-weight, wide input voltage range, power density are high,
Disadvantage：Circuit is relative complex, noise is big.For electronics miniaturization, efficient needs, there is no the case where particular/special requirement
Lower power supply is generally used Switching Power Supply.The Power Management Design of secondary radar is also based on Switching Power Supply, but due to receiver pair
Power supply has the requirement of low ripple, thus kind+the 5V (ripple 10mV) of 3 used in receiver power supply unit ,+12V (ripples
10mV), -12V (ripple 10mV) uses linear power supply.In addition, the transmitter of secondary radar is all solid-state transmitter, final stage power amplifier
Unit forms final transmitting signal after being synthesized by 4 final stage power amplifier tube powers, by turning off 1 or several final stage power amplifier pipes,
Realize the function of output power of transmitter stepping controllable (can decay).Therefore transmitter has used 4 power supply unit kinds altogether,
First power supply unit of wherein output+5V (ripple 50mV) is powered for the sequential control circuit in transmitter, is not power amplifier
Pipe biases and power supply, the power-up of+5V (ripple 50mV) will not lead to the work of power amplifier in transmitter pipe；Second power supply list
- the 12V (ripple 50mV) of member output is the control power supply whether the final stage power amplifier pipe in final stage power amplifier unit turns off, third electricity
+ the 24V (ripple 50mV) of source unit output is the power supply of prime the power amplifier unit ,+50V of fourth power unit output
(ripple 50mV) is the power supply of the final stage power amplifier pipe in final stage power amplifier unit, while generating one by+24V (ripple 50mV)
Grid bias-voltage after+5V power supplys partial pressure as power tube, as long as in conclusion three power supplys that second group of power supply of control includes
- the 12V (ripple 50mV) of unit output, the power-up time of+24V (ripple 50mV) ,+50V (ripple 50mV) this 3 kinds of power supplys, just
The purpose of protection power amplifier in transmitter pipe can be played.
Therefore it is protection transmitter, needs corresponding 7 power supply units of 7 kind power supplys of secondary radar being divided into two
Group, first group of power supply includes the power supply unit for needing first to power up, and is data processing unit, signal processing unit, receiver (excitation
Source) and transmitter sequential control circuit used in power supply unit, the voltage of output includes+5V (ripple 50mV) ,+5V (ripples
10mV) ,+12V (ripple 10mV), -12V (ripple 10mV), totally 4 power supply units, second group of power supply are to need to postpone power-up
Power supply unit, is power tube work in transmitter power supply used, including -12V (ripple 50mV) ,+24V (ripple 50mV) ,+
50V (ripple 50mV) totally 3 power supply units.For ease of the realization of a key switch machine function, 7 power supply units are integrated in one
In power supply module.According to the needs of protection transmitter, when secondary radar is switched on, first first group of power supply is given to power up, completed at data
The power-up of unit, signal processing unit and receiver is managed, although transmitter also uses+5V (ripple 50mV) power supply, is only emitted
Sequential control circuit in machine powers up, and the power tube in prime power amplifier unit and final stage power amplifier unit does not power up, so power amplifier
Pipe will not work, and transmitter will not be caused to damage.With the power supply unit that the output in first group of power supply is+5V (ripple 50mV)
The switch electric control power supply of (below referred to as+5V power supply units) as second group of power supply because+5V power supply units be not only it is most heavy
The power supply kind wanted, its power-up flag data processing unit and signal processing unit has worked normally, in receiver
Control circuit also work normally, and the rated current of+5V power supply units be in 4 power supply units in first group of power supply most
It is big, be 25A, therefore it is powered up and down when voltage amplitude variation than shallower, be suitable as control signal, control second group of electricity
Source it is powered up and down.
One key switch machine of secondary radar realizes the sequence switch electricity of multiple power supply units by a battery main switch.It is secondary
Radar externally provides a battery main switch, controls the break-make of 220V single phase alternating current power supplies, and booting is exactly power turn-on master switch,
220V single-phase alternating currents are accessed, shutdown is exactly to pull down battery main switch, cuts off 220V single-phase alternating currents.After booting, 7 power supply lists
Member has direct current to be input to secondary radar, and direct current is directly inputted and converts electricity through DC-DC by 4 power supply units in first group of power supply
The DC power supply output for meeting index request is generated behind road, for data processing unit, signal processing unit, receiver and sequential control
Circuit processed uses, so 4 power supply units of first group of power supply are powered simultaneously.3 power supply units in second group of power supply
Direct-flow input end increases a relay, and 3 relays are all by the+5V power supply units of first group of power supply (one of electricity
+ 5V the power supplys of source unit output) control, physical circuit is referring to Fig. 1.The V on the left sides Fig. 1IN(+5V)It is the power supply in first group of power supply
+ 5V (ripple 50mV) voltage of unit output, VOUT(+5V)For the voltage by the output of DC-DC conversion circuits；V on the right of Fig. 1IN(-
12V)、VIN(+24V)、VIN(+50V)(- 12V ,+24V ,+50V power supplys) is that second group of power supply exports.After booting, when first group of electricity
When+5V the power supplys of source output are less than 4.9V, single-pole double-throw relay K1, K2, K3 are in release conditions (disconnection of the ends 1-2, the ends 1-3
Connect), second group of power supply is coupled with load R1, R2, R3, without DC-DC conversion circuits, so second group of power supply does not have direct current
It is output to prime power amplifier unit and final stage power amplifier unit；Only when the+5V power supplys of first group of power supply output reach 4.9V or more
When, single-pole double-throw relay K1, K2, K3 (1-2 terminates logical, the ends 1-3 disconnection), at this time the direct current access of second group of power supply will be attracted
DC-DC conversion circuits generate required DC power supply output, in transmitter prime power amplifier unit and final stage power amplifier unit make
With transmitter is started to work.When closing battery main switch, when+5V power supplys are down to+4.9V, release single-pole double-throw relay K1,
K2, K3 (ends 1-2 disconnect, and 1-3 terminations are logical), second group of power supply is disconnected with DC-DC conversion circuits, respectively with absorbing load R3, R4,
R5 is connected, and 3 power supply units of second group of power supply do not have direct current output, the power amplifier in prime power amplifier unit and final stage power amplifier unit
Pipe is stopped, and ensures to turn off transmitter before sequential and pumping signal disappear, when+5V power supplys are down to+4.75V or less, number
It is just stopped according to processing unit, signal processing unit, receiver.
The control of one key switch machine method repeat circuit is critically important, which wants in addition to the rated load of contact to be met
It asks outer, sensitive is wanted to offset signal.During powered up and down ,+5V the power supply units as control power supply have a in power-up
Voltage gradually rises to the process of full amplitude, there is the process for gradually decreasing to zero level when power is off.A specific key switch
Machine sequence diagram is referring to Fig. 2.Be to improve to the protective capability of transmitter, it is desirable to when+5V power supplys rise to 4.9V from 0V when being switched on after
Electric appliance is attracted, and starts the direct current output of second group of power supply；Relay discharges when+5V power supplys are down to 4.9V when shutdown, shutdown second
The direct current output of group power supply.And the voltage amplitude of+5V power supplys is in ± 10% ranges of 5V (+4.75V~+5.25V), data processing
Unit, signal processing unit, receiver can keep normal operating conditions, it can thus be appreciated that when booting+5V power supplys rise to from 0V+
Data processing unit, signal processing unit, receiver have been enter into normal operating conditions when 4.75V, are sent out after continuing to rise to+4.9V
It penetrates second used in machine power tube group of power supply just to start to power, power amplifier in transmitter pipe enters working condition；On the contrary ,+5V when shutdown
Power supply is first turned off the power supply of power amplifier in transmitter pipe when being down to+4.9V, power amplifier in transmitter pipe is stopped, and continues to drop to+4.75V
Afterwards, data processing unit, signal processing unit, receiver are just stopped.As long as the filter capacitor of reasonable selection+5V power supplys,
The power supply rises to rise time (Tr) interior data processing unit, the signal processing list of+4.9V from+4.75V when ensuring that booting
Member, receiver enter stable state, and shutdown is relatively easy, as long as ensureing power amplifier in transmitter pipe (prime power amplifier unit and final stage power amplifier
Unit) power supply first powers off, and it powers off after data processing unit, signal processing unit, receiver, does not have to fall time (Tf)
It is strict with.To improve sensibility of the relay to supply voltage, the actuation coil of triode driving relay, specific electricity are selected
Road is as shown in Figure 3：Using 5V relays, the coil both ends of the relay collector (c with+5V power supply units and triode respectively
End) connection ,+5V power supplys are connected by the base stage of divider resistance RP, R1, R2 and triode, when the bias voltage of transistor base
Triode ON when more than 0.7V, relay are attracted (1-2 terminations are logical, the ends 1-3 disconnect)；Otherwise the bias voltage of base stage is less than
Triode ends when 0.7V, relay release (ends 1-2 disconnect, 1-3 terminations are logical).For the voltage of satisfaction+5V power supply units output
Relay is attracted when higher than+4.9V, and relay discharges when being less than+4.9V, it is desirable to the base bias of triode when being higher than+4.9V
Voltage is more than 0.7V, and the ratio that thus can calculate (RP+R1) and R2 is 6:1, i.e., when R2 takes 2k Ω, and (RP+R1) takes 12k Ω,
As long as the voltage of+5V power supply units output is higher than+4.9V, transistor base bias voltage is greater than 0.7V, triode ON.It presses
This intrinsic standoff ratio, when the voltage of+5V power supply units output is down to+4.75V or lower, the base bias voltage of triode is
0.68V or lower is less than 0.7V, triode shutdown.In view of the individual difference of triode, in the bleeder circuit of base bias
Used variable resistance RP, minimum resistance value is 0 Ω, and maximum value is 2k Ω, and R1 takes 11k Ω, thus (RP+R1) resistance value
Adjustable between 11k Ω~13k Ω, R2 takes 2k Ω.In specific debugging process, the initial resistance value setting of variable resistance RP exists
The positions 1k Ω replace+5V power supply units to power to circuit using source of stable pressure, micro- when source of stable pressure output voltage is adjusted to+4.9V
The resistance value for adjusting (reduction) variable resistance RP makes triode ON, relay be attracted；When source of stable pressure output voltage is adjusted to+4.75V
When, the resistance value of fine tuning (increases) variable resistance RP makes triode cut-off, relay discharge, and one to can select twice repeatedly
The resistance value of suitable variable resistance RP is simultaneously fixed.
Therefore the present embodiment proposes a kind of reality of a key switch machine device for secondary radar according to above-mentioned operation principle
Existing method, includes the following steps：
(1) the multiple power supply units powered for secondary radar will be needed to be integrated in the same power supply module, according to data
The sequencing of the power-up of processing unit, signal processing unit, Receiver And Transmitter and the sequencing of power-off are to multiple
Power supply unit is grouped, and obtains first group of power supply and second group of power supply, first group of power supply is for being respectively data processing
Unit, signal processing unit, the sequential control circuit in Receiver And Transmitter are powered and postpone power-off in advance, described second group
Power supply be used for in transmitter prime power amplifier unit and the power supply of final stage power amplifier cell delay and power off in advance；
(2) first group of power supply and second group of power supply are connect by battery main switch with single phase alternating current power supply；
(3) it selects a power supply unit as control power supply from first group of power supply, which is passed through into relay
Driving circuit and relay are connect with second group of power supply；
(4) total power switch is opened, first group of power supply is data processing unit, signal processing unit, receiver and transmitting
Sequential control circuit in machine is powered, and for the control power supply in first group of power supply to relay drive circuit output voltage, output is electric
The conducting of triode in voltage-controlled relay drive circuit processed, and then the actuation of relay is driven, control second group of power supply and hair
The conducting of the prime power amplifier unit and final stage power amplifier unit in machine is penetrated, the voltage of control power supply output when repeat circuit is attracted
Control electricity when value is powered more than the sequential control circuit in data processing unit, signal processing unit, Receiver And Transmitter
The voltage value of source output, to realize the control for postponing power-up of second group of power supply；
(5) total power switch is closed, the triode cut-off in relay drive circuit, relay release, prime power amplifier list
Member and final stage power amplifier unit are stopped, and the voltage value of control power supply output when repeat circuit discharges is more than data processing list
The voltage value of control power supply output when member, signal processing unit, sequential control circuit power-off in Receiver And Transmitter, from
And realize the control of second group of power supply powered off in advance.The relay is 5V relays, and the control power supply is used for will be single-phase
The voltage of AC power output is converted to 5V DC voltages, and the control power supply is and the sequential control circuit in the transmitter
The power supply unit of connection.
Method proposed by the present invention can simplify secondary radar equipment operation, improve equipment availability and reliability, and this
Method is not limited to secondary radar equipment, and the method can be used to the impulse wave power tube circuit that pulsewidth and duty ratio require
It is protected, is also applied for the case where multi items power supply in an equipment needs sequence power on and power-off.
Protection scope of the present invention includes but not limited to embodiment of above, and protection scope of the present invention is with claims
Subject to, any replacement being readily apparent that those skilled in the art that this technology is made, deformation, improvement each fall within the present invention's
Protection domain.
Claims (8)
1. an a kind of key switch machine device for secondary radar, including secondary radar, power supply module and battery main switch, described
Power supply module is connected with single phase alternating current power supply by battery main switch, and the power supply module is connect with secondary radar, described secondary
Radar includes sequentially connected data processing unit, signal processing unit, Receiver And Transmitter, and the transmitter includes mutual
Sequential control circuit, prime power amplifier unit and the final stage power amplifier unit of connection, it is characterised in that：The power supply module includes first
Group power supply and second group of power supply, first group of power supply respectively with data processing unit, signal processing unit, receiver and sequential
Control circuit connects, and second group of power supply is connect with prime power amplifier unit and final stage power amplifier unit respectively, first group of electricity
Source is connected with relay drive circuit, and the relay drive circuit is connected with relay, the relay with described second group
Power supply connects.
2. the key switch machine device according to claim 1 for secondary radar, it is characterised in that：First group of electricity
Include several power supply units in source and second group of power supply, several described power supply units are for converting single phase alternating current power supply
Be different DC power supplies to be secondary radar power supply, the relay drive circuit and relay are several and relay
Device driving circuit includes bleeder circuit and triode, a power supply unit in first group of power supply respectively with described in several
Bleeder circuit connects, and the bleeder circuit is connect with the triode, and the triode is connect with the relay, and described second
Power supply unit in group power supply is connect by relay with prime power amplifier unit and final stage power amplifier unit.
3. the key switch machine device according to claim 2 for secondary radar, it is characterised in that：The bleeder circuit
Including variable resistance RP, resistance R1 and resistance R2, the one end the variable resistance RP and one in first group of power supply
The output end of power supply unit connects, and the other end of the variable resistance RP is connect with one end of the resistance R1, the resistance
The other end of R1 is connect with one end of the base stage of triode and resistance R2 respectively, the hair of the other end and triode of the resistance R2
Emitter-base bandgap grading is respectively connected with ground wire, and the collector of the triode is connect with one end of the coil of the relay, the relay
The other end of coil is connect with the output end of a power supply unit in first group of power supply, the common of the relay
Connect with the power supply unit in second group of power supply, the normally-closed contact of the relay connects ground wire by resistance, it is described after
The normally opened contact of electric appliance is connect with prime power amplifier unit and final stage power amplifier unit.
4. the key switch machine device according to claim 3 for secondary radar, it is characterised in that：Further include several
DC-DC conversion circuits, first group of power supply by DC-DC conversion circuits respectively with data processing unit, signal processing unit,
Sequential control circuit connection in Receiver And Transmitter, second group of power supply pass through DC-DC conversion circuits and prime power amplifier
Unit is connected with final stage power amplifier unit, one end of the variable resistance RP and a power supply unit in first group of power supply
Output end connection the connection of DC-DC conversion circuits, the normally opened contact of the relay passes through DC-DC conversion circuits and prime work(
Put unit or the connection of final stage power amplifier unit.
5. the key switch machine device according to claim 4 for secondary radar, it is characterised in that：First group of electricity
Source includes four power supply units, and a power supply unit is used to be data processing unit, signal processing unit and sequential control circuit
It powers and the power supply unit is connect with the power supply unit in second group of power supply by relay drive circuit and the power supply unit is adopted
With Switching Power Supply, three power supply units are used for as receiver power supply and three power supply units are using linear power supply, the relay
Device is 5V relays.
6. the key switch machine device according to claim 5 for secondary radar, it is characterised in that：Second group of electricity
Source includes three power supply units and three power supply units are all made of Switching Power Supply, and a power supply unit is for controlling final stage power amplifier
Final stage power amplifier pipe break-make in unit, a power supply unit are used to power for prime power amplifier unit, and a power supply unit is for being
Final stage power amplifier unit is powered.
7. a kind of implementation method of a key switch machine device according to claim 3 for secondary radar, feature exist
In：Include the following steps：
(1) the multiple power supply units powered for secondary radar will be needed to be integrated in the same power supply module, according to data processing
The sequencing of the power-up of unit, signal processing unit, Receiver And Transmitter and the sequencing of power-off are to multiple power supplys
Unit is grouped, and obtains first group of power supply and second group of power supply, first group of power supply for be respectively data processing unit,
Sequential control circuit in signal processing unit, Receiver And Transmitter powers and postpones to power off, second group of power supply in advance
For in transmitter prime power amplifier unit and final stage power amplifier cell delay power supply and power off in advance；
(2) first group of power supply and second group of power supply are connect by battery main switch with single phase alternating current power supply；
(3) it selects a power supply unit as control power supply from first group of power supply, which is passed through into relay driving
Circuit and relay are connect with second group of power supply；
(4) total power switch is opened, first group of power supply is data processing unit, in signal processing unit, Receiver And Transmitter
Sequential control circuit power supply, control power supply in first group of power supply is to relay drive circuit output voltage, output voltage control
The conducting of triode in relay drive circuit processed, and then the actuation of relay is driven, control second group of power supply and transmitter
The voltage value of the conducting of interior prime power amplifier unit and final stage power amplifier unit, control power supply output when repeat circuit is attracted is big
Control power supply when the sequential control circuit in data processing unit, signal processing unit, Receiver And Transmitter is powered is defeated
The voltage value gone out, to realize the control for postponing power-up of second group of power supply；
(5) close total power switch, the triode cut-off in relay drive circuit, relay release, prime power amplifier unit and
Final stage power amplifier unit is stopped, repeat circuit discharge when control power supply output voltage value be more than data processing unit,
The voltage value of control power supply output when sequential control circuit in signal processing unit, Receiver And Transmitter powers off, to
Realize the control of second group of power supply powered off in advance.
8. the implementation method of the key switch machine device according to claim 7 for secondary radar, it is characterised in that：Institute
It is 5V relays to state relay, and the control power supply is used to the voltage that single phase alternating current power supply exports being converted to 5V DC voltages,
The control power supply is the power supply unit being connect with the sequential control circuit in the transmitter.
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| CN201810447407.7A CN108566103B (en) | 2018-05-11 | 2018-05-11 | One-key switch device for secondary radar and implementation method thereof |
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| CN201810447407.7A CN108566103B (en) | 2018-05-11 | 2018-05-11 | One-key switch device for secondary radar and implementation method thereof |
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| CN111835377A (en) * | 2020-08-19 | 2020-10-27 | 展讯通信（上海）有限公司 | Signal transceiving device and power-on and power-off method of transmitting module thereof |
| CN112859675A (en) * | 2021-01-04 | 2021-05-28 | 北京无线电测量研究所 | Power-up sequence control device and method, phased array antenna and radar |
| CN112986969A (en) * | 2021-02-10 | 2021-06-18 | 南京恩瑞特实业有限公司 | One-key startup and shutdown system of phased array weather radar |
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| CN113014075A (en) * | 2021-04-07 | 2021-06-22 | 智道网联科技(北京)有限公司 | Power supply circuit of power amplifier device of intelligent network equipment and control method |
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| CN108566103B (en) | 2020-06-02 |
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