CN108539970A - Smart electronics power switch and the 3D printer for configuring the switch - Google Patents
Smart electronics power switch and the 3D printer for configuring the switch Download PDFInfo
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- CN108539970A CN108539970A CN201810501075.6A CN201810501075A CN108539970A CN 108539970 A CN108539970 A CN 108539970A CN 201810501075 A CN201810501075 A CN 201810501075A CN 108539970 A CN108539970 A CN 108539970A
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- 239000004065 semiconductor Substances 0.000 claims abstract description 95
- 230000008878 coupling Effects 0.000 claims abstract description 51
- 238000010168 coupling process Methods 0.000 claims abstract description 51
- 238000005859 coupling reaction Methods 0.000 claims abstract description 51
- 230000005611 electricity Effects 0.000 claims abstract description 21
- 238000012544 monitoring process Methods 0.000 claims abstract description 13
- 230000003993 interaction Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- 230000002452 interceptive effect Effects 0.000 claims 1
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010146 3D printing Methods 0.000 description 2
- 238000010892 electric spark Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 241000238876 Acari Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/36—Means for starting or stopping converters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- 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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
Abstract
The present invention provides a kind of smart electronics power switches, including start closing unit, couple external power supply, for being based on push-button switch output switching signal, so that the first metal-oxide-semiconductor is connected, and turn off the first metal-oxide-semiconductor when receiving the first enable signal；First metal-oxide-semiconductor, source electrode couple external power supply, and grid coupling starts closing unit, and drain electrode couples object driving unit as output end；Delay locked unit, coupling starts closing unit and the first metal-oxide-semiconductor, the drain electrode based on the first metal-oxide-semiconductor take electricity, for keeping its conducting state when the first metal-oxide-semiconductor is connected；MCU, coupling start closing unit and delay locked unit, the state for monitoring the push-button switch, and the first enable signal of output to starting closing unit, or the second enable signal of output is to object driving unit；And object driving unit, metal-oxide-semiconductor switch M1 and MCU are coupled, the second enable signal for drain electrode output and/or MCU based on the first metal-oxide-semiconductor drives controll plant.
Description
Technical field
The present invention relates to electronic switch fields, and in particular to a kind of smart electronics power switch and the 3D printing for configuring the switch
Machine.
Background technology
General printer power supply is powered by the 24V adapters of an outside, by concatenating a power switch, power supply
Supply printer controller.With printing acc power promotion, it is also increasing by the electric current of this power switch, open or
The moment of person's shutdown can beat electric spark, and generate larger EMC interference, be increasingly difficult to the type selecting of power switch.
In addition, the platform of printer, by the way of synchronous belt, synchronous belt does not have the characteristic of self-locking.If at print platform
In certain height, at this moment user by power switch rashly being powered off, and printer Z axis platform can be fallen down moment, not only body
It tests bad, and also has damage to machine itself.
Invention content
Present invention solves the technical problem that being to provide a kind of smart electronics power switch and configuring the 3D printing of the switch
Machine, to solve the problems, such as above-mentioned at least one aspect.
The first aspect of the invention provides a kind of smart electronics power switch, including：
Start closing unit, couples external power supply, for based on push-button switch output switching signal, the first metal-oxide-semiconductor being made to be connected,
And turn off the first metal-oxide-semiconductor when receiving the first enable signal；
First metal-oxide-semiconductor, source electrode couple external power supply, and grid coupling starts closing unit, and drain electrode is driven as output end coupling object
Moving cell；
Delay locked unit, coupling start closing unit and the first metal-oxide-semiconductor, the drain electrode based on the first metal-oxide-semiconductor and take electricity, for the
One metal-oxide-semiconductor keeps its conducting state when being connected；
MCU, coupling start closing unit and delay locked unit, the state for monitoring the push-button switch, and output
First enable signal is to starting closing unit, or the second enable signal of output is to object driving unit；
And object driving unit, the first metal-oxide-semiconductor and MCU are coupled, drain electrode output and/or MCU based on the first metal-oxide-semiconductor are used for
The second enable signal drive controll plant.
Optionally, first metal-oxide-semiconductor is PMOSFET.
Further, the startup closing unit includes start-up circuit and closing circuit；The start-up circuit includes button
One end of formula switch S1, resistance R1-R3 and capacitance C1, wherein resistance R1 and R2 couple external power supply, the other end coupling of resistance R1
One end of push-button switch S1 and capacitance C1 are connect, and as switch potential monitoring node；The other end coupling resistance R3 of capacitance C1
One end, the other end of the other end coupling resistance R2 of resistance R3, and as the first output end coupling for starting closing unit
The grid of one metal-oxide-semiconductor, the other end ground connection of push-button switch S1.
Further, the closing circuit includes triode Q1, Schottky diode D1 and resistance R8, R9, wherein Xiao Te
The cathode of based diode D1 couples the switch potential monitoring node, and anode couples the collector of triode Q1, and as startup
The second output terminal of closing unit couples delay locked unit and the monitoring signals input pin of MCU, the base stage coupling of triode Q1
One end of connecting resistance R9, and pass through the first enable signal output pin of resistance R8 couplings MCU, the emitter and electricity of triode Q1
Hinder the other end ground connection of R9.
Further, the delay locked unit includes the second metal-oxide-semiconductor M2, resistance R5-R7, capacitance C2 and builtin voltage
Source, one end of wherein resistance R5 couple the grid of the first metal-oxide-semiconductor, and the other end couples the drain electrode of the second metal-oxide-semiconductor M2, the second metal-oxide-semiconductor
One end of the grid coupling resistance R6 and capacitance C2 of M2, one end of the other end coupling resistance R7 of resistance R6 and startup closing unit
Second output terminal, the other end of the other end of capacitance C2 and resistance R7 couples internal source voltage, the internal source voltage coupling
The drain electrode of first metal-oxide-semiconductor takes electricity.
Further, the smart electronics power switch further includes DC-DC converting units, the DC-DC converting units
The drain output that input terminal couples the first metal-oxide-semiconductor takes electricity, the first output end to couple the power input of delay locked unit.
Further, the internal source voltage is DC-DC converting units, and the input terminal of the DC-DC converting units couples
The drain output of first metal-oxide-semiconductor takes electricity, the first output end to couple one end of capacitance C2 and resistance R7 in delay locked unit.
Further, the power input of the second output terminal coupling MCU of the DC-DC converting units.
Further, the external power supply is 24V DC power supplies, and the first output end of the DC-DC converting units exports
5V DC power supplies.
Further, the startup closing unit further includes the first protection circuit, and the first protection circuit includes two-way
One end of voltage-stabiliser tube D2, bi-directional voltage stabilizing pipe D2 couple external power supply, other end ground connection.
Further, the second protection circuit is coupled between the startup closing unit and the first metal-oxide-semiconductor, described second protects
Protection circuit includes Schottky diode D3 and capacitance C3, and wherein one end of the cathode of Schottky diode D3 and capacitance C3 coupling is outer
Portion's power supply, other end coupling start the first output end of closing unit.
Further, first metal-oxide-semiconductor protects circuit configured with third, third protection circuit include resistance R4,
Diode D4 and capacitance C4, wherein resistance R4 and diode D4 coupled in parallel are in the grid and startup closing unit of the first metal-oxide-semiconductor
The first output end between, and diode D4 anode coupling start closing unit the first output end；Capacitance C4 is coupled to
Between the drain and gate of one metal-oxide-semiconductor.
Further, the smart electronics power switch further includes man-machine interaction unit, and the man-machine interaction unit includes
The microphone and LCD display for connecting the MCU, for sending out or display alarm information.
Another aspect of the present invention provides a kind of 3D printer, and the 3D printer is configured with intelligence as described above
Electronic power switch, wherein the object driving unit is the motor drive module for connecting printer Z axis platform；In the first MOS
After pipe conducting, the MCU is when detecting that push-button switch is pressed again, to the first enabled letter of startup closing unit output
Number, so that the first metal-oxide-semiconductor is turned off, while the second enable signal is exported to electric-motor drive unit, makes printer Z axis platform reset.
Alternatively, in another embodiment, a kind of 3D printer is configured with smart electronics power switch as described above,
Wherein, the object driving unit is the motor drive module for connecting printer Z axis platform；It is described after the conducting of the first metal-oxide-semiconductor
MCU exports the first enable signal when detecting that push-button switch is pressed again, to the startup closing unit, makes the first MOS
Pipe turns off, while exporting the second enable signal to electric-motor drive unit, makes printer Z axis platform reset；In the process, MCU
It sends and instructs to man-machine interaction unit simultaneously, so that man-machine interaction unit is sent out prompting message prompt client will shut down.
Further, above-mentioned 3D printer, after the conducting of the first metal-oxide-semiconductor, the MCU is in detecting that push-button switch is long
On time, the second enable signal is exported to electric-motor drive unit, makes printer Z axis platform reset.
Beneficial effects of the present invention：
1）Make to become smaller by the electric current of power switch, EMC interference is reduced in switching on and shutting down；
2）Intelligent-induction on off state, protection Z axis platform safety decline；
3）Redundancy Design, even if in the case of a system crash, moreover it is possible to turn off system power supply.
Description of the drawings
Fig. 1 is the unit composition and connection relationship diagram of the smart electronics Power Switching embodiments of the present invention.
Fig. 2 is a kind of partial circuit connection diagram of embodiment of smart electronics power switch of the present invention.
Fig. 3 is the partial circuit connection diagram of second of embodiment of smart electronics power switch of the present invention.
Specific implementation mode
For a further understanding of the present invention, the preferred embodiment of the invention is described with reference to embodiment, still
It should be appreciated that these descriptions are only the feature and advantage further illustrated the present invention, rather than to the claims in the present invention
Limitation.
An embodiment provides a kind of smart electronics power switches, as shown in Figure 1 comprising：
External power supply is coupled, for being based on push-button switch output switching signal, the first metal-oxide-semiconductor is made to be connected, or in receiving the
The startup closing unit of the first metal-oxide-semiconductor is turned off when one enable signal；Source electrode couples external power supply, and grid coupling, which starts, closes list
Member drains and couples the first metal-oxide-semiconductor of object driving unit as output end；Coupling starts closing unit and the first metal-oxide-semiconductor, is based on
The drain electrode of first metal-oxide-semiconductor takes electricity, the delay locked unit for keeping its conducting state when the first metal-oxide-semiconductor is connected；Coupling is opened
Dynamic closing unit and delay locked unit, the state for monitoring the push-button switch, and the first enable signal of output is extremely
Delay locked unit, or the second enable signal is exported to the MCU of object driving unit；And the first metal-oxide-semiconductor and MCU are coupled, it uses
It is object driving unit to drive controll plant in the second enable signal of drain electrode output and/or MCU based on the first metal-oxide-semiconductor.
Wherein, the first metal-oxide-semiconductor in above-described embodiment is chosen as PMOSFET, and object driving unit is chosen as motor driving
Module.
Embodiment as a further preference, the smart electronics power switch in above-described embodiment further include that DC-DC turns
Unit is changed, the drain output of input terminal the first metal-oxide-semiconductor of coupling of the DC-DC converting units takes electricity, the coupling of the first output end to prolong
When lock cell power input, as the power input of delay locked unit, second output terminal couples MCU or object driving
Unit, the power input as MCU or object driving unit.
Using above-mentioned design, object driving unit（Motor drive module）It is connected to external power supply, button by the first metal-oxide-semiconductor
Formula switchs the break-make for only controlling the metal-oxide-semiconductor, therefore does not have high current in switching and pass through, so as to avoid opening or turning off switch
Moment beat electric spark, and generate the defect of larger EMC interference, reduce the type selecting difficulty of power switch.
Meanwhile by the cooperation of electronic switch part and MCU, it can be achieved that the intelligent measurement to push-button switch, Jin Eryou
The break-make and object driving unit of MCU pairs of the first metal-oxide-semiconductor（Motor drive module）Intervened, improves entire power switch
Intelligence degree and redundant safety performance.
As shown in Fig. 2, in one particular embodiment of the present invention, the startup closing unit include start-up circuit and
Circuit is closed, the on and off for controlling the first metal-oxide-semiconductor M1.Wherein, start-up circuit includes push-button switch S1, resistance
One end of R1-R3 and capacitance C1, wherein resistance R1 and R2 couple external power supply JP1, and the other end coupling push button of resistance R1 is opened
One end of S1 and capacitance C1 are closed, and as switch potential monitoring node；One end of the other end coupling resistance R3 of capacitance C1, resistance
The other end of the other end coupling resistance R2 of R3, and couple the first metal-oxide-semiconductor M1's as the first output end for starting closing unit
Grid（It is A points by this vertex ticks to subsequently illustrate conveniently）, the other end ground connection of push-button switch S1.
The closing circuit includes triode Q1, Schottky diode D1 and resistance R8, R9, wherein Schottky diode
The cathode of D1 couples the switch potential monitoring node, and anode couples the collector of triode Q1, and as startup closing unit
Second output terminal couple delay locked unit and the monitoring signals input pin of MCU（In order to subsequently illustrate conveniently, by this node
Labeled as B points）, one end of the base stage coupling resistance R9 of triode Q1, and it is defeated by the first enable signal of resistance R8 couplings MCU
Go out pin, the emitter of triode Q1 and the other end ground connection of resistance R9.
Corresponding, the delay locked unit includes the second metal-oxide-semiconductor M2, resistance R5-R7, capacitance C2 and inside electricity
Potential source, the grid of the first metal-oxide-semiconductor M1 of one end coupling of wherein resistance R5, the drain electrode of the second metal-oxide-semiconductor M2 of other end coupling, second
One end of the grid coupling resistance R6 and capacitance C2 of metal-oxide-semiconductor M2, one end of the other end coupling resistance R7 of resistance R6 and startup are closed
The second output terminal of unit is closed, the other end of capacitance C2 and the other end of resistance R7 couple internal source voltage, the builtin voltage
The drain electrode that source couples the first metal-oxide-semiconductor takes electricity.
Embodiment as a further preference, the internal source voltage are DC-DC converting units, DC-DC conversions
The drain output that the input terminal of unit couples the first metal-oxide-semiconductor takes electricity, the first output end to couple capacitance C2 in delay locked unit
With one end of resistance R7；Second output terminal couples the power input of MCU.
As a kind of optional embodiment, above-mentioned external power supply is 24V DC power supplies, the first of DC-DC converting units
Output end exports 5V DC power supplies, and second output terminal exports 3.3V DC power supplies.
The following detailed description of the operation principle of the smart electronics power switch in above-described embodiment：
1, the formula that gives the button a slight press switch S1 startup power supplies：
JP1 is 24V power inputs, and push-button switch S1 is disconnected when beginning, and the GS pressure differences of the first metal-oxide-semiconductor M1 are 0V.When S1 is pressed
When, starting to charge to capacitance C1, the voltage of A point moments is 12V, and the GS pressure differences of M1 are -12V at this time, to which M1 is connected, first
The drain output VDD24 of metal-oxide-semiconductor M1 has power supply output, DC-DC converting units（Internal source voltage）The first output end VDD5
Also there are 5V voltages；Meanwhile C2, R6, D1, S1 form a circuit, the voltage at the both ends C2 is 0V at this time, so the second metal-oxide-semiconductor M2
GS pressure differences be 5V, to M2 be connected.In this way, the voltage of A points is clamped as 12V, after S1 unclamps, M1 is still connected effectively, is
System powers on success.After short time pressing, unclamping S1, one circuit of C2, R6, D1, S1 not recomposition, i.e. R6 no longer pulls down ground connection,
But a pull-up resistor is collectively constituted with R7, the voltage or 5V at the ends M2 G at this time, therefore M2 is still connected, M1, which is also in, to be led
Logical state.
2, the detection of power switch：
After system electrification, the state of push-button switch S1, the SD signal pins setting of MCU are judged by the voltage detecting to B points
At the pattern of internal pull-up input, as long as S1 is not pressed, the level detected is all high level；If S1 is pressed, electricity
Stream flows into ground by built-in pull-up resistor and D1, i.e., built-in pull-up resistor, D1, S1 form an access, the electricity detected at this time
Flat is low level.If it is low level, then illustrate that switch S1 is pressed, is otherwise high level, S1 is not pressed.
3, long-press push-button switch S1 closes power supply：
After system electrification, after pinning push-button switch S1 for a long time, C2, R6, D1, S1 form a circuit, capacitance C2 and
Resistance R6 forms charging circuit, and 5V power supplys charge to capacitance C2, and by certain time, the voltage at the both ends capacitance C2 is 5V, at this time
The GS both end voltages of second metal-oxide-semiconductor M2 are less than blanking voltage, M2 cut-offs；Simultaneously R2, R3, C1, S1 are also constituted all the way
Access, power supply 24V are powered to C1, and C1 both end voltages are 12V；Due to M2 end so that the flow direction of electric current can only walk R2,
R3, C1, S1 this all the way, C1 charged voltages also become 24V quickly, i.e. A point voltages are 24V, it is therefore provided that the first metal-oxide-semiconductor M1
GS pressure differences are 0V, and M1 is also switched off, system cut-off.Due to the charge and discharge of charge and discharge time ratio C1, R3, R2 built-up circuit of C2, R6
Time is much bigger, therefore the turn-off time depends on the charge and discharge time of C2, R6 circuit.
4, system actively powers off：
The first enable signal of MCU（DisablePower）Output pin output level so that triode Q1 conductings, C2, R6, Q1
(R8, R9) forms access, and due to the presence of D1, power supply can not charge to C1 at this time, so the GS voltages of the second metal-oxide-semiconductor M2 are less than
Blanking voltage, M2 cut-offs so that the voltage of A points rapidly goes to 24V, to make the first metal-oxide-semiconductor M1 be also switched off, cutting system electricity
Source.
In one or several embodiments of the present invention, the optional model STM32F103V8T6 of MCU, the control in circuit
Signal processed or input and output are all connected directly to the respective pin of MCU.
The output of DC-DC units includes 5V and 3.3V, the wherein optional model of main control chip of 5V power supplys output
LM25085MM/NOPB；3.3V is LDO outputs, the optional model LM1117MP-3.3/NOPB of main control chip.
As shown in figure 3, embodiment as a further preference, in one or several embodiments of the present invention：
The startup closing unit further includes the first protection circuit, which includes bi-directional voltage stabilizing pipe D2, this pair
External power supply, other end ground connection are coupled to one end of voltage-stabiliser tube D2.
It is coupled with the second protection circuit between the startup closing unit and the first metal-oxide-semiconductor, the second protection circuit packet
Schottky diode D3 and capacitance C3 are included, wherein one end of the cathode of Schottky diode D3 and capacitance C3 couples external power supply,
Other end coupling starts the output end of closing unit.
First metal-oxide-semiconductor protects circuit configured with third, and it includes resistance R4, diode D4 and electricity that the third, which protects circuit,
Hold C4, wherein resistance R4 and diode D4 coupled in parallel in the first output end of the grid of the first metal-oxide-semiconductor and startup closing unit
（One end of resistance R5 in delay locked unit）Between, and the anode coupling of diode D4 starts the first output of closing unit
End；Capacitance C4 is coupled between the drain and gate of the first metal-oxide-semiconductor.
Embodiment as a further preference, in one or several embodiments of the present invention, the smart electronics
Power switch further includes man-machine interaction unit, and optional includes the microphone and LCD display of connection MCU, for sending out or showing
Show prompting message.
Another aspect of the present invention provides a kind of 3D printer, and the 3D printer is configured with as described above at least one
Smart electronics power switch in kind embodiment.Wherein, the object driving unit is chosen as connection printer Z axis platform
Motor drive module.Meanwhile the MCU and man-machine interaction unit is chosen as the included microprocessor and/or LCD of 3D printer
Display screen and microphone.
At this point, in one embodiment, after the conducting of system electrification i.e. the first metal-oxide-semiconductor, MCU is detecting that push button opens
When pass S1 is pressed again, the first enable signal is exported to delay locked unit, the first metal-oxide-semiconductor is made to turn off, while being driven to motor
Unit exports the second enable signal, makes printer Z axis platform reset.
Alternatively, in another embodiment, after the conducting of system electrification i.e. the first metal-oxide-semiconductor, MCU is detecting push button
When switch S1 is pressed again, the first enable signal is exported to closing unit is started, so that the first metal-oxide-semiconductor is turned off, while being driven to motor
Moving cell exports the second enable signal, makes printer Z axis platform reset；In the process, MCU is sent out to man-machine interaction unit simultaneously
Instruction is sent, so that man-machine interaction unit is sent out prompting message prompt client will shut down.
On the other hand, in above-mentioned one or more of embodiments, after the conducting of system electrification i.e. the first metal-oxide-semiconductor, MCU exists
It detects push-button switch S1 long on time, exports the second enable signal to electric-motor drive unit, make printer Z axis platform reset；
In the process, system automatically powers off.（Specific work process illustrate referring to aforementioned intelligent electronic power switch operation principle
3 points）
Using above-mentioned design, the 3D printer in the embodiment of the present invention has following performance：
1）In the event of a power failure, click button formula switchs, system electrification；
2）In the case of system electrification, push-button switch is pressed, system can detect that switch is pressed, and passes through 3D printer at this time
Included LCD display and/or voice module prompt client will shut down, while if platform is in certain altitude, printing is flat
Platform can automatically return to extreme lower position.
3）In the case of system electrification, it is more than 5 seconds to pin push-button switch, even if in the case of a system crash, intelligence
The power supply that can drop cutting system can be switched, and print platform automatically returns to extreme lower position in the process.
The explanation of above example is only intended to facilitate the understanding of the method and its core concept of the invention.It should be pointed out that pair
For those skilled in the art, without departing from the principle of the present invention, the present invention can also be carried out
Some improvements and modifications, these improvement and modification are also fallen within the protection scope of the claims of the present invention.
Claims (16)
1. a kind of smart electronics power switch, which is characterized in that including：
Start closing unit, couples external power supply, for based on push-button switch output switching signal, the first metal-oxide-semiconductor being made to be connected,
And turn off the first metal-oxide-semiconductor when receiving the first enable signal；
First metal-oxide-semiconductor, source electrode couple external power supply, and grid coupling starts closing unit, and drain electrode is driven as output end coupling object
Moving cell；
Delay locked unit, coupling start closing unit and the first metal-oxide-semiconductor, the drain electrode based on the first metal-oxide-semiconductor and take electricity, for the
One metal-oxide-semiconductor keeps its conducting state when being connected；
MCU, coupling start closing unit and delay locked unit, the state for monitoring the push-button switch, and output
First enable signal is to starting closing unit, or the second enable signal of output is to object driving unit；
And object driving unit, the first metal-oxide-semiconductor and MCU are coupled, drain electrode output and/or MCU based on the first metal-oxide-semiconductor are used for
The second enable signal drive controll plant.
2. smart electronics power switch as described in claim 1, which is characterized in that first metal-oxide-semiconductor is PMOSFET.
3. smart electronics power switch as claimed in claim 2, which is characterized in that the startup closing unit includes starting electricity
Road and closing circuit；The start-up circuit includes push-button switch S1, resistance R1-R3 and capacitance C1, wherein resistance R1's and R2
One end couples external power supply, and the other end of resistance R1 couples one end of push-button switch S1 and capacitance C1, and as switch current potential
Monitoring node；One end of the other end coupling resistance R3 of capacitance C1, the other end of the other end coupling resistance R2 of resistance R3, and make
The first output end to start closing unit couples the grid of the first metal-oxide-semiconductor, the other end ground connection of push-button switch S1.
4. smart electronics power switch as claimed in claim 3, which is characterized in that the closing circuit include triode Q1,
The cathode of Schottky diode D1 and resistance R8, R9, wherein Schottky diode D1 couple the switch potential monitoring node, just
Pole couples the collector of triode Q1, and couples delay locked unit and MCU as the second output terminal for starting closing unit
Monitoring signals input pin, one end of the base stage coupling resistance R9 of triode Q1, and couple the first of MCU by resistance R8 and enable
Signal output pin, the emitter of triode Q1 and the other end ground connection of resistance R9.
5. smart electronics power switch as claimed in claim 4, which is characterized in that the delay locked unit includes second
Metal-oxide-semiconductor M2, resistance R5-R7, capacitance C2 and internal source voltage, one end of wherein resistance R5 couples the grid of the first metal-oxide-semiconductor, another
The drain electrode of the second metal-oxide-semiconductor M2 of end coupling, one end of the grid coupling resistance R6 and capacitance C2 of the second metal-oxide-semiconductor M2, resistance R6's is another
One end of one end coupling resistance R7 and the second output terminal for starting closing unit, the other end of the other end and resistance R7 of capacitance C2
Internal source voltage is coupled, the drain electrode that the internal source voltage couples the first metal-oxide-semiconductor takes electricity.
6. smart electronics power switch as described in claim 1, which is characterized in that further include DC-DC converting units, it is described
The drain output that the input terminal of DC-DC converting units couples the first metal-oxide-semiconductor takes electricity, the first output end to couple delay locked unit
Power input.
7. smart electronics power switch as claimed in claim 5, which is characterized in that the internal source voltage is converted for DC-DC
The drain output of unit, input terminal the first metal-oxide-semiconductor of coupling of the DC-DC converting units takes electricity, the coupling of the first output end to prolong
When lock cell in capacitance C2 and resistance R7 one end.
8. smart electronics power switch as claimed in claims 6 or 7, which is characterized in that the second of the DC-DC converting units
Output end couples the power input of MCU.
9. smart electronics power switch as claimed in claims 6 or 7, which is characterized in that the external power supply is 24V direct currents
First output end in source, the DC-DC converting units exports 5V DC power supplies.
10. the smart electronics power switch as described in claim 3 or 4 or 5, which is characterized in that the startup closing unit is also
Including the first protection circuit, the first protection circuit includes bi-directional voltage stabilizing pipe D2, and one end coupling of bi-directional voltage stabilizing pipe D2 is outer
Portion's power supply, other end ground connection.
11. the smart electronics power switch as described in claim 3 or 4 or 5, which is characterized in that the startup closing unit and
It is coupled with the second protection circuit between first metal-oxide-semiconductor, the second protection circuit includes Schottky diode D3 and capacitance C3,
The cathode of middle Schottky diode D3 and one end of capacitance C3 couple external power supply, and other end coupling starts the first of closing unit
Output end.
12. the smart electronics power switch as described in claim 3 or 4 or 5, which is characterized in that first metal-oxide-semiconductor is configured with
Third protects circuit, and the third protection circuit includes resistance R4, diode D4 and capacitance C4, wherein resistance R4 and diode D4
Coupled in parallel is between the grid and the first output end for starting closing unit of the first metal-oxide-semiconductor, and the anode coupling of diode D4
Start the first output end of closing unit；Capacitance C4 is coupled between the drain and gate of the first metal-oxide-semiconductor.
13. smart electronics power switch as described in claim 1, which is characterized in that further include man-machine interaction unit, the people
Machine interactive unit includes connecting the microphone and LCD display of the MCU, for sending out or display alarm information.
14. a kind of 3D printer, which is characterized in that the 3D printer configuration is just like claim 1-12 any one of them intelligence
Energy electronic power switch, wherein the object driving unit is the motor drive module for connecting printer Z axis platform；First
After metal-oxide-semiconductor conducting, the MCU makes when detecting that push-button switch is pressed again to startup closing unit output first
Energy signal, makes the first metal-oxide-semiconductor turn off, while exporting the second enable signal to electric-motor drive unit, keeps printer Z axis platform multiple
Position.
15. a kind of 3D printer, which is characterized in that the 3D printer is configured with smart electronics as claimed in claim 13 electricity
Source switch, wherein the object driving unit is the motor drive module for connecting printer Z axis platform；It is connected in the first metal-oxide-semiconductor
Afterwards, the MCU exports the first enable signal to the startup closing unit, makes when detecting that push-button switch is pressed again
First metal-oxide-semiconductor turns off, while exporting the second enable signal to electric-motor drive unit, makes printer Z axis platform reset；In this process
In, MCU sends to man-machine interaction unit instruct simultaneously, and so that man-machine interaction unit is sent out prompting message prompt client will shut down.
16. the 3D printer as described in claims 14 or 15, which is characterized in that the first metal-oxide-semiconductor conducting after, the MCU in
It detects push-button switch length on time, exports the second enable signal to electric-motor drive unit, make printer Z axis platform reset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810501075.6A CN108539970A (en) | 2018-05-23 | 2018-05-23 | Smart electronics power switch and the 3D printer for configuring the switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810501075.6A CN108539970A (en) | 2018-05-23 | 2018-05-23 | Smart electronics power switch and the 3D printer for configuring the switch |
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| Publication Number | Publication Date |
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| CN108539970A true CN108539970A (en) | 2018-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810501075.6A Pending CN108539970A (en) | 2018-05-23 | 2018-05-23 | Smart electronics power switch and the 3D printer for configuring the switch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111338458A (en) * | 2020-02-29 | 2020-06-26 | 苏州浪潮智能科技有限公司 | Real-time interactive hard disk array intelligent energy-saving method and equipment |
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| CN103338029A (en) * | 2013-06-20 | 2013-10-02 | 歌尔声学股份有限公司 | Automatic reset device |
| CN105269819A (en) * | 2015-10-27 | 2016-01-27 | 青岛尤尼科技有限公司 | Multi-spray-head 3D printer and cooperative printing method thereof |
| WO2018027502A1 (en) * | 2016-08-08 | 2018-02-15 | 深圳市大疆创新科技有限公司 | Switch-on/off circuit and droplet detector |
| CN208241570U (en) * | 2018-05-23 | 2018-12-14 | 杭州先临爱打印科技有限公司 | Smart electronics power switch and the 3D printer for configuring the switch |
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| CN103338029A (en) * | 2013-06-20 | 2013-10-02 | 歌尔声学股份有限公司 | Automatic reset device |
| CN105269819A (en) * | 2015-10-27 | 2016-01-27 | 青岛尤尼科技有限公司 | Multi-spray-head 3D printer and cooperative printing method thereof |
| WO2018027502A1 (en) * | 2016-08-08 | 2018-02-15 | 深圳市大疆创新科技有限公司 | Switch-on/off circuit and droplet detector |
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