CN206908342U - USB TYPE C interface charging circuits - Google Patents

USB TYPE C interface charging circuits Download PDF

Info

Publication number
CN206908342U
CN206908342U CN201720729443.3U CN201720729443U CN206908342U CN 206908342 U CN206908342 U CN 206908342U CN 201720729443 U CN201720729443 U CN 201720729443U CN 206908342 U CN206908342 U CN 206908342U
Authority
CN
China
Prior art keywords
switch
electrically connected
type
signal
resistance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201720729443.3U
Other languages
Chinese (zh)
Inventor
王定国
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DONGGUAN QIYI ELECTRONIC MACHINERY Co Ltd
Original Assignee
DONGGUAN QIYI ELECTRONIC MACHINERY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DONGGUAN QIYI ELECTRONIC MACHINERY Co Ltd filed Critical DONGGUAN QIYI ELECTRONIC MACHINERY Co Ltd
Priority to CN201720729443.3U priority Critical patent/CN206908342U/en
Application granted granted Critical
Publication of CN206908342U publication Critical patent/CN206908342U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The utility model discloses a kind of USB TYPE C interface charging circuits, and it includes the first TYPE C interface recognition unit, the 2nd TYPE C interface recognition unit, the first signal switches set, the second signal switches set and control unit.The utility model is by setting the first TYPE C interface recognition units, 2nd TYPE C interface recognition unit and control unit, and coordinate and be electrically connected with control unit and reference potential unit, to the input terminal voltage of regulation unit, and then control the power supply stream terminal voltage of the first TYPE C interface recognition unit and the 2nd TYPE C interface recognition units, so as to which control the first supplying resistance and the second supplying resistance flows through current value, so that when the first TYPE C interface unit access charge prepd, when 2nd TYPE C interface unit does not access charge prepd, reach the state that fast charge is carried out to charge prepd；When first, second TYPE C interface unit accesses charge prepd, the purpose that two-way fills is realized.

Description

USB TYPE-C interface charging circuits
Technical field
Charging circuit technical field is the utility model is related to, more particularly, to a kind of USB TYPE-C interface charging circuits.
Background technology
Present charger is typically all the charger of an interface output, but under current living standard, a people uses Two or three mobile phone or tablet personal computer it is also not within minority, the charger of relative single interface has not met life trend.
Now popular fast charge, i.e., the same battery capacity shortens the charging interval in the relative time, when shortening charging Between will increase charging current, but the data-interface of high current will maintain high current using USB TYPE-C interfaces Ability, maximum current 5A.
Present USB TYPE-C interface electronics products are increasingly popularized, the relative charger for using USB TYPE-C interfaces It is more and more, it is just more convenient in a situation of use if a charger has multiple USB TYPE-C interfaces, but multiple In the case that USB TYPE-C interfaces access electronic product simultaneously, the charger of USB TYPE-C interfaces can not ensure charging current Mean allocation.
Utility model content
Based on this, it is necessary to the problem of existing for above-mentioned background technology, there is provided a kind of USB TYPE-C interfaces charging electricity Road, realize the purpose that single channel fast charge two-way fills.
To achieve the above object, the utility model discloses a kind of USB TYPE-C interface charging circuits, it includes first TYPE-C interfaces recognition unit, the 2nd TYPE-C interfaces recognition unit, the first signal switches set, the second signal switches set and control Unit, the first TYPE-C interfaces recognition unit include the first identification chip unit, the first output switch and the first TYPE-C Interface unit, the switch terminals of the first identification chip unit are electrically connected at the grid of the first output switch, and described first is defeated The drain electrode for going out switch is electrically connected with external power supply unit, and the source electrode of first output switch is electrically connected with the first TYPE-C interfaces The supply voltage terminal of unit, the signal end of the first identification chip unit are electrically connected with the signal of the first TYPE-C interface units End, the first TYPE-C interface units supply current terminal to be used to provide charging current；
The 2nd TYPE-C interfaces recognition unit includes the second identification chip unit, the second output switch and second TYPE-C interface units, the switch terminals of the second identification chip unit are electrically connected at the grid of the second output switch, described The drain electrode of second output switch is electrically connected with external power supply unit, and the source electrode of second output switch is electrically connected with second The supply voltage terminal of TYPE-C interface units, the signal end of the second identification chip unit are electrically connected with the 2nd TYPE-C interface lists The signal end of member, the 2nd TYPE-C interface units supply current terminal to be used to provide charging current；
Described control unit includes first comparator and the second comparator, and the input of the first comparator is electrically connected with First reference potential unit, the first reference potential unit include the first input switch, the transmitting of first input switch Pole is electrically connected with the first reference voltage, and the colelctor electrode of first input switch is electrically connected with first resistor and the second electricity successively Resistance, the second resistance ground connection, the base stage of first input switch are electrically connected between 3rd resistor and the 4th resistance, institute The source terminal that 3rd resistor one end is electrically connected at the first output switch is stated, described 4th resistance one end is electrically connected at the first electricity Between resistance and second resistance, it is connected respectively between described second resistance one end, first resistor and second resistance in the first ratio Compared with the input of device, the input that first comparator is correspondingly connected to for current terminal of the first TYPE-C interface units；Institute The input for stating the second comparator is electrically connected with the second reference potential unit, and the second reference potential unit includes the second input Switch, the emitter stage of second input switch are electrically connected with the second reference voltage, the colelctor electrode of second input switch according to Secondary to be electrically connected with the 5th resistance and the 6th resistance, the 6th resistance eutral grounding, the base stage of second input switch electrically connects It is connected between the 7th resistance and the 8th resistance, described 7th resistance one end is electrically connected at the source terminal of the second output switch, institute State the 8th resistance one end to be electrically connected between the 5th resistance and the 6th resistance, described 6th resistance one end, the 5th resistance and It is connected respectively between six resistance and supplies current terminal pair in the input of the second comparator, the 2nd TYPE-C interface units The input of the second comparator should be connected to；
The first TYPE-C interface units are electrically connected with the first supplying resistance, the 2nd TYPE-C for current terminal Interface unit is electrically connected with the second supplying resistance, first supplying resistance and second supplying resistance one end point for current terminal It is not grounded；
The input of the first signal switches set is electrically connected with the output end of first comparator, the first signal switch The output end of group is electrically connected with the supply voltage terminal of the first TYPE-C interface units, and the input of the second signal switches set is electrical The output end of the second comparator is connected, the output end of the second signal switches set is electrically connected with the 2nd TYPE-C interface units Supply voltage terminal.
In one of the embodiments, in addition to LED lamp unit, the LED lamp unit include the first LED and second LED, the cathode terminal ground connection of first LED and the second LED, the anode tap of first LED are electrically connected with first The supply voltage terminal of TYPE-C interface units, the anode tap of second LED are electrically connected with the confession of the 2nd TYPE-C interface units Voltage end.
In one of the embodiments, the first signal switches set include the first signal switch, the second signal switch and 3rd signal is switched, and the output end of the first comparator is electrically connected with the grid of the first signal switch, and first signal is opened The source ground of pass, the drain electrode of the first signal switch are electrically connected with the grid of the second signal switch, and second signal is opened The grid of the first output switch is electrically connected in the grid of the source electrode of pass and the 3rd signal switch, the 3rd signal switch Source ground, the drain electrode of the 3rd signal switch are electrically connected by the supply voltage terminal of a resistance and the first TYPE-C interface units Connect, the drain electrode of the first signal switch and the drain electrode of the second signal switch are electrically connected with external power supply unit respectively.
In one of the embodiments, the first signal switches set also includes the 4th signal switch, the 4th signal The grid of switch is electrically connected with the source terminal of the second output switch, the source electrode electrical ground of the 4th signal switch, and described the The drain electrode of four signals switch is electrically connected with the ISEL ends of the first identification chip unit.
In one of the embodiments, the second signal switches set include the 5th signal switch, the 6th signal switch and 7th signal is switched, and the output end of second comparator is electrically connected with the grid of the 5th signal switch, and the 5th signal is opened The source ground of pass, the drain electrode of the 5th signal switch are electrically connected with the grid of the 6th signal switch, and the 6th signal is opened The grid of the second output switch is electrically connected in the grid of the source electrode of pass and the 7th signal switch, the 7th signal switch Source ground, the drain electrode of the 7th signal switch are electrically connected by the supply voltage terminal of a resistance and the 2nd TYPE-C interface units Connect, the drain electrode of the 5th signal switch and the drain electrode of the 6th signal switch are electrically connected with external power supply unit respectively.
In one of the embodiments, the second signal switches set also includes the 8th signal switch, the 8th signal The grid of switch is electrically connected with the source terminal of the second output switch, the source electrode electrical ground of the 8th signal switch, and described the The drain electrode of eight signals switch is electrically connected with the ISEL ends of the second identification chip unit.
In one of the embodiments, first output switch is managed for PMOSFET.
In one of the embodiments, second output switch is managed for PMOSFET.
In one of the embodiments, described control unit uses TL358 chip structures.
In one of the embodiments, first reference voltage is provided by mu balanced circuit unit, the mu balanced circuit list Member uses TL431 integrated circuitry constructions.
In summary, the utility model USB TYPE-C interfaces charging circuit is single by setting the first TYPE-C interfaces to identify Member, the 2nd TYPE-C interfaces recognition unit and control unit, and coordinate and be electrically connected with control unit and reference potential unit, use With the input terminal voltage of regulation unit, and then control the first TYPE-C interfaces recognition unit and the identification of the 2nd TYPE-C interfaces The power supply stream terminal voltage of unit, so as to which control the first supplying resistance and the second supplying resistance flows through current value so that when first When TYPE-C interface units access charge prepd, the 2nd TYPE-C interface units do not access charge prepd, reach to charge prepd Carry out the state of fast charge；When the first TYPE-C interface units access charge prepd, the 2nd TYPE-C interface units also access charging During product, reach the state filled to charge prepd, so as to realize purpose that single channel fast charge two-way fills.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of the utility model USB TYPE-C interface charging circuits；
Fig. 2 is the structural representation of the charging housing of the utility model USB TYPE-C interface charging circuits.
Embodiment
As shown in figure 1, the utility model USB TYPE-C interfaces charging circuit includes the first TYPE-C interface recognition units 10th, the 2nd TYPE-C interfaces recognition unit 20, the first signal switches set 30, the second signal switches set 40 and control unit 50, institute The first TYPE-C interfaces recognition unit 10 is stated to connect including the first identification chip unit U1, the first output switch Q1 and the first TYPE-C Mouth unit T1, the first identification chip unit U1, the first output switch Q1 and the first TYPE-C interface units T1 are traditional Electrical connection, the first output switch Q1 are that PMOSFET manages (p-type metal-oxide half field effect transistor), first identification Chip unit U1 switch terminals are electrically connected at the first output switch Q1 grid, and the drain electrode of the first output switch Q1 is electrical Connect external power supply unit 60, the input voltage of the external power supply unit 60 is 5V, the input current of external power supply unit 60 For 6A, the source electrode of the first output switch Q1 is electrically connected with the first TYPE-C interface units T1 supply voltage terminal, and described first Identification chip unit U1 signal end is electrically connected with the first TYPE-C interface units T1 signal end, the first TYPE-C interfaces Unit T1's supplies current terminal Gnd_1 to be used to provide charging current.
The 2nd TYPE-C interfaces recognition unit 20 includes the second identification chip unit U2, the second output switch Q2 and the Two TYPE-C interface units T2, the second identification chip unit U2, the second output switch Q2 and the 2nd TYPE-C interface units T2 is traditional electrical connection, and the second output switch Q2 is that PMOSFET manages (p-type metal-oxide half field effect transistor), institute The switch terminals for stating the second identification chip unit U2 are electrically connected at the second output switch Q2 grid, the second output switch Q2 Drain electrode be electrically connected with external power supply unit 60, the source electrode of the second output switch Q2 is electrically connected with the 2nd TYPE-C interface lists First T2 supply voltage terminal, the signal end of the second identification chip unit U2 are electrically connected with the 2nd TYPE-C interface units T2 letter Number end, being used for for current terminal Gnd_2 of the 2nd TYPE-C interface units T2 provide charging current.
Described control unit 50 uses TL358 chip structures, and described control unit 50 includes first comparator U3 and second Comparator U4, the first comparator U3 input are electrically connected with the first reference potential unit 70, first reference potential The emitter stage that unit 70 includes the first input switch Q3, the first input switch Q3 is electrically connected with the first reference voltage, described First reference voltage is 2.5V, and first reference voltage is provided by mu balanced circuit unit 80, and the mu balanced circuit unit 80 is adopted With TL431 integrated circuitry constructions, the colelctor electrode of the first input switch Q3 is electrically connected with first resistor R1 and second successively Resistance R2, the second resistance R2 ground connection, the base stage of the first input switch Q3 are electrically connected at 3rd resistor R3 and the 4th Between resistance R4, described 3rd resistor R3 one end is electrically connected at the first output switch Q1 source terminal, for monitoring second TYPE-C interface units T2 supply voltage terminal voltage, described 4th resistance R4 one end are electrically connected at the electricity of first resistor R1 and second Between hindering R2, described second resistance R2 one end, first resistor R1 are connected respectively compared with first between second resistance R2 Device U3 input, the first TYPE-C interface units T1's is correspondingly connected to first comparator U3's for current terminal Gnd_1 Input.
The input of the second comparator U4 is electrically connected with the second reference potential unit 90, the second reference potential list Emitter stages of the member 90 including the second input switch Q4, the second input switch Q4 are electrically connected with the second reference voltages, and described the Two reference voltages are 2.5V, and second reference voltage is provided by mu balanced circuit unit 80, the collection of the second input switch Q4 Electrode is electrically connected with the 5th resistance R5 and the 6th resistance R6, the 6th resistance R6 ground connection, second input switch successively Q4 base stage is electrically connected between the 7th resistance R7 and the 8th resistance R8, and described 7th resistance R7 one end is electrically connected at second Output switch Q2 source terminal, for monitoring the first TYPE-C interface units T1 supply voltage terminal voltage, the 8th resistance R8 One end is electrically connected between the 5th resistance R5 and the 6th resistance R6, described 6th resistance R6 one end, the 5th resistance R5 and the 6th It is connected respectively between resistance R6 in the second comparator U4 input, the power supply stream of the 2nd TYPE-C interface units T2 End Gnd_2 is correspondingly connected to the second comparator U4 input.
The first TYPE-C interface units T1's is electrically connected with the first supplying resistance Rsen_1 for current terminal Gnd_1, The 2nd TYPE-C interface units T2's is electrically connected with the second supplying resistance Rsen_2 for current terminal Gnd_2, and described first Supplying resistance Rsen_1 and second supplying resistance Rsen_2 one end are grounded respectively.
The input of the first signal switches set 30 is electrically connected with first comparator U3 output end, first signal The output end of switches set 30 is electrically connected with the first TYPE-C interface units T1 supply voltage terminal, and the first signal switches set 30 is wrapped The first signal switch Qa, the second signal switch Qb, the 3rd signal switch Qg and the 4th signal switch Qe, first signal is included to open It is respectively NMOSFET pipe (N-type MOS fields to close Qa, the second signal switch Qb, the 3rd signal switch Qg and the 4th signal switch Qe Imitate transistor), the grid of the 4th signal switch Qe is electrically connected with the second output switch Q2 source terminal, the 4th signal Qe source electrode electrical ground is switched, the drain electrode of the 4th signal switch Qe is electrically connected with the first identification chip unit U1 ISEL End；The output end of the first comparator U3 is electrically connected with the first signal switch Qa grid, the first signal switch Qa's Source ground, the drain electrode of the first signal switch Qa are electrically connected with the second signal switch Qb grid, and second signal is opened The first output switch Q1 grid, the 3rd signal is electrically connected in the grid of the source electrode and the 3rd signal switch Qg that close Qb Qg source ground is switched, the drain electrode of the 3rd signal switch Qg passes through a resistance and the first TYPE-C interface units T1 confession Voltage end is electrically connected with, first signal switch Qa drain electrode and the second signal switch Qb drain electrode respectively with externally fed list Member 60 is electrically connected with.
The input of the second signal switches set 40 is electrically connected with the second comparator U4 output end, second signal The output end of switches set 40 is electrically connected with the 2nd TYPE-C interface units T2 supply voltage terminal, and the second signal switches set 40 is wrapped The 5th signal switch Qc, the 6th signal switch Qd, the 7th signal switch Qh and the 8th signal switch Qf, the 5th signal is included to open It is respectively NMOSFET pipe (N-type MOS fields to close Qc, the 6th signal switch Qd, the 7th signal switch Qh and the 8th signal switch Qf Imitate transistor), the grid of the 8th signal switch Qf is electrically connected with the second output switch Q2 source terminal, the 8th signal Qf source electrode electrical ground is switched, the drain electrode of the 8th signal switch Qf is electrically connected with the second identification chip unit U2 ISEL End；The output end of the second comparator U4 is electrically connected with the 5th signal switch Qc grid, the 5th signal switch Qc's Source ground, the drain electrode of the 5th signal switch Qc are electrically connected with the 6th signal switch Qd grid, and the 6th signal is opened The second output switch Q2 grid, the 7th signal is electrically connected in the grid of the source electrode and the 7th signal switch Qh that close Qd Qh source ground is switched, the drain electrode of the 7th signal switch Qh passes through a resistance and the 2nd TYPE-C interface units T2 confession Voltage end is electrically connected with, the 5th signal switch Qc drain electrode and the 6th signal switch Qd drain electrode respectively with externally fed list Member 60 is electrically connected with.
In one of the embodiments, USB TYPE-C interfaces charging circuit also includes LED lamp unit 100, the LED Unit 100 includes the first LED LED1 and the second LED LED2, the first LED LED1 and the second LED LED2 the moon Extreme ground connection, the anode tap of the first LED LED1 is electrically connected with the first TYPE-C interface units T1 supply voltage terminal, described Second LED LED2 anode tap is electrically connected with the 2nd TYPE-C interface units T2 supply voltage terminal；Wherein the first LED LED1 For red light, the second LED LED2 is blue lamp, and the first LED LED1 and the second LED LED2 light simultaneously shows purple lamp Effect.
During the utility model specific works, R1=R5=100K Ω, R2=R6=4.3K Ω, R3=R7=30K Ω are set, R4=R8=400K Ω, when the first TYPE-C interface units T1 accesses charge prepd, the 2nd TYPE-C interface units T2 is not accessed During charge prepd, now, the first output switch Q1 conductings, the second output switch Q2 is off, the 2nd TYPE-C interfaces Unit T2 does not have control source, and the first input switch Q3 is operated, now, the magnitude of voltage Va between first resistor R1 and second resistance R2 =2.5V × [4.3K/ (4.3K+100K)]=0.1V, the first supplying resistance Rsen_1=33m Ω are set, then the first TYPE-C connects The mouth unit T1 current value I for current terminal Gnd_10=0.1V ÷ 33m Ω=3A, it is known that the 2nd TYPE-C interface units T2 does not have The second LED of control source LED2 does not work, and the first TYPE-C interface units T1 has the first LED of control source LED1 to light, bright Red light represents that charge prepd is in the fast charge state that charging current value is 3A.
When the first TYPE-C interface units T1 accesses charge prepd, the 2nd TYPE-C interface units T2 also accesses charge prepd When, now, the first output switch Q1 and the second output switch Q2 are both turned on, the first TYPE-C interface units T1 and the 2nd TYPE-C Interface unit T2 has control source, and input voltage is provided by external power supply unit 60, the input voltage of external power supply unit 60 Vbus_in=5V, now, the first TYPE-C interface units T1 supply voltage terminal and the 2nd TYPE-C interface units T2 voltage supplied The magnitude of voltage at end is Vbus1=Vbus2=Vbus_in=5V, and the first input switch Q3 base stage terminal voltage value Vb and second is defeated The base stage terminal voltage value Vb ' for entering to switch Q4 is Vb=Vb '=5V × [(4.3K+400K)/(4.3K+400K+30K)]=4.65V, First input switch Q3 and the second input switch Q4 are inoperative, so the magnitude of voltage Va between first resistor R1 and second resistance R2 Magnitude of voltage Va ' between the 5th resistance R5 and the 6th resistance R6 is Va=Va '=5V × [4.3K/ (4.3K+400K+30K)] =0.05V, set the first supplying resistance Rsen_1 and the second supplying resistance Rsen_2Rsen_1=Rsen_2=33m Ω, then the The one TYPE-C interface units T1 current value I for current terminal Gnd_10With the 2nd TYPE-C interface units T2 for current terminal Gnd_2 current value I0' it is I0=I0'=0.05V ÷ 33m Ω=1.5A, it is known that the first TYPE-C interface units T1 has voltage defeated Enter the first LED LED1 to send out a warning, the 2nd TYPE-C interface units T2 has control source the second LED LED2 light blue lamps, two LED Lamp is all bright, is shown as purple lamp effect, represents that charge prepd is in charging current value and fills state for 1.5A.
As shown in Fig. 2 the utility model USB TYPE-C interfaces charging circuit can have two groups in actual use, specifically Ground, USB TYPE-C interfaces charging circuits can be arranged in charging housing 200, and the left and right sides is set respectively in charging housing 200 First TYPE-C interface units T1 and the 2nd TYPE-C interface unit T2, LED lamp unit 100 are separately positioned on the first TYPE-C and connect Above mouth unit T1 and the 2nd TYPE-C interface units T2.
In summary, the utility model USB TYPE-C interfaces charging circuit is single by setting the first TYPE-C interfaces to identify First 10, the 2nd TYPE-C interfaces recognition unit 20 and control unit 50, and coordinate control unit 50 and reference potential unit electricity Property connection, to the input terminal voltage of regulation unit 50, and then control the first TYPE-C interfaces recognition unit 10 and second The power supply stream terminal voltage of TYPE-C interfaces recognition unit 20, so as to control the first supplying resistance Rsen_1 and the second supplying resistance Rsen_2's flows through current value so that when the first TYPE-C interface units T1 accesses charge prepd, the 2nd TYPE-C interface units When T2 does not access charge prepd, reach the state that fast charge is carried out to charge prepd；When the first TYPE-C interface units T1 accesses are filled When electric product, the 2nd TYPE-C interface units T2 also access charge prepd, reach the state filled to charge prepd, so as to Realize the purpose that single channel fast charge two-way fills.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed, But therefore it can not be interpreted as the limitation to the utility model patent scope.It should be pointed out that for the common of this area For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to In the scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.

Claims (10)

  1. A kind of 1. USB TYPE-C interface charging circuits, it is characterised in that：Including the first TYPE-C interfaces recognition unit, second TYPE-C interfaces recognition unit, the first signal switches set, the second signal switches set and control unit, the first TYPE-C interfaces Recognition unit includes the first identification chip unit, the first output switch and the first TYPE-C interface units, the first identification core The switch terminals of blade unit are electrically connected at the grid of the first output switch, and the drain electrode of first output switch is electrically connected with outside Power supply unit, the supply voltage terminal of source electrode the first TYPE-C interface units of electric connection of first output switch, described first The signal end of identification chip unit is electrically connected with the signal end of the first TYPE-C interface units, the first TYPE-C interface units For current terminal be used for charging current is provided；
    The 2nd TYPE-C interfaces recognition unit connects including the second identification chip unit, the second output switch and the 2nd TYPE-C Mouth unit, the switch terminals of the second identification chip unit are electrically connected at the grid of the second output switch, second output The drain electrode of switch is electrically connected with external power supply unit, and the source electrode of second output switch is electrically connected with the 2nd TYPE-C interface lists The supply voltage terminal of member, the signal end of the second identification chip unit are electrically connected with the signal end of the 2nd TYPE-C interface units, The 2nd TYPE-C interface units supply current terminal to be used to provide charging current；
    Described control unit includes first comparator and the second comparator, and the input of the first comparator is electrically connected with first Reference potential unit, the first reference potential unit include the first input switch, the emitter stage electricity of first input switch Property the first reference voltage of connection, the colelctor electrode of first input switch is electrically connected with first resistor and second resistance successively, The second resistance ground connection, the base stage of first input switch is electrically connected between 3rd resistor and the 4th resistance, described 3rd resistor one end is electrically connected at the source terminal of the first output switch, and described 4th resistance one end is electrically connected at first resistor And between second resistance, described second resistance one end, first resistor are connected respectively compared with first between second resistance The input of device, the input that first comparator is correspondingly connected to for current terminal of the first TYPE-C interface units；It is described The input of second comparator is electrically connected with the second reference potential unit, and the second reference potential unit includes the second input and opened Close, the emitter stage of second input switch is electrically connected with the second reference voltage, and the colelctor electrode of second input switch is successively The 5th resistance and the 6th resistance, the 6th resistance eutral grounding are electrically connected with, the base stage of second input switch is electrically connected with Between the 7th resistance and the 8th resistance, described 7th resistance one end is electrically connected at the source terminal of the second output switch, described 8th resistance one end is electrically connected between the 5th resistance and the 6th resistance, described 6th resistance one end, the 5th resistance and the 6th It is connected respectively between resistance and is corresponded in the input of the second comparator, the 2nd TYPE-C interface units for current terminal It is connected to the input of the second comparator；
    The first TYPE-C interface units are electrically connected with the first supplying resistance, the 2nd TYPE-C interfaces for current terminal Unit is electrically connected with the second supplying resistance for current terminal, and first supplying resistance and second supplying resistance one end connect respectively Ground；
    The input of the first signal switches set is electrically connected with the output end of first comparator, the first signal switches set Output end is electrically connected with the supply voltage terminal of the first TYPE-C interface units, and the input of the second signal switches set is electrically connected with The output end of second comparator, the output end of the second signal switches set are electrically connected with the power supply of the 2nd TYPE-C interface units Pressure side.
  2. 2. USB TYPE-C interface charging circuits according to claim 1, it is characterised in that：Also include LED lamp unit, institute Stating LED lamp unit includes the first LED and the second LED, and the cathode terminal ground connection of first LED and the second LED is described The anode tap of first LED is electrically connected with the supply voltage terminal of the first TYPE-C interface units, the anode tap electricity of second LED Property connection the 2nd TYPE-C interface units supply voltage terminal.
  3. 3. USB TYPE-C interface charging circuits according to claim 1, it is characterised in that：The first signal switches set Including the first signal switch, the second signal switch and the 3rd signal switch, the output end of the first comparator is electrically connected with the The grid of one signal switch, the source ground of first signal switch, the drain electrode of the first signal switch are electrically connected with the It is defeated that the grid of two signals switch, the source electrode of the second signal switch and the grid of the 3rd signal switch are electrically connected first Go out the grid of switch, the source ground of the 3rd signal switch, the drain electrode of the 3rd signal switch passes through a resistance and the The supply voltage terminal of one TYPE-C interface units is electrically connected with, the drain electrode of the first signal switch and the drain electrode of the second signal switch It is electrically connected with respectively with external power supply unit.
  4. 4. USB TYPE-C interface charging circuits according to claim 3, it is characterised in that：The first signal switches set Also including the 4th signal to switch, the grid of the 4th signal switch is electrically connected with the source terminal of the second output switch, and described the The source electrode electrical ground of four signals switch, the drain electrode of the 4th signal switch are electrically connected with the ISEL of the first identification chip unit End.
  5. 5. USB TYPE-C interface charging circuits according to claim 1, it is characterised in that：The second signal switches set Including the 5th signal switch, the 6th signal switch and the 7th signal switch, the output end of second comparator is electrically connected with the The grid of five signals switch, the source ground of the 5th signal switch, the drain electrode of the 5th signal switch are electrically connected with the It is defeated that the grid of six signals switch, the source electrode of the 6th signal switch and the grid of the 7th signal switch are electrically connected second Go out the grid of switch, the source ground of the 7th signal switch, the drain electrode of the 7th signal switch passes through a resistance and the The supply voltage terminal of two TYPE-C interface units is electrically connected with, the drain electrode of the 5th signal switch and the drain electrode of the 6th signal switch It is electrically connected with respectively with external power supply unit.
  6. 6. USB TYPE-C interface charging circuits according to claim 5, it is characterised in that：The second signal switches set Also including the 8th signal to switch, the grid of the 8th signal switch is electrically connected with the source terminal of the second output switch, and described the The source electrode electrical ground of eight signals switch, the drain electrode of the 8th signal switch are electrically connected with the ISEL of the second identification chip unit End.
  7. 7. USB TYPE-C interface charging circuits according to claim 1, it is characterised in that：First output switch is PMOSFET is managed.
  8. 8. USB TYPE-C interface charging circuits according to claim 1, it is characterised in that：Second output switch is PMOSFET is managed.
  9. 9. USB TYPE-C interface charging circuits according to claim 1, it is characterised in that：Described control unit uses TL358 chip structures.
  10. 10. USB TYPE-C interface charging circuits according to claim 1, it is characterised in that：First reference voltage There is provided by mu balanced circuit unit, the mu balanced circuit unit uses TL431 integrated circuitry constructions.
CN201720729443.3U 2017-06-22 2017-06-22 USB TYPE C interface charging circuits Active CN206908342U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720729443.3U CN206908342U (en) 2017-06-22 2017-06-22 USB TYPE C interface charging circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720729443.3U CN206908342U (en) 2017-06-22 2017-06-22 USB TYPE C interface charging circuits

Publications (1)

Publication Number Publication Date
CN206908342U true CN206908342U (en) 2018-01-19

Family

ID=61285459

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720729443.3U Active CN206908342U (en) 2017-06-22 2017-06-22 USB TYPE C interface charging circuits

Country Status (1)

Country Link
CN (1) CN206908342U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021068311A1 (en) * 2019-10-12 2021-04-15 深圳慧能泰半导体科技有限公司 Usb type-c interface circuit and charging method therefor, usb apparatus and electronic device
US11121563B2 (en) 2018-12-27 2021-09-14 Asustek Computer Inc. Power control circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11121563B2 (en) 2018-12-27 2021-09-14 Asustek Computer Inc. Power control circuit
WO2021068311A1 (en) * 2019-10-12 2021-04-15 深圳慧能泰半导体科技有限公司 Usb type-c interface circuit and charging method therefor, usb apparatus and electronic device

Similar Documents

Publication Publication Date Title
CN106208228B (en) A kind of power-supply system
CN207320876U (en) A kind of charging circuit and charger
CN104065125B (en) A kind of charging system of electronic product
CN206908342U (en) USB TYPE C interface charging circuits
CN106992668B (en) A kind of alternating current-direct current Mixed design DC power supply
CN206181321U (en) Bluetooth headset and battery power indicating circuit thereof
CN107942125A (en) In-built electrical pool electronic product uses electrical test circuit and its control method
CN207977724U (en) A kind of fire-fighting two lines bus short-circuit protection circuit of hand-held encoder
CN206673631U (en) A kind of battery charger
CN110289661A (en) The power-supplying circuit of underwater electronic device battery
CN206650592U (en) Power circuit for electric energy meter
CN106329963B (en) A kind of power supply bridge-type switching device
CN104967170B (en) Mobile power
CN107295279A (en) A kind of television set of low power standby
CN203932584U (en) A kind of multifunctional integrated socket
CN203589772U (en) Double-USB charging circuit and charger
CN206237186U (en) Electronic cigarette and its power supply architecture
CN103001285A (en) Miniature direct-current power management module
CN209134063U (en) One power circuit of multiselect and power supervisor for low-power dissipation system with priority
CN207098713U (en) A kind of portable power source with fast charge function
CN107070259A (en) Power circuit for electric energy meter
CN107874319A (en) Electronic cigarette and its power supply architecture
CN207166631U (en) A kind of television set of low power standby
CN206640336U (en) A kind of electronic equipment
CN206575183U (en) Multifunctional portable power source

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant