CN207625276U - A kind of Voltag driving circuit and electronic equipment - Google Patents
A kind of Voltag driving circuit and electronic equipment Download PDFInfo
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- CN207625276U CN207625276U CN201721127281.2U CN201721127281U CN207625276U CN 207625276 U CN207625276 U CN 207625276U CN 201721127281 U CN201721127281 U CN 201721127281U CN 207625276 U CN207625276 U CN 207625276U
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Abstract
The utility model discloses a kind of Voltag driving circuits, have control signal input, voltage input end and voltage output end, and include first switch pipe, second switch pipe, first resistor and anti-overflow circuit module；The base stage of first switch pipe is connect with control signal input, and collector is connect by first resistor with voltage input end, emitter ground connection；The base stage of second switch pipe is connect with the collector of first switch pipe, and collector is connect with voltage input end, and emitter is connect with voltage output end；The input terminal of anti-overflow circuit module is connect with voltage output end, and output end is connect with the base stage of first switch pipe.When voltage output terminal shortcircuit, this Voltag driving circuit can automatically cut off the circuit between voltage input end and voltage output end, avoid causing switching tube to burn because electric current is excessive, to protect entire circuit product.Meanwhile the utility model embodiment also provides a kind of electronic equipment including above-mentioned Voltag driving circuit.
Description
Technical field
The utility model is related to electronic circuit fields, and in particular to Voltag driving circuit and electronic equipment.
Background technology
Conventional Voltag driving circuit is mainly made of first switch pipe, second switch pipe and first resistor, and described first
The base stage of switching tube is connect with control signal input, and the collector of the first switch pipe passes through the first resistor and voltage
Input terminal connects, the emitter ground connection of the first switch pipe；The base stage of the second switch pipe and the first switch pipe
Collector connects, and the collector of the second switch pipe is connect with voltage input end, emitter and the electricity of the second switch pipe
Press output end connection.The Voltag driving circuit is to control conducting or the pass of first switch pipe by controlling the high or low of signal
It closes, and then controls the on and off of second switch pipe, control voltage input end to reach voltage is delivered to voltage
The purpose of the on and off of the circuit of output end.But in conventional Voltag driving circuit, such as the voltage of TV mainboards drives
Dynamic circuit since electric current is excessive, can frequently result in switching tube and burn, can also be sent out when serious when short circuit occurs in voltage output end
It lights a fire calamity.
Utility model content
The technical problems to be solved in the utility model is to design a kind of Voltag driving circuit and electronic equipment, can worked as
When short circuit occurs in voltage output end, the circuit between voltage input end and voltage output end is automatically cut off, is avoided because of electric current mistake
Cause switching tube to burn greatly, protects entire circuit product, extend the service life of circuit product.
In order to solve the above technical problems, on the one hand the utility model embodiment provides a kind of Voltag driving circuit, it is described
Voltag driving circuit has control signal input, voltage input end and voltage output end, and the Voltag driving circuit includes
First switch pipe, second switch pipe, first resistor and anti-overflow circuit module；The base stage of the first switch pipe and the control
Signal input part connects, and the collector of the first switch pipe is connect by the first resistor with the voltage input end, institute
State the emitter ground connection of first switch pipe；The base stage of the second switch pipe is connect with the collector of the first switch pipe, institute
The collector for stating second switch pipe is connect with the voltage input end, emitter and the voltage output of the second switch pipe
End connection；The input terminal of the anti-overflow circuit module is connect with the voltage output end, the anti-overflow circuit module it is defeated
Outlet is connect with the base stage of the first switch pipe.
In a kind of optional embodiment, the input terminal of the anti-overflow circuit module includes that first input end and second are defeated
Enter end；The first input end is connect with the emitter of the second switch pipe, second input terminal and the voltage output
End connection；The anti-overflow circuit module includes the first triode, the second triode and second resistance；The first input end is logical
The second resistance is crossed to connect with second input terminal；The emitter of first triode connects with the first input end
It connects；The base stage of first triode is connect with second input terminal；The collector of first triode and described second
The base stage of triode connects；The collector of second triode is connect with the output end of the anti-overflow circuit module；It is described
The emitter of second triode is grounded.
In a kind of optional embodiment, the Voltag driving circuit further includes 3rd resistor, and the one of the 3rd resistor
End is connect with the collector of the first switch pipe, and the other end of the 3rd resistor and the base stage of the second switch pipe connect
It connects.
In a kind of optional embodiment, the Voltag driving circuit further includes the 4th resistance and the 5th resistance；Described
One end of four resistance is connect with the control signal input, the base of the other end and the first switch pipe of the 4th resistance
Pole connects；One end of 5th resistance is connect with the base stage of the first switch pipe, the other end ground connection of the 5th resistance.
In a kind of optional embodiment, the anti-overflow circuit module further includes the 6th resistance and the 7th resistance；It is described
One end of 6th resistance is connect with the base stage of second triode, the other end ground connection of the 6th resistance；7th electricity
One end of resistance is connect with the collector of first triode, the base of the other end and second triode of the 7th resistance
Pole connects.
In a kind of optional embodiment, the power of the second switch pipe is more than the first switch pipe, the one or three pole
The power of pipe and the second triode.
In a kind of optional embodiment, the first switch pipe is triode, and the second switch pipe is field-effect tube；
The base stage of the first switch pipe is the base stage of triode, the collector of the current collection extremely triode of the first switch pipe, institute
State the emitter of the transmitting extremely triode of first switch pipe；The base stage of the second switch pipe is the grid of field-effect tube, institute
State the source electrode of the current collection extremely field-effect tube of second switch pipe, the drain electrode of the transmitting extremely field-effect tube of the second switch pipe.
As a kind of variant embodiment, the first switch pipe and the second switch pipe are triode；Described
The base stage of one switching tube be triode base stage, the collector of the current collection extremely triode of the first switch pipe, described first
The emitter of the transmitting extremely triode of switching tube；The base stage of the second switch pipe is the base stage of triode, and described second opens
Close the emitter of the current collection extremely triode of pipe, the collector of the transmitting extremely triode of the second switch pipe.
In a kind of optional embodiment, the control signal input is for the drive screen signal output end with TV motherboard
Connection；The voltage output end with the feeder ear of tv display screen for connecting.
In order to solve identical technical problem, on the other hand the utility model embodiment provides a kind of electronic equipment, including
The Voltag driving circuit that one side face provides.
Compared with the prior art, the advantageous effect of the utility model embodiment is：The utility model embodiment provides
A kind of Voltag driving circuit, with control signal input, voltage input end and voltage output end, the voltage driving electricity
Road includes first switch pipe, second switch pipe, first resistor and anti-overflow circuit module；The base stage of the first switch pipe and institute
Control signal input connection is stated, the collector of the first switch pipe is connected by the first resistor and the voltage input end
It connects, the emitter ground connection of the first switch pipe；The base stage of the second switch pipe and the collector of the first switch pipe connect
It connects, the collector of the second switch pipe is connect with voltage input end, and the emitter and the voltage of the second switch pipe are defeated
Outlet connects；The input terminal of the anti-overflow circuit module is connect with the voltage output end, the anti-overflow circuit module
Output end is connect with the base stage of the first switch pipe.Through the above structure, the utility model can be brought out when voltage output
When existing short circuit, the circuit between voltage input end and voltage output end is automatically cut off, avoids causing to switch because electric current is excessive
Pipe is burnt, and protects entire circuit product, extends the service life of circuit product.Meanwhile the utility model embodiment also carries
For a kind of electronic equipment including above-mentioned Voltag driving circuit.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram for Voltag driving circuit that the utility model embodiment provides；
Fig. 2 is the structural representation that a kind of Voltag driving circuit that the utility model embodiment provides is applied in television set
Figure.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than all real
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Referring to Fig. 1, it is a kind of structural schematic diagram of Voltag driving circuit 1 of the utility model embodiment.This practicality
The Voltag driving circuit 1 of new embodiment has control signal input Control, voltage input end Vin and voltage output
Vout is held, the Voltag driving circuit includes first switch pipe Q1, second switch pipe Q2, first resistor R1 and anti-overflow circuit mould
Block 11；The base stage of the first switch pipe Q1 is connect with the control signal input Control, the first switch pipe Q1's
Collector is connect by the first resistor R1 with the voltage input end Vin, the emitter ground connection of the first switch pipe Q1；
The base stage of the second switch pipe Q2 is connect with the collector of the first switch pipe Q1, the collector of the second switch pipe Q2
It is connect with the voltage input end Vin, the emitter of the second switch pipe Q2 is connect with the voltage output end Vout；It is described
The input terminal of anti-overflow circuit module 11 is connect with the voltage output end Vout, the output end of the anti-overflow circuit module 11
It is connect with the base stage of the first switch pipe Q1.
In a kind of optional embodiment, the input terminal of the anti-overflow circuit module 11 includes first input end and
Two input terminals；The first input end is connect with the emitter of the second switch pipe Q2, second input terminal and the electricity
Press output end vo ut connections；The anti-overflow circuit module 11 includes the first triode Q3, the second triode Q4 and second resistance
R2；The first input end is connect by the second resistance R2 with second input terminal；The hair of the first triode Q3
Emitter-base bandgap grading is connect with the first input end；The base stage of the first triode Q3 is connect with second input terminal；Described first
The collector of triode Q3 is connect with the base stage of the second triode Q4；The collector of the second triode Q4 is prevented with described
The output end of overcurrent circuit module connects；The emitter of the second triode Q4 is grounded.
The operation principle of the utility model embodiment is：
When the control signal input Control is high level, when the voltage output end Vout is normal, pass through
The electric current of the anti-overflow circuit module 11 is less than protective current value, i.e., by the electric current of the second resistance R2 less than protection electricity
Flow valuve, the first triode Q3 are closed, and the second triode Q4 is closed, the first switch pipe Q1 conductings, described at this time
The Q2 conductings of second switch pipe, the voltage input end Vin convey voltage to the voltage output end Vout；When the voltage output
When Vout being held short circuit occur, if reaching protective current value by the electric current of the anti-overflow circuit module 11, that is, pass through described the
The electric current of two resistance R2 reaches protective current value, the first triode Q3 conductings, so that the second triode Q4 is led
Logical, to drag down the base voltage of the first switch pipe Q1, the first switch pipe Q1 is closed, so that described second
Switching tube Q2 is closed, and the circuit between the voltage input end Vin and the voltage output end Vout is cut off.
In the present embodiment, the first switch pipe Q1 is triode, and the second switch pipe Q2 is field-effect tube.It is described
The base stage of first switch pipe Q1 is the base stage of triode, the collector of the current collection extremely triode of the first switch pipe Q1, institute
State the emitter of the transmitting extremely triode of first switch pipe Q1；The base stage of the second switch pipe Q2 is the grid of field-effect tube
Pole, the source electrode of the current collection extremely field-effect tube of the second switch pipe Q2, the transmitting extremely field-effect of the second switch pipe Q2
The drain electrode of pipe.
As a kind of variant embodiment, the first switch pipe Q1 is triode, and the second switch pipe Q2 is three poles
Pipe.The base stage of the first switch pipe Q1 is the base stage of triode, the collection of the current collection extremely triode of the first switch pipe Q1
Electrode, the emitter of the transmitting extremely triode of the first switch pipe Q1；The base stage of the second switch pipe Q2 is triode
Base stage, the emitter of the current collection extremely triode of the second switch pipe Q2, the transmitting extremely three of the second switch pipe Q2
The collector of pole pipe.
In a kind of optional embodiment, the Voltag driving circuit 1 further includes 3rd resistor R3, the 3rd resistor
One end of R3 is connect with the collector of the first switch pipe Q1, the other end of the 3rd resistor R3 and the second switch pipe
The base stage of Q2 connects.
The 3rd resistor R3 adjusts the voltage output end for limiting the electric current for flowing through the first switch pipe Q1
The voltage rising edge time of Vout reduces the dash current of the second switch pipe Q2.
In a kind of optional embodiment, the Voltag driving circuit 1 further includes the 4th resistance R4 and the 5th resistance R5；
One end of the 4th resistance R4 is connect with the control signal input Control, the other end of the 4th resistance R4 with
The base stage of the first switch pipe Q1 connects；One end of the 5th resistance R5 is connect with the base stage of the first switch pipe Q1,
The other end of the 5th resistance R5 is grounded.
The 4th resistance R4 and the 5th resistance R5 is divided for current limliting, avoids the first switch pipe Q1 because more than specified
Power consumption and damage, protect the first switch pipe Q1.
In a kind of optional embodiment, the Voltag driving circuit 1 further includes the first capacitance C1, first capacitance
One end of C1 is connect with the voltage output end Vout, the other end ground connection of the first capacitance C1.
The first capacitance C1's act as filtering.
In a kind of optional embodiment, the anti-overflow circuit module 11 further includes the 6th resistance R6 and the 7th resistance
R7；One end of the 6th resistance R6 is connect with the base stage of the second triode Q4, another termination of the 6th resistance R6
Ground；One end of the 7th resistance R7 is connect with the collector of the first triode Q3, the other end of the 7th resistance R7
It is connect with the base stage of the second triode Q4.
The 6th resistance R6 and the 7th resistance R7 is divided for current limliting, avoids the second triode Q4 because more than specified
Power consumption and damage, protect the second triode Q4.
In a kind of optional embodiment, the power of the second switch pipe Q2 is more than the first switch pipe Q1, the
The power of one triode Q3 and the second triode Q4.
Meanwhile the utility model embodiment also provides a kind of electronic equipment, including above-mentioned Voltag driving circuit 1.Such as
Electronic equipment is television set.
Referring to Fig. 2, it, which is a kind of Voltag driving circuit 1 of the utility model embodiment, is applied to the structure in television set
Schematic diagram.The Voltag driving circuit 1 of the utility model embodiment has control signal input Control, voltage input end Vin
And voltage output end Vout, the Voltag driving circuit include first switch pipe Q1, second switch pipe Q2, first resistor R1 and
Anti-overflow circuit module 11；The base stage of the first switch pipe Q1 is connect with the control signal input Control, and described
The collector of one switching tube Q1 is connect by the first resistor R1 with the voltage input end Vin, the first switch pipe Q1
Emitter ground connection；The base stage of the second switch pipe Q2 is connect with the collector of the first switch pipe Q1, and described second opens
The collector for closing pipe Q2 is connect with the voltage input end Vin, emitter and the voltage output of the second switch pipe Q2
Hold Vout connections；The input terminal of the anti-overflow circuit module 11 is connect with the voltage output end Vout, the anti-overflow electricity
The output end of road module 11 is connect with the base stage of the first switch pipe Q1.
In a kind of optional embodiment, the input terminal of the anti-overflow circuit module 11 includes first input end and
Two input terminals；The first input end is connect with the emitter of the second switch pipe Q2, second input terminal and the electricity
Press output end vo ut connections；The anti-overflow circuit module 11 includes the first triode Q3, the second triode Q4 and second resistance
R2；The first input end is connect by the second resistance R2 with second input terminal；The hair of the first triode Q3
Emitter-base bandgap grading is connect with the first input end；The base stage of the first triode Q3 is connect with second input terminal；Described first
The collector of triode Q3 is connect with the base stage of the second triode Q4；The collector of the second triode Q4 is prevented with described
The output end of overcurrent circuit module connects；The emitter of the second triode Q4 is grounded.
In a kind of optional embodiment, the control signal input Control is for the drive screen with TV motherboard 2
Signal output end connects；The voltage output end Vout with the feeder ear of tv display screen 3 for connecting.
The operation principle of the utility model embodiment is：
It is when the drive screen signal output end output signal of the TV motherboard 2 makes the control signal input Control
When high level, when the voltage output end Vout is normal, by the electric current of the anti-overflow circuit module 11 less than protection electricity
Flow valuve is less than protective current value by the electric current of the second resistance R2, the first triode Q3 is closed, and the described 2nd 3
Pole pipe Q4 is closed, and the first switch pipe Q1 conductings, the second switch pipe Q2 conductings, the voltage input end Vin are defeated at this time
Power transmission is depressed into the voltage output end Vout, and tv display screen 3 is able to power and bright screen；When the voltage output end Vout occurs
When short-circuit, if reaching protective current value by the electric current of the anti-overflow circuit module 11, that is, pass through the second resistance R2's
Electric current reaches protective current value, the first triode Q3 conductings, so that the second triode Q4 is connected, to drag down
The base voltage of the first switch pipe Q1, the first switch pipe Q1 are closed, so that the second switch pipe Q2 is closed
It closes, the circuit between the voltage input end Vin and the voltage output end Vout is cut off, and tv display screen 3 cannot supply
Electricity and blank screen.
In the present embodiment, the first switch pipe Q1 is triode, and the second switch pipe Q2 is field-effect tube.It is described
The base stage of first switch pipe Q1 is the base stage of triode, the collector of the current collection extremely triode of the first switch pipe Q1, institute
State the emitter of the transmitting extremely triode of first switch pipe Q1；The base stage of the second switch pipe Q2 is the grid of field-effect tube
Pole, the source electrode of the current collection extremely field-effect tube of the second switch pipe Q2, the transmitting extremely field-effect of the second switch pipe Q2
The drain electrode of pipe.
As a kind of variant embodiment, the first switch pipe Q1 is triode, and the second switch pipe Q2 is three poles
Pipe.The base stage of the first switch pipe Q1 is the base stage of triode, the collection of the current collection extremely triode of the first switch pipe Q1
Electrode, the emitter of the transmitting extremely triode of the first switch pipe Q1；The base stage of the second switch pipe Q2 is triode
Base stage, the emitter of the current collection extremely triode of the second switch pipe Q2, the transmitting extremely three of the second switch pipe Q2
The collector of pole pipe.
In a kind of optional embodiment, the Voltag driving circuit 1 further includes 3rd resistor R3, the 3rd resistor
One end of R3 is connect with the collector of the first switch pipe Q1, the other end of the 3rd resistor R3 and the second switch pipe
The base stage of Q2 connects.
The 3rd resistor R3 adjusts the voltage output end for limiting the electric current for flowing through the first switch pipe Q1
The voltage rising edge time of Vout reduces the dash current of the second switch pipe Q2.
In a kind of optional embodiment, the Voltag driving circuit 1 further includes the 4th resistance R4 and the 5th resistance R5；
One end of the 4th resistance R4 is connect with the control signal input Control, the other end of the 4th resistance R4 with
The base stage of the first switch pipe Q1 connects；One end of the 5th resistance R5 is connect with the base stage of the first switch pipe Q1,
The other end of the 5th resistance R5 is grounded.
The 4th resistance R4 and the 5th resistance R5 is divided for current limliting, avoids the first switch pipe Q1 because more than specified
Power consumption and damage, protect the first switch pipe Q1.
In a kind of optional embodiment, the Voltag driving circuit 1 further includes the first capacitance C1, first capacitance
One end of C1 is connect with the voltage output end Vout, the other end ground connection of the first capacitance C1.
The first capacitance C1's act as filtering.
In a kind of optional embodiment, the anti-overflow circuit module 11 further includes the 6th resistance R6 and the 7th resistance
R7；One end of the 6th resistance R6 is connect with the base stage of the second triode Q4, another termination of the 6th resistance R6
Ground；One end of the 7th resistance R7 is connect with the collector of the first triode Q3, the other end of the 7th resistance R7
It is connect with the base stage of the second triode Q4.
The 6th resistance R6 and the 7th resistance R7 is divided for current limliting, avoids the second triode Q4 because more than specified
Power consumption and damage, protect the second triode Q4.
In a kind of optional embodiment, the power of the second switch pipe Q2 is more than the first switch pipe Q1, the
The power of one triode Q3 and the second triode Q4.
Compared with the prior art, the advantageous effect of the utility model embodiment is：The utility model embodiment provides
A kind of Voltag driving circuit, with control signal input Control, voltage input end Vin and voltage output end Vout,
The Voltag driving circuit includes first switch pipe Q1, second switch pipe Q2, first resistor R1 and anti-overflow circuit module 11；Institute
The base stage for stating first switch pipe Q1 is connect with the control signal input Control, the collector of the first switch pipe Q1
It is connect with the voltage input end Vin by the first resistor R1, the emitter ground connection of the first switch pipe Q1；Described
The base stage of two switching tube Q2 is connect with the collector of the first switch pipe Q1, the collector and voltage of the second switch pipe Q2
The emitter of input terminal Vin connections, the second switch pipe Q2 is connect with the voltage output end Vout；The anti-overflow circuit
The input terminal of module 11 is connect with the voltage output end Vout, the output end of the anti-overflow circuit module 11 and described first
The base stage of switching tube Q1 connects.Through the above structure, the utility model can be when voltage output end Vout appearance short circuits, will
Circuit between voltage input end Vin and voltage output end Vout is automatically cut off, and avoids causing switching tube to burn because electric current is excessive
It ruins, protects entire circuit product, extend the service life of circuit product.Meanwhile the utility model embodiment also provides one
Kind includes the electronic equipment of above-mentioned Voltag driving circuit.
It is preferred embodiments of the present invention above, it is noted that for those skilled in the art
For, without departing from the principle of this utility model, several improvements and modifications can also be made, these improvements and modifications
It is considered as the scope of protection of the utility model.
Claims (10)
1. a kind of Voltag driving circuit, which is characterized in that the Voltag driving circuit has control signal input, control source
End and voltage output end, the Voltag driving circuit include first switch pipe, second switch pipe, first resistor and anti-overflow electricity
Road module；The base stage of the first switch pipe is connect with the control signal input, and the collector of the first switch pipe is logical
It crosses the first resistor to connect with the voltage input end, the emitter ground connection of the first switch pipe；The second switch pipe
Base stage connect with the collector of the first switch pipe, the collector of the second switch pipe connects with the voltage input end
It connects, the emitter of the second switch pipe is connect with the voltage output end；The input terminal of the anti-overflow circuit module and institute
Voltage output end connection is stated, the output end of the anti-overflow circuit module is connect with the base stage of the first switch pipe.
2. Voltag driving circuit as described in claim 1, which is characterized in that the input terminal of the anti-overflow circuit module includes
First input end and the second input terminal；The first input end is connect with the emitter of the second switch pipe, and described second is defeated
Enter end to connect with the voltage output end；The anti-overflow circuit module includes the first triode, the second triode and the second electricity
Resistance；The first input end is connect by the second resistance with second input terminal；The emitter of first triode
It is connect with the first input end；The base stage of first triode is connect with second input terminal；First triode
Collector connect with the base stage of second triode；The collector of second triode and the anti-overflow circuit module
Output end connection；The emitter of second triode is grounded.
3. Voltag driving circuit as described in claim 1, which is characterized in that the Voltag driving circuit further includes third electricity
Resistance, one end of the 3rd resistor connect with the collector of the first switch pipe, the other end of the 3rd resistor with it is described
The base stage of second switch pipe connects.
4. Voltag driving circuit as described in claim 1, which is characterized in that the Voltag driving circuit further includes the 4th resistance
With the 5th resistance；One end of 4th resistance is connect with the control signal input, the other end of the 4th resistance with
The base stage of the first switch pipe connects；One end of 5th resistance is connect with the base stage of the first switch pipe, and described
The other end of five resistance is grounded.
5. Voltag driving circuit as claimed in claim 1 or 2, which is characterized in that the anti-overflow circuit module further includes
Six resistance and the 7th resistance；One end of 6th resistance is connect with the base stage of the second switch pipe, the 6th resistance
The other end is grounded；One end of 7th resistance is connect with the collector of the first switch pipe, the 7th resistance it is another
End is connect with the base stage of the first switch pipe.
6. Voltag driving circuit as described in claim 1, which is characterized in that the power of the second switch pipe is more than described the
The power of one switching tube, the first triode and the second triode.
7. Voltag driving circuit as described in claim 1, which is characterized in that the first switch pipe is triode, described the
Two switching tubes are field-effect tube.
8. Voltag driving circuit as described in claim 1, which is characterized in that the first switch pipe and the second switch pipe
It is triode.
9. Voltag driving circuit as described in claim 1, which is characterized in that the control signal input is used for and TV master
The drive screen signal output end of plate connects；The voltage output end with the feeder ear of tv display screen for connecting.
10. a kind of electronic equipment, which is characterized in that including such as claim 1~9 any one of them Voltag driving circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721127281.2U CN207625276U (en) | 2017-09-04 | 2017-09-04 | A kind of Voltag driving circuit and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721127281.2U CN207625276U (en) | 2017-09-04 | 2017-09-04 | A kind of Voltag driving circuit and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207625276U true CN207625276U (en) | 2018-07-17 |
Family
ID=62818118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721127281.2U Active CN207625276U (en) | 2017-09-04 | 2017-09-04 | A kind of Voltag driving circuit and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207625276U (en) |
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2017
- 2017-09-04 CN CN201721127281.2U patent/CN207625276U/en active Active
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