CN206727649U - A kind of surge suppressing device - Google Patents
A kind of surge suppressing device Download PDFInfo
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- CN206727649U CN206727649U CN201720587688.7U CN201720587688U CN206727649U CN 206727649 U CN206727649 U CN 206727649U CN 201720587688 U CN201720587688 U CN 201720587688U CN 206727649 U CN206727649 U CN 206727649U
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Abstract
The utility model discloses a kind of surge suppressing device, including chip U1, resistance R1, resistance R2, diode D1 and triode Q1, the pin 8 of the chip U1 connects 3.6V direct currents, chip U1 pin 6 connects resistance R1 and diode D1 negative electrode, chip U1 pin 5 connects resistance R2, resistance R3 and potentiometer VR1, the resistance R1 other end connection resistance R2 other end and 42V direct currents, chip U1 pin 7 connects resistance R4, the resistance R4 other end connecting triode Q1 base stage and resistance R5.The utility model effectively suppresses power supply output without surge voltage, is run in the range of test product power surge.And simulate in equivalent supporting lithium battery group or battery charging absorbing state.
Description
Technical field
The present invention relates to a kind of electric device, specifically a kind of surge suppressing device.
Background technology
Known to have a variety of Conventional tunable switch DC power supplys in the market, conventional electrical formula drop is respectively adopted in wherein circuit
Press voltage regulation filtering output.
Coupled herein by external "+" "-" lead-out terminal mode.
But this traditional rearrangeable switch power supply can only unidirectional output voltage mode, when inductive load is tested, just
Occur that voltage is counter to fill（Such as：The inductive loads such as swing car, balance car, wheelbarrow, scooter, electric bicycle）, such as:Normally
Switch to kinetic energy when inductive load motor rotates forward to consume dc source.Once inverting moment, inductive load motor both ends are with kinetic energy
Mode switchs to electricity and flowed toward (dc source) direction.Because Conventional tunable dc source is that unidirectional power supply exports, the electricity of bounce-back
Stream can not discharge and absorb, and cause voltage superposition to set voltage far above former, the voltage of superposition typically exceeds primary voltage
50%, cause to damage test product.Or by the supporting lithium battery group of product, batteries, test product is powered,
It is not in superimposed voltage（Because battery can be equivalent into constant-current source, internal resistance is extremely low, when inductive load produce it is anti-fill voltage when along
Battery forms loop, is sponged with battery charged form）.But this mode is extremely dangerous, and can not be practical.So at present
Test inductive load equipment can only uniquely be taken traditional " adjustable switch DC power supply " on the market.
The content of the invention
It is an object of the invention to provide a kind of surge suppressing device to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides following technical scheme：
A kind of surge suppressing device, including chip U1, resistance R1, resistance R2, diode D1 and triode Q1, the chip
U1 pin 8 connects 3.6V direct currents, and chip U1 pin 6 connects resistance R1 and diode D1 negative electrode, chip U1 pin 5
Connect resistance R2, resistance R3 and potentiometer VR1, resistance the R1 other end connection resistance R2 other end and 42V direct currents, chip
U1 pin 7 connects resistance R4, the resistance R4 other end connecting triode Q1 base stage and resistance R5, triode Q1 colelctor electrode
Connect resistance R6 and resistance R7, resistance R6 other end connection 12V voltages and triode Q2 emitter stage, triode Q2 base stage
Connect the resistance R7 other end, triode Q2 colelctor electrode connection resistance R8, resistance R8 other end connection resistance R9 and metal-oxide-semiconductor
Q3 grid, metal-oxide-semiconductor Q3 source ground, metal-oxide-semiconductor Q3 drain electrode connection resistance R11 and diode D2 negative electrode, resistance R11's
The other end connects resistance R10, resistance R10 other end connection resistance R12, resistance R13, resistance R14, diode D5 negative electrode and
Diode D6 negative electrode, resistance R12 other end connection diode D2 anode, resistance R13 other end connection diode D3
Negative electrode and electric capacity C1, the resistance R14 other end connection diode D4 negative electrode and electric capacity C2, the model of the chip U1
LS9632。
As the further scheme of the present invention：The diode D2 is light emitting diode.
Compared with prior art, the beneficial effects of the invention are as follows：The effective power supply that suppresses of the invention is exported without surge voltage,
Run in the range of test product power surge.And simulate and absorbed in equivalent supporting lithium battery group or battery charging
State.
Brief description of the drawings
Fig. 1 is the block diagram of the present invention.
Fig. 2 is the circuit diagram of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Refer to Fig. 1-2, in the embodiment of the present invention, a kind of surge suppressing device, including chip U1, resistance R1, resistance R2,
Diode D1 and triode Q1, the chip U1 pin 8 connect 3.6V direct currents, chip U1 pin 6 connect resistance R1 and
Diode D1 negative electrode, chip U1 pin 5 connect resistance R2, resistance R3 and potentiometer VR1, resistance R1 other end connection electricity
The R2 other end and 42V direct currents is hindered, chip U1 pin 7 connects resistance R4, resistance R4 other end connecting triode Q1's
Base stage and resistance R5, triode Q1 colelctor electrode connection resistance R6 and resistance R7, resistance R6 other end connection 12V voltages and three
Pole pipe Q2 emitter stage, the triode Q2 base stage connection resistance R7 other end, triode Q2 colelctor electrode connection resistance R8, electricity
Hinder R8 other end connection resistance R9 and metal-oxide-semiconductor Q3 grid, metal-oxide-semiconductor Q3 source ground, metal-oxide-semiconductor Q3 drain electrode connection resistance
R11 and diode D2 negative electrode, resistance the R11 other end connection resistance R10, resistance R10 other end connection resistance R12, electricity
Hinder R13, resistance R14, diode D5 negative electrode and diode D6 negative electrode, resistance R12 other end connection diode D2 sun
Pole, the resistance R13 other end connection diode D3 negative electrode and electric capacity C1, resistance R14 other end connection diode D4 the moon
Pole and electric capacity C2, the model LS9632 of the chip U1.
Diode D2 is light emitting diode.
The present invention operation principle be：When the voltage on power bus " IN42 ", which is set, writes from memory to recognize value, suppress surge dress
Put and be failure to actuate, when beyond the voltage for setting acquiescence, detection circuit controls power MOS by benchmark comparison signal output level
Pipe, start and absorb release circuit, consume superimposed voltage in time, with stable in the value range of acquiescence, reach suppression protection and make
With.
U1 is comparator chip on the left of Fig. 2.Middle lower section Q3 is high-power driving metal-oxide-semiconductor, and R10/R11 is high-power absorption
Load.
Fig. 1 is conventionally test power supply, is tested inductive load product, and suppresses surge device part and view is applied in combination.
It can be seen from schematic diagram, adjustment VR1 or R3 parameters can carry out surge voltage on DC3.6V-220V power supplys and suppress Fig. 2
（The device is applied needs adjustment member parameter in high more than 100V voltages).
Claims (2)
1. a kind of surge suppressing device, including chip U1, resistance R1, resistance R2, diode D1 and triode Q1, its feature exist
In the pin 8 of the chip U1 connects 3.6V direct currents, and chip U1 pin 6 connects resistance R1 and diode D1 negative electrode, core
Piece U1 pin 5 connects resistance R2, resistance R3 and potentiometer VR1, resistance the R1 other end connection resistance R2 other end and 42V
Direct current, chip U1 pin 7 connect resistance R4, the resistance R4 other end connecting triode Q1 base stage and resistance R5, three poles
Pipe Q1 colelctor electrode connection resistance R6 and resistance R7, resistance R6 other end connection 12V voltages and triode Q2 emitter stage, three
The pole pipe Q2 base stage connection resistance R7 other end, triode Q2 colelctor electrode connection resistance R8, resistance R8 other end connection
Resistance R9 and metal-oxide-semiconductor Q3 grid, metal-oxide-semiconductor Q3 source ground, metal-oxide-semiconductor Q3 drain electrode connection resistance R11's and diode D2
Negative electrode, resistance the R11 other end connection resistance R10, resistance the R10 other end connect resistance R12, resistance R13, resistance R14, two
Pole pipe D5 negative electrode and diode D6 negative electrode, resistance R12 other end connection diode D2 anode, resistance R13's is another
End connection diode D3 negative electrode and electric capacity C1, the resistance R14 other end connection diode D4 negative electrode and electric capacity C2, the core
Piece U1 model LS9632.
2. a kind of surge suppressing device according to claim 1, it is characterised in that the diode D2 is light-emitting diodes
Pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720587688.7U CN206727649U (en) | 2017-05-25 | 2017-05-25 | A kind of surge suppressing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720587688.7U CN206727649U (en) | 2017-05-25 | 2017-05-25 | A kind of surge suppressing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206727649U true CN206727649U (en) | 2017-12-08 |
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ID=60511130
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720587688.7U Active CN206727649U (en) | 2017-05-25 | 2017-05-25 | A kind of surge suppressing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN206727649U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107248731A (en) * | 2017-05-24 | 2017-10-13 | 深圳市科创奇科技有限公司 | A kind of surge suppressing device |
-
2017
- 2017-05-25 CN CN201720587688.7U patent/CN206727649U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107248731A (en) * | 2017-05-24 | 2017-10-13 | 深圳市科创奇科技有限公司 | A kind of surge suppressing device |
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