CN207853467U - A kind of automobile-used throw load protection circuit based on reverse-connection preventing circuit - Google Patents
A kind of automobile-used throw load protection circuit based on reverse-connection preventing circuit Download PDFInfo
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- CN207853467U CN207853467U CN201820146281.5U CN201820146281U CN207853467U CN 207853467 U CN207853467 U CN 207853467U CN 201820146281 U CN201820146281 U CN 201820146281U CN 207853467 U CN207853467 U CN 207853467U
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- reverse
- power supply
- automobile
- protection circuit
- throw load
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
Abstract
The utility model discloses a kind of automobile-used throw load protection circuit based on reverse-connection preventing circuit; for being protected to the electrical equipment being series on the main line of power supply, protection circuit includes unidirectional TVS pipe, for being connected when power supply just connects and being disconnected in power supply reversal connection first anti-reverse switch and the second anti-reverse switch；The utility model can meet throw load protection requirements and power supply reverse connection protection demand simultaneously, for reverse power connection, can be inhibited using the anti-reverse switch of negative power end increased second of power supply；Reverse power connection when starting for wire jumper, it can be protected by the anti-reverse switch of positive power source terminal increased first of power supply, and due to realizing power supply counnter attack, so unidirectional TVS pipe of the throw load protection using patch form, the occupancy to PCB space can be reduced, placement-and-routing is more convenient, improves power density；Reduce material originally, while patch production reduces plug-in unit technique, reduces production cost.
Description
Technical field
The utility model is related to automotive fields more particularly to a kind of automobile-used throw load based on reverse-connection preventing circuit to protect electricity
Road.
Background technology
Throw load test (5a pulse tests) is the electric property of current new-energy automobile electric-control system and electric components
Test one kind in (reference standard ISO 16750).Throw load pulse simulation is that mobile generator (is mainly to power supply
Low tension battery) when persistently charging, battery moment disconnects, and the relatively high power energy moment of generator output is superimposed upon equipment under test
Power port when the high-power disturbing pulse of transient state that is formed.In the different power-supply system of voltage class, the interference of the pulse
100V and 200V can be up to, rise time about 5ms, the duration is up to 400ms, the transient power up to kilowatt order of magnitude, 1 point
Left and right may be repeated 10 times in the time of clock.To inhibit the huge energy of throw load transient pulse, the protection side of current mainstream
Case is Transient Suppression Diode (Transient of the power port increase with larger instantaneous power in equipment under test
Voltage Suppressor, abbreviation TVS) it (is selected according to system power source voltage grade to carry out clamper to throw load pulse
TVS with suitable clamp voltage).
TVS pipe is divided to the unidirectional and two-way two-way TVS overwhelming majority two kinds, used on current market to be encapsulated for plug-in unit, and single
Then mainly patch is used to encapsulate to TVS.
Under normal conditions, throw load safeguard function can be met using unidirectional TVS, circuit is as shown in Figure 1.But
It is when the pulse of power cable error-polarity connection or generation is lasting negative pulse, unidirectional TVS is connected in powered on moment,
So that battery forms short circuit by conducting wire, TVS, the high current of moment can burn cable or TVS, and vehicle can be caused to rise when serious
Fire, this is also the reason of using unidirectional TVS less at present.
The reliability of product can be improved to avoid the above problem using two-way TVS, as shown in Fig. 2, to use two-way TVS
Circuit.But using two-way TVS, there are following defects：Plug-in unit encapsulates the patch automated production for being unfavorable for producing line；Meanwhile
In view of bending pins radius, plug-in unit, which is encapsulated on veneer, occupies larger mounting area, is unfavorable for veneer placement-and-routing, is unfavorable for
Improve product power density；And plug-in unit encapsulates so that veneer front and back can not all connect up.In addition, the two-way TVS device
It need to be placed on port, occupy larger veneer area, be unfavorable for EMC (Electro Magnetic Compatibility, electromagnetism
Compatibility) interface filter circuit layout designs, reduce circuit EMC performances.
In addition, continuing to refer to figure 1, it is contemplated that the cathode of automobile storage battery is directly connect with vehicle frame, and current numerous new
Equipment under test reference ground is directly connect with casing by energy parts in order to meet EMC standards, casing by be grounded again with vehicle
Frame connects bonding.External electrical is used when the power cable polarity of vehicle electronic device is by reversal connection, or in the serious power shortage of battery
When pond wire jumper starts and reversal connection occurs, the energy of battery can pass through vehicle frame, and equipment under test reference ground is formed back with low pressure wiring
Road (as shown by the arrows in Figure 1) causes on power cathode concatenated device to burn or the circuit board of electronic equipment internal cathode
Cabling is burned out, or by certain devices formed access, cause electronic device damage (equipment of damage have to replace
Can meet the requirements), reduce the robustness of equipment.
Utility model content
The technical problem to be solved by the present invention is to it is anti-to carry out throw load in the prior art using two-way TVS
It protects and carrys out troublesome defect to production, assembling, wiring tape, a kind of automobile-used throw load protection circuit based on reverse-connection preventing circuit is provided.
Technical solution adopted by the utility model to solve its technical problems is：Construct a kind of vehicle based on reverse-connection preventing circuit
With throw load protection circuit, for being protected to the electrical equipment being series on the main line of power supply, the protection circuit
First including unidirectional TVS pipe, for being connected when the power supply just connects and being disconnected in the power supply reversal connection is anti-
Reversal connection switchs and the second anti-reverse switch；Wherein：The unidirectional TVS pipe is connected in the power supply both ends in parallel, and described
For one anti-reverse switch between the positive power source terminal and the positive power source terminal of electrical equipment of the power supply, described second is anti-reverse
Switch meets in the following conditions at least between the negative power end and the negative power end of electrical equipment of the power supply
One：It is described first it is anti-reverse switch be also located between the positive power source terminal of the power supply and the cathode of the unidirectional TVS pipe,
The second anti-reverse switch is between the negative power end and the anode of the unidirectional TVS pipe of the power supply.
In the automobile-used throw load protection circuit described in the utility model based on reverse-connection preventing circuit, described first is anti-reverse
Switch is between the cathode and the positive power source terminal of the electrical equipment of the unidirectional TVS pipe, the second anti-reverse switch position
Between the negative power end and the anode of the unidirectional TVS pipe of the power supply.
In the automobile-used throw load protection circuit described in the utility model based on reverse-connection preventing circuit, described first is anti-reverse
Positioned at the cathode of the positive power source terminal and the unidirectional TVS pipe of the power supply, the second anti-reverse switch is located at single switch
To between the anode and the anode of the unidirectional TVS pipe of TVS.
In the automobile-used throw load protection circuit described in the utility model based on reverse-connection preventing circuit, described first is anti-reverse
Switch is diode.
In the automobile-used throw load protection circuit described in the utility model based on reverse-connection preventing circuit, described first is anti-reverse
Switch is TVS pipe.
In the automobile-used throw load protection circuit described in the utility model based on reverse-connection preventing circuit, described first is anti-reverse
Switch has been inverse parallel, and the metal-oxide-semiconductor of diode, the grid of metal-oxide-semiconductor connect the anode of the unidirectional TVS pipe by one drive circuit.
In the automobile-used throw load protection circuit described in the utility model based on reverse-connection preventing circuit, described second is anti-reverse
Switch has been inverse parallel, and the metal-oxide-semiconductor of diode, the grid of metal-oxide-semiconductor connect the cathode of the unidirectional TVS pipe by one drive circuit.
In the automobile-used throw load protection circuit described in the utility model based on reverse-connection preventing circuit, described second is anti-reverse
Switch is diode.
In the automobile-used throw load protection circuit described in the utility model based on reverse-connection preventing circuit, described second is anti-reverse
Switch is TVS pipe.
In the automobile-used throw load protection circuit described in the utility model based on reverse-connection preventing circuit, the protection circuit is also
Including the first capacitance and the second capacitance, first capacitance is in parallel with the unidirectional TVS pipe, second capacitance and the electricity consumption
Equipment is in parallel.
The automobile-used throw load protection circuit based on reverse-connection preventing circuit for implementing the utility model, has the advantages that：
The utility model can meet throw load protection requirements and power supply reverse connection protection demand simultaneously, for reverse power connection, can utilize and supply
The negative power end increased second of power supply is anti-reverse to be switched to be inhibited；Reverse power connection when starting for wire jumper can lead to
Cross the anti-reverse switch of positive power source terminal increased first of power supply to be protected, and due to realizing power supply counnter attack, no
The problem of with reverse power connection is worried, so unidirectional TVS pipe of the throw load protection using patch form, can be reduced to PCB skies
Between occupancy, placement-and-routing is more convenient, improve power density；Reduce material originally, while patch production reduces plug-in unit technique,
Production cost is reduced, and the unidirectional TVS pipe type selecting range of patch form is wider.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer：
Fig. 1 is the schematic diagram in reverse power connection using the automobile-used throw load protection circuit of unidirectional TVS；
Fig. 2 is the structural schematic diagram using the automobile-used throw load protection circuits of two-way TVS；
Fig. 3 is the structural schematic diagram of the embodiment one of the automobile-used throw load protection circuit of the utility model；
Fig. 4 is the structural schematic diagram of the embodiment two of the automobile-used throw load protection circuit of the utility model；
Fig. 5 is the structural schematic diagram of the embodiment three of the automobile-used throw load protection circuit of the utility model.
Specific implementation mode
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The exemplary embodiments of the utility model are given in attached drawing.But the utility model can in many different forms come in fact
It is existing, however it is not limited to embodiment described herein.Make public affairs to the utility model on the contrary, purpose of providing these embodiments is
It is more thorough and comprehensive to open content.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with the technology for belonging to the utility model
The normally understood meaning of technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.
The term comprising ordinal number such as " first " that is used in this specification, " second " can be used for illustrating various inscapes,
But these inscapes are not limited by these terms.It is only that using the purpose of these terms and distinguishes an inscape
In other inscapes.For example, under the premise of not departing from the interest field of the present invention, the first inscape can be named as the
Two inscapes, similarly, the second inscape can also be named as the first inscape.Term as used herein " and/
Or " include one or more relevant Listed Items any and all combinations.
The total thinking of the utility model is：It is added between the positive power source terminal of power supply and the positive power source terminal of electrical equipment
First anti-reverse switch, it is anti-reverse between the negative power end of the power supply and the negative power end of electrical equipment to add second
At least one of switch, and meet the following conditions：The first anti-reverse switch is also located at the positive supply of the power supply
It holds between the cathode of the unidirectional TVS pipe, negative power end and institute of the second anti-reverse switch positioned at the power supply
Between the anode for stating unidirectional TVS pipe.
Since the first anti-reverse switch, the second anti-reverse switch are connected when power supply just connects and break in reverse power connection
It opens, so the problem of there is no reverse power connections, therefore TVS pipe can choose the unidirectional TVS pipe of patch form, therefore this practicality
It is novel to meet throw load protection requirements and power supply reverse connection protection demand simultaneously, for reverse power connection, power supply can be utilized
The anti-reverse switch of negative power end increased second inhibited；Reverse power connection when starting for wire jumper can pass through power supply
The anti-reverse switch of positive power source terminal increased first of power supply is substituted in the prior art to be protected using unidirectional TVS pipe
Two-way TVS pipe, the occupancy to PCB space can be reduced, placement-and-routing is more convenient, improve power density；Reduce material originally, together
When patch production reduce plug-in unit technique, reduce production cost, and the unidirectional TVS pipe type selecting range of patch form is wider.
In order to better understand the above technical scheme, in conjunction with appended figures and specific embodiments to upper
It states technical solution to be described in detail, it should be understood that the specific features in the utility model embodiment and embodiment are to this
Apply for the detailed description of technical solution, rather than to the restriction of technical scheme, in the absence of conflict, this practicality
Technical characteristic in new embodiment and embodiment can be combined with each other.
Embodiment one
With reference to figure 3, the automobile-used throw load protection circuit that embodiment one provides, for being series at the dry of power supply 300
The load-carrying electrical equipment of road is protected, in the present embodiment, electrical equipment both ends shunt capacitance C2.Embodiment one provides
Automobile-used throw load protection circuit specifically include：
Unidirectional TVS pipe TVS1, is parallel to 300 both ends of the power supply, and unidirectional TVS pipe TVS1 chooses in the present embodiment
It is the unidirectional TVS pipe of patch form, and the both ends TVS pipe TVS1 shunt capacitance C1.
First anti-reverse switch 100, is series on the main line of the power supply 300, and positioned at the TVS pipe TVS1's
Between cathode and the positive power source terminal of electrical equipment.In the present embodiment, the first anti-reverse switch 100 is diode D1, specifically
The anode of diode D1 connect the cathode of TVS1 and the positive power source terminal of power supply 300 simultaneously, the cathode of diode D1 connects
Connect the positive power source terminal of electrical equipment.
Second anti-reverse switch 200, is series on the main line of the power supply 300, and positioned at the TVS pipe TVS1's
Between anode and the negative power end of power supply 300.In the present embodiment, the second anti-reverse switch is inverse parallel diode
N-channel metal-oxide-semiconductor Q1.The source electrode of metal-oxide-semiconductor Q1 connects the anode of TVS1 and the negative power end of electrical equipment simultaneously, and drain electrode connects
Connect the negative power end of power supply 300.
Driving circuit 400, driving circuit 400 are connected between the grid of metal-oxide-semiconductor Q1 and the cathode of TVS1, are driven for exporting
Dynamic voltage gives metal-oxide-semiconductor Q1.The reduction voltage circuits such as dropping resistor may be used in driving circuit 400, can also omit the circuit.
The operation principle of the present embodiment is：When power supply 300 just connects, diode D1 and metal-oxide-semiconductor Q1 conductings (power on wink
Between, the anti-paralleled diode of Q1 is connected, after the conducting of Q1 raceway grooves controlled by driving circuit 400, driving circuit can utilize power supply
The positive pressure LV+ that the positive power source terminal of power supply 300 exports provides positive pressure to Q1 grids and realizes driving Q1 conductings), due to the conducting ditch of Q1
Road can meet larger electric current and pass through, therefore when carrying out throw load test, since system has been completed to power on, throw load arteries and veins
Punching be added to after power port, TVS1 avalanche breakdowns, by interference voltage spike clamper, electric current larger at this time flow through TVS1 and
The raceway groove of metal-oxide-semiconductor Q1 can cause switching device to damage as shown in dotted line with the arrow in Fig. 3 to avoid transient high-current.Work as confession
When 300 reversal connection of power supply, diode D1 and metal-oxide-semiconductor Q1 are turned off, therefore may be implemented anti-reverse.
Embodiment two
With reference to figure 4, it is with the difference of embodiment one, it is anti-that the first anti-reverse switch 100, second is had modified in embodiment two
The position of reversal connection switch 200.Specifically：
First anti-reverse switch 100, is series on the main line of the power supply 300, and the cathode positioned at TVS1 and confession
Between the positive power source terminal of power supply 300.That is, the positive power source terminal of the anode connection power supply 300 of diode D1, diode D1's
Cathode connects the cathode of TVS1 and the positive power source terminal of electrical equipment simultaneously.
Second anti-reverse switch 200, is series on the main line of the power supply 300, and positioned at the anode and use of TVS1
Between the negative power end of electric equipment.That is the negative power end of the source electrode connection electrical equipment of metal-oxide-semiconductor Q1, the anode of drain electrode connection TVS1
And the negative power end of power supply 300.
When carrying out throw load test, diode D1 connects with TVS1, and when generating throw load pulse, diode D1 is being powered on
When it is open-minded, TVS1 is reversed breakdown and is operated in clamping state, and protection late-class circuit is not in overvoltage damage, ensures electricity
Road meets throw load test.But embodiment two is compared with embodiment one, the disadvantage is that diode D1 may need selection have compared with
The device of big transient current ability to bear, may increase the cost of the material, may be slightly inferior in totally this effect of drop
In embodiment one.
Embodiment three
With reference to figure 5, embodiment three and the difference of embodiment two are, the diode D1 in embodiment two is replaced with TVS
The defensive unidirectional TVS pipes of 5a may be used in pipe TVS2, TVS2.
Since TVS also has unilateral conduction possessed by diode, so under normal wiring condition, TVS1 is normally led
Logical, circuit works normally, and circuit anti-reflection function is unaffected；When circuit is there are when throw load interference, TVS1 and TVS2 connect work
Making, TVS1 is operated in reverse breakdown state, clamper interference voltage, since TVS1 can resist transient pulse interfering energy,
The needs of when TVS2 of same model can also meet throw load operating mode.Compared with embodiment two, embodiment three is that may be present
Problem is that the cost of TVS2 may be more of high cost than common diode D1.
Furthermore it is also possible to the first anti-reverse switch 100 is arranged using the position of embodiment two, the second anti-reverse switch
200 are arranged using the position of embodiment one, and anti-reverse effect equally may be implemented, and may be implemented to use unidirectional TVS1 clampers
Effect, although three above embodiment may may be less than, also in the protection model of the utility model on overall effect
Within enclosing.
It is understood that can also the switching devices such as metal-oxide-semiconductor, metal-oxide-semiconductor be replaced with the diode D1 of above example
Grid the anode of TVS1 can be connected by driving circuit, metal-oxide-semiconductor Q1 can also theoretically use diode or TVS pipe replace
It changes, these are all the simple deformations for belonging to the embodiments of the present invention, are fallen within the scope of protection of the utility model.
In conclusion implementing the automobile-used throw load protection circuit based on reverse-connection preventing circuit of the utility model, have following
Advantageous effect：The utility model can meet throw load protection requirements and power supply reverse connection protection demand simultaneously can for reverse power connection
To be inhibited using the anti-reverse switch of the negative power end of power supply increased second；Power supply when starting for wire jumper is anti-
It connects, can be protected by the anti-reverse switch of positive power source terminal increased first of power supply, and due to realizing power supply
Counnter attack, the problem of not having to worry reverse power connection, so throw load protection can be reduced using the unidirectional TVS pipe of patch form
To the occupancy of PCB space, placement-and-routing is more convenient, improves power density；Reduce material this, while patch production reduce it is slotting
Part technique reduces production cost, and the unidirectional TVS pipe type selecting range of patch form is wider.
The embodiments of the present invention are described above in conjunction with attached drawing, but the utility model is not limited to
The specific implementation mode stated, the above mentioned embodiment is only schematical, rather than restrictive, this field it is common
Technical staff is not departing from the utility model aims and scope of the claimed protection situation under the enlightenment of the utility model
Under, many forms can be also made, these are belonged within the protection of the utility model.
Claims (10)
1. a kind of automobile-used throw load protection circuit based on reverse-connection preventing circuit, for the use to being series on the main line of power supply
Electric equipment is protected, which is characterized in that the protection circuit includes unidirectional TVS pipe, for when the power supply just connects
Conducting and the first anti-reverse switch disconnected in the power supply reversal connection and the second anti-reverse switch；Wherein：It is described unidirectional
TVS pipe is connected in the power supply both ends, positive power source terminal of the first anti-reverse switch positioned at the power supply in parallel
Between the positive power source terminal of electrical equipment, the second anti-reverse switch is set positioned at the negative power end of the power supply and electricity consumption
At least one of between standby negative power end, and meet the following conditions：The first anti-reverse switch is also located at the power supply
Between the positive power source terminal of power supply and the cathode of the unidirectional TVS pipe, the second anti-reverse switch is positioned at the power supply
Between negative power end and the anode of the unidirectional TVS pipe.
2. the automobile-used throw load protection circuit according to claim 1 based on reverse-connection preventing circuit, which is characterized in that described
One anti-reverse switch is between the cathode and the positive power source terminal of the electrical equipment of the unidirectional TVS pipe, second counnter attack
Switch is connect between the negative power end and the anode of the unidirectional TVS pipe of the power supply.
3. the automobile-used throw load protection circuit according to claim 1 based on reverse-connection preventing circuit, which is characterized in that described
The cathode of positive power source terminal and the unidirectional TVS pipe of the one anti-reverse switch positioned at the power supply, described second anti-reverse opens
Off-position is between the anode and the anode of the unidirectional TVS pipe of unidirectional TVS.
4. the automobile-used throw load protection circuit according to claim 1 based on reverse-connection preventing circuit, which is characterized in that described
One anti-reverse switch is diode.
5. the automobile-used throw load protection circuit according to claim 1 based on reverse-connection preventing circuit, which is characterized in that described
One anti-reverse switch is TVS pipe.
6. the automobile-used throw load protection circuit according to claim 1 based on reverse-connection preventing circuit, which is characterized in that described
One anti-reverse switch has been inverse parallel, and the metal-oxide-semiconductor of diode, the grid of metal-oxide-semiconductor connect the unidirectional TVS by one drive circuit
The anode of pipe.
7. the automobile-used throw load protection circuit according to claim 1 based on reverse-connection preventing circuit, which is characterized in that described
Two anti-reverse switches have been inverse parallel, and the metal-oxide-semiconductor of diode, the grid of metal-oxide-semiconductor connect the unidirectional TVS by one drive circuit
The cathode of pipe.
8. the automobile-used throw load protection circuit according to claim 1 based on reverse-connection preventing circuit, which is characterized in that described
Two anti-reverse switches are diode.
9. the automobile-used throw load protection circuit according to claim 1 based on reverse-connection preventing circuit, which is characterized in that described
Two anti-reverse switches are TVS pipe.
10. the automobile-used throw load protection circuit according to claim 1 based on reverse-connection preventing circuit, which is characterized in that described
Protection circuit further includes the first capacitance and the second capacitance, and first capacitance is in parallel with the unidirectional TVS pipe, second capacitance
It is in parallel with the electrical equipment.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820146281.5U CN207853467U (en) | 2018-01-29 | 2018-01-29 | A kind of automobile-used throw load protection circuit based on reverse-connection preventing circuit |
| PCT/CN2018/115037 WO2019144676A1 (en) | 2018-01-29 | 2018-11-12 | Anti-reverse-connection circuit-based load dump protection circuit for use in vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820146281.5U CN207853467U (en) | 2018-01-29 | 2018-01-29 | A kind of automobile-used throw load protection circuit based on reverse-connection preventing circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207853467U true CN207853467U (en) | 2018-09-11 |
Family
ID=63413247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820146281.5U Active CN207853467U (en) | 2018-01-29 | 2018-01-29 | A kind of automobile-used throw load protection circuit based on reverse-connection preventing circuit |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN207853467U (en) |
| WO (1) | WO2019144676A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019144676A1 (en) * | 2018-01-29 | 2019-08-01 | 苏州汇川联合动力系统有限公司 | Anti-reverse-connection circuit-based load dump protection circuit for use in vehicle |
| CN115767836A (en) * | 2023-01-09 | 2023-03-07 | 深圳北极之光科技有限公司 | Lamp circuit |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102043386B (en) * | 2011-01-19 | 2012-06-06 | 中国重汽集团济南动力有限公司 | Digital heavy truck power output adjustment controller |
| JP5737124B2 (en) * | 2011-10-13 | 2015-06-17 | トヨタ紡織株式会社 | Power protection circuit |
| CN202363894U (en) * | 2011-11-11 | 2012-08-01 | 郑州宇通客车股份有限公司 | Automotive power protection circuit and power supply with transient voltage interference resistance function |
| CN103982306B (en) * | 2014-04-08 | 2016-06-08 | 潍柴动力股份有限公司 | The flame-out device of the electricity of diesel engine and circuit card Controlling System, method |
| CN207853467U (en) * | 2018-01-29 | 2018-09-11 | 苏州汇川联合动力系统有限公司 | A kind of automobile-used throw load protection circuit based on reverse-connection preventing circuit |
-
2018
- 2018-01-29 CN CN201820146281.5U patent/CN207853467U/en active Active
- 2018-11-12 WO PCT/CN2018/115037 patent/WO2019144676A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019144676A1 (en) * | 2018-01-29 | 2019-08-01 | 苏州汇川联合动力系统有限公司 | Anti-reverse-connection circuit-based load dump protection circuit for use in vehicle |
| CN115767836A (en) * | 2023-01-09 | 2023-03-07 | 深圳北极之光科技有限公司 | Lamp circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019144676A1 (en) | 2019-08-01 |
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Address after: 215000 52 tianedang Road, Yuexi, Wuzhong District, Suzhou City, Jiangsu Province Patentee after: Suzhou Huichuan United Power System Co.,Ltd. Address before: 215000 52 tianedang Road, Yuexi Town, Wuzhong District, Suzhou City, Jiangsu Province Patentee before: SUZHOU HUICHUAN UNITED POWER SYSTEM Co.,Ltd. |
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