CN207328334U - A kind of inter-vehicle information system power supply circuit - Google Patents
A kind of inter-vehicle information system power supply circuit Download PDFInfo
- Publication number
- CN207328334U CN207328334U CN201720545292.6U CN201720545292U CN207328334U CN 207328334 U CN207328334 U CN 207328334U CN 201720545292 U CN201720545292 U CN 201720545292U CN 207328334 U CN207328334 U CN 207328334U
- Authority
- CN
- China
- Prior art keywords
- resistance
- triode
- unidirectional thyristor
- inter
- vehicle information
- 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.)
- Expired - Fee Related
Links
Landscapes
- Control Of Electrical Variables (AREA)
Abstract
The utility model discloses a kind of inter-vehicle information system power supply circuit, including unidirectional thyristor Q1, switch S1, triode V1, triode V2 and capacitance C1, collector connection resistance R1, the anode of unidirectional thyristor Q1 and the anode of unidirectional thyristor Q2 of the triode V1, the other end connecting valve S1 of resistance R1, switchs the control pole of the other end connection unidirectional thyristor Q1 of S1.The utility model inter-vehicle information system power supply circuit has made improvement on common vehicular power-bottle output circuit; it passes through triode, the on state characteristic of unidirectional thyristor; with reference to capacitor charge and discharge principle; realize overcurrent protection and overvoltage protection; effectively ensure the electrical safety of inter-vehicle information system, therefore have the advantages that service life is long, control is accurate and vdiverse in function.
Description
Technical field
Automotive electronic technology is the utility model is related to, is specifically a kind of inter-vehicle information system power supply circuit.
Background technology
With the continuous progressive and high-tech rapid development of social economy, in routine work and life, automobile into
For the preferable vehicles of people, the owning amount of private car is also being continuously increased, and substantial amounts of automobile has brought many sides
Just, most automobiles are equipped with inter-vehicle information system now, it, which is integrated with, listens song amusement, FM radios, GPS satellite navigation
Deng various functions, inter-vehicle information system needs a stable power supply in the state of normal operation, avoids because vehicle-mounted power generation
Under-voltage, over-pressed power supply caused by the spread of voltage of machine and vehicular power-bottle, therefore the utility model proposes a kind of voltage constant
Power supply circuit.
Utility model content
The purpose of this utility model is to provide a kind of inter-vehicle information system power supply circuit, to solve in above-mentioned background technology
The problem of proposition.
To achieve the above object, the utility model provides following technical solution：
A kind of inter-vehicle information system power supply circuit, including unidirectional thyristor Q1, switch S1, triode V1, triode V2 and
Collector connection resistance R1, the anode of unidirectional thyristor Q1 and the anode of unidirectional thyristor Q2 of capacitance C1, the triode V1,
The other end connecting valve S1 of resistance R1, switchs the control pole of the other end connection unidirectional thyristor Q1 of S1, the resistance R1's
Resistance value is 10K Ω, and the cathode of unidirectional thyristor Q1 connects the base stage of resistance R4 and triode V1, the other end connection of resistance R4
Capacitance C2, the emitter of triode V1, the collector of triode V2, a fixing end of potentiometer RP1 and output voltage U1, it is single
It is the other end of cathode connection capacitance C2 from 2K Ω to thyristor Q2 and the resistance value of resistance R2, the resistance R2, resistance R2's is another
The capacitance of one end connection capacitance C1, resistance R5 and ground, capacitance C1 and capacitance C2 are 10 μ F, and the control pole of unidirectional thyristor Q3 connects
The resistance value of the other end and resistance R3, the resistance R3 that meet capacitance C1 is 15K Ω, and the resistance value of resistance R4 is 20K Ω, resistance R5's
Resistance value is 20K Ω, the emitter of the other end connecting triode V2 of resistance R3, the base stage connection potentiometer RP1's of triode V2
Sliding end, the other end of another fixing end connection resistance R5 of potentiometer RP1, the maximum value of the potentiometer RP1 is 20K
Ω。
Preferred solution as the utility model：The switch S1 is key switch.
Preferred solution as the utility model：The model of the triode V1 and triode V2 are 2N3904.
Preferred solution as the utility model：The model of the unidirectional thyristor Q1 and Q2 is 2N6565.
Preferred solution as the utility model：The power supply VCC is the DC voltage from vehicular power-bottle output.
Compared with prior art, the beneficial effects of the utility model are：The utility model inter-vehicle information system power supply circuit
Improvement is made on common vehicular power-bottle output circuit, it is by triode, the on state characteristic of unidirectional thyristor, with reference to electricity
Hold charge-discharge principle, realize overcurrent protection and overvoltage protection, effectively ensure the electrical safety of inter-vehicle information system, therefore have
There is the advantages of service life is long, control is accurate and vdiverse in function.
Brief description of the drawings
Fig. 1 is the circuit diagram of inter-vehicle information system power supply circuit.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
Referring to Fig. 1, a kind of inter-vehicle information system power supply circuit, including unidirectional thyristor Q1, switch S1, triode V1,
The collector of triode V2 and capacitance C1, the triode V1 connection resistance R1, the anode of unidirectional thyristor Q1 and unidirectional brilliant lock
The anode of pipe Q2, the other end connecting valve S1 of resistance R1, the other end for switching S1 connect the control pole of unidirectional thyristor Q1, institute
The resistance value for stating resistance R1 is 10K Ω, and the base stage of the cathode connection resistance R4 and triode V1 of unidirectional thyristor Q1, resistance R4's is another
One end connection capacitance C2, the emitter of triode V1, the collector of triode V2, a fixing end of potentiometer RP1 and output
The other end of cathode connection capacitance C2 and the resistance value of resistance R2, the resistance R2 of voltage U1, unidirectional thyristor Q2 are 2K Ω, electricity
The capacitance of other end connection capacitance C1, resistance R5 and the ground of resistance R2, capacitance C1 and capacitance C2 are 10 μ F, unidirectional thyristor Q3's
The other end of control pole connection capacitance C1 and the resistance value of resistance R3, the resistance R3 are 15K Ω, and the resistance value of resistance R4 is 20K Ω,
The resistance value of resistance R5 is 20K Ω, the emitter of the other end connecting triode V2 of resistance R3, the base stage connection current potential of triode V2
The sliding end of device RP1, the other end of another fixing end connection resistance R5 of potentiometer RP1, the maximum resistance of the potentiometer RP1
It is worth for 20K Ω.
Switch S1 is key switch.The model of triode V1 and triode V2 are 2N3904.Unidirectional thyristor Q1 and Q2
Model be 2N6565.Power supply VCC is the DC voltage from vehicular power-bottle output.
The operation principle of the utility model is：Unidirectional thyristor Q1, triode V1, resistance R4 composition overcurrent inspections in circuit
Protection circuit, Q2, V2, R2, C2 etc. original paper composition overvoltage detection protection circuit is surveyed, resistance R1 and switch S1 compositions start control electricity
Road, when loading normal, presses S1, and the control pole of unidirectional thyristor Q1 is triggered conducting, output voltage U1 powering loads, by
In over-current detection resistance R4 both end voltages be insufficient to allow triode V1 turn on, therefore load normal work, when because short circuit or other
When failure causes the load to aggravate, resistance R4 both ends pressure drops are increased, and when beyond the door line voltage of V1, V1 conductings, Q1 is small because of electric current
End in maintenance conducting electric current, and because V1 will flow through the current bypass of Q1 and resistance R4 when turning on, therefore Q1 ends, V1
Cut-off, cuts off power supply, so as to achieve the purpose that overcurrent protection.When the voltage of power supply VCC increases above over-pressed critical value
When, corresponding output voltage U1 can also be raised, the voltage rise after resistance R5 and potentiometer RP1 partial pressures, V2 conductings, Q2
Therefore turn on, the voltage at C2 both ends is added in the both ends of Q1 by Q2, Q1 is ended because obtaining backward voltage, cuts off the power
Load, after Q2 conductings, since resistance R2 resistance values are larger, the electric current flowed through is smaller, it is impossible to maintains the conducting of Q2, therefore Q2 is cut therewith
Only, circuit restPoses.
The utility model inter-vehicle information system power supply circuit has made improvement on common vehicular power-bottle output circuit, its
By triode, the on state characteristic of unidirectional thyristor, with reference to capacitor charge and discharge principle, overcurrent protection and overvoltage protection are realized,
Effectively ensure the electrical safety of inter-vehicle information system, therefore have the advantages that service life is long, control is accurate and vdiverse in function.
Claims (4)
1. a kind of inter-vehicle information system power supply circuit, including unidirectional thyristor Q1, switch S1, triode V1, triode V2 and electricity
Hold C1, it is characterised in that collector connection resistance R1, the anode and unidirectional thyristor of unidirectional thyristor Q1 of the triode V1
The anode of Q2, the other end connecting valve S1 of resistance R1, switchs the control pole of the other end connection unidirectional thyristor Q1 of S1, described
The resistance value of resistance R1 is 10K Ω, and the base stage of the cathode connection resistance R4 and triode V1 of unidirectional thyristor Q1, resistance R4's is another
End connection capacitance C2, the emitter of triode V1, the collector of triode V2, a fixing end of potentiometer RP1 and output electricity
Press U1, the other end of cathode connection capacitance C2 and the resistance value of resistance R2, the resistance R2 of unidirectional thyristor Q2 are 2K Ω, resistance
The capacitance of other end connection capacitance C1, resistance R5 and the ground of R2, capacitance C1 and capacitance C2 are 10 μ F, the control of unidirectional thyristor Q3
The other end of connection capacitance C1 in pole processed and the resistance value of resistance R3, the resistance R3 are 15K Ω, and the resistance value of resistance R4 is 20K Ω, electricity
The resistance value of resistance R5 be 20K Ω, the emitter of the other end connecting triode V2 of resistance R3, and the base stage of triode V2 connects potentiometer
The sliding end of RP1, the other end of another fixing end connection resistance R5 of potentiometer RP1, the maximum value of the potentiometer RP1
For 20K Ω.
2. a kind of inter-vehicle information system power supply circuit according to claim 1, it is characterised in that the switch S1 is button
Switch.
A kind of 3. inter-vehicle information system power supply circuit according to claim 1, it is characterised in that the triode V1 and three
The model of pole pipe V2 is 2N3904.
A kind of 4. inter-vehicle information system power supply circuit according to claim 1, it is characterised in that the unidirectional thyristor Q1
Model with Q2 is 2N6565.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720545292.6U CN207328334U (en) | 2017-05-05 | 2017-05-05 | A kind of inter-vehicle information system power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720545292.6U CN207328334U (en) | 2017-05-05 | 2017-05-05 | A kind of inter-vehicle information system power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207328334U true CN207328334U (en) | 2018-05-08 |
Family
ID=62376304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720545292.6U Expired - Fee Related CN207328334U (en) | 2017-05-05 | 2017-05-05 | A kind of inter-vehicle information system power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207328334U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112471596A (en) * | 2020-12-03 | 2021-03-12 | 王为平 | Electronic cigarette and electronic cigarette protection circuit |
-
2017
- 2017-05-05 CN CN201720545292.6U patent/CN207328334U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112471596A (en) * | 2020-12-03 | 2021-03-12 | 王为平 | Electronic cigarette and electronic cigarette protection circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204578058U (en) | A kind of vehicle-mounted high-voltage turn-off circuit | |
| CN207328334U (en) | A kind of inter-vehicle information system power supply circuit | |
| CN207652086U (en) | A kind of battery management system multichannel wake-up circuit | |
| CN204578061U (en) | A kind of novel on-vehicle high-voltage turn-off circuit | |
| CN100495859C (en) | An electric vehicle mixed power | |
| CN102931637A (en) | Power source protection circuit of vehicle-mounted electronic component | |
| CN105576820A (en) | Automatic switching controller of electromobile emergency battery | |
| CN216904278U (en) | BMS power automatic protection circuit | |
| CN107147071A (en) | A kind of power supply on vehicle short-circuit protection circuit | |
| RU2453960C1 (en) | Adaptive electronic switch of battery | |
| CN205355776U (en) | Short -circuit protection circuit based on power load is unusual | |
| CN105048407B (en) | A kind of anti-direct current backflow load protection circuit capable of delaying disconnection | |
| CN103414165A (en) | Storage battery discharge protection device | |
| CN206629306U (en) | Danger warning switch work pilot lamp scintillation device | |
| CN208158104U (en) | Vehicle-mounted charging power port protection circuit | |
| CN2935597Y (en) | Electric vehicle mixing power source | |
| CN110481466A (en) | The vehicle-mounted power supply circuit of anti-electric transient conduction | |
| CN206313426U (en) | A kind of short-circuit protector with warning function | |
| CN106059551A (en) | Speed switching circuit | |
| CN204761016U (en) | New energy automobile power battery's protection circuit | |
| CN103516028B (en) | Full outage electric vehicle charger | |
| CN203753338U (en) | Waterproof rotating handle control circuit of electric bicycle | |
| CN202947732U (en) | Automobile inclination alarm | |
| CN202978238U (en) | Automatic high- and low-voltage protection circuit for vehicular system | |
| CN219875155U (en) | Power supply circuit of battery management system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180508 Termination date: 20190505 |