CN204696917U - A kind of non-isolation type vehicle power transducer - Google Patents
A kind of non-isolation type vehicle power transducer Download PDFInfo
- Publication number
- CN204696917U CN204696917U CN201520442732.6U CN201520442732U CN204696917U CN 204696917 U CN204696917 U CN 204696917U CN 201520442732 U CN201520442732 U CN 201520442732U CN 204696917 U CN204696917 U CN 204696917U
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Abstract
The utility model discloses a kind of non-isolation type vehicle power transducer, comprise chip U1, resistance R1, resistance R3 and metal-oxide-semiconductor Q1, one end of described resistance R1 connects power supply VCC, other end contact resistance R2, the resistance R3 of resistance R1, the pin 2 of electric capacity C3 and chip U1, the other end of resistance R3 connects the other end of electric capacity C3 and the pin 1 also ground connection of chip U1.The utility model vehicle power transducer has abandoned complicated expense transformer device structure, use DC-DC dedicated convert chip UC3843 as control module, by the break-make controlling metal-oxide-semiconductor, the back electromotive force in inductance is added in input voltage, reach the object of boosting, therefore circuit has the advantage that structure is simple, control is accurate, cost of manufacture is low.
Description
Technical field
The utility model relates to a kind of power circuit, specifically a kind of non-isolation type vehicle power transducer.
Background technology
Along with expanding economy, automobile has progressed into a lot of family, automotive interior is all with generator, the electricity consumptions such as the illumination of automobile itself, air-conditioning can be supplied, but for external electric equipment, often cannot use because of the situation of undertension, therefore need to use increasing apparatus, most of increasing apparatus all uses isolating transformer in the market, and not only volume is large, cost is high, and energy consumption is high.
Utility model content
The purpose of this utility model is to provide a kind of non-isolation type vehicle power transducer, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of non-isolation type vehicle power transducer, comprise chip U1, resistance R1, resistance R3 and metal-oxide-semiconductor Q1, one end of described resistance R1 connects power supply VCC, the other end contact resistance R2 of resistance R1, resistance R3, the pin 2 of electric capacity C3 and chip U1, the other end of resistance R3 connects the other end of electric capacity C3 and the pin 1 also ground connection of chip U1, the other end of resistance R2 connects electric capacity C1, electric capacity C2, electric capacity C4, electric capacity C5, electric capacity C6, resistance R6, the negative electrode of diode D2 and the pin 5 of chip U1 also ground connection, the other end contact resistance R4 of electric capacity C1 and the pin 8 of chip U1, the other end of resistance R4 connects the other end of electric capacity C2 and the pin 4 of chip U1, the pin 3 contact resistance R7 of chip U1 and the other end of electric capacity C4, the pin 7 of chip U1 connects power supply VCC, the pin 6 of chip U1 connects negative electrode and the resistance R5 of diode D1, the anode contact resistance R5 of diode D1 and the grid of metal-oxide-semiconductor Q1, the other end of source electrode contact resistance R6 of metal-oxide-semiconductor Q1 and the other end of resistance R7, the drain electrode of metal-oxide-semiconductor Q1 connects inductance L 1, the other end of inductance L 2 and electric capacity C5, the other end of inductance L 1 connects power supply VCC, the other end of inductance L 2 connects the other end and the load RL of electric capacity C6, the other end of load RL connects the anode of diode D2.
As preferred version of the present utility model: the model of described chip U1 is UC3843.
As preferred version of the present utility model: described diode D2 is light-emitting diode.
Compared with prior art, the beneficial effects of the utility model are: the utility model vehicle power transducer has abandoned complicated expense transformer device structure, use DC-DC dedicated convert chip UC3843 as control module, by the break-make controlling metal-oxide-semiconductor, the back electromotive force in inductance is added in input voltage, reach the object of boosting, therefore circuit has the advantage that structure is simple, control is accurate, cost of manufacture is low.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of non-isolation type vehicle power transducer.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, a kind of non-isolation type vehicle power transducer, comprise chip U1, resistance R1, resistance R3 and metal-oxide-semiconductor Q1, one end of described resistance R1 connects power supply VCC, the other end contact resistance R2 of resistance R1, resistance R3, the pin 2 of electric capacity C3 and chip U1, the other end of resistance R3 connects the other end of electric capacity C3 and the pin 1 also ground connection of chip U1, the other end of resistance R2 connects electric capacity C1, electric capacity C2, electric capacity C4, electric capacity C5, electric capacity C6, resistance R6, the negative electrode of diode D2 and the pin 5 of chip U1 also ground connection, the other end contact resistance R4 of electric capacity C1 and the pin 8 of chip U1, the other end of resistance R4 connects the other end of electric capacity C2 and the pin 4 of chip U1, the pin 3 contact resistance R7 of chip U1 and the other end of electric capacity C4, the pin 7 of chip U1 connects power supply VCC, the pin 6 of chip U1 connects negative electrode and the resistance R5 of diode D1, the anode contact resistance R5 of diode D1 and the grid of metal-oxide-semiconductor Q1, the other end of source electrode contact resistance R6 of metal-oxide-semiconductor Q1 and the other end of resistance R7, the drain electrode of metal-oxide-semiconductor Q1 connects inductance L 1, the other end of inductance L 2 and electric capacity C5, the other end of inductance L 1 connects power supply VCC, the other end of inductance L 2 connects the other end and the load RL of electric capacity C6, the other end of load RL connects the anode of diode D2.
The model of chip U1 is UC3843.Diode D2 is light-emitting diode.
Operation principle of the present utility model is: this circuit belongs to booster type voltage stabilizing circuit, and adopt UC3843 as control chip, 10.5 ~ 15V DC input voitage can be converted to direct current 19V, maximum output current is about 3A, and efficiency is about 82% ~ 87%.The Push And Release of the Pulse Width Control switching tube Q1 that circuit is exported by 6 pin of chip U1, is added to the back electromotive force that inductance L 1 produces in input, output voltage is raised.Again by the adjustment of chip U1 duty ratio, obtain required stable 19V output voltage.The operating frequency of UC3843 is determined by the RC numerical value that its 4 pin is external, and the numerical value of output voltage is then determined by the resistance of the external divider resistance of its 2 pin, by changing the size of resistance, just can obtain required voltage within the specific limits.
Claims (3)
1. a non-isolation type vehicle power transducer, comprises chip U1, resistance R1, resistance R3 and metal-oxide-semiconductor Q1, it is characterized in that, one end of described resistance R1 connects power supply VCC, the other end contact resistance R2 of resistance R1, resistance R3, the pin 2 of electric capacity C3 and chip U1, the other end of resistance R3 connects the other end of electric capacity C3 and the pin 1 also ground connection of chip U1, the other end of resistance R2 connects electric capacity C1, electric capacity C2, electric capacity C4, electric capacity C5, electric capacity C6, resistance R6, the negative electrode of diode D2 and the pin 5 of chip U1 also ground connection, the other end contact resistance R4 of electric capacity C1 and the pin 8 of chip U1, the other end of resistance R4 connects the other end of electric capacity C2 and the pin 4 of chip U1, the pin 3 contact resistance R7 of chip U1 and the other end of electric capacity C4, the pin 7 of chip U1 connects power supply VCC, the pin 6 of chip U1 connects negative electrode and the resistance R5 of diode D1, the anode contact resistance R5 of diode D1 and the grid of metal-oxide-semiconductor Q1, the other end of source electrode contact resistance R6 of metal-oxide-semiconductor Q1 and the other end of resistance R7, the drain electrode of metal-oxide-semiconductor Q1 connects inductance L 1, the other end of inductance L 2 and electric capacity C5, the other end of inductance L 1 connects power supply VCC, the other end of inductance L 2 connects the other end and the load RL of electric capacity C6, the other end of load RL connects the anode of diode D2.
2. a kind of non-isolation type vehicle power transducer according to claim 1, is characterized in that, the model of described chip U1 is UC3843.
3. a kind of non-isolation type vehicle power transducer according to claim 1, it is characterized in that, described diode D2 is light-emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520442732.6U CN204696917U (en) | 2015-06-20 | 2015-06-20 | A kind of non-isolation type vehicle power transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520442732.6U CN204696917U (en) | 2015-06-20 | 2015-06-20 | A kind of non-isolation type vehicle power transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204696917U true CN204696917U (en) | 2015-10-07 |
Family
ID=54237166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520442732.6U Expired - Fee Related CN204696917U (en) | 2015-06-20 | 2015-06-20 | A kind of non-isolation type vehicle power transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204696917U (en) |
-
2015
- 2015-06-20 CN CN201520442732.6U patent/CN204696917U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20151007 Termination date: 20160620 |