CN204652541U - Band ups power car video recorder - Google Patents
Band ups power car video recorder Download PDFInfo
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- CN204652541U CN204652541U CN201520369266.3U CN201520369266U CN204652541U CN 204652541 U CN204652541 U CN 204652541U CN 201520369266 U CN201520369266 U CN 201520369266U CN 204652541 U CN204652541 U CN 204652541U
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Abstract
The utility model relates to band ups power car video recorder, and it comprises the first voltage changing module, the second voltage changing module, DVR main frame, LDO, diode D1, diode D2, diode D3, current-limiting resistance, multiple charging resistor and the multiple storage capacitor that are connected with vehicle power; Multiple charging resistor is sequentially connected in series formation first series arm, multiple energy storage capacitor in series connects, form the second series arm, one end of first series arm and one end of the second series arm are all connected between diode D2 and diode D3, the other end of the first series arm and the equal ground connection of the other end of the second series arm, each charging resistor and corresponding storage capacitor parallel connection, form one-to-one relationship to make charging resistor and storage capacitor.The ups power be made up of charging resistor and storage capacitor still can provide operating voltage for DVR main frame, DVR main frame is worked on 10-30 second, thus can continue recorded key data.
Description
Technical field
The utility model relates to car video recorder.
Background technology
Current car video recorder (DVR) is all powered by vehicle power, and vehicle power is once break down, and car video recorder just cannot work, and likely causes critical data cannot record.
Utility model content
The purpose of this utility model is to propose a kind of band ups power car video recorder, the problem that cannot work on after it can solve vehicle power power-off.
In order to achieve the above object, the technical scheme that adopts of the utility model is as follows:
Band ups power car video recorder, it comprises the first voltage changing module, the second voltage changing module, DVR main frame, LDO, diode D1, diode D2, diode D3, current-limiting resistance, multiple charging resistor and the multiple storage capacitor that are connected with vehicle power; First output of the first voltage changing module is connected with the power end of DVR main frame by diode D1, second output of the first voltage changing module is connected with the input of the second voltage changing module, the power end of the pick-up of DVR main frame is all connected with the output of the second voltage changing module with the input of the power end of camera and LDO, the output of LDO is connected with the power end of DVR main frame by current-limiting resistance, diode D3, diode D2 successively, the earth terminal ground connection of LDO; Multiple charging resistor is sequentially connected in series formation first series arm, multiple energy storage capacitor in series connects, form the second series arm, one end of first series arm and one end of the second series arm are all connected between diode D2 and diode D3, the other end of the first series arm and the equal ground connection of the other end of the second series arm, each charging resistor and corresponding storage capacitor parallel connection, and the quantity of charging resistor is equal with the quantity of storage capacitor, form one-to-one relationship to make charging resistor and storage capacitor.
Preferably, described storage capacitor is super capacitor.
Preferably, diode D1, diode D2 and diode D3 are Schottky diode.
The utility model has following beneficial effect:
After vehicle power breaks down power-off, what the ups power be made up of charging resistor and storage capacitor still can continue provides operating voltage for DVR main frame, to enable DVR main frame work on 10-30 second, thus can continue recorded key data.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the band ups power car video recorder of the utility model preferred embodiment.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the utility model is described further.
As shown in Figure 1, a kind of band ups power car video recorder, it comprise be connected with vehicle power the first voltage changing module, the second voltage changing module, DVR main frame, LDO (power management chip), diode D1, diode D2, diode D3, current-limiting resistance R6, multiple charging resistor and multiple storage capacitor.The quantity of the charging resistor of the present embodiment and the quantity of storage capacitor are 5, are respectively charging resistor R1-R5, storage capacitor C1-C5.
First output of the first voltage changing module is connected with the power end of DVR main frame by diode D1, second output of the first voltage changing module is connected with the input of the second voltage changing module, the power end of the pick-up of DVR main frame is all connected with the output of the second voltage changing module with the input of the power end of camera and LDO, the output of LDO is connected with the power end of DVR main frame by current-limiting resistance R6, diode D3, diode D2 successively, the earth terminal ground connection of LDO.5 charging resistor R1-R5 are sequentially connected in series formation first series arm, 5 storage capacitor C1-C5 are connected in series, form the second series arm, one end of first series arm and one end of the second series arm are all connected between diode D2 and diode D3, the other end of the first series arm and the equal ground connection of the other end of the second series arm, each charging resistor and corresponding storage capacitor parallel connection, form one-to-one relationship to make charging resistor and storage capacitor.
The storage capacitor of the present embodiment adopts super capacitor.
Diode D1, the diode D2 of the present embodiment and diode D3 are Schottky diode.
The use procedure of the present embodiment is as follows:
When vehicle power normally works, the voltage transitions that vehicle power exports by the first voltage changing module is the operating voltage of DVR main frame, is converted to the operating voltage of pick-up and camera by the second voltage changing module, and is charged to storage capacitor C1-C5 by LDO.When after vehicle power power-off, storage capacitor C1-C5 powers to DVR main frame, works on 10-30 second to make DVR main frame.
For a person skilled in the art, according to technical scheme described above and design, other various corresponding change and distortion can be made, and all these change and distortion all should belong within the protection range of the utility model claim.
Claims (3)
1. be with ups power car video recorder, it is characterized in that, comprise the first voltage changing module, the second voltage changing module, DVR main frame, LDO, diode D1, diode D2, diode D3, current-limiting resistance, multiple charging resistor and the multiple storage capacitor that are connected with vehicle power; First output of the first voltage changing module is connected with the power end of DVR main frame by diode D1, second output of the first voltage changing module is connected with the input of the second voltage changing module, the power end of the pick-up of DVR main frame is all connected with the output of the second voltage changing module with the input of the power end of camera and LDO, the output of LDO is connected with the power end of DVR main frame by current-limiting resistance, diode D3, diode D2 successively, the earth terminal ground connection of LDO; Multiple charging resistor is sequentially connected in series formation first series arm, multiple energy storage capacitor in series connects, form the second series arm, one end of first series arm and one end of the second series arm are all connected between diode D2 and diode D3, the other end of the first series arm and the equal ground connection of the other end of the second series arm, each charging resistor and corresponding storage capacitor parallel connection, and the quantity of charging resistor is equal with the quantity of storage capacitor, form one-to-one relationship to make charging resistor and storage capacitor.
2. band ups power car video recorder as claimed in claim 1, it is characterized in that, described storage capacitor is super capacitor.
3. band ups power car video recorder as claimed in claim 1, it is characterized in that, diode D1, diode D2 and diode D3 are Schottky diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520369266.3U CN204652541U (en) | 2015-06-01 | 2015-06-01 | Band ups power car video recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520369266.3U CN204652541U (en) | 2015-06-01 | 2015-06-01 | Band ups power car video recorder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204652541U true CN204652541U (en) | 2015-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520369266.3U Active CN204652541U (en) | 2015-06-01 | 2015-06-01 | Band ups power car video recorder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204652541U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111900791A (en) * | 2020-08-11 | 2020-11-06 | 上海道麒实业发展有限公司 | On-vehicle outage holding circuit |
-
2015
- 2015-06-01 CN CN201520369266.3U patent/CN204652541U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111900791A (en) * | 2020-08-11 | 2020-11-06 | 上海道麒实业发展有限公司 | On-vehicle outage holding circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |