CN203933416U - A kind of mobile DVD Switching Power Supply plate - Google Patents
A kind of mobile DVD Switching Power Supply plate Download PDFInfo
- Publication number
- CN203933416U CN203933416U CN201420105346.3U CN201420105346U CN203933416U CN 203933416 U CN203933416 U CN 203933416U CN 201420105346 U CN201420105346 U CN 201420105346U CN 203933416 U CN203933416 U CN 203933416U
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- CN
- China
- Prior art keywords
- circuit
- discharge
- discharge circuit
- storage battery
- power supply
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- 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
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a kind of mobile DVD Switching Power Supply plate, comprise EMI filter circuit, input rectifying filter circuit, inverse peak voltage absorbing circuit, PWM and drive circuit, voltage stabilizing circuit and output rectifier and filter, also comprise the charging circuit and the charge switch that are connected with input rectifying filter circuit, the storage battery being connected with charging circuit; And setting the first discharge circuit and the second discharge circuit that are connected with storage battery, the first discharge circuit is connected with a USB charging inlet, and the second discharge circuit is connected with inverse peak voltage absorbing circuit.The utility model is by arranging independently charging circuit, the first discharge circuit and the second discharge circuit and storage battery at mobile DVD Switching Power Supply plate, so, not only can to storage battery, carry out charge independence by charging circuit, there is energy storage function, and, can also power to outside electric equipment by the first discharge circuit, and the second discharge circuit powers to mobile DVD start, easy to use.
Description
Technical field
The utility model relates to electronic message unit, a kind of mobile DVD Switching Power Supply plate relating in particular to.
Background technology
Mobile DVD Switching Power Supply plate is mainly used in mobile DVD player, for example, and vehicle-mounted mobile DVD player, or portable DVD player etc.
In prior art, mobile DVD Switching Power Supply plate generally will provide power supply to power by civil power or other electric energy storage devices, by civil power or other Power supplies, cannot meet its portability.
Therefore, there is defect in prior art, needs to improve.
Utility model content
Technical problem to be solved in the utility model is: a kind of energy storage function that has is provided, not only can self-powered, and the mobile DVD Switching Power Supply plate that can also be other electric equipments as portable power source.
The technical solution of the utility model is as follows: a kind of mobile DVD Switching Power Supply plate, comprise EMI filter circuit, input rectifying filter circuit, inverse peak voltage absorbing circuit, PWM and drive circuit, voltage stabilizing circuit and output rectifier and filter, also comprise the charging circuit and the charge switch that are connected with described input rectifying filter circuit, and the storage battery being connected with described charging circuit; And, the first discharge circuit and the second discharge circuit being connected with described storage battery is also set, described the first discharge circuit is connected with a USB charging inlet, and described the second discharge circuit is connected with described inverse peak voltage absorbing circuit.
Be applied to technique scheme, in described mobile DVD Switching Power Supply plate, corresponding described the first discharge circuit and described the second discharge circuit, also arrange corresponding the first discharge switch and the second discharge switch.
Adopt such scheme, the utility model is by arranging independently charging circuit, the first discharge circuit and the second discharge circuit and storage battery at mobile DVD Switching Power Supply plate, so, not only can to storage battery, carry out charge independence by charging circuit, there is energy storage function, and, can also power to outside electric equipment by the first discharge circuit, and second discharge circuit power to mobile DVD start, easy to use.
Accompanying drawing explanation
Fig. 1 is connection diagram of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
The present embodiment provides a kind of mobile DVD Switching Power Supply plate, wherein, as shown in Figure 1, mobile DVD Switching Power Supply plate comprises EMI filter circuit, input rectifying filter circuit, inverse peak voltage absorbing circuit, PWM and drive circuit, voltage stabilizing circuit and output rectifier and filter, wherein EMI filter circuit is connected with mains electricity input end, after civil power input, first by EMI filter circuit, high-frequency signal interference signal is carried out to filtering, and then be converted to direct current by input rectifying filter rectification, then by inverse peak voltage absorbing circuit and PWM and drive circuit, process, and voltage stabilizing circuit feedback regulation and output rectifier and filter step-down, finally obtain the needed direct current of DVD player, for example, 90-240V alternating current is through ac input circuit, through the filtering of EMI filter circuit, and the rectification of input rectifying filter circuit is converted to 127-338V direct current, 127-338V direct current is processed through inverse peak voltage absorbing circuit, PWM and drive circuit, and voltage stabilizing circuit feedback regulation and output rectifier and filter step-down, finally obtain mobile DVD player needed+5V/+12V/-12V direct current.
And, the charging circuit and the charge switch that are connected with described input rectifying filter circuit are set, and the storage battery being connected with charging circuit, charge switch is arranged between charging circuit and input rectifying filter circuit, and when charge switch is opened, the electric current of input rectifying filter circuit charges to connected storage battery by charging circuit, so, can when not using mobile DVD player, can to storage battery, charge by charging circuit, storage of electrical energy is with standby.
And, the first discharge circuit and the second discharge circuit being connected is also set, wherein with storage battery, the first discharge circuit is connected with the USB charging inlet that DVD Switching Power Supply plate arranges, and so, can connect outside electric equipment by USB, by storage battery, charge to outside electrical equipment, for example, outside mobile phone, and, the second discharge circuit is connected with inverse peak voltage absorbing circuit, when inputting without civil power, storage battery discharges by the second discharge circuit, to offer mobile DVD player, uses.
Or, corresponding the first discharge circuit, the first corresponding discharge switch is also set, before the first discharge switch is arranged on the first discharge circuit and storage battery, by the first discharge switch, comes starting storage battery to discharge by the first discharge circuit, and, corresponding the second discharge circuit, also arranges the second corresponding discharge switch, so, by opening the second discharge switch, storage battery discharges by the second discharge circuit.
So, by independently charging circuit, storage battery, the first discharge circuit and the second discharge circuit are set in mobile DVD Switching Power Supply plate, make DVD Switching Power Supply plate there is storage of electrical energy function, while preparing against without civil power, use, and, by the first discharge circuit and second discharge circuit of independent setting, make storage battery have two kinds of different discharge modes, it not only can provide electric energy to use to oneself, can also be as portable power source, offer outside electric equipment and use, easy to use.
These are only preferred embodiment of the present utility model, be not limited to the utility model, all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (2)
1. a mobile DVD Switching Power Supply plate, comprises EMI filter circuit, input rectifying filter circuit, inverse peak voltage absorbing circuit, PWM and drive circuit, voltage stabilizing circuit and output rectifier and filter, it is characterized in that:
Also comprise the charging circuit and the charge switch that are connected with described input rectifying filter circuit, and the storage battery being connected with described charging circuit;
And, the first discharge circuit and the second discharge circuit being connected with described storage battery is also set, described the first discharge circuit is connected with a USB charging inlet, and described the second discharge circuit is connected with described inverse peak voltage absorbing circuit.
2. mobile DVD Switching Power Supply plate according to claim 1, is characterized in that, corresponding described the first discharge circuit and described the second discharge circuit also arrange corresponding the first discharge switch and the second discharge switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420105346.3U CN203933416U (en) | 2014-03-10 | 2014-03-10 | A kind of mobile DVD Switching Power Supply plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420105346.3U CN203933416U (en) | 2014-03-10 | 2014-03-10 | A kind of mobile DVD Switching Power Supply plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203933416U true CN203933416U (en) | 2014-11-05 |
Family
ID=51829168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420105346.3U Expired - Fee Related CN203933416U (en) | 2014-03-10 | 2014-03-10 | A kind of mobile DVD Switching Power Supply plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203933416U (en) |
-
2014
- 2014-03-10 CN CN201420105346.3U patent/CN203933416U/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: 20141105 Termination date: 20190310 |