CN201113474Y - Multifunctional charger - Google Patents
Multifunctional charger Download PDFInfo
- Publication number
- CN201113474Y CN201113474Y CNU2007200502107U CN200720050210U CN201113474Y CN 201113474 Y CN201113474 Y CN 201113474Y CN U2007200502107 U CNU2007200502107 U CN U2007200502107U CN 200720050210 U CN200720050210 U CN 200720050210U CN 201113474 Y CN201113474 Y CN 201113474Y
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- CN
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- Prior art keywords
- circuit
- voltage
- input
- output port
- charging
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- Expired - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a multifunctional charger which can realize the charging in various input modes and output modes; the utility model comprises a voltage-reduction circuit connected with an input power supply, a charging loop connected with the voltage-reduction circuit, a battery jar connected with the charging loop and a charging control circuit for controlling the charging process and also comprises a USB input/output port, wherein, a voltage booster circuit and a voltage boosting control circuit are connected between the battery jar and the USB input/output port; the input power supply is connected to the USB input/output port through the voltage-reduction circuit. The multifunctional charger forms various input and output modes, provides various supports for personal digital equipment, is more convenient to carry and use and saves the resources.
Description
Technical field
The utility model relates to a kind of charging device, especially a kind of can be to the multifunctional charger of rechargeable battery and external electric equipment charging.
Background technology
Portable set as mobile phone, PDA and MP3, generally all adopts rechargeable battery poweredly, and charger has also become indispensable annex.At present, the charger kind on the market is a lot, but function singleness, and input mode may adopt wherein a kind of such as DC12V mode, USB interface or battery; The way of output also is limited as a kind of mostly, because function singleness has to buy the needs that many moneys charger could satisfy the various device charging, neither is convenient for carrying use, more causes the consumer to waste property, the waste public resource.
The utility model content
The utility model discloses a kind of multifunctional charger, can realize the charging of the multiple input mode and the way of output, thereby more conveniently carry and use, and economize on resources.
The technical solution adopted in the utility model is to achieve these goals:
A kind of multifunctional charger, comprise the reduction voltage circuit that is connected with the input power supply, the charge circuit that is connected with reduction voltage circuit, the battery case that is connected with charge circuit and the charging control circuit that charging process is controlled, also include a USB input/output port, wherein: be connected with booster circuit and boost control circuit between described battery case and USB input/output port, described input power supply is connected to the USB input/output port by reduction voltage circuit.
Further, described USB input/output port is connected with battery case after connecting boost control circuit, charging control circuit and charge circuit successively; Described battery case is connected with the USB input/output port by booster circuit.
The utility model can be realized multiple input charging modes such as DC12V power supply, USB interface and battery, can also export to simultaneously battery and directly external equipment charging, uses and economizes on resources thereby be convenient for carrying.
Description of drawings
Fig. 1 is a system block diagram of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is made an into detailed description.
Shown in Fig. 1 system block diagram, the utility model comprises battery case that the reduction voltage circuit that is connected with the input power supply, the charge circuit that is connected with reduction voltage circuit, charge circuit connect and the charging control circuit that charging process is controlled, also include a USB input/output port, wherein: be connected with booster circuit and boost control circuit between described battery case and USB input/output port, described input power supply is connected to the USB input/output port by reduction voltage circuit.
Fig. 2 is a system circuit diagram, import as the DC12V power supply, when battery case is packed rechargeable battery into, DC-DC reduction voltage circuit by D1, R1, IC1, L1, C3 formation, high-precision controller IC2 the 4th pin voltage is higher than 5 pin in the control circuit at this moment, 2 pin are exported 0 voltage, and the control IC 3 of boosting is not worked; IC2 the 8th pin voltage is higher than 9 pin simultaneously, and 14 pin are low-voltage, and Q1 and Q2 conducting enter charged state.When battery was not full of, IC2 the 7th pin voltage was lower than 6 pin in the charging control circuit, 1 pin output LOW voltage, Q1 and Q2 conducting; When battery was full of, IC2 the 7th pin voltage was higher than 6 pin in the control circuit, 1 pin output HIGH voltage, and Q1 and Q2 end, and R10 carries out the trickle benefit to battery in the circuit.
When USB inputs to battery charge (by the USB private cable of special configuration), high-precision controller IC2 the 4th pin voltage is higher than 5 pin in the control circuit at this moment, and 2 pin are exported 0 voltage, and the control IC 3 of boosting is not worked; IC2 the 8th pin voltage is higher than 9 pin simultaneously, and 14 pin are low-voltage, and Q1 and Q2 conducting enter charged state.When battery was not full of, IC2 the 7th pin voltage was lower than 6 pin in the charging control circuit, 1 pin output LOW voltage, Q1 and Q2 conducting; When battery was full of, IC2 the 7th pin voltage was higher than 6 pin in the control circuit, 1 pin output HIGH voltage, and Q1 and Q2 end, and R10 carries out the trickle benefit to battery in the circuit.
When the input of DC12V power supply was charged to external electric equipment by the USB output, the DC-DC reduction voltage circuit by D1, R1, IC1, L1, C3 constitute was connected to the USB output, powers to external electric equipment.
When not having DC12V and USB input power supply, have only battery case to be incorporated with battery, IC2 the 4th pin is 0 voltage in the control circuit, and the 5th pin is a high voltage, and the 2nd pin also is a high voltage, the IC3 work in the control of boosting, IC3 the 5th pin output high-frequency PWM pulse control Q5 conducting is finished boost function with L2, D4, R24, C12, and R23, R25 and R35 control the output voltage that boosts,, power to the USB output port by D3 to external electric equipment; IC2 the 9th pin is than the 8th pin voltage height simultaneously, and 14 pin are high voltage, and Q1 and Q2 do not have current circuit, enter cut-off state, and charge circuit disconnects.
The utility model, can realize multiple input charging modes such as DC12V power supply, USB interface and battery, can export to simultaneously rechargeable battery and directly external equipment charging, go for equipment such as various rechargeable batteries, PDA, MP3, use and economize on resources thereby be convenient for carrying.
Claims (2)
1. multifunctional charger, comprise the reduction voltage circuit that is connected with the input power supply, the charge circuit that is connected with reduction voltage circuit, the battery case that is connected with charge circuit and the charging control circuit that charging process is controlled, it is characterized in that, also include a USB input/output port, wherein: be connected with booster circuit and boost control circuit between described battery case and USB input/output port, described input power supply is connected to the USB input/output port by reduction voltage circuit.
2. according to the described multifunctional charger of claim 1, it is characterized in that described USB input/output port is connected with battery case after connecting boost control circuit, charging control circuit and charge circuit successively; Described battery case is connected with the USB input/output port by booster circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200502107U CN201113474Y (en) | 2007-04-11 | 2007-04-11 | Multifunctional charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200502107U CN201113474Y (en) | 2007-04-11 | 2007-04-11 | Multifunctional charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201113474Y true CN201113474Y (en) | 2008-09-10 |
Family
ID=39965219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200502107U Expired - Fee Related CN201113474Y (en) | 2007-04-11 | 2007-04-11 | Multifunctional charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201113474Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103809639A (en) * | 2012-11-06 | 2014-05-21 | 纬创资通股份有限公司 | Bias circuit and electronic device |
-
2007
- 2007-04-11 CN CNU2007200502107U patent/CN201113474Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103809639A (en) * | 2012-11-06 | 2014-05-21 | 纬创资通股份有限公司 | Bias circuit and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080910 Termination date: 20140411 |