CN201048304Y - Manual power generation charging circuit of digital product - Google Patents
Manual power generation charging circuit of digital product Download PDFInfo
- Publication number
- CN201048304Y CN201048304Y CNU2007200387787U CN200720038778U CN201048304Y CN 201048304 Y CN201048304 Y CN 201048304Y CN U2007200387787 U CNU2007200387787 U CN U2007200387787U CN 200720038778 U CN200720038778 U CN 200720038778U CN 201048304 Y CN201048304 Y CN 201048304Y
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- circuit
- charging
- voltage stabilizing
- resistance
- digital product
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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 relates to a charging circuit, in particular to a manual power generation charging circuit for digital products. The manual power generation charging circuit for digital products comprises a small electric generator, a rectification filter voltage regulation circuit, rechargeable batteries and a charging plug socket. The utility model is characterized in that the circuit is also provided with an automatic charging commutation circuit which is composed of an external charging loaded induced circuit and an electronic switching, wherein, the electronic switching is arranged among the rechargeable batteries, the charging plug socket and the rectification filter charging circuit, and the electronic switching is connected by the external charging loaded induced circuit. Due to the arrangement of the automatic charging commutation circuit, the manual power generation charging circuit for digital products can automatically control the electronic switching to automatically switch according to the induced result of the external charging loaded induced circuit, the manual switching is not needed, the operation is convenient, at the same time, a shell is provided with no toggle switch, thereby the appearance is cleaner.
Description
Technical field
The utility model relates to a kind of charging circuit, particularly digital product electricity generated manually charging circuit.
Background technology
Along with science and technology development, the improving constantly of people's living standard, all kinds of digital products constantly enter in the daily life, as MP3, walkman, mobile phone etc.These products are owing to all carry, and volume is all less, therefore generally all adopt the power supply of small size dry cell or rechargeable battery.Just because of this, thus need change battery frequently or to battery charge, if but be in during the journey, particularly, just can't charge in the field of no civil power or during the mountain area.Some kinds of electricity generated manually charging devices occurred, the electricity generated manually charging device that has also has other function simultaneously, as radio reception, illumination etc. for this reason.The charging circuit that has the electricity generated manually charging device of other function has simultaneously generally comprised functional circuit and charging sockets such as small generator, rectification filtering voltage stabilizing circuit, chargeable battery and an illumination or radio reception.Small generator drives the small generator rotary electrification by wind or other man-operating mechanism, after the rectification filtering voltage stabilizing circuit rectification becomes direct current, as charge power supply to inner rechargeable battery or external loading, and functional circuit by inner chargeable battery as working power.For avoiding charge function and the mutual interference mutually of other function, influence is normal to be used, whenever being converted to illumination or radio reception state from external charged state or from illumination, radio reception state exchange during for external charging, all need carry out manual switchover, therefore the electricity generated manually charging device all is provided with two kinds of operating states of a diverter switch switching, to guarantee that arbitrary time only is operated under a kind of state, use cumbersomely, also influence outward appearance simultaneously.
The utility model content
The purpose of this utility model is to provide a kind of easy to use for overcoming the deficiencies in the prior art, can carry out the digital product electricity generated manually charging circuit that state switches automatically.
To achieve these goals, technical solution of the present utility model is as follows: digital product electricity generated manually charging circuit, comprise small generator, rectification filtering voltage stabilizing circuit, rechargeable battery and charging socket, it is characterized in that also being provided with the charging automatic switch-over circuit, described charging automatic switch-over circuit is made up of external charging load sensor circuit and electronic switch, electronic switch is arranged between rechargeable battery and charging socket and the rectification filtering voltage stabilizing circuit, and described electronic switch is controlled by external charging load sensor circuit.
Owing to be provided with the charging automatic switch-over circuit, digital product electricity generated manually charging circuit can switch automatically according to the automatic control of the induction result of external charging load sensor circuit electronic switch wherein.
The utility model is described in further detail below in conjunction with specific embodiments and the drawings.
Description of drawings
Accompanying drawing 1 is the utility model specific embodiment electricity theory diagram;
Accompanying drawing 2 is the utility model specific embodiment electrical schematic diagram.
Embodiment
As shown in Figure 1, digital product electricity generated manually charging circuit comprises small generator, rectification filtering voltage stabilizing circuit, rechargeable battery BT1, charging socket and charging automatic switch-over circuit, rectification filtering voltage stabilizing circuit is made up of current rectifying and wave filtering circuit and voltage stabilizing circuit, as shown in Figure 2, wherein diode D1～D6 and filter capacitor C4 form current rectifying and wave filtering circuit, voltage stabilizing circuit is by current-limiting resistance R1, voltage-stabiliser tube D7 and NPN type triode Q1 form, the line of departure of triode Q1 is the cathode output end of voltage stabilizing circuit, functional circuit in the present embodiment is the luminous lighting circuit, by light-emitting diode DS1～DS5, flash of light chip KD5201 and peripheral circuit thereof are formed, inner rechargeable battery is as the functional circuit power supply, and the series arm that is connected with positive-negative-positive switch triode Q4 and isolating diode D9 between the cathode output end of rectification filtering voltage stabilizing circuit and the rechargeable battery positive pole constitutes described electronic switch; Be provided with the series arm of positive-negative-positive switching controls triode Q2 and current-limiting resistance R9 between the both positive and negative polarity output of current rectifying and wave filtering circuit, the base stage of switching controls triode Q2 is through the parallel branch ground connection of base stage current-limiting resistance R6 and charging socket and resistance R 7, the resistance of described resistance R 7 is much larger than outer load internal resistance, and make switching controls triode Q2 be in the lightly conducting state to constitute described external charging load sensor circuit, be connected with the second isolating diode D11 between the cathode output end of rectification filtering voltage stabilizing circuit and the positive terminal of charging socket and constitute described charging automatic switch-over circuit.
Functional circuit of the present utility model is not limited only to the luminous lighting circuit certainly, if select for use radio reception integrated then have function of radio receiver.Charging socket in the utility model can be the plug that charge port matches in the various digital products, as the plug of USB plug, DC plug or other kind.
Operation principle: generator G1 wind again drives down through diode D1～D6 and filter capacitor C4 composition three phase rectifier filter circuit, the voltage stabilizing circuit voltage stabilizing of forming via current-limiting resistance R1, voltage-stabiliser tube D7 and NPN type triode Q1 again, when not having external load on the USB plug, switching controls triode Q2 is in the lightly conducting state, collector voltage is very low, switch triode Q4 saturation conduction, charge to rechargeable battery BT1 this moment; Outside USB plug connects during load (mobile phone or other digital product), an outer load is provided to this moment switching controls triode Q2 base stage, switching controls triode Q2 saturation conduction, the base stage of switch triode Q4 becomes high level, switch triode Q4 ends, this moment, to rechargeable battery BT1 charging, only externally load (mobile phone or other digital product) was not charged.
Claims (3)
1. digital product electricity generated manually charging circuit, comprise small generator, rectification filtering voltage stabilizing circuit, rechargeable battery and charging socket, it is characterized in that also being provided with the charging automatic switch-over circuit, described charging automatic switch-over circuit is made up of external charging load sensor circuit and electronic switch, electronic switch is arranged between rechargeable battery and charging socket and the rectification filtering voltage stabilizing circuit, and described electronic switch is controlled by external charging load sensor circuit.
2. digital product electricity generated manually charging circuit according to claim 1, it is characterized in that: described rectification filtering voltage stabilizing circuit is made up of current rectifying and wave filtering circuit and voltage stabilizing circuit, and the series arm that is connected with switch triode Q4 and isolating diode D9 between the cathode output end of described rectification filtering voltage stabilizing circuit and the rechargeable battery BT1 positive pole constitutes described electronic switch; Be provided with the series arm of switching controls triode Q2 and current-limiting resistance R9 between the both positive and negative polarity output of described current rectifying and wave filtering circuit, the base stage of described switching controls triode Q2 is through the parallel branch ground connection of base stage current-limiting resistance R6 and charging socket and resistance R 7, the resistance of described resistance R 7 is much larger than outer load internal resistance, and make switching controls triode Q2 be in the lightly conducting state to constitute described external charging load sensor circuit, be connected with the second isolating diode D11 between the cathode output end of rectification filtering voltage stabilizing circuit and the positive terminal of charging socket and constitute described charging automatic switch-over circuit.
3. digital product electricity generated manually charging circuit according to claim 1 and 2 is characterized in that: described charging socket is a USB plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200387787U CN201048304Y (en) | 2007-06-22 | 2007-06-22 | Manual power generation charging circuit of digital product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200387787U CN201048304Y (en) | 2007-06-22 | 2007-06-22 | Manual power generation charging circuit of digital product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201048304Y true CN201048304Y (en) | 2008-04-16 |
Family
ID=39300897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200387787U Expired - Fee Related CN201048304Y (en) | 2007-06-22 | 2007-06-22 | Manual power generation charging circuit of digital product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201048304Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532182A (en) * | 2013-09-24 | 2014-01-22 | 小米科技有限责任公司 | Charging assembly, portable electronic equipment and protection shell |
| CN104349762A (en) * | 2012-06-12 | 2015-02-11 | 八乐梦床业有限公司 | Bed device |
| CN104363874A (en) * | 2012-06-12 | 2015-02-18 | 八乐梦床业有限公司 | Bed device |
-
2007
- 2007-06-22 CN CNU2007200387787U patent/CN201048304Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104349762A (en) * | 2012-06-12 | 2015-02-11 | 八乐梦床业有限公司 | Bed device |
| CN104363874A (en) * | 2012-06-12 | 2015-02-18 | 八乐梦床业有限公司 | Bed device |
| CN103532182A (en) * | 2013-09-24 | 2014-01-22 | 小米科技有限责任公司 | Charging assembly, portable electronic equipment and protection shell |
| CN103532182B (en) * | 2013-09-24 | 2015-12-02 | 小米科技有限责任公司 | Charging assembly, portable electric appts and containment vessel |
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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: 20080416 Termination date: 20120622 |