CN202353252U - Intelligent electronic charger - Google Patents
Intelligent electronic charger Download PDFInfo
- Publication number
- CN202353252U CN202353252U CN2011204700866U CN201120470086U CN202353252U CN 202353252 U CN202353252 U CN 202353252U CN 2011204700866 U CN2011204700866 U CN 2011204700866U CN 201120470086 U CN201120470086 U CN 201120470086U CN 202353252 U CN202353252 U CN 202353252U
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- circuit
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- smart electronics
- resistance
- triode
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Dc-Dc Converters (AREA)
Abstract
An intelligent electronic charger of which the circuit structure is an improvement in a traditional circuit structure is characterized by adopting a double-pipe pulse-width modulation circuit comprising a feedback circuit, an over-current protection circuit, a voltage modulation circuit and a comparator circuit, wherein the feedback circuit is formed in the way that a capacitor (C3) and a resistor (R3) are connected in series and then connected in parallel with an inductor (L2); the over-current protection circuit consists of a resistor (R4), a resistor (R5), a capacitor (C5) and a triode (Q2); the voltage modulation circuit consists of a stabilovolt (DZ2), an amplifier (U1), a triode (Q2) and a capacitor (C6); and the comparator circuit consists of an amplifier (U3), a stabilovolt (DZ4) and a resistor (R15). The circuit structure has the advantages of light weight, material conservation, high stability, power conservation, wide input voltage range, low cost, high reliability and the like.
Description
Technical field
The utility model belongs to small-power power, particularly a kind of smart electronics charger that adopts the double hose pulse-width modulation.
Background technology
At present, along with popularizing of various electronic products (as: mobile phone, intercom, camera, MP3, MP4, PSP, PDA, electric motor car etc.), charger has become requisite article in people's life.Kind to different its chargers of electronic product also is of all kinds.For example: power supply adaptor, supply convertor, directly fill, a plurality of titles such as line fills, traveling charger.
Though existing charger kind item are many, all exist to waste phenomenon, charger still was inserted in consumes electric power on the socket after promptly battery was full of, and consumed the nervous energy in vain, the charger enormous amount, its waste also is considerable.The shortcoming of existing charger moreover; Because what most of conventional charger adopted all is the Industrial Frequency Transformer circuit; The component number of its complicated circuit and consumption is more; Not only Heavy Weight but also stability are also relatively poor, therefore can be for vast electronic product user provides a kind of green energy conservation more, output is stable and the cheaper charger of cost becomes the problem that must solve now.
Summary of the invention
To existing problem in the above-described prior art, the purpose of the utility model is: provide a kind of and not only can overcome existing various deficiencies in the existing charger, and the cheaper smart electronics charger of price.
The utility model solves the technical scheme that its technical problem adopted:
A kind of smart electronics charger; Its circuit structure is improved on conventional circuit structure; It is characterized in that said smart electronics charger has adopted the double hose pulse-width modulation circuit, wherein comprises feedback circuit, current foldback circuit, voltage modulation circuit and comparator circuit;
Said feedback circuit is formed in parallel with second inductance (L2) by the series connection of the 3rd electric capacity (C3) and the 3rd resistance (R3) again, self-oscillation that can holding circuit;
Said current foldback circuit; Form by the 4th resistance (R4), the 5th resistance (R5), the 5th electric capacity (C5) and second triode (Q2); When R4 detects metal-oxide-semiconductor and causes that electric current is too high for a certain reason; Current potential raises second triode (Q2) conducting is effectively ended, and plays the Current Regulation effect simultaneously;
Said voltage modulation circuit is made up of second voltage-stabiliser tube (DZ2), first amplifier (U1), second triode (Q2) and the 6th electric capacity (C6), when output voltage raises or reduce, plays the pulse-width modulation effect, makes voltage be adjusted to stable state again;
Said comparator circuit; Form by the 3rd amplifier (U3), the 4th voltage-stabiliser tube (DZ4) and the 15 resistance (R15); It can control the conversion between battery float voltage and the constant voltage; And the conversion between traffic lights during voltage transitions, and accurately sample cell output voltage and charging current size, thus guarantee that charger voltage effectively protects over-charging of battery or owe to fill also extending battery life in fixed sample point upset in time.
The beneficial effect of the utility model is: adopt to the utlity model has following advantage:
1, the utility model has adopted switched-mode power supply circuit to replace traditional Industrial Frequency Transformer circuit, on weight, reaches to alleviate and practiced thrift metallicl magnetic material.
2, the switched-mode power supply circuit own loss is low, and under identical power output, its stability and efficient exceed much than Industrial Frequency Transformer circuit, but power saving about 40%.
3, the switching power circuit input voltage range is big, can exchange steady operation between 175V ~ 260V.
4, adopt self-maintained circuit, compare with integrated circuit and have the low advantage of cost.
5, the utility model circuit structure is simple, and component number is less, and stability and reliability are all than higher.
Description of drawings
Fig. 1 is a smart electronics charger circuit structure chart.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further specified.
As shown in Figure 1: a kind of smart electronics charger; Its circuit structure is the improvement on conventional circuit structure; It is characterized in that; Said smart electronics charger has adopted double hose face width modulation circuit, wherein comprises feedback circuit (1), current foldback circuit (2), voltage modulation circuit (3) and comparator circuit (4), and is interconnected through lead;
Said feedback circuit (1) is formed in parallel with second inductance (L2) by the series connection of the 3rd electric capacity (C3) and the 3rd resistance (R3) again, self-oscillation that can holding circuit;
Said current foldback circuit (2) is made up of the 4th resistance (R4), the 5th resistance (R5), the 5th electric capacity (C5) and second triode (Q2); When R4 detects metal-oxide-semiconductor and causes that electric current is too high for a certain reason; Current potential raises second triode (Q2) conducting is effectively ended; Play the Current Regulation effect simultaneously, that is: when electric current strengthens rapidly for a certain reason, realize that the zero output protection circuit is not damaged at circuit thereby circuit turn-offs the failure of oscillations voluntarily;
Said voltage modulation circuit (3) is made up of second voltage-stabiliser tube (DZ2), first amplifier (U1), second triode (Q2) and the 6th electric capacity (C6), when output voltage raises or reduce, plays the pulse-width modulation effect, makes voltage be adjusted to stable state again;
Said comparator circuit (4) is made up of the 3rd amplifier (U3), the 4th voltage-stabiliser tube (DZ4) and the 15 resistance (R15); It can control the conversion between battery float voltage and the constant voltage; And the conversion between traffic lights during voltage transitions; And accurately sample cell output voltage and charging current size, thereby the assurance charger voltage is effectively protected over-charging of battery or is owed to fill also extending battery life in the upset in time of fixed sample point.
Claims (5)
1. smart electronics charger; Its circuit structure is improved on conventional circuit structure; It is characterized in that; Said smart electronics charger has adopted the double hose pulse-width modulation circuit, wherein comprises feedback circuit, current foldback circuit, voltage modulation circuit and comparator circuit, and is interconnected through lead.
2. smart electronics charger according to claim 1 is characterized in that, said feedback circuit is formed in parallel with second inductance (L2) by the series connection of the 3rd electric capacity (C3) and the 3rd resistance (R3) again, self-oscillation that can holding circuit.
3. smart electronics charger according to claim 1; It is characterized in that; Said current foldback circuit is made up of the 4th resistance (R4), the 5th resistance (R5), the 5th electric capacity (C5) and second triode (Q2), when the 4th resistance (R4) detects metal-oxide-semiconductor and causes that electric current is too high for a certain reason; Current potential raises second triode (Q2) conducting is effectively ended, and plays the Current Regulation effect simultaneously.
4. smart electronics charger according to claim 1; It is characterized in that; Said voltage modulation circuit is made up of second voltage-stabiliser tube (DZ2), first amplifier (U1), second triode (Q2) and the 6th electric capacity (C6), when output voltage raises or reduce; Play the pulse-width modulation effect, make voltage be adjusted to stable state again.
5. smart electronics charger according to claim 1; It is characterized in that; Said comparator circuit; Be made up of the 3rd amplifier (U3), the 4th voltage-stabiliser tube (DZ4) and the 15 resistance (R15), it can control the conversion between battery float voltage and the constant voltage, and the conversion between traffic lights during voltage transitions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204700866U CN202353252U (en) | 2011-11-23 | 2011-11-23 | Intelligent electronic charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204700866U CN202353252U (en) | 2011-11-23 | 2011-11-23 | Intelligent electronic charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202353252U true CN202353252U (en) | 2012-07-25 |
Family
ID=46542216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204700866U Expired - Fee Related CN202353252U (en) | 2011-11-23 | 2011-11-23 | Intelligent electronic charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202353252U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882953A (en) * | 2015-05-29 | 2015-09-02 | 苏州工业职业技术学院 | Mobile phone charging control circuit |
-
2011
- 2011-11-23 CN CN2011204700866U patent/CN202353252U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882953A (en) * | 2015-05-29 | 2015-09-02 | 苏州工业职业技术学院 | Mobile phone charging control circuit |
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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: 20120725 Termination date: 20121123 |