CN2807576Y - Multifunctional charger - Google Patents
Multifunctional charger Download PDFInfo
- Publication number
- CN2807576Y CN2807576Y CN 200520034613 CN200520034613U CN2807576Y CN 2807576 Y CN2807576 Y CN 2807576Y CN 200520034613 CN200520034613 CN 200520034613 CN 200520034613 U CN200520034613 U CN 200520034613U CN 2807576 Y CN2807576 Y CN 2807576Y
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- Prior art keywords
- circuit
- output end
- charger
- power source
- model
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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 technologies of power source, which particularly relates to a charger and an Ac adaptor. The utility model discloses a multifunctional charger, and a charger and an Ac adaptor are combined together. The utility model has the technical proposals that the multifunctional charger comprises a power source circuit, a charging circuit and a Dc output end port, wherein the Dc output end port is connected with the power source circuit; the power source circuit is a switching power source circuit, and the Dc output end port is connected with a sampling circuit which is connected with an adjusting end of the power source circuit; the Dc output end port is a bi-directional end port. The multifunctional charger has the advantages that the functions of the charger and the Ac adaptor are integrated into one device, and thus carrying is convenient, use is more convenient and product cost is reduced. The multifunctional charger has the characteristics of compact structure, low cost and more functions, and is especially suitable for portable equipment.
Description
Technical field
The utility model relates to power technology, particularly charger and AC adapter.
Background technology
Portable set as notebook computer commonly used, DV video camera, digital camera etc., generally adopts rechargeable battery poweredly, and charger promptly is its indispensable annex.On the other hand, the said equipment also needs an AC adapter when using alternating current work, alternating current is transformed into the direct current that equipment is fit to.Like this, an equipment just needs two cover annexes, uses, carries all inconvenient.
The utility model content
Technical problem to be solved in the utility model is exactly that annex is many at existing portable set, and function is disperseed, and uses, carries inconvenient shortcoming, the multifunctional charger that provides a kind of charger and AC adapter to combine.
The utility model solves its technical problem, and the technical scheme of employing is, multifunctional charger comprises power circuit, and charging circuit is characterized in that: also comprise the dc output end mouth; Described dc output end mouth is connected with power circuit.
The beneficial effects of the utility model are, the function of charger and AC adapter is integrated in the table apparatus, not only carry, use convenient, and have reduced product cost.
Description of drawings
Fig. 1 is the structural representation of embodiment;
Fig. 2 is the circuit theory diagrams of embodiment.
Embodiment
Below in conjunction with drawings and Examples, describe the technical solution of the utility model in detail.
The technical solution adopted in the utility model is, multifunctional charger comprises power circuit, and charging circuit also comprises the dc output end mouth; Described dc output end mouth is connected with power circuit;
Described power circuit is a switching power circuit;
Described dc output end mouth is connected with sample circuit, and described sample circuit is connected with power circuit adjustment end;
Described dc output end mouth is a bidirectional port.
With multifunctional charger dc output end mouth of the present utility model, be connected with the corresponding interface of equipment, just can provide direct-current working volts for equipment.Dc output end mouth of the present utility model also can be used as the direct-flow input end mouth, is used to insert DC power supply, is battery charge by charging circuit.
Embodiment
As shown in Figure 1, this routine power circuit adopts switching power circuit, has the efficient height, and volume is little, characteristics capacious.Power supply is provided with Vo1, the output of Vo2 two-way, and Vo1 provides operating current for charging circuit, and Vo2 is by the output of dc output end mouth, for equipment provides direct-current working volts.This routine dc output end mouth output dc voltage has voltage stabilizing function, and the variation of output voltage is connected with switching power circuit adjustment end by sample circuit, and the variation of control output voltage guarantees the stable of output voltage.
The circuit working principle as shown in Figure 2.
Among the figure, J1, J2 are ac input end, and diode D1～D4 forms bridge rectifier, and alternating current is carried out rectification, for Switching Power Supply provides operating current.This example adopts pulse width modulation (PWM) switching power circuit, and the model of control chip IC3 is SG6848T, and the pulse of its 6 pin output is connected to the grid of MOS switching tube Q1, driven MOS switching tube Q1 action by resistance R 7.MOS switching tube Q1 pulse transformer B1 is at the elementary winding generation pulse current of pulse transformer B1.Two secondary winding of pulse transformer B1 are respectively by diode D5, D8 output voltage V o1, Vo2; Voltage Vo1 is the charging circuit power supply, and voltage Vo2 is connected with dc output end mouth DC1 by inductance L 3, provides direct voltage to external equipment.
Charging circuit mainly is made of DC/DC converter IC 5 and peripheral circuit, and major function is to provide charging current by battery interface K1, K2 for battery, and this part circuit has constant-current constant-voltage charging function, charged state deixis etc.
Operational amplifier IC2C among the figure, pressurizer IC4 and peripheral circuit are formed this routine sample circuit.The variation of output voltage V o2 inserts operational amplifier IC2C by resistance R 14; Compare through reference voltage V ef with pressurizer IC4 generation, operational amplifier IC2C exports control signal, by photoelectrical coupler IC1A and IC1B, the variation of Vo2 is fed back to the adjustment end of switching power circuit, 2 pin of control chip IC3, adjust the output pulse duty factor of its 6 pin, thus regulated output voltage.
Peripheral circuits such as operational amplifier IC2D among Fig. 2 and resistance R 31 are formed load current detection circuit, can close and connect charging current according to set point, avoid that power output is excessive to cause damage to circuit.
The multifunctional charger dc output end mouth that this is routine is connected with DC power supply, can use external dc power to be battery charge.At this moment, outside direct voltage is by the isolating diode D14 among Fig. 2, IC5 provides operating voltage for the DC/DC converter, also provides operating voltage by inductance L 3 for the peripheral circuit of charging circuit simultaneously, finishes and utilizes external dc power to carry out the function of battery charge.Other circuit structures and components and parts among Fig. 2 belong to this area routine techniques, describe in detail no longer one by one herein.
The foregoing description can not limit implementation of the present utility model, the member of ordinary skill in the art, according to basic principle of the present utility model, in conjunction with the ordinary skill in the art, can carry out various conversion to physical circuit, it all belongs to excursion of the present utility model.
Multifunctional charger of the present utility model has compact conformation, and is with low cost, and function is many The characteristics of sample are fit to portable set and use very much.
Claims (4)
1. multifunctional charger comprises power circuit, and charging circuit is characterized in that: also comprise the dc output end mouth; Described dc output end mouth is connected with power circuit.
2. multifunctional charger according to claim 1 is characterized in that: described power circuit is a switching power circuit.
3. multifunctional charger according to claim 1 is characterized in that: described dc output end mouth is connected with sample circuit, and described sample circuit is connected with power circuit adjustment end.
4. according to claim 1,2 or 3 described multifunctional chargers, it is characterized in that: described dc output end mouth is a bidirectional port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520034613 CN2807576Y (en) | 2005-06-27 | 2005-06-27 | Multifunctional charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520034613 CN2807576Y (en) | 2005-06-27 | 2005-06-27 | Multifunctional charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2807576Y true CN2807576Y (en) | 2006-08-16 |
Family
ID=36921871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520034613 Expired - Fee Related CN2807576Y (en) | 2005-06-27 | 2005-06-27 | Multifunctional charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2807576Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101488590B (en) * | 2007-12-28 | 2011-02-02 | 胜德国际研发股份有限公司 | A charging apparatus |
-
2005
- 2005-06-27 CN CN 200520034613 patent/CN2807576Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101488590B (en) * | 2007-12-28 | 2011-02-02 | 胜德国际研发股份有限公司 | A charging apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |