CN201207574Y - Electric power adapter - Google Patents
Electric power adapter Download PDFInfo
- Publication number
- CN201207574Y CN201207574Y CNU2008200487455U CN200820048745U CN201207574Y CN 201207574 Y CN201207574 Y CN 201207574Y CN U2008200487455 U CNU2008200487455 U CN U2008200487455U CN 200820048745 U CN200820048745 U CN 200820048745U CN 201207574 Y CN201207574 Y CN 201207574Y
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- Prior art keywords
- power supply
- power
- circuit
- supply adaptor
- triode
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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 power supply adapter. The adapter comprises a power supply input interface, a power supply output interface, a switch unit, a controller and a signal acquisition unit, the signal acquisition unit automatically detects the charging information, such as current, voltage or frequent and the like, the switch unit cuts off power supplies of the power supply input interface and the power supply output interface when finishing the charging, so as to cut off the power supply of a computer charger at root, thereby avoiding the waste caused by power consumption of the charger itself, playing a role in protecting the computer and the charger, improving the safety of the electric apparatus, extending the service life of notebook PC, and having strong practicability.
Description
Technical field
The utility model relates to a kind of Switching Power Supply, particularly a kind of power supply adaptor that is connected between notebook computer charger and the power supply.
Background technology
Notebook computer is widely used as a kind of portable equipment, and notebook computer all is equipped with chargeable battery, and be equipped with one the coupling charger, whether its when charging relies on the equipment of notebook computer self or program to detect battery to be full of, if battery is full of, then computer automatic disconnection charger and battery prevent the battery overshoot.Owing to be from inner charger and the battery of disconnecting of computer, and charger is still charged, need to consume certain power, cause unnecessary waste, and have certain potential safety hazard, the reliability of use is not high, in addition, relying on the equipment of notebook computer self or program to detect battery, whether to be full of its fail safe not high, can influence the useful life of notebook, causes the increase of use cost.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of fail safe and reliability height, energy-conservation power supply adaptor.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of power supply adaptor comprises:
One power input interface is used to connect communication power supply,
One power output interface is electrically connected with described power input interface, is used to connect load,
One switch element is serially connected with between described power input interface and the described power output interface, turns on and off circuit,
One controller links to each other with described switch element, the turning on and off of control switch unit,
One signal gathering unit, acquired signal from circuit, and signal sent to controller,
One power circuit is for described switch element, controller and signal gathering unit provide dc supply.
The beneficial effects of the utility model are: power supply adaptor of the present utility model detects the information of charging automatically; as electric current, voltage or frequency etc.; the switch element power supply of input interface and power output interface of cutting off the electricity supply when charging is finished; cut off the power supply of computer charger from the source; avoid the power consumption of charger self to cause waste, computer and charger have been played a protective role, improved the security performance of electrical equipment; prolong the useful life of notebook computer, had very strong practicality.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a circuit block diagram of the present utility model;
Fig. 2 is a control principle block diagram of the present utility model;
Fig. 3 is the circuit diagram of the utility model embodiment.
Embodiment
With reference to Fig. 1, Fig. 3, a kind of power supply adaptor comprises:
One power input interface 1, this power input interface 1 can be a plug etc., is used to connect communication power supply;
One power output interface 2 is electrically connected with power input interface 1, and this power output interface 2 can be a socket etc., is used to connect load, promptly connects the input of charger, powers to charger;
One switch element 3 is serially connected with on the line between power input interface 1 and the power output interface 2, turns on and off circuit;
One controller 4, it links to each other with switch element 3, the turning on and off of control switch unit 3; The controller of present embodiment is a single-chip microcomputer, can certainly be other the circuit with similar functions.
One signal gathering unit 5, acquired signal from circuit, and signal sent to controller 3, judge it is to continue charging or send the instruction of cutting off the electricity supply for controller;
One power circuit 6 is for switch element 3, controller 4 and signal gathering unit 5 provide direct-current working volts.The power circuit of present embodiment comprises rectification circuit and voltage stabilizing circuit two parts, and voltage stabilizing circuit comprises a power module 78L05, switch element 3 by rectification circuit power supply, controller 4 and signal gathering unit 5 are powered by voltage stabilizing circuit.
Power supply adaptor of the present utility model detects the information of charging automatically; as electric current, voltage or frequency etc.; the switch element power supply of input interface and power output interface of cutting off the electricity supply when charging is finished; cut off the power supply of computer charger from the source; avoid the power consumption of charger self to cause waste, computer and charger have been played a protective role, improved the security performance of electrical equipment; prolong the useful life of notebook computer, had very strong practicality.
What the signal gathering unit 5 of present embodiment was gathered is the frequency of charging current, it comprises an instrument transformer T1, a prime comparator U5B, a back grade comparator U5A and a switch triode Q2, wherein the primary coil of instrument transformer T1 is serially connected on the N line of power input interface 1 and power output interface 2, secondary coil connects forward and the negative input of prime comparator U5B, be connected to feedback circuit between the negative input of wherein said prime comparator U5B and the output, this feedback circuit is made up of resistance R 8, the capacitor C 6 of resistance R 16 series connection in parallel.Cross-over connection is played a protective role to circuit by the protective circuit of being made up of protective resistance R13 and protection diode D4 between the secondary coil of described instrument transformer T1.
Back level comparator U5A positive input connects prime comparator U5B output, back level comparator U5A negative input connects reference circuits, this reference circuits comprises the first divider resistance R14 and the second divider resistance R15 that is serially connected with between back level comparator U5A output and the ground, and described back level comparator U5A negative input connects the node of the first divider resistance R14 and the second divider resistance R15.The base stage of back level comparator U5A output termination switch triode Q2, the collector electrode of switch triode Q2 are leaded up to clamp resistance R9 power circuit 6, and another road connects controller 4.
With reference to Fig. 3, the power frequency signal of charging is exported to switch triode Q2 by instrument transformer T1, prime comparator U5B and back level comparator U5A collection and after amplifying, switch triode Q2 gives controller by then exporting a series of pulse trains with conducting, and controller is the continuation charging by the judgement of paired pulses frequency or charges and finish.Along with the continuous decline of charging current frequency, when the power frequency of charging is reduced to a certain predetermined frequency, thinking that charging finishes, then send instruction, switch element 3 is cut off the electricity supply, play protection and energy-conserving action.
Further improve as of the present utility model, described switch element 3 comprises a relay R ELAY DPST and the first triode Q1, relay R ELAY DPST coil one termination power circuit 6, the collector electrode of another termination first triode Q1, the first triode Q1 grounded emitter, base stage connects controller 4, is connected to sustained diode 1 between the collector electrode of the power circuit 6 and the first triode Q1.
In order to make the user can see intuitively whether charging is finished, power supply adaptor of the present utility model also comprises the display unit 7 that is used for display working condition, this display unit 7 comprises charging indicator light LED1 and saturated indicator light LED2, the positive pole of electricity indicator light LED1 and saturated indicator light LED2 connects power circuit 6, and negative pole connects controller 4.
Claims (9)
1, a kind of power supply adaptor is characterized in that it comprises:
One power input interface (1) is used to connect communication power supply,
One power output interface (2) is electrically connected with described power input interface (1), is used to connect load,
One switch element (3) is serially connected with between described power input interface (1) and the described power output interface (2), turns on and off circuit,
One controller (4) links to each other with described switch element (3), the turning on and off of control switch unit (3),
One signal gathering unit (5), acquired signal from circuit, and signal sent to controller (3),
One power circuit (6) is for described switch element (3), controller (4) and signal gathering unit (5) provide dc supply.
2, a kind of power supply adaptor according to claim 1, it is characterized in that described signal gathering unit (5) comprises an instrument transformer (T1), one prime comparator (U5B), an one back grade comparator (U5A) and a switch triode (Q2), the primary coil of instrument transformer (T1) is serially connected on the N line of power input interface (1) and power output interface (2), secondary coil connects the forward and the negative input of prime comparator (U5B), back level comparator (U5A) positive input connects prime comparator (U5B) output, back level comparator (U5A) negative input connects reference circuits, the base stage of output termination switch triode (Q2), the collector electrode of switch triode (Q2) is leaded up to clamp resistance (R9) and is connect power circuit (6), and another road connects controller (4).
3, a kind of power supply adaptor according to claim 1 is characterized in that cross-over connection has the protective circuit of being made up of protective resistance (R13) and protection diode (D4) between the secondary coil of described instrument transformer (T1).
4, a kind of power supply adaptor according to claim 2, it is characterized in that described reference circuits comprises first divider resistance (R14) and second divider resistance (R15) that is serially connected with between back level comparator (U5A) output and the ground, described back level comparator (U5A) negative input connects the node of first divider resistance (R14) and second divider resistance (R15).
5, a kind of power supply adaptor according to claim 2 is characterized in that being connected to feedback circuit between the negative input of described prime comparator (U5B) and the output.
6, a kind of power supply adaptor according to claim 1, it is characterized in that described switch element (3) comprises a relay (RELAY DPST) and one first triode (Q1), relay (RELAY DPST) coil one termination power circuit (6), the collector electrode of another termination first triode (Q1), first triode (Q1) grounded emitter, base stage connects controller (4).
7, a kind of power supply adaptor according to claim 6 is characterized in that being connected to fly-wheel diode (D1) between the collector electrode of described power circuit (6) and first triode (Q1).
8, a kind of power supply adaptor according to claim 1 is characterized in that it also comprises the display unit (7) that is used for display working condition.
9, a kind of power supply adaptor according to claim 8, it is characterized in that described display unit (7) comprises charging indicator light (LED1) and saturated indicator light (LED2), the positive pole of charging indicator light (LED1) and saturated indicator light (LED2) connects power circuit (6), and negative pole connects controller (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200487455U CN201207574Y (en) | 2008-06-03 | 2008-06-03 | Electric power adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200487455U CN201207574Y (en) | 2008-06-03 | 2008-06-03 | Electric power adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201207574Y true CN201207574Y (en) | 2009-03-11 |
Family
ID=40466630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200487455U Expired - Fee Related CN201207574Y (en) | 2008-06-03 | 2008-06-03 | Electric power adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201207574Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762691A (en) * | 2014-01-28 | 2014-04-30 | 广东欧珀移动通信有限公司 | Battery charging device and battery charging protection control method |
| CN105305526A (en) * | 2014-06-25 | 2016-02-03 | 邱瑞杰 | current detection and management device |
| US10211656B2 (en) | 2014-01-28 | 2019-02-19 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Power adapter, terminal, and method for processing exception of charging loop |
-
2008
- 2008-06-03 CN CNU2008200487455U patent/CN201207574Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762691A (en) * | 2014-01-28 | 2014-04-30 | 广东欧珀移动通信有限公司 | Battery charging device and battery charging protection control method |
| CN103762691B (en) * | 2014-01-28 | 2015-12-23 | 广东欧珀移动通信有限公司 | Battery charger and cell charge protection control method |
| US10211656B2 (en) | 2014-01-28 | 2019-02-19 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Power adapter, terminal, and method for processing exception of charging loop |
| US11342765B2 (en) | 2014-01-28 | 2022-05-24 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Terminal, power adapter and method for handling charging anomaly |
| US11545843B2 (en) | 2014-01-28 | 2023-01-03 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Battery charging apparatus and battery charging protection control method |
| CN105305526A (en) * | 2014-06-25 | 2016-02-03 | 邱瑞杰 | current detection and management device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHONGSHAN CITY ZHONGMING ELECTRICAL APPLIANCES CO. Free format text: FORMER OWNER: ZHONG JIYE Effective date: 20100308 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 528400 ZHONGMING ELECTRICAL APPLIANCES CO., LTD., XINGHUA ROAD, QINGGANG INDUSTRIAL ZONE, DAYONG TOWN, ZHONGSHAN CITY, GUANGDONG PROVINCE TO: 528400 XINGHUA ROAD, QINGGANG INDUSTRY ZONE, DAYONG TOWN, ZHONGSHAN CITY, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100308 Address after: Xinghua Road Green Gang Industrial Zone of Guangdong Province, Zhongshan city in the town of 528400 Patentee after: Zhongshan City Zhongming Electric Appliance Co., Ltd. Address before: Xinghua Road Green Gang Industrial Zone 528400 in Guangdong Province, Zhongshan city in the town of Ming Electrical Appliance Co. Ltd. Patentee before: Zhong Jiye |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090311 Termination date: 20150603 |
|
| EXPY | Termination of patent right or utility model |