CN203871910U - Charger with automatic power off function - Google Patents
Charger with automatic power off function Download PDFInfo
- Publication number
- CN203871910U CN203871910U CN201420158378.XU CN201420158378U CN203871910U CN 203871910 U CN203871910 U CN 203871910U CN 201420158378 U CN201420158378 U CN 201420158378U CN 203871910 U CN203871910 U CN 203871910U
- Authority
- CN
- China
- Prior art keywords
- charger
- circuit
- input
- output
- control module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a charger with an automatic power off function. The charger comprises an AC-DC input circuit and a DC voltage output circuit. The characteristics of the charger are that: an input terminal of the AC-DC input circuit is additionally provided with a relay; an output terminal of the DC voltage output circuit is additionally provided with a current detection circuit; a control module is additionally installed also; the current detection circuit is connected to the control module; and a control port of the relay is connected to the control module. By increasing monitoring output load current, when an electric appliance is filled with electricity, output current changes small rapidly; and when the electric appliance is detected to be filled with electricity, input high pressure alternating voltage is cut off totally by controlling of the relay, the power supply is cut off totally, and the purpose of saving energy is achieved.
Description
Technical field
The utility model relates to a kind of small household appliances, particularly a kind of after electrical equipment to be charged is full of electricity charger can realize the charger of complete power down.
Background technology
All there is the demand of charging in the electrical equipment of current nearly all use rechargeable battery, also just there is the demand of charger simultaneously, the charger of the various standards of prior art and model is very many, in order to guarantee the life-span of rechargeable battery, all there is Charge Management problem in the electrical equipment of the overwhelming majority, after battery is full of, control stops charging, but exist a problem charger not cut off the electricity supply completely, also there is power consumption, have larger energy waste.
Summary of the invention
Technical problem to be solved in the utility model is how after band charging electrical equipment is full of electricity, the power supply of charger also to be cut off automatically completely, reduces energy waste.
In order to solve the problems of the technologies described above, the utility model has designed a kind of charger with auto-breaking, comprise AC-DC input circuit, DC voltage output circuit, it is characterized in that having set up relay at AC-DC input circuit input, output at DC voltage output circuit has been set up current detection circuit, also set up control module, described current detection circuit is connected with control module, and the control port of described relay is connected with control module.
Described charger, is characterized in that described control module consists of current/voltage modular converter, voltage comparator and output driver module, and described current/voltage modular converter is connected with current detection circuit output; One of them input of voltage comparator and current/voltage modular converter, another input is connected with reference voltage, and output is connected with the input of output driver module, and output driver module is connected with the control port of described relay.
Described charger, characterized by further comprising temperature sensing circuit, and described temperature sensing circuit is connected with control module.
Enforcement the utlity model has following beneficial effect: by increase, monitor output load current, after electrical equipment is full of electricity, output current sharply diminishes, when electrical equipment being detected, be full of after electricity, by control relay, cut off the High AC voltage of input completely, reach completely and cut off the electricity supply, reach the object of energy savings.
Accompanying drawing explanation
Fig. 1 is system block diagram of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 is system block diagram of the present utility model.The alternating current of 220V is input to charger by plug and wire, receive respectively two path input ports of relay, two path delivery outlets of relay are connected with the input port of AC-DC input circuit, and relay is selected a control port, the model of two paths, charger is converted to required low-voltage DC by AC-DC input circuit modular converter by the High Level AC Voltage of input, by DC voltage output circuit, export to electrical equipment to be charged, when charger is normally treated charging electrical equipment while carrying out charging operations, output current is at least more than 100mA, when electrical equipment to be charged charges when complete, output current can sharply decline, therefore by current detection circuit, monitor this output current, can simple realization by comparator, when this electric current being detected and occur sharply to decline, judge that current charging operations is complete, by control module control relay, the operation of cutting off the electricity supply, charger self is also completely in power-down state, reach the object of energy savings.
In order further to improve its security feature, also increase temperature detecting module simultaneously, when the temperature of charger meets or exceeds the value setting in advance, by control module control relay, carried out power-off protection operation, improved the security feature of product.
Above disclosed is only a kind of embodiment of the utility model, certainly can not limit with this interest field of the utility model, one of ordinary skill in the art will appreciate that all or part of flow process that realizes above-described embodiment, and the equivalent variations of doing according to the utility model claim, still belong to the scope that utility model contains.
Claims (3)
1. a charger with auto-breaking, comprise AC-DC input circuit, DC voltage output circuit, it is characterized in that having set up relay at AC-DC input circuit input, output at DC voltage output circuit has been set up current detection circuit, also set up control module, described current detection circuit is connected with control module, and the control port of described relay is connected with control module.
2. charger according to claim 1, is characterized in that described control module consists of current/voltage modular converter, voltage comparator and output driver module, and described current/voltage modular converter is connected with current detection circuit output; One of them input of voltage comparator and current/voltage modular converter, another input is connected with reference voltage, and output is connected with the input of output driver module, and output driver module is connected with the control port of described relay.
3. charger according to claim 2, characterized by further comprising temperature sensing circuit, and described temperature sensing circuit is connected with control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420158378.XU CN203871910U (en) | 2014-04-03 | 2014-04-03 | Charger with automatic power off function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420158378.XU CN203871910U (en) | 2014-04-03 | 2014-04-03 | Charger with automatic power off function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203871910U true CN203871910U (en) | 2014-10-08 |
Family
ID=51652832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420158378.XU Expired - Fee Related CN203871910U (en) | 2014-04-03 | 2014-04-03 | Charger with automatic power off function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203871910U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329675A (en) * | 2016-11-19 | 2017-01-11 | 汤瑷语 | Charging device achieving automatic power off and charging method |
| CN107910929A (en) * | 2017-11-28 | 2018-04-13 | 吕芳顺 | A kind of band automatically powers off the phone charger of defencive function |
-
2014
- 2014-04-03 CN CN201420158378.XU patent/CN203871910U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329675A (en) * | 2016-11-19 | 2017-01-11 | 汤瑷语 | Charging device achieving automatic power off and charging method |
| CN107910929A (en) * | 2017-11-28 | 2018-04-13 | 吕芳顺 | A kind of band automatically powers off the phone charger of defencive function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205051931U (en) | LED's drive power supply | |
| CN203434637U (en) | Energy storage system | |
| CN202904280U (en) | Control circuit approaching to zero standby power consumption | |
| CN205051933U (en) | LED's drive power supply | |
| CN205070589U (en) | Multi -functional ACDC converting means | |
| CN204758746U (en) | Do benefit to and judge that electricity adds circuit of electrothermal relay adhesion | |
| CN203871910U (en) | Charger with automatic power off function | |
| CN201690259U (en) | Energy-saving charger | |
| CN202210696U (en) | Household solar energy charge and discharge system | |
| CN204349473U (en) | A kind of power supply system of DC source | |
| CN104882742A (en) | Intelligent charging socket | |
| CN204790456U (en) | A on -off control device for family's power management | |
| CN204167928U (en) | A kind of quick charged portable power source | |
| CN204145078U (en) | Based on the household electric appliances electric supply installation of ZigBee-network | |
| CN103779737A (en) | Smart wall plug type USB socket | |
| CN203800689U (en) | Rechargeable air conditioner | |
| CN204216613U (en) | A kind of portable power source | |
| CN203206133U (en) | Universal socket | |
| CN203761058U (en) | Solar DC grid-connected generation DC-DC special-purpose control device of communication base station | |
| CN203673280U (en) | Relay-controlled low-power control system | |
| CN206195435U (en) | Battery charge protection circuit | |
| CN204794017U (en) | Circuit with from power -off protection | |
| CN205336244U (en) | Intelligence switch circuit with load electric quantity that charges is full of back intelligence disconnection function | |
| CN204361198U (en) | Battery management system and high pressure Detection & Controling main controller thereof | |
| CN204794016U (en) | Simple is overheated from cutting off power supply circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20190403 |