CN104377780A - Device for automatically cutting off charging source after charging of mobile device - Google Patents
Device for automatically cutting off charging source after charging of mobile device Download PDFInfo
- Publication number
- CN104377780A CN104377780A CN201410706971.8A CN201410706971A CN104377780A CN 104377780 A CN104377780 A CN 104377780A CN 201410706971 A CN201410706971 A CN 201410706971A CN 104377780 A CN104377780 A CN 104377780A
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- CN
- China
- Prior art keywords
- charging
- charger
- module
- current
- sensing means
- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
- H02J7/0032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits disconnection of loads if battery is not under charge, e.g. in vehicle if engine is not running
Abstract
The invention provides a device for automatically cutting off a charging source after charging of a mobile device and belongs to the fields such as electronics. The device comprises a charger module, a current detector module and a charging source module. The data output end of the charger module is connected with the data input end of the current detector module. The data output end of the current detector module is connected with the data input end of the charging source module. The device is used mainly to solve the problem that after charging of the mobile device requiring frequency charging, most people may forget to unplug a charger, causing great waste in electricity; the problem that certain influence occurs to the quality of the charger; the problem that the service life of the charger is affected; and the problem that major safety hazards are caused. When charging current which is automatically detected is lower than a set value, a power supply circuit is automatically cut off; after charging, the charging current is very low since the charger generally uses constant current in charging; detecting is easier.
Description
Technical field
Belong to the fields such as electronics, relate to current detection technology, automatically can detect charging current by this device, when charging current is lower than set point, automatically cut off power supply circuits.
Background technology
Mobile device all needs frequent charging, after charging terminates, a lot of people can forget the electric power being pulled out by charger and waste will be caused so huge, also affects to charging device quality simultaneously, also can affect the useful life of charging device, can also major safety risks be caused.Of the present invention appearance is intended to head it off, automatically can detect charging current by this device, when charging current is lower than set point, automatically cuts off power supply circuits.
Summary of the invention
The object of this invention is to provide a kind of based on current detection technology and device, realize automatically detecting charging current, when charging current is lower than set point, automatically cut off the function of power supply circuits.
Hardware of the present invention is made up of charger module, current sensing means module, charging power modules.
Technical scheme of the present invention: comprise charger module, current sensing means module, charging power modules.The data output end of charger module connects the data input pin of current sensing means module; The data output end of current sensing means module connects the data input pin of charging power modules.This device major function is that mobile device all needs frequent charging, and after charging terminates, a lot of people can forget the electric power being pulled out by charger and waste will be caused so huge.Also charging device quality is affected simultaneously, also can affect the useful life of charging device, can also major safety risks be caused.This device is by automatically detecting charging current.When charging current is lower than set point, automatically cut off power supply circuits, because charger is generally all constant current charge, at the end of charging, charging current will fall too low.Thus detect with comparalive ease.
the advantage that the present invention has: 1. simple to operate, it is unique to experience; 2. simple installation, compact.
Accompanying drawing explanation
Fig. 1 is block diagram of the present invention; Fig. 2 is configuration schematic diagram of the present invention.
Embodiment
As shown in Figure 1, the present invention includes charger module, current sensing means module, charging power modules, current sensing means module detects the charging current in charger module automatically, when charging current is lower than set point, automatically cut off power supply circuits, complete charge, because charger is all generally constant current charge, at the end of charging, charging current will fall too low, thus detects with comparalive ease;
Described charger module is exactly common charging of mobile devices device, can charge when connecting with the mains for mobile device;
Described current sensing means module is exactly detect charging current in real time to compare with the threshold value set, once be less than threshold value, i.e. and charging complete, power supply of cutting off the electricity supply;
Described charging power modules can be the insert row with dump function, shows that charging has completed meeting automatic cut-off power, complete charge after receiving the signal of current sensing means;
As shown in Figure 2, this device major function is that current sensing means 2 detects the charging current in charger 1 automatically, because charger 1 is generally all constant current charge, at the end of charging, charging current will fall too low, thus detect with comparalive ease, when current sensing means 2 detects that charging current in charger 1 is lower than set point, current sensing means 2 will send signal to charge power supply 3, charge power supply 3 shows after receiving the signal of current sensing means 2 that charging has completed meeting automatic cut-off power, complete charge.
Above one embodiment of the present of invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (3)
1. one kind is automatically cut off the device of charge power supply after charging of mobile devices terminates, it is characterized in that comprising: comprise charger module, current sensing means module, charging power modules, the data output end of charger module connects the data input pin of current sensing means module; The data output end of current sensing means module connects the data input pin of charging power modules.
2. a kind of device automatically cutting off charge power supply after charging of mobile devices terminates as claimed in claim 1, be further characterized in that described charger module is exactly common charging of mobile devices device, can charge for mobile device when connecting with the mains, described current sensing means module is exactly detect charging current in real time to compare with the threshold value set, once be less than threshold value, i.e. charging complete, power supply of cutting off the electricity supply.
3. a kind of device automatically cutting off charge power supply after charging of mobile devices terminates as claimed in claim 1, be further characterized in that described charging power modules, it can be the insert row with dump function, after receiving the signal of current sensing means, show that charging has completed meeting automatic cut-off power, complete charge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410706971.8A CN104377780A (en) | 2014-11-27 | 2014-11-27 | Device for automatically cutting off charging source after charging of mobile device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410706971.8A CN104377780A (en) | 2014-11-27 | 2014-11-27 | Device for automatically cutting off charging source after charging of mobile device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104377780A true CN104377780A (en) | 2015-02-25 |
Family
ID=52556508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410706971.8A Pending CN104377780A (en) | 2014-11-27 | 2014-11-27 | Device for automatically cutting off charging source after charging of mobile device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104377780A (en) |
-
2014
- 2014-11-27 CN CN201410706971.8A patent/CN104377780A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150225 |
|
| WD01 | Invention patent application deemed withdrawn after publication |