CN202906501U - Intelligent mobile phone charger with self turn-off function - Google Patents
Intelligent mobile phone charger with self turn-off function Download PDFInfo
- Publication number
- CN202906501U CN202906501U CN 201220432321 CN201220432321U CN202906501U CN 202906501 U CN202906501 U CN 202906501U CN 201220432321 CN201220432321 CN 201220432321 CN 201220432321 U CN201220432321 U CN 201220432321U CN 202906501 U CN202906501 U CN 202906501U
- Authority
- CN
- China
- Prior art keywords
- switch
- circuit
- charging
- numerical control
- signal
- 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
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to an intelligent mobile phone charger with a self turn-off function. The intelligent mobile phone charger comprises a hand-operated self-reset switch, a numerical control switch, a charging circuit, a current detection circuit, and a logical judgment circuit. A hand-operated spring-reset switch is a normally-open switch, and when a switch button is pressed down manually, the hand-operated spring-reset switch is switched on and is delayed to switch off by m minutes in an automatic reset manner. The numerical control switch is turned on when a numerical control signal is "1" and is delayed to turn off after a certain time when the numerical control signal is "0". The charging circuit realizes the conversion of an alternating current power supply into a mobile phone charging direct current power supply. The current detection circuit is responsible for detecting a charging current and sending a detection signal to the logical judgment circuit. The logical judgment circuit is responsible for comparing a charging current value with a preset current vault and generating a trigger signal to control the on-off of the numerical control switch, when a charging current is not less than a preset current, the logical judgment circuit outputs "1", and when the charging current is less than the preset current, the logical judgment circuit outputs "0" after n-minute delay.
Description
Technical field
The present invention relates to the electronic equipment dc charger, particularly relate to battery charger for mobile phone.
Background technology
Current, mobile communication has become the indispensable important tool of the whole mankind.According to claiming in the up-to-date portion report of delivering of International Telecommunication Union, by the end of the year 2011, whole world cellphone subscriber has reached 5,900,000,000,84% of the whole world 7,900,000,000 populations have been accounted for, and the latest digital that discloses according to three large operators of China Telecom, China Mobile, CHINAUNICOM, the China mobile number of users has reached 1,000,000,000 scales.
Whether in daily life, for convenient, no matter mobile phone is charged, cellphone subscriber often custom causes charger to be in for a long time Light Condition charger for mobile phone ac plug incoming transport power supply all the time.The situation of in time not taking off mobile phone after in addition, cell-phone battery electric-charge quantity is full of and making charger be in floating charge state also occurs often.In the prior art, charger for mobile phone all contains high frequency transformer, and the former limit of high frequency transformer and AC power can form the loop, therefore under above-mentioned Light Condition or floating charge state, all there is ferromagnetic loss in high frequency transformer, and the loss of above-mentioned two states is approaching, i.e. no-load loss.
Each mobile-phone manufacturers of our times just constantly make great efforts to reduce charger no-load loss, and have formulated star criteria.By the charger for mobile phone no-load loss star criteria of LG, Motorola, Nokia, Samsung and Sony Ericsson five large mobile-phone manufacturers formulations, as shown in Figure 1.
Can find the more high requirement that more meets social Green Development of star from Fig. 1.Calculate with five-star standard 30mW, according to 1 annual Light Condition every day 10 hours, then the charger no-load loss in 1 year of 1 cellphone subscriber was about 0.1 degree electricity.But, China 1,000,000,000 cellphone subscribers only, charger no-load loss just reaches 100,000,000 degree electricity in 1 year! Calculate according to 0.5 yuan of the average resident living electricity price of China/degree, then 1 year whole society will pay 5,000 ten thousand yuan of extra electric costs.Therefore, realize that charger for mobile phone cuts off AC power automatically, the no-load loss of eliminating charger zero load or floating charge generation is very significant.
Compared with prior art, the present invention has the following advantages:
The present invention is a kind of smart mobile phone charger that has from turn-off function, and with respect to existing charger for mobile phone, this charger has the function that battery of mobile phone is full of rear automatic cut-out and AC power electrical connection, thereby eliminates no-load loss, realizes energy-conservation.
Summary of the invention
The present invention has designed a kind of smart mobile phone charger that has from turn-off function, can realize the electrical connection of the complete rear automatic cut-out charger of charging mobile phone battery and AC power.
Purpose of the present invention can realize by following scheme: a kind of smart mobile phone charger that has from turn-off function, it is characterized in that, and comprise Manual spring reset switch, numerical control switch, charging circuit, current detection circuit, logic judging circuit.
Described Manual spring reset switch is characterized in that, switch access live wire is a normal open switch, manually press shift knob after, switch connection and connect after postpone the disconnection that automatically resets in m minute.
Described numerical control switch is characterized in that, switch access live wire, and by the connection of digital signal " 1 ", " 0 " control switch with cut-off operation, when digital control signal was " 0 ", switch was in the state of cut-offfing; When digital control signal was " 1 ", switch was in on-state.
Described charging circuit is characterized in that, charging circuit is transformed into DC power supply by the analog circuit that the circuit elements such as high frequency transformer, semiconductor switch pipe, diode, resistance, electric capacity, inductance form with AC power.
Described current detection circuit is characterized in that, has higher current detection accuracy, and the charging current signal is passed to logic judging circuit.
Described logic judging circuit, it is characterized in that, charging current signal and predetermined current value are compared: when current signal is lower than the electric current preset value when (comprising that current signal is zero), after then logic judging circuit postpones certain hour, output digit signals " 0 " makes numerical control switch be in the state of cut-offfing; When current signal during greater than the electric current preset value, logic judging circuit is output digit signals " 1 " without delay, makes numerical control switch be in on-state.
Description of drawings
The no-load loss star criteria that Fig. 1 five large mobile-phone manufacturers formulate;
Fig. 2 is charger schematic diagram of the present invention;
Fig. 3 logic judging circuit schematic diagram.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 2, a kind of smart mobile phone charger that has from turn-off function is characterized in that, comprises Manual spring reset switch, numerical control switch, charging circuit, current detection circuit, logic judging circuit.Its charge step is as described below:
Before the charging beginning, the Manual spring reset switch is normally open, because the charging current signal is zero, the digital control signal of logic judging circuit output is " 0 ", so numerical control switch also is in normally open simultaneously.
During the charging beginning, at first charger is connected with battery of mobile phone with AC power respectively, then presses Manual spring reset switch button, make the Manual spring reset switch connect AC power, charger enters battery charging state.Detected charging current signal is greater than the predetermined current value simultaneously, and logic judging circuit is exported digital control signal " 1 ", and then numerical control switch enters on-state, and this moment, Manual spring reset switch and numerical control switch all were in on-state.Charge after m minute, the disconnection that automatically resets of Manual spring reset switch only has numerical control switch still to be in on-state.When charging current reduces and during less than the predetermined current value gradually, think that battery has entered floating charge state and approached to be full of, then postpone certain hour after, logic judging circuit output digital control signal " 0 ", numerical control switch enters the state of cut-offfing, and the cut-out charger is connected with AC power, and charging finishes.When needs charge again, then repeat above-mentioned steps.
Claims (1)
1. a smart mobile phone charger that has from turn-off function is characterized in that, comprises Manual spring reset switch, numerical control switch, charging circuit, current detection circuit, logic judging circuit; Described Manual spring reset switch access live wire is a normal open switch, manually press shift knob after, switch connection and connect after postpone the disconnection that automatically resets in m minute; Described numerical control switch access live wire, by the connection of digital signal " 1 ", " 0 " control switch with cut-off operation, when digital control signal was " 0 ", switch was in the state of cut-offfing; When digital control signal was " 1 ", switch was in on-state; Described charging circuit is transformed into DC power supply by the analog circuit that the circuit elements such as high frequency transformer, semiconductor switch pipe, diode, resistance, electric capacity, inductance form with AC power; Described charging control circuit is the realization measurement of voltage signal with the charging current signal transition by series resistance, adopt voltage comparator to realize that charging current signal and setting charging current threshold value compare the realization logic and judge, utilize MCU to realize reception and the delay function of logic judgement signal, and output digital control signal " 1 " or " 0 ", control switch is connected and is cut-off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220432321 CN202906501U (en) | 2012-08-29 | 2012-08-29 | Intelligent mobile phone charger with self turn-off function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220432321 CN202906501U (en) | 2012-08-29 | 2012-08-29 | Intelligent mobile phone charger with self turn-off function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202906501U true CN202906501U (en) | 2013-04-24 |
Family
ID=48127124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220432321 Expired - Fee Related CN202906501U (en) | 2012-08-29 | 2012-08-29 | Intelligent mobile phone charger with self turn-off function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202906501U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904510A (en) * | 2014-04-15 | 2014-07-02 | 上海电力学院 | Mobile phone security charging socket and work method thereof |
| CN103986040A (en) * | 2014-05-27 | 2014-08-13 | 上海电力学院 | Automatic power-off type USB charging connecting wire and application thereof |
| CN105391434A (en) * | 2015-12-10 | 2016-03-09 | 湖南福德电气有限公司 | Intelligent switch circuit capable of disconnecting fully-charged charging load |
| WO2019119291A1 (en) * | 2017-12-20 | 2019-06-27 | 深圳市大疆创新科技有限公司 | Power-on slow start device, battery assembly, unmanned aerial vehicle and power-on slow start method |
-
2012
- 2012-08-29 CN CN 201220432321 patent/CN202906501U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904510A (en) * | 2014-04-15 | 2014-07-02 | 上海电力学院 | Mobile phone security charging socket and work method thereof |
| CN103986040A (en) * | 2014-05-27 | 2014-08-13 | 上海电力学院 | Automatic power-off type USB charging connecting wire and application thereof |
| CN105391434A (en) * | 2015-12-10 | 2016-03-09 | 湖南福德电气有限公司 | Intelligent switch circuit capable of disconnecting fully-charged charging load |
| WO2019119291A1 (en) * | 2017-12-20 | 2019-06-27 | 深圳市大疆创新科技有限公司 | Power-on slow start device, battery assembly, unmanned aerial vehicle and power-on slow start method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20180269701A1 (en) | Energy-saving charger capable of automatically powering off | |
| CN103683400B (en) | Based on wireless charging control method and the system of NFC | |
| CN101938154B (en) | Terminal charging method, device and system | |
| CN202906501U (en) | Intelligent mobile phone charger with self turn-off function | |
| CN105071506A (en) | Charger with automatic cut-off function and using method thereof | |
| CN201312131Y (en) | Cell phone charging circuit and cell phone battery charging system | |
| CN102290688B (en) | Energy-saving socket favorable for realizing zero power consumption in standby or off state of external load | |
| CN204167974U (en) | A kind of can timing and be full of the electric car charger of rear two isolation | |
| CN205004814U (en) | Auto -power -off function charger has | |
| CN205070589U (en) | Multi -functional ACDC converting means | |
| CN203039400U (en) | Novel quick charging multipurpose mobile power supply | |
| CN205960679U (en) | Battery is full of protection circuit and charger | |
| CN105207331A (en) | Mobile terminal charging circuit and mobile terminal | |
| CN202340141U (en) | Charging equipment | |
| CN2560148Y (en) | Electric intelligent protecting & long controlling system | |
| CN208874002U (en) | A kind of intelligent charge socket | |
| CN201975838U (en) | Wireless charger | |
| CN104362708A (en) | Device for detecting mobile phone charging | |
| CN203261057U (en) | Novel numerical control charger | |
| CN202179044U (en) | Aquaculture automatic feeding device based on short message platform | |
| CN201829997U (en) | Intelligent mobile-phone charger circuit | |
| CN104852426A (en) | Solar-based smart watch charging base | |
| CN205265229U (en) | Electrical load safety protection system | |
| CN204334089U (en) | A kind of mobile phone charged state display unit | |
| CN201051677Y (en) | A portable mobile phone charger |
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: 20130424 Termination date: 20130829 |