CN105429666A - Mobile terminal and cell reset circuit - Google Patents
Mobile terminal and cell reset circuit Download PDFInfo
- Publication number
- CN105429666A CN105429666A CN201510719371.XA CN201510719371A CN105429666A CN 105429666 A CN105429666 A CN 105429666A CN 201510719371 A CN201510719371 A CN 201510719371A CN 105429666 A CN105429666 A CN 105429666A
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- battery
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- electrically connected
- reset circuit
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- 238000001514 detection method Methods 0.000 claims abstract description 53
- 230000001681 protective effect Effects 0.000 claims description 11
- 238000005516 engineering process Methods 0.000 description 4
- 239000011449 brick Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a mobile terminal and a cell reset circuit. The cell reset circuit comprises a cell control chip, a reset resistor, a cell connector and a reset signal provider, wherein the cell control chip comprises a reset pin used for controlling cell reset; one end of the reset resistor is in electric connection with the reset pin of the cell control chip, and the other end is in electric connection with the detection pin of the cell connector; the detection pin of the cell connector is also in electric connection with the reset signal provider; the reset signal provider sends a reset voltage to the rest pin through the detection pin when receiving a reset request so as to control cell rest. According to the mode, the mobile terminal and the cell reset circuit can realize cell rest under the condition of not occupying the space of a mainboard.
Description
Technical field
The present invention relates to field of terminal technology, especially relate to a kind of mobile terminal and battery reset circuit.
Background technology
The mobile terminal of internal battery, such as mobile phone, because battery cannot be dismantled, cell phone system likely enters certain abnormality and can not recover.Power down function is possessed in order to make the mobile phone of internal battery; in prior art; battery protection control chip (IC) has possessed special reset and has controlled pin; as long as provide a high level to this control pin; namely can trigger the battery core power-off of battery, thus play the function of battery reset.
But battery protection control IC is inner in power brick, if reset will be controlled pin to be connected to cell phone system; usual needs increase a joint on battery connector; this is incompatible with conventional battery connector, also can increase the size of connector, occupy motherboard space.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of mobile terminal and battery reset circuit, can realize the reset of battery when not increasing space.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of battery reset circuit, this battery reset circuit comprises battery control chip, reset resistor, battery connector and reset signal generator, wherein: battery control chip comprises reset pin, for controlling the reset of battery; One end of reset resistor is electrically connected with the reset pin of battery control chip, the other end is electrically connected with the detection pin of battery connector, the detection pin of battery connector is also electrically connected with reset signal generator further, reset signal generator sends resetting voltage by detecting pin to reset pin when receiving reset request, resets to control battery.
Wherein, resetting voltage is more than or equal to 0.9 times of cell voltage.
Wherein, battery reset circuit comprises further: detect resistance, the junction that the other end that the one end detecting resistance is connected to reset resistor is connected with the one end detecting pin, detects the other end ground connection of resistance.
Wherein, detect temperature detection pin or battery ID detection pin that pin is battery connector, detect resistance and correspond to temperature detection resistance or battery ID detection resistance.
Wherein, battery reset circuit comprises bias voltage generator further, the input of bias voltage generator receives a reference voltage preset, the output of bias voltage generator is electrically connected with the other end detecting pin, after the system of battery access mobile terminal, the output of bias voltage generator provides a bias voltage to detection pin, and with the testing of open detection pin, wherein bias voltage is less than resetting voltage.
Wherein, bias voltage generator comprises a biasing resistor, and one end of biasing resistor is electrically connected with reference voltage generator, and to receive reference voltage, the other end of biasing resistor is electrically connected with the other end detecting pin.
Wherein, battery reset circuit comprises MCU chip further, and it comprises ADC pin, and ADC pin is electrically connected with the other end detecting pin, for detecting the working condition of pin.
Wherein, battery reset circuit comprises protection switch pipe and protective resistance further, reset signal generator comprises reset switch, wherein: the input of reset switch is electrically connected with battery, to receive the cell voltage that battery provides, the control end of reset switch receives reset request, and the output of reset switch is electrically connected with the control end of protection switch pipe and the other end that detects pin respectively; The control end of protection switch pipe is electrically connected with one end of protective resistance further; the other end ground connection of protective resistance; the input electrical connection ADC pin of MCU of protection switch pipe and the other end of biasing resistor, the output electrical connection of protection switch pipe detects the other end of pin.
Wherein, reset switch is single-pole double-throw switch (SPDT), comprises two outputs, and when the control end of reset switch receives reset request, reset switch closes to provide cell voltage to the control end of protection switch pipe and the other end detecting pin; Protection switch pipe is PMOS, and wherein the control end of protection switch pipe is the grid of PMOS, and input is the source electrode of PMOS, and output is the drain electrode of PMOS.
For solving the problems of the technologies described above, another technical solution used in the present invention is: provide a kind of mobile terminal, and this mobile terminal comprises battery and battery reset circuit above.
The invention has the beneficial effects as follows: the situation being different from prior art, battery reset circuit of the present invention comprises battery control chip, reset resistor, battery connector and reset signal generator, wherein: battery control chip comprises reset pin, for controlling the reset of battery; One end of reset resistor is electrically connected with the reset pin of battery control chip, the other end is electrically connected with the detection pin of battery connector, the detection pin of battery connector is also electrically connected with reset signal generator further, reset signal generator sends resetting voltage by detecting pin to reset pin when receiving reset request, resets to control battery.Therefore, the present invention can realize the reset of battery when not increasing motherboard space.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of battery reset circuit that the embodiment of the present invention provides.
Embodiment
Refer to Fig. 1, Fig. 1 is the structural representation of a kind of battery reset circuit that the embodiment of the present invention provides.As shown in Figure 1, battery reset circuit 10 of the present invention comprises battery control chip 11, reset resistor 12, battery connector 13 and reset signal generator 14.Wherein, battery control chip 11 comprises reset pin 111, for controlling the reset of battery.One end of reset resistor 12 is electrically connected with the reset pin 111 of battery control chip 11, the other end is electrically connected with the detection pin 131 of battery connector 13, the detection pin 131 of battery connector 13 is also electrically connected with reset signal generator 14 further, reset signal generator 14 sends resetting voltage by detecting pin 131 to reset pin 111 when receiving reset request, resets to control battery.Wherein, this resetting voltage is more than or equal to 0.9 times of cell voltage.The resistance of reset resistor 12 is preferably 10K.
Battery reset circuit 10 comprises detection resistance 132 further.The junction that the other end that the one end detecting resistance 132 is connected to reset resistor 12 is connected with the one end detecting pin 131, detects the other end ground connection of resistance 132.
Further, battery connector 13 also comprises detection pin 133 and detects resistance 134.Detect pin 133 to be electrically connected with the one end detecting resistance 134, detect the other end ground connection of resistance 134.
In the present embodiment, detect the temperature detection pin that pin 131 is battery connector 13, detect resistance 132 and correspond to temperature detection resistance.Detect pin 133 and detect pin for battery ID, detect resistance 134 and correspond to battery ID detection resistance.That is, in the present embodiment, reset resistor 12 is in parallel with temperature detection resistance 132.
In other embodiments, reset resistor 12 also can to detect resistance 133 in parallel with battery ID.Namely detect the battery ID detection pin that pin 131 is battery connector 13, detect resistance 132 and correspond to battery ID detection resistance.Detecting pin 133 is temperature detection, detects resistance 133 and corresponds to temperature detection resistance.
Further, battery connector 13 also comprises battery terminal connections mouth 135, and battery connecting interface 135, for being connected with battery, accesses mobile terminal system to make battery.
Further, battery reset circuit 10 also comprises bias voltage generator 15, the input of bias voltage generator 15 receives a reference voltage vref preset, the output of bias voltage generator 15 is electrically connected with the other end detecting pin 131, after the system of battery access mobile terminal, the output of bias voltage generator 15 provides a bias voltage to detection pin 131, and with the testing of open detection pin 131, wherein bias voltage is less than resetting voltage.Therefore, battery can not be triggered reset.
Bias voltage generator 15 comprises a biasing resistor 151, and one end of biasing resistor 151 is electrically connected with reference voltage generator (not shown), and to receive reference voltage, the other end of biasing resistor 151 is electrically connected with the other end detecting pin 131.Concrete, one end of biasing resistor 151 is electrically connected with outside reference voltage generator by a connectivity port 152.Wherein, the resistance of biasing resistor 151 is preferably 10K.
Further, battery reset circuit 10 also comprises MCU chip 16, and it comprises ADC (Analog-to-DigitalConverter, analog to digital converter) pin 161, ADC pin 161 is electrically connected with the other end detecting pin 131, for detecting the working condition of pin 131.Concrete, obtain temperature information or id information by reading the voltage detecting pin 131.
Further, battery reset circuit 10 also comprises protection switch pipe 17 and protective resistance 18, and reset signal generator 14 comprises reset switch 141.Wherein, the input of reset switch 141 is electrically connected with battery, to receive the cell voltage that battery provides, concrete, and the input of reset switch 141 is electrically connected with battery by a battery terminal connections mouth 142.The control end of reset switch 141 receives reset request, and the output of reset switch 141 is electrically connected with the control end of protection switch pipe 17 and 131 other ends that detect pin respectively.The control end of protection switch pipe 17 is electrically connected with one end of protective resistance 18 further, the other end ground connection of protective resistance 18.The input electrical connection ADC pin 161 of MCU chip 16 of protection switch pipe 17 and the other end of biasing resistor 151, the output electrical connection of protection switch pipe 17 detects the other end of pin 131.Wherein, the resistance of protective resistance 18 is preferably 10K.
Wherein, reset switch 141 is single-pole double-throw switch (SPDT); comprise two outputs, when the control end of reset switch 141 receives reset request, reset switch 141 is closed to provide cell voltage to the control end of protection switch pipe 17 and the other end detecting pin 131.Now, the voltage that reset pin 111 is received by detection pin 131 is cell voltage, and the battery that can set out resets.
Protection switch pipe 17 is PMOS, and wherein the control end of protection switch pipe 17 is the grid of PMOS, and input is the source electrode of PMOS, and output is the drain electrode of PMOS.Therefore; when reset switch 141 provides the control end of cell voltage to protection switch pipe 17; cell voltage draws high the grid potential of protection switch pipe 17 to cell voltage; protection switch pipe 17 pipe disconnects; thus the effect playing a protective role, isolate; avoid high voltage, namely cell voltage produces with ADC chip 16 and bias voltage generator 15 and conflicts.Contrary; when reset switch 141 does not provide voltage to the control end of protection switch pipe 17; the drop-down maintenance conducting state of the protected resistance of control end 18 of protection switch pipe 17; then bias voltage generator 15 can provide bias voltage to detection pin 131, and ADC pin 161 also normally can detect the working condition of pin 131.
In the present embodiment, when battery does not access the system of mobile terminal, reset pin 111 temperature detection resistance connect or battery ID detect resistance can play drop-down effect, keeps level signal to stablize, homing action can not occur.
The present invention also provides a kind of mobile terminal, and this mobile terminal comprises battery and battery reset circuit, and wherein battery reset circuit is previously described battery reset circuit 10.
In sum; the present invention does not change the definition of battery connector 13; by temperature detection pin or the battery ID detection pin of multiplexing battery connector 13, the reset pin 111 of battery protection control chip 11 is attempted by by the reset resistor 12 of 10K and is detected on resistance by battery control chip 11, reset resistor 12, the temperature detection resistance detecting power brick 100 inside that resistance 131 and 132 forms or battery ID.Reset function is achieved when not occupying motherboard space.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a battery reset circuit, is characterized in that, described battery reset circuit comprises battery control chip, reset resistor, battery connector and reset signal generator, wherein:
Described battery control chip comprises reset pin, for controlling the reset of described battery;
One end of described reset resistor is electrically connected with the reset pin of described battery control chip, the other end is electrically connected with the detection pin of described battery connector, the detection pin of described battery connector is also electrically connected with described reset signal generator further, described reset signal generator sends resetting voltage by described detection pin to described reset pin when receiving reset request, resets to control described battery.
2. battery reset circuit according to claim 1, is characterized in that, described resetting voltage is more than or equal to 0.9 times of cell voltage.
3. battery reset circuit according to claim 1, is characterized in that, described battery reset circuit comprises further:
Detect resistance, the junction that the other end that one end of described detection resistance is connected to described reset resistor is connected with one end of described detection pin, the other end ground connection of described detection resistance.
4. battery reset circuit according to claim 3, is characterized in that, described detection pin is temperature detection pin or the battery ID detection pin of described battery connector, and described detection resistance corresponds to temperature detection resistance or battery ID detects resistance.
5. battery reset circuit according to claim 3, it is characterized in that, described battery reset circuit comprises bias voltage generator further, the input of described bias voltage generator receives a reference voltage preset, the output of described bias voltage generator is electrically connected with the other end of described detection pin, access the system of described mobile terminal at described battery after, the output of described bias voltage generator provides a bias voltage to described detection pin, to open the testing of described detection pin, wherein said bias voltage is less than described resetting voltage.
6. battery reset circuit according to claim 5, it is characterized in that, described bias voltage generator comprises a biasing resistor, one end of described biasing resistor is electrically connected with reference voltage generator, to receive described reference voltage, the other end of described biasing resistor is electrically connected with the other end of described detection pin.
7. battery reset circuit according to claim 6, it is characterized in that, described battery reset circuit comprises MCU chip further, and it comprises ADC pin, described ADC pin is electrically connected with the other end of described detection pin, for detecting the working condition of described detection pin.
8. battery reset circuit according to claim 7, is characterized in that, described battery reset circuit comprises protection switch pipe and protective resistance further, and described reset signal generator comprises reset switch, wherein:
The input of described reset switch is electrically connected with battery, to receive the cell voltage that described battery provides, the control end of described reset switch receives described reset request, and the output of described reset switch is electrically connected with the control end of described protection switch pipe and the other end of described detection pin respectively;
The control end of described protection switch pipe is electrically connected with one end of described protective resistance further; the other end ground connection of described protective resistance; the input of described protection switch pipe is electrically connected the ADC pin of described MCU chip and the other end of described biasing resistor, and the output of described protection switch pipe is electrically connected the other end of described detection pin.
9. battery reset circuit according to claim 8, it is characterized in that, described reset switch is single-pole double-throw switch (SPDT), comprise two outputs, when the described control end of described reset switch receives described reset request, described reset switch closes to provide described cell voltage to the control end of described protection switch pipe and the other end of described detection pin;
Described protection switch pipe is PMOS, and the control end of wherein said protection switch pipe is the grid of described PMOS, and input is the source electrode of described PMOS, and output is the drain electrode of described PMOS.
10. a mobile terminal, is characterized in that, described mobile terminal comprises battery and the battery reset circuit described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510719371.XA CN105429666B (en) | 2015-10-28 | 2015-10-28 | Mobile terminal and battery reset circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510719371.XA CN105429666B (en) | 2015-10-28 | 2015-10-28 | Mobile terminal and battery reset circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105429666A true CN105429666A (en) | 2016-03-23 |
| CN105429666B CN105429666B (en) | 2019-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510719371.XA Active CN105429666B (en) | 2015-10-28 | 2015-10-28 | Mobile terminal and battery reset circuit |
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| CN (1) | CN105429666B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106445060A (en) * | 2016-09-19 | 2017-02-22 | 惠州Tcl移动通信有限公司 | Method and system for supply voltage restoration of mobile terminal and mobile terminal |
| CN108235180A (en) * | 2017-12-12 | 2018-06-29 | 南京中感微电子有限公司 | A kind of Bluetooth circuit |
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| CN102289257A (en) * | 2011-08-15 | 2011-12-21 | 上海新虹伟信息技术有限公司 | Main board interface circuit of police identity recognizer |
| US20120038397A1 (en) * | 2010-08-10 | 2012-02-16 | Samsung Electronics Co. Ltd. | Method and apparatus of resetting mobile device |
| CN102685281A (en) * | 2012-03-28 | 2012-09-19 | 惠州Tcl移动通信有限公司 | Mobile terminal equipment |
| CN202652331U (en) * | 2012-07-19 | 2013-01-02 | 上海斐讯数据通信技术有限公司 | System for resetting halted system |
| CN103078363A (en) * | 2012-12-13 | 2013-05-01 | 广东欧珀移动通信有限公司 | Battery cell identification circuit and identification method thereof |
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2015
- 2015-10-28 CN CN201510719371.XA patent/CN105429666B/en active Active
Patent Citations (5)
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| US20120038397A1 (en) * | 2010-08-10 | 2012-02-16 | Samsung Electronics Co. Ltd. | Method and apparatus of resetting mobile device |
| CN102289257A (en) * | 2011-08-15 | 2011-12-21 | 上海新虹伟信息技术有限公司 | Main board interface circuit of police identity recognizer |
| CN102685281A (en) * | 2012-03-28 | 2012-09-19 | 惠州Tcl移动通信有限公司 | Mobile terminal equipment |
| CN202652331U (en) * | 2012-07-19 | 2013-01-02 | 上海斐讯数据通信技术有限公司 | System for resetting halted system |
| CN103078363A (en) * | 2012-12-13 | 2013-05-01 | 广东欧珀移动通信有限公司 | Battery cell identification circuit and identification method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106445060A (en) * | 2016-09-19 | 2017-02-22 | 惠州Tcl移动通信有限公司 | Method and system for supply voltage restoration of mobile terminal and mobile terminal |
| CN108235180A (en) * | 2017-12-12 | 2018-06-29 | 南京中感微电子有限公司 | A kind of Bluetooth circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105429666B (en) | 2019-08-23 |
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Effective date of registration: 20230522 Address after: Room 501, 85 Xiaguang Dongli, Haicang District, Xiamen City, Fujian Province, 361000 Patentee after: Xiamen reliable intellectual property service Co.,Ltd. Address before: 516006 Zhongkai hi tech Zone, Huizhou, Guangdong, 86 Chang seven Road West Patentee before: HUIZHOU TCL MOBILE COMMUNICATION Co.,Ltd. |
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Effective date of registration: 20230720 Address after: 622, No. 1, Langrong Road, Xinshi Community, Dalang Street, Longhua District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen Bangsheng Energy Technology Co.,Ltd. Address before: Room 501, 85 Xiaguang Dongli, Haicang District, Xiamen City, Fujian Province, 361000 Patentee before: Xiamen reliable intellectual property service Co.,Ltd. |
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Effective date of registration: 20240418 Address after: 518000, Room 401, 403, 4th Floor, Building C, B14, Baihua Village, Guangming Street, Guangming New District, Shenzhen, Guangdong Province, China Patentee after: Shenzhen Jialexu Technology Co.,Ltd. Country or region after: China Address before: 622, No. 1, Langrong Road, Xinshi Community, Dalang Street, Longhua District, Shenzhen, Guangdong 518000 Patentee before: Shenzhen Bangsheng Energy Technology Co.,Ltd. Country or region before: China |