CN104037734A - Charging protection device for intelligent terminal, and intelligent terminal - Google Patents
Charging protection device for intelligent terminal, and intelligent terminal Download PDFInfo
- Publication number
- CN104037734A CN104037734A CN201310068019.5A CN201310068019A CN104037734A CN 104037734 A CN104037734 A CN 104037734A CN 201310068019 A CN201310068019 A CN 201310068019A CN 104037734 A CN104037734 A CN 104037734A
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- Prior art keywords
- intelligent terminal
- module
- protection device
- pmos pipe
- charging
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Classifications
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- 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
- H02J7/0034—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using reverse polarity correcting or protecting circuits
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
- H01L27/0203—Particular design considerations for integrated circuits
- H01L27/0248—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection
- H01L27/0251—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection for MOS devices
- H01L27/0266—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection for MOS devices using field effect transistors as protective elements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
-
- 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
- H02J7/00308—Overvoltage protection
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- 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
- H02J7/00302—Overcharge protection
Abstract
The invention discloses a charging protection device for an intelligent terminal, and an intelligent terminal. The charging protection device is connected between a charger and a charging port of the intelligent terminal, and comprises: an anti-reverse plug protection module, a voltage-dividing and routing module, and an end switch module. The anti-reverse plug protection module is used for blocking an output end of the charger and the voltage-dividing and routing module when the output end of the charger is reversely plugged. The voltage-dividing and routing module is used for routing to a blocking circuit of the end switch module and disconnecting a charging closed circuit when the charging closed circuit is at an overvoltage state. When the output end of the charger is reversely plugged or the charging closed circuit is at the overvoltage state, the charging protection device disconnects the charging closed circuit to realize anti-reverse plug protection, overvoltage protection and anti-intrusion protection, and otherwise, the charging protection device connects the charging closed circuit to realize normal charging. By using the apparatus and the intelligent terminal provided by the present invention, the cost can be saved, the security and the reliability of charging of the intelligent terminal can be improved, and the service life of a battery of the intelligent terminal and even the service life of the intelligent terminal itself can be prolonged.
Description
Technical field
The present invention relates to the intelligent terminal communication technology, relate in particular to a kind of intelligent terminal charge protection device and intelligent terminal.
Background technology
Along with the develop rapidly of the communication technology, intelligent terminal such as Touch, smart mobile phone, panel computer etc. are popularized gradually, and very popular in the world.And the common problem that uses these intelligent terminals is to charge to its internal cell.
For the consideration of favorable compatibility, the charger interface of most intelligent terminals is all designed to USB interface, and this just may cause user in the time using different intelligent end product, by each charger mutually with or misuse.And for different intelligent terminal, its charger output voltage is different.If there is overvoltage (being the range of nominal tension that charger output voltage exceeds intelligent terminal battery) or anti-plug (being charger and intelligent terminal reverse polarity connection) in charging process, even in the time of anti-plug, follow electric current to pour in down a chimney (hereinafter to be referred as pouring in down a chimney) phenomenon, these all can cause charger output voltage abnormal, thereby damage charging path, or affect battery even useful life of intelligent terminal.
Prior art one is to add diode in charging path, as shown in Figure 1.Wherein, the output voltage that VIN is charger, the output voltage that VOUT is this charge protector, D1 is diode.Sort circuit can simple realization inverse plugging, reverse-filling defencive function, but has the following disadvantages: the one, and due to the existence of diode drop, make the actual charging voltage of intelligent terminal far below charger output voltage, reduce charge efficiency; The 2nd, in the time there is overvoltage in charging process, do not possess overvoltage protection ability, thereby cause the damage to intelligent terminal.
Prior art two is by adding special overvoltage protection chip to realize the protection to intelligent terminal charging port, as shown in Figure 2.Wherein, the output voltage that VIN is charger, the output voltage that VOUT is this charge protector.Sort circuit can be realized over-voltage protecting function, but additional overvoltage protection chip can raise the cost and not possess inverse plugging, reverse-filling defencive function.
Summary of the invention
In view of this; main purpose of the present invention is to provide a kind of intelligent terminal charge protection device and intelligent terminal; possess inverse plugging protection, overvoltage protection and reverse-filling defencive function simultaneously; improve fail safe and the reliability of intelligent terminal charging, extend intelligent terminal battery and even the useful life of itself.
For achieving the above object, the invention provides a kind of intelligent terminal charge protection device, described device comprises: inverse plugging protection module, dividing potential drop route selection module, the end switch module of serial connection successively, described end switch module comprises blocking circuit and gating circuit; Wherein:
Inverse plugging protection module, is arranged between charger output and dividing potential drop route selection module, for when the charger output anti-plug, and blocking-up charger output and dividing potential drop route selection module;
Dividing potential drop route selection module, in the time charging path overvoltage, is routed to the blocking circuit of end switch module, disconnects charging path; Charger output not anti-plug and charging path not when overvoltage, be routed to the gating circuit of end switch module, connect charging path.
Preferably, described end switch module, is also used to charging path that reverse-filling protection is provided.
Described inverse plugging protection module comprises the 3rd diode, and the anodic bonding of the 3rd diode is to charger output, and negative electrode is connected to division module.
Preferably, described dividing potential drop route selection module comprises the first resistance, the second resistance, the 3rd resistance, the first N-type metal-oxide semiconductor (MOS) NMOS pipe, the 2nd NMOS pipe and the 3rd P-type mos PMOS pipe, wherein first resistance one end is connected to the output of inverse plugging protection module, the other end is connected to one end of the second resistance, second resistance one end is connected to the first resistance, other end ground connection, the 3rd resistance one end is connected to the output of inverse plugging protection module, the drain electrode of the other end and a NMOS pipe, the grid of the grid of the 2nd NMOS pipe and the 3rd PMOS pipe connects, the grid of the one NMOS pipe is connected to first, between the second resistance, source ground, the drain electrode of the 2nd NMOS pipe is connected with the drain electrode of the 3rd PMOS pipe, source ground, the source electrode of the 3rd PMOS pipe is connected to charger output.
Preferably, described end switch module comprises a PMOS pipe and the 2nd PMOS pipe, the grid of first, second PMOS pipe is all connected to the output of dividing potential drop route selection module, the source electrode of first, second PMOS pipe is connected to each other, the drain electrode of the one PMOS pipe is connected to charger output, and the drain electrode of the 2nd PMOS pipe is connected to the charging port of intelligent terminal.
Preferably, a described PMOS pipe and the 2nd PMOS pipe, comprise respectively first, second diode, the back-to-back mated condition of first, second diode in reverse-filling.
Described dividing potential drop route selection module, in the time of the overvoltage of charging path, is routed to the blocking circuit of end switch module, disconnects charging path, comprising:
When the overvoltage of charging path, first, second electric resistance partial pressure makes a NMOS pipe conducting, the 2nd NMOS pipe, the 3rd gate pmos utmost point are pulled to low level, the 2nd NMOS pipe cut-off, the 3rd PMOS pipe conducting, and between the grid of first, second PMOS pipe, pressure drop makes first, second all cut-off of PMOS pipe.
Preferably, described dividing potential drop route selection module charger output not anti-plug and charging path not when overvoltage, be routed to the gating circuit of end switch module, connect charging path, comprising:
At not anti-plug and charging path not when overvoltage of charger output, the 3rd diode current flow, first, second electric resistance partial pressure makes a NMOS pipe cut-off, the drain electrode of the one NMOS pipe is high level, the voltage at the 3rd resistance place makes the 2nd NMOS pipe conducting, the 3rd PMOS pipe cut-off, the grid of first, second PMOS pipe is pulled to low level, and first, second PMOS manages equal conducting.
In addition, the present invention also provides a kind of intelligent terminal, is provided with charge protection device as above in described intelligent terminal.
Preferably, described intelligent terminal is personal digital assistant PDA, PC, panel computer, mobile phone, video telephone, game machine, electron album, video conference terminal.
Technical solution of the present invention makes inverse plugging protection module, dividing potential drop route selection module and the end switch module effective each self-applying of performance in charge protection device, has realized the control to intelligent terminal charging, and protection in anti-plug, overvoltage and while pouring in down a chimney.Compared with prior art, technical solution of the present invention has been saved cost, has improved fail safe and the reliability of intelligent terminal charging, has extended the useful life of intelligent terminal battery and even intelligent terminal.
Brief description of the drawings
Fig. 1 is the charge protector of prior art one;
Fig. 2 is the charge protector of prior art two;
Fig. 3 is the structure connection layout of the charge protection device of the embodiment of the present invention;
Fig. 4 is the charging flow schematic diagram of the charge protection device of the embodiment of the present invention;
Fig. 5 is the charge protection device corresponding circuits figure of the embodiment of the present invention;
Fig. 6 is the charging flow schematic diagram of the charge protection device corresponding circuits of the embodiment of the present invention.
Embodiment
Lower mask body is described in detail the present invention in conjunction with the drawings and the specific embodiments.
Fig. 3 is the structure connection layout of the charge protection device of the embodiment of the present invention; as shown in Figure 3; this charge protection device is connected between charger output 31 and intelligent terminal charging port 35; comprise inverse plugging protection module 32, dividing potential drop route selection module 33 and the end switch module 34 of serial connection successively, wherein:
Inverse plugging protection module 32, be arranged between charger output 31 and dividing potential drop route selection module 33, for in the time of charger and intelligent terminal reverse polarity connection (being anti-plug), directly blocking-up and being connected of dividing potential drop route selection module 33, because the path that now charges is blocked, dividing potential drop route selection module 33 no currents are flowed through, and therefore there will not be overvoltage; And in the time of anti-plug not, connect being connected of inverse plugging protection module 32 and dividing potential drop route selection module 33.
Dividing potential drop route selection module 33, be arranged between inverse plugging protection module 32 and end switch module 34, for in the time that charger output voltage exceeds the range of nominal tension (being overvoltage) of intelligent terminal battery, be routed to the blocking circuit of end switch module 34 by dividing potential drop effect, disconnect charging path; Charger output not anti-plug and charging path not when overvoltage, be routed to equally the gating circuit of end switch module 34 by dividing potential drop effect, connect charging path.As can be seen here, the effect of dividing potential drop is by routing, finally realizes end switch module 34 to abnormal charge protection or the controllability that charges normal.
End switch module 34, is arranged between dividing potential drop route selection module 33 and intelligent terminal charging port 35.End switch module 34 comprises blocking circuit and gating circuit, for according to the above-mentioned situation of inverse plugging protection module 32, dividing potential drop route selection module 33, finally realizes disconnection or the connection of charging path.When not anti-plug and while charging path overvoltage, dividing potential drop route selection module 33 is routed to the blocking circuit of end switch module 34 of charger output, charging path disconnects; Otherwise anti-plug and charging path be not when overvoltage when charger output, charging path is connected.In addition, the architectural feature of this module is also for charging path provides reverse-filling defencive function.
Fig. 4 is the charging flow schematic diagram of the charge protection device of the embodiment of the present invention, and as shown in Figure 4, the charging flow of the charge protection device of the embodiment of the present invention comprises the following steps:
Step 401: after charger connects intelligent terminal by charge protection device, first charge protection device checks the normality of charger, comprises anti-plug and overvoltage.
Step 402: judge whether anti-plug of charger.If anti-plug, performs step 404; Otherwise, execution step 403;
Step 403: judge whether overvoltage of charger.If overvoltage, performs step 404; Otherwise, execution step 405;
Step 404: charge protection device disconnects charging path;
Step 405: charge protection device is connected charging path, and execution charges normal.
Fig. 5 is the charge protection device corresponding circuits figure of the embodiment of the present invention, as shown in Figure 5, and the output voltage that VIN is charger, the output voltage that VOUT is this charge protector.
Inverse plugging protection module 51 comprises the 3rd diode D3, its anodic bonding charger output, and negative electrode is connected to division module.
Dividing potential drop route selection module 52 comprises the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the first N-type metal-oxide semiconductor (MOS) NMOS pipe N1, the 2nd NMOS pipe N2 and the 3rd P-type mos PMOS pipe P3, wherein R1 one end connects the output of inverse plugging protection module, the other end is connected to one end of R2, R2 one end connects R1, other end ground connection, R3 one end connects the output of inverse plugging protection module, the drain electrode of the other end and N1, the grid of N2 and the grid of P3 are connected, the grid of N1 is connected to R1, between R2, source ground, the drain electrode of N2 is connected with the drain electrode of P3, source ground, the source electrode of P3 is connected to charger output.
End switch module 53 comprises a PMOS pipe P1 and the 2nd PMOS pipe P2, P1, P2 form described blocking circuit and gating circuit, the grid of P1, P2 is all connected to the output of dividing potential drop route selection module 52, the source electrode of P1, P2 is connected to each other, the drain electrode connecting charger output of P1, the drain electrode of P2 is connected to the charging port of intelligent terminal.In the time occurring that high level makes P1, P2 cut-off, between VIN and VOUT, do not form path, therefore claim blocking circuit; In the time occurring that low level makes P1, P2 conducting, between VIN and VOUT, form path, therefore claim gating circuit.
Structure is as shown in Figure 5 known, N2, P3 composition push-pull configuration in dividing potential drop route selection module 52, make N2, P3 cut-off or the conducting of this push-pull configuration by R1, R2 dividing potential drop, further realize again cut-off or the conducting of P1, P2 in end switch module 53 by routing, finally realize the abnormal charge protection of intelligent terminal or charge normal: in the time that P1, P2 end, nonpassage between VIN and VOUT, charger does not charge; In the time of P1, P2 conducting, between VIN and VOUT, form path, the output of charger is connected the charging port of intelligent terminal, charges.In addition, the parasitic diode D1 of P1, P2, the negative electrode of D2 are connected together, in state back-to-back, to ensure that when P1 and the P2 cut-off, between VIN and VOUT, path cuts off completely, realizes inverse plugging, reverse-filling defencive function.
In dividing potential drop route selection module 52, choose reasonable R1, R2, only make that anti-plug and charging path be not when overvoltage at charger output, and the dividing potential drop of R2 is less than the conduction voltage drop of N1, supposes that the voltage that X is ordered is V
xthereby, realize V
xconducting to N1 or the control of cut-off.In addition; between source leakage due to N1, there is parasitic capacitance; N2 grid also have parasitic capacitance between source; R3 and this two electric capacity composition RC filter circuits; thereby in the time there is instantaneous spike in charger voltage; this voltage is filtered, and then prevent the generation of overvoltage error detection, further improved the reliability of charge protector.
Those skilled in the art are to be understood that; inverse plugging protection module 51, dividing potential drop route selection module 52 and end switch module 53 in the charge protection device of the embodiment of the present invention all have multiple circuit implementation; Fig. 5 only shows one and realizes circuit, should not be construed as the restriction to technical solution of the present invention.The resistance of resistance in foregoing circuit, can need cut-ff voltage and need the size of conducting voltage to set according to the corresponding circuits of above-mentioned charge protection device, and the present invention does not limit its concrete value.
Fig. 6 is the charging flow schematic diagram of the charge protection device corresponding circuits of the embodiment of the present invention, describes in detail below in conjunction with Fig. 5 and Fig. 6.
Charge normal implementation process: after charger connects intelligent terminal by charge protector, if not anti-plug and charging path not when overvoltage of charger output, from the above mentioned, D3 conducting, after R1, R2 dividing potential drop, V
xbe less than the conduction voltage drop of N1, N1 cut-off, thus the drain electrode of N1 is high level, the voltage V that the Y of R3 place is ordered
yfor VIN-V
d(V
dfor the conduction voltage drop of D3), thus N2 conducting, P3 cut-off, like this, the grid of P1, P2 is pulled to low level and conducting forms path between the charging port VOUT of charger output VIN and intelligent terminal, and intelligent terminal is carried out to normal charge function.
The implementation process of inverse plugging and reverse-filling protection: after charger is connected intelligent terminal by charge protector, if charger anti-plug, VIN is negative pressure, D3 oppositely ends, VIN can not form path to earth terminal, X point, Y point, Z point voltage are GND, and N1, N2 and P3 all end, and P1, P2 also end; And because parasitic diode D1, the D2 of P1, P2 are in state back-to-back; therefore at P1, between the P2 off period; between VIN and VOUT, can not form electric current and pour in down a chimney path; thereby the charge protection device corresponding circuits of the embodiment of the present invention is in realizing inverse plugging defencive function to charger; also avoided occurring that electric current pours in down a chimney phenomenon, realized the protection to intelligent terminal charging port.
The implementation process of overvoltage protection: after charger connects intelligent terminal by charge protector, if charger overvoltage, from the above mentioned, D3 conducting, after R1, R2 dividing potential drop, V
xbe greater than the conduction voltage drop of N1, at this moment N1 conducting, Y point voltage V
ydragged down, made N2 cut-off, P3 conducting, thus between the source electrode of P1, P2 and grid, pressure drop approximates VIN, thus P1, P2 cut-off, and nonpassage between VIN and VOUT, has realized over-voltage protecting function.
As can be seen here, this intelligent terminal charge protector possesses overvoltage protection, inverse plugging protection and reverse-filling protection simultaneously.
The present invention has also recorded a kind of intelligent terminal, is provided with aforesaid charge protection device in this intelligent terminal.
Intelligent terminal can be personal digital assistant (PDA), PC, panel computer, mobile phone, video telephone, game machine, electron album, video conference terminal etc.
The above, be only preferred embodiment of the present invention, is not intended to limit protection scope of the present invention.
Claims (10)
1. an intelligent terminal charge protection device, is characterized in that, described device comprises: inverse plugging protection module, dividing potential drop route selection module, the end switch module of serial connection successively, and described end switch module comprises blocking circuit and gating circuit; Wherein:
Inverse plugging protection module, is arranged between charger output and dividing potential drop route selection module, for when the charger output anti-plug, and blocking-up charger output and dividing potential drop route selection module;
Dividing potential drop route selection module, in the time charging path overvoltage, is routed to the blocking circuit of end switch module, disconnects charging path; Charger output not anti-plug and charging path not when overvoltage, be routed to the gating circuit of end switch module, connect charging path.
2. charge protection device according to claim 1, is characterized in that, described end switch module is also used to charging path that reverse-filling protection is provided.
3. charge protection device according to claim 1, is characterized in that, described inverse plugging protection module comprises the 3rd diode, and the anodic bonding of the 3rd diode is to charger output, and negative electrode is connected to division module.
4. charge protection device according to claim 3, it is characterized in that, described dividing potential drop route selection module comprises the first resistance, the second resistance, the 3rd resistance, the first N-type metal-oxide semiconductor (MOS) NMOS pipe, the 2nd NMOS pipe and the 3rd P-type mos PMOS pipe, wherein first resistance one end is connected to the output of inverse plugging protection module, the other end is connected to one end of the second resistance, second resistance one end is connected to the first resistance, other end ground connection, the 3rd resistance one end is connected to the output of inverse plugging protection module, the drain electrode of the other end and a NMOS pipe, the grid of the grid of the 2nd NMOS pipe and the 3rd PMOS pipe connects, the grid of the one NMOS pipe is connected to first, between the second resistance, source ground, the drain electrode of the 2nd NMOS pipe is connected with the drain electrode of the 3rd PMOS pipe, source ground, the source electrode of the 3rd PMOS pipe is connected to charger output.
5. charge protection device according to claim 4; it is characterized in that; described end switch module comprises a PMOS pipe and the 2nd PMOS pipe; the grid of first, second PMOS pipe is all connected to the output of dividing potential drop route selection module; the source electrode of first, second PMOS pipe is connected to each other; the drain electrode of the one PMOS pipe is connected to charger output, and the drain electrode of the 2nd PMOS pipe is connected to the charging port of intelligent terminal.
6. charge protection device according to claim 5, is characterized in that, a described PMOS pipe and the 2nd PMOS pipe, comprise respectively first, second diode, the back-to-back mated condition of first, second diode in reverse-filling.
7. charge protection device according to claim 5, is characterized in that, described dividing potential drop route selection module, in the time of the overvoltage of charging path, is routed to the blocking circuit of end switch module, disconnects charging path, comprising:
When the overvoltage of charging path, first, second electric resistance partial pressure makes a NMOS pipe conducting, the 2nd NMOS pipe, the 3rd gate pmos utmost point are pulled to low level, the 2nd NMOS pipe cut-off, the 3rd PMOS pipe conducting, and between the grid of first, second PMOS pipe, pressure drop makes first, second all cut-off of PMOS pipe.
8. charge protection device according to claim 5, is characterized in that, described dividing potential drop route selection module charger output not anti-plug and charging path not when overvoltage, be routed to the gating circuit of end switch module, connect charging path, comprising:
At not anti-plug and charging path not when overvoltage of charger output, the 3rd diode current flow, first, second electric resistance partial pressure makes a NMOS pipe cut-off, the drain electrode of the one NMOS pipe is high level, the voltage at the 3rd resistance place makes the 2nd NMOS pipe conducting, the 3rd PMOS pipe cut-off, the grid of first, second PMOS pipe is pulled to low level, and first, second PMOS manages equal conducting.
9. an intelligent terminal, is characterized in that, is provided with the charge protection device described in claim 1 to 8 any one in described intelligent terminal.
10. intelligent terminal according to claim 9, is characterized in that, described intelligent terminal is personal digital assistant PDA, PC, panel computer, mobile phone, video telephone, game machine, electron album, video conference terminal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310068019.5A CN104037734B (en) | 2013-03-04 | 2013-03-04 | Charging protection device for intelligent terminal, and intelligent terminal |
| PCT/CN2013/079734 WO2013167060A2 (en) | 2013-03-04 | 2013-07-19 | Charging protection device for intelligent terminal and intelligent terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310068019.5A CN104037734B (en) | 2013-03-04 | 2013-03-04 | Charging protection device for intelligent terminal, and intelligent terminal |
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| Publication Number | Publication Date |
|---|---|
| CN104037734A true CN104037734A (en) | 2014-09-10 |
| CN104037734B CN104037734B (en) | 2017-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310068019.5A Active CN104037734B (en) | 2013-03-04 | 2013-03-04 | Charging protection device for intelligent terminal, and intelligent terminal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104037734B (en) |
| WO (1) | WO2013167060A2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300640A (en) * | 2014-10-20 | 2015-01-21 | 上海电机学院 | Novel storage battery pack charging control circuit and method thereof |
| CN106229962A (en) * | 2016-08-11 | 2016-12-14 | 上海能埔电子有限公司 | A kind of power source reverse connection protection circuit |
| CN108695923A (en) * | 2018-05-04 | 2018-10-23 | 江苏省天珑电子科技有限公司 | A kind of charging system and electronic equipment for terminal charge |
| CN111130328A (en) * | 2018-10-31 | 2020-05-08 | 瑞昱半导体股份有限公司 | Interface circuit and method for controlling switch circuit in interface circuit |
| CN113054711A (en) * | 2021-03-29 | 2021-06-29 | 深圳市卡卓无线信息技术有限公司 | Charging circuit with multiple charging ports |
| CN113054711B (en) * | 2021-03-29 | 2024-04-19 | 深圳市卡卓无线信息技术有限公司 | Charging circuit with multiple charging ports |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4025580B2 (en) * | 2002-05-15 | 2007-12-19 | ソニー株式会社 | Charging device and control method of charging device |
| CN101174770B (en) * | 2007-11-21 | 2011-04-06 | 中兴通讯股份有限公司 | Charging protection device |
| CN101841181B (en) * | 2010-04-29 | 2013-07-17 | 隆鑫通用动力股份有限公司 | Charger |
| CN202363936U (en) * | 2011-11-29 | 2012-08-01 | 中兴通讯股份有限公司 | Terminal charging protection circuit |
| CN102624051B (en) * | 2012-03-19 | 2015-04-22 | 惠州Tcl移动通信有限公司 | Mobile phone and charging protection circuit |
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- 2013-03-04 CN CN201310068019.5A patent/CN104037734B/en active Active
- 2013-07-19 WO PCT/CN2013/079734 patent/WO2013167060A2/en active Application Filing
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300640A (en) * | 2014-10-20 | 2015-01-21 | 上海电机学院 | Novel storage battery pack charging control circuit and method thereof |
| CN106229962A (en) * | 2016-08-11 | 2016-12-14 | 上海能埔电子有限公司 | A kind of power source reverse connection protection circuit |
| CN106229962B (en) * | 2016-08-11 | 2018-10-30 | 上海能埔电子有限公司 | A kind of power source reverse connection protection circuit |
| CN108695923A (en) * | 2018-05-04 | 2018-10-23 | 江苏省天珑电子科技有限公司 | A kind of charging system and electronic equipment for terminal charge |
| CN111130328A (en) * | 2018-10-31 | 2020-05-08 | 瑞昱半导体股份有限公司 | Interface circuit and method for controlling switch circuit in interface circuit |
| CN111130328B (en) * | 2018-10-31 | 2021-12-28 | 瑞昱半导体股份有限公司 | Interface circuit and method for controlling switch circuit in interface circuit |
| CN113054711A (en) * | 2021-03-29 | 2021-06-29 | 深圳市卡卓无线信息技术有限公司 | Charging circuit with multiple charging ports |
| CN113054711B (en) * | 2021-03-29 | 2024-04-19 | 深圳市卡卓无线信息技术有限公司 | Charging circuit with multiple charging ports |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104037734B (en) | 2017-04-26 |
| WO2013167060A2 (en) | 2013-11-14 |
| WO2013167060A3 (en) | 2014-02-06 |
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