CN203761085U - Mobile power source with over-voltage, under-voltage, over-current and over-temperature protection functions - Google Patents
Mobile power source with over-voltage, under-voltage, over-current and over-temperature protection functions Download PDFInfo
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- CN203761085U CN203761085U CN201420045719.2U CN201420045719U CN203761085U CN 203761085 U CN203761085 U CN 203761085U CN 201420045719 U CN201420045719 U CN 201420045719U CN 203761085 U CN203761085 U CN 203761085U
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Abstract
The utility model relates to a mobile power source with over-voltage, under-voltage, over-current and over-temperature protection functions. The mobile power source is used for a mobile device. The mobile power source includes a lithium battery protection module (2), an MCU control module (4), a lithium battery pack (5) and an intelligent recognition control module (6); a voltage reduction module (1), the lithium battery protection module (2), a voltage boosting module (3) and the intelligent recognition control module (6) are electrically connected with one another (6) sequentially; the voltage reduction module (1) is connected with a power source; the lithium battery protection module (2) is connected with the lithium battery pack (5); the MCU control module (4) controls the voltage reduction module (1), the lithium battery protection module (2) and the voltage boosting module (3) respectively; and the intelligent recognition control module (6) is connected with the mobile device. The mobile power source of the utility model has the advantages of small size, high capacity and convenient use, and can provide multiple functions such as current limiting, over-temperature, over-voltage, under-voltage, over-current and short-circuiting protection functions, and can automatically recognize mobile digital devices of different types, and provide the same charging effect as an original charger.
Description
Technical field
The utility model relates to a kind of portable power source, especially a kind of portable power source with overvoltage, under-voltage, overcurrent, overheat protector function.
Background technology
Along with the fast development of global economy, improving constantly of people's living standard, the electronic product of carried type is also more and more, as IPAD, IPHONE, remember this computer, panel computer, other mobile phones, digital camera, video camera, portable DVD player, PDA, MP3, MP4, GPS, medical health equipment etc.But, frequent along with what use, in the charging interval of a few hours easily, the portability of these mobile digital equipment is produced to great restriction.Thus, market is increasing for the demand of portable power source.
Portable power source is a kind of portable charger that integrates power supply and charge function, and it can charge or standby power supply whenever and wherever possible to digital equipments such as mobile phones.Generally by lithium cell or dry cell as charge storage unit.The battery that is different from interiors of products configuration, is also externally hanging battery.The general multiple power sources adapter that is equipped with, conventionally there is large capacity, multipurpose, volume is little, the life-span is long and the feature such as safe and reliable, be a kind of can be whenever and wherever possible the functional product of the multiple digital product power supply such as mobile phone, MP3, MP4, mobile phone, PDA, palmtop PC, handheld device or standby charging.For portable power source, most important 2 requirements are exactly fail safe and wide usage.
Conventionally, portable power source inside has battery protecting circuit and input, the step-down of output, booster circuit, and discharging and recharging of the battery in it protected.Wherein, the function of battery protecting circuit is commonly a kind or 2 kinds in overvoltage protection, under-voltage protection, overcurrent protection, short-circuit protection and overheat protector, is not sufficient to ensure the fail safe of portable power source.
At present, mobile digital product category is on the market various, also disunity of the model of original-pack charger, cause a kind of original-pack charger can not compatible market on most of handheld device charging, as the charging device of smart mobile phone in the market all needs to identify the signal of D+ D-, if this model do not detected, the phenomenon that smart machine there will be nonrecognition not charge.Even if can charge, if the charging current of the charging current of portable power source and original-pack charger exists larger difference, also can cause the excess loss of battery of mobile phone, shorten the useful life of battery of mobile phone.
China Patent No. 201220452919.0, name is called a kind of safety moving power supply of temperature control current limliting, comprise battery module, as the charging circuit of input, the battery protecting circuit being connected with battery module and output voltage is carried out to the booster circuit of boosting rectifier control, booster circuit is connected with battery module, also comprise governor circuit, thermostat and the current-limiting circuit of external load equipment being carried out to current limliting output, current-limiting circuit is connected with booster circuit and external load equipment, governor circuit is connected with charging circuit and booster circuit respectively, governor circuit is connected with battery module by described thermostat.Safety portable power source is provided with current-limiting circuit between booster circuit and external load equipment, and when power output is too high, portable power source will disconnect work automatically, protect well its internal wiring structure; Between governor circuit and battery module, be provided with thermostat, monitoring battery module heating temperature at any time, the emergency meeting accident when product circuit and while causing battery short circuit excess Temperature, product will cut off automatically for electric flux.
China Patent No.:
201320242118.6 oneplant Portable power source, comprise movable power shell; Be arranged at rechargeable battery and circuit board in movable power shell; this circuit board comprises charging control circuit, battery core protective circuit, MCU control circuit and DC-DC booster circuit; this charging control circuit is provided with the power input that can be connected with external power source; the output of this charging control circuit is electrically connected with the input of this battery core protective circuit; this rechargeable battery is electrically connected with this battery core protective circuit; this battery core protective circuit is electrically connected with this DC-DC booster circuit, and MCU control circuit is electrically connected with this DC-DC booster circuit and this rechargeable battery respectively.The utility model can serve as the instant charge power supply of the mobile products such as mobile phone.
China Patent No.:
201320298535.2a kind of portable power source device, comprising: input interface module, for receiving the charging of external power source; Input administration module is connected with input interface module, for the outer power voltage receiving being carried out to shaping filter and carrying out step-down processing; Battery battery core module with input administration module be connected, for receiving through step-down outer power voltage after treatment so that charge; Outgoing management module is connected with battery battery core module, for completing after charging in battery battery core module, by the charging voltage processing of boosting, and the voltage after boosting is carried out to shaping filter processing using the voltage as stable output; Output interface module is connected with outgoing management module, for receiving the regulated output voltage after outgoing management resume module, using the portable power source as outside terminal equipment is charged.A kind of portable power source device provided by the utility model can be in real time also the stable exterior terminal equipment that gives power.
Therefore, need to provide a kind of portable power source that has fail safe and wide usage concurrently, in thering is multiple protective, can automatically identify the mobile digital equipment of different model, and the charging effect identical with original-pack charger is provided.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of portable power source with overvoltage, under-voltage, overcurrent, overheat protector function; have fail safe and wide usage concurrently; in thering is multiple protective; can automatically identify the mobile digital equipment of different model, and the charging effect identical with original-pack charger is provided.
The utility model solves the problems of the technologies described above taked technical scheme: one has overvoltage, under-voltage, overcurrent, the portable power source of overheat protector function, for mobile device, comprise lithium battery protection module, MCU control module, lithium battery group and Intelligent Recognition control module, sequentially voltage reduction module, lithium battery protection module, boost module and Intelligent Recognition control module are electrically connected in turn, voltage reduction module is connected with power supply, lithium battery protection module is connected with lithium battery group, MCU control module is controlled hypotension module respectively, lithium battery protection module and boost module, Intelligent Recognition control module is connected with mobile device through output.
On the basis of such scheme; described MCU control module comprises MCU control chip, MCU power supply circuits, battery capacity indication lamp, MCU charging detecting circuit and MCU discharge detection circuit; wherein; MCU power supply circuits are electrically connected with lithium battery protection module, MCU control chip and battery capacity indication lamp respectively; MCU control chip is connected with MCU power supply circuits, battery capacity indication lamp, MCU charging detecting circuit and MCU discharge detection circuit respectively; the MCU charging detecting circuit other end is connected with voltage reduction module, and the MCU discharge detection circuit other end is electrically connected with boost module.
On the basis of such scheme, described voltage reduction module comprises the input port being connected with external power supply, step-down control chip, current-limiting resistance, NTC thermistor, excess temperature detects pin pin, excess temperature regulating resistance, N-type triode and charging detecting circuit, wherein, step-down control chip respectively with input port, current-limiting resistance, NTC thermistor, excess temperature detects pin pin, excess temperature regulating resistance is connected with N-type triode, excess temperature resistance is connected with NTC thermistor, it is in parallel with NTC thermistor that excess temperature detects pin pin, excess temperature detects the pin pin other end and is connected with MCU control module, current-limiting resistance is in parallel with excess temperature regulating resistance, current-limiting resistance other end ground connection, excess temperature regulating resistance connects the collector electrode of N-type triode, the base stage of N-type triode is connected with MCU control module, the grounded emitter of N-type triode, by the conducting of MCU control module control N-type triode with close, charging detecting circuit one end is connected between power input mouth and step-down control chip, the other end is connected with MCU control circuit by being full of detection pin pin.
On the basis of such scheme, described lithium battery protection circuit comprises protection control chip and two metal-oxide-semiconductor module, and wherein, protection control chip is connected with two metal-oxide-semiconductor modules, and lithium battery group is connected with two metal-oxide-semiconductor modules with protection control chip respectively.
On the basis of such scheme, described boost module comprises boost control chip, boost resistor, regulating resistance and discharge detection circuit boost, wherein, boost control chip respectively with boost resistor and the regulating resistance that boosts, boost resistor is in parallel with the regulating resistance that boosts, the boost resistor other end is connected with the anode of output voltage, the regulating resistance other end ground connection of boosting; Discharge detection circuit one end is connected with the negative terminal of output voltage, other end ground connection, and the current sense resistor in discharge detection circuit is in parallel with discharge loop.
On the basis of such scheme, described intelligent identification module comprises Intelligent Recognition chip and output port, and Intelligent Recognition chip is connected with output port.
The utility model has the advantage of: the multi-protective functions such as current-limiting protection, overheat protector, overvoltage protection, under-voltage protection, overcurrent protection and short-circuit protection are provided; Automatically the mobile digital equipment of identification different model, and the charging effect identical with original-pack charger is provided; With line loss compensation function, ensure the stable of output voltage; Bringing onto load is not closed output voltage, energy savings automatically for a long time; LED lamp electric quantity display function, easy to use; Capacity is high, volume is little, lightweight, portable.
Brief description of the drawings
Fig. 1 is the utility model circuit module figure;
Fig. 2 is the utility model MCU control module circuit diagram;
Fig. 3 is the utility model voltage reduction module circuit diagram;
Fig. 4 is the utility model lithium battery protection module circuit diagram;
Fig. 5 is the utility model boost module circuit diagram;
Fig. 6 is the utility model intelligent identification module circuit diagram;
Attached number in the figure explanation
1---voltage reduction module;
USB---input port; U1---step-down control chip U1;
R16---current-limiting resistance; RT1---NTC thermistor;
TEMP---excess temperature detects pin pin; R7---excess temperature regulating resistance R7;
Q8---N-type triode; 11---charging detecting circuit;
CHGOVER---be full of and detect pin pin;
2---lithium battery protection module;
U20---protection control chip; U21---two metal-oxide-semiconductor modules;
3---boost module;
U3---boost control chip; R10---boost resistor R10;
R22---regulating resistance boosts; 31---discharge detection circuit 31;
R24---current sense resistor;
4---MCU control module;
U4---MCU control chip U4; 41---MCU power supply circuits;
42---battery capacity indication lamp; 43---MCU charging detecting circuit;
44---MCU discharge detection circuit;
5---lithium battery group;
6---intelligent identifying circuit;
U6---Intelligent Recognition chip U6; CON---output port;
CON1---the first output port; CON2---the second output port;
CON3---the 3rd output port; CON4---the 4th output port.
Embodiment
Referring to Fig. 1 is the utility model circuit module figure; Fig. 2 is the utility model MCU control module circuit diagram; Fig. 3 is the utility model voltage reduction module circuit diagram; Fig. 4 is the utility model lithium battery protection module circuit diagram; Fig. 5 is the utility model boost module circuit diagram; Fig. 6 is the utility model intelligent identification module circuit diagram.
As shown in Figure 1; a kind of portable power source; comprise voltage reduction module 1, lithium battery protection module 2, boost module 3, MCU control module 4, lithium battery group 5 and Intelligent Recognition control module 6; wherein; described voltage reduction module 1, lithium battery protection module 2, boost module 3 and Intelligent Recognition control module 6 are electrically connected in turn; voltage reduction module 1 is connected with power supply; lithium battery protection module 2 is connected with lithium battery group 5; MCU control module 4 is connected with voltage reduction module 1, lithium battery protection module 2 and boost module 3 respectively, and Intelligent Recognition control module 6 is connected with mobile device.
As shown in Figure 2, described MCU control module 4 comprises MCU control chip U4, MCU power supply circuits 41, battery capacity indication lamp 42, MCU charging detecting circuit 43 and MCU discharge detection circuit 44, wherein, MCU power supply circuits 41 are connected with LED lamp battery capacity indication lamp 42 with MCU control chip U4 respectively, MCU control chip U4 is connected with MCU power supply circuits 41, battery capacity indication lamp 42, MCU charging detecting circuit 43 and MCU discharge detection circuit 44 respectively, MCU charging detecting circuit 43 other ends are connected with voltage reduction module 1, and MCU discharge detection circuit 44 other ends are connected with boost module 3.
In the present embodiment; described MCU control chip U4 buying is from gulf pine writing brush; mainly realize following function: by detect battery battery core voltage number; control battery capacity indication lamp; can judge electric weight number, by detecting the size of charging current, can judge whether battery battery core has been full of; detect ohmically pressure drop by discharging current how many, can do overcurrent protection.
Program is write voluntarily by technical staff, is powered for MCU control chip U4 and battery capacity indication lamp 42 by MCU power supply circuits 41 by lithium battery protection module 2; MCU control chip U4 detects the battery core voltage of lithium battery group 5 by lithium battery protection module 2, and then controls battery capacity indication lamp, facilitate user judge lithium battery group 5 electric weight number; MCU control chip U4 detects the size of charging current in voltage reduction module 1 by MCU charging detecting circuit 43, judge whether lithium battery group 5 is full of; MCU control chip U4 detects the electric resistance partial pressure in booster circuit 3 by MCU discharge detection circuit 44, and amplify by amplifier, by electric resistance partial pressure and the comparison of electric discharge set point, in the time being greater than electric discharge set point, MCU control chip U4 sends signal, electric discharge metal-oxide-semiconductor in two metal-oxide-semiconductor modules 21 of lithium battery protection module 2 is closed, reach the object of discharge prevention; Simultaneously; MCU control chip U4 detects the electric resistance partial pressure in booster circuit 3 by MCU discharge detection circuit 44; exceed 2 minutes when the not load-carrying time; MCU control chip U4 sends signal, and the electric discharge metal-oxide-semiconductor in two metal-oxide-semiconductor modules 21 of lithium battery protection module 2 is closed, and reaches the object of energy savings; i.e. not bringing onto load output for a long time; the power saving function that 5V voltage is closed automatically, discharge over-current is closed output protecting function, and length is closed output and opens output function by & off switch.
As shown in Figure 3, described voltage reduction module 1 has comprised current-limiting circuit and thermal-shutdown circuit, being provided with can the outside input connecting, voltage reduction module 1 comprises input port USB, step-down control chip U1, current-limiting resistance R16, NTC thermistor RT1, excess temperature detects pin pin TEMP, excess temperature regulating resistance R7, N-type triode Q8 and charging detecting circuit 11, wherein, step-down control chip U1 respectively with input port USB, current-limiting resistance R16, NTC thermistor RT1, excess temperature detects pin pin TEMP, excess temperature regulating resistance R7 is connected with diode Q8, excess temperature resistance R 15 is connected with NTC thermistor RT1, it is in parallel with NTC thermistor RT1 that excess temperature detects pin pin TEMP, excess temperature detects the pin pin TEMP other end and is connected with MCU control module 4, current-limiting resistance R16 is in parallel with excess temperature regulating resistance R7, current-limiting resistance R16 other end ground connection, excess temperature regulating resistance R7 is connected with the collector electrode of N-type triode Q8, the base stage of N-type triode Q8 is connected with MCU control circuit 5, the grounded emitter of N-type triode Q8, control the conducting of N-type triode Q8 and close by MCU control module 4, charging detecting circuit 21 one end are connected between power input mouth USB and step-down control chip U1, the other end is connected with MCU control circuit 4 by being full of detection pin pin CHGOVER.
In the present embodiment, described step-down control chip U1 selects EUP8092, in the time of input port USB and power connection, step-down control chip U1 can be according to the size of outer meeting resistance, control the size of charging current, the size of charging current is directly proportional to the resistance of outer meeting resistance, plays effect of current-limiting protection; When normal working temperature, N-type triode Q8 closes, and the outer meeting resistance of step-down chip U1 is current-limiting resistance R16; In the time of excess Temperature; the resistance of NTC thermistor RT1 declines, and excess temperature detects the corresponding change of partial pressure value of pin pin TEMP, and MCU control module 4 is controlled N-type triode Q8 conducting; now; the outer meeting resistance of step-down chip U1 is the equivalent resistance in parallel that current-limiting resistance R16 and excess temperature regulate R7, and the resistance of outer meeting resistance declines, and makes the corresponding reduction of size of charging current; reach the object of overheat protector; in the time that temperature returns to rated value, N-type triode Q8 closes again, and charging current returns to normal condition.Described portable power source voltage reduction module 1 is with charge-current limit function and overheat protector function.
As shown in Figure 4; described lithium battery group 5 is connected with lithium battery protection module 2; lithium battery protection module 2 has overvoltage protection; under-voltage protection, overcurrent protection, short-circuit protection function; described lithium battery protection module 2 comprises protection control chip U20 and two metal-oxide-semiconductor module U21; wherein, protection control chip U20 is connected with two metal-oxide-semiconductor module U21, and lithium battery group 6 is connected with two metal-oxide-semiconductor module U21 with protection control chip U20 respectively.
In the present embodiment, described protection control chip U20 selects AS4130, in the time that protection control chip U20 detects that the voltage of lithium battery group 6 has exceeded overvoltage set point, the charging metal-oxide-semiconductor that protection control chip U20 controls in two metal-oxide-semiconductor modules is closed, and reaches the object of overvoltage protection; The voltage that lithium battery group 6 detected as protection control chip U20 is during lower than under-voltage set point, and the electric discharge metal-oxide-semiconductor that protection control chip U20 controls in two metal-oxide-semiconductor modules is closed, and reaches the object of under-voltage protection; The principle of overcurrent protection and short-circuit protection is identical with overvoltage protection and under-voltage protection respectively.
As shown in Figure 5, booster circuit or be called line loss compensation circuit, described boost module 3 comprises boost control chip U3, boost resistor R10, regulating resistance R22 and discharge detection circuit 31 boost, wherein, boost control chip U3 respectively with boost resistor R10 and the regulating resistance R22 that boosts, boost resistor R10 is in parallel with the regulating resistance R22 that boosts, the boost resistor R10 other end is connected with the anode of output voltage OUT, the regulating resistance R22 other end ground connection of boosting, discharge detection circuit 31 one end are connected with the negative terminal of output voltage OUT, discharge detection circuit 31 other end ground connection, current sense resistor R24 in discharge detection circuit is in parallel with discharge loop.
In the present embodiment, described boost control chip U3 selects EUP2627, the reference voltage of boost control chip U3 inside is by boost resistor R10 output bucking voltage, bucking voltage=reference voltage * R10/(R10+R22), output voltage OUT=discharge voltage+bucking voltage-line loss voltage, reaches the object of line loss compensation; Boost control chip U3 detects the electric resistance partial pressure of current sense resistor R24 in discharge detection circuit 31, by electric resistance partial pressure and the set point comparison of boosting, when being greater than while boosting set point, line loss voltage U=I*R also can correspondingly increase, boost control chip U3 can synchronously raise internal reference voltage, output voltage OUT is remained unchanged substantially, make the mobile device that charged unaffected, reach the object of voltage stabilizing.
As shown in Figure 6, described intelligent identification module 6 comprises Intelligent Recognition chip U6 and the output port CON that can be connected with outside, and wherein, Intelligent Recognition chip U6 is connected with output port CON.Automatically identification is various by beyond charging device by intelligent identification module 6 decapacitation are set for the utility model, can also give by charging device and provide and the electric current of the same effect of original-pack charger.
In the present embodiment, Intelligent Recognition chip U6 selects the TPS2511 of TI, in the time that mobile device is connected to output port CON, output voltage OUT by the first output port CON1 of being connected with Intelligent Recognition chip U6 and the 4th output port CON4 to charging of mobile devices; Intelligent Recognition chip U6 inside has various D+D-signal modes, as IPAD D+2.7 D_2.0, SAM D+1.2 D-1.2, blackberry, blueberry D+ D-need short circuit etc., Intelligent Recognition chip U6 provides the D+D-signal of coupling by the second output port CON2 and the 3rd output port CON3 for mobile device, ensure that mobile device can charge normal, and the charging effect identical with original-pack charger is provided.
Intelligent identification module 6 described in the present embodiment is analog circuits that IC controls, can detect identification to the various equipment being charged, because different charging of mobile devices current requirements is different, so identifying control function automatically, described portable power source there is automatic identification by the function of charging device and to being provided and original-pack charger charging current of a size by charging device.
Claims (6)
1. one kind has overvoltage, under-voltage, overcurrent, the portable power source of overheat protector function, for mobile device, comprise lithium battery protection module (2), MCU control module (4), lithium battery group (5) and Intelligent Recognition control module (6), it is characterized in that, sequentially voltage reduction module (1), lithium battery protection module (2), boost module (3) and Intelligent Recognition control module (6) are electrically connected in turn, voltage reduction module (1) is connected with power supply, lithium battery protection module (2) is connected with lithium battery group (5), MCU control module (4) is controlled hypotension module (1) respectively, lithium battery protection module (2) and boost module (3), Intelligent Recognition control module (6) is connected with mobile device.
2. according to claim 1 have an overvoltage, under-voltage, overcurrent, the portable power source of overheat protector function, it is characterized in that: described MCU control module (4) comprises MCU control chip (U4), MCU power supply circuits (41), battery capacity indication lamp (42), MCU charging detecting circuit (43) and MCU discharge detection circuit (44), wherein, MCU power supply circuits (41) respectively with lithium battery protection module (2), MCU control chip (U4) and battery capacity indication lamp (42) electrical connection, MCU control chip (U4) respectively with MCU power supply circuits (41), battery capacity indication lamp (42), MCU charging detecting circuit (43) is connected with MCU discharge detection circuit (44), MCU charging detecting circuit (43) other end is connected with voltage reduction module (1), MCU discharge detection circuit (44) other end is electrically connected with boost module (3).
3. according to claim 1 and 2 have an overvoltage, under-voltage, overcurrent, the portable power source of overheat protector function, it is characterized in that: described voltage reduction module (1) comprises input port (USB), step-down control chip (U1), current-limiting resistance (R16), NTC thermistor (RT1), excess temperature detects pin pin (TEMP), excess temperature regulating resistance (R7), N-type triode (Q8) and charging detecting circuit (11), wherein, step-down control chip (U1) respectively with input port (USB), current-limiting resistance (R16), NTC thermistor (RT1), excess temperature detects pin pin (TEMP), excess temperature regulating resistance (R7) is connected with N-type triode (Q8), excess temperature resistance (R15) is connected with NTC thermistor (RT1), it is in parallel with NTC thermistor (RT1) that excess temperature detects pin pin (TEMP), excess temperature detects pin pin (TEMP) other end and is connected with MCU control module (4), current-limiting resistance (R16) is in parallel with excess temperature regulating resistance (R7), current-limiting resistance (R16) other end ground connection, excess temperature regulating resistance (R7) connects the collector electrode of N-type triode (Q8), the base stage of N-type triode (Q8) is connected with MCU control module (4), the grounded emitter of N-type triode (Q8), control the conducting of N-type triode (Q8) and close by MCU control module (4), charging detecting circuit (11) one end is connected between power input mouth (USB) and step-down control chip (U1), the other end is connected with MCU control circuit (4) by being full of detection pin pin (CHGOVER).
4. the portable power source with overvoltage, under-voltage, overcurrent, overheat protector function according to claim 1 and 2; it is characterized in that: described lithium battery protection circuit (2) comprises protection control chip (U20) and two metal-oxide-semiconductor module (U21); wherein; protection control chip (U20) is connected with two metal-oxide-semiconductor modules (U21), and lithium battery group (5) is connected with two metal-oxide-semiconductor modules (U21) with protection control chip (U20) respectively.
5. according to claim 1 and 2 have an overvoltage, under-voltage, overcurrent, the portable power source of overheat protector function, it is characterized in that: described boost module (3) comprises boost control chip (U3), boost resistor (R10), regulating resistance (R22) and discharge detection circuit (31) boost, wherein, boost control chip (U3) respectively with boost resistor (R10) and the regulating resistance that boosts (R22), boost resistor (R10) is in parallel with the regulating resistance that boosts (R22), boost resistor (R10) other end is connected with the anode of output voltage (OUT), regulating resistance (R22) other end ground connection of boosting, discharge detection circuit (31) one end is connected with the negative terminal of output voltage (OUT), other end ground connection, and the current sense resistor (R24) in described discharge detection circuit (31) is in parallel with discharge loop.
6. the portable power source with overvoltage, under-voltage, overcurrent, overheat protector function according to claim 1; it is characterized in that: described Intelligent Recognition control module (6) comprises Intelligent Recognition chip (U6) and output port (CON), Intelligent Recognition chip (U6) is connected with output port (CON).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420045719.2U CN203761085U (en) | 2014-01-24 | 2014-01-24 | Mobile power source with over-voltage, under-voltage, over-current and over-temperature protection functions |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420045719.2U CN203761085U (en) | 2014-01-24 | 2014-01-24 | Mobile power source with over-voltage, under-voltage, over-current and over-temperature protection functions |
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| CN203761085U true CN203761085U (en) | 2014-08-06 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104883059A (en) * | 2015-05-21 | 2015-09-02 | 深圳市安派电子有限公司 | Double chip power protector and battery-powered electronic product production circuit |
| US10250048B2 (en) | 2014-12-31 | 2019-04-02 | Huawei Technologies Co., Ltd. | Charging protection method and apparatus |
| CN110429688A (en) * | 2019-08-26 | 2019-11-08 | 吉安伊戈尔电气有限公司 | A kind of USB twoport charger of the mutual lock control of band |
| CN112217258A (en) * | 2020-10-25 | 2021-01-12 | 广东佳的美智能科技有限公司 | Portable power source circuit and portable power source |
| CN112290643A (en) * | 2020-11-13 | 2021-01-29 | 深圳市猿人创新科技有限公司 | Synchronous boosting power supply control circuit |
| CN112737055A (en) * | 2021-01-13 | 2021-04-30 | 南昌嘉信高科技有限公司 | Charging protection circuit and electronic equipment |
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2014
- 2014-01-24 CN CN201420045719.2U patent/CN203761085U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10250048B2 (en) | 2014-12-31 | 2019-04-02 | Huawei Technologies Co., Ltd. | Charging protection method and apparatus |
| US10778018B2 (en) | 2014-12-31 | 2020-09-15 | Huawei Technologies Co., Ltd. | Charging protection method and apparatus |
| CN104883059A (en) * | 2015-05-21 | 2015-09-02 | 深圳市安派电子有限公司 | Double chip power protector and battery-powered electronic product production circuit |
| CN104883059B (en) * | 2015-05-21 | 2018-06-05 | 上海长园维安电子线路保护有限公司 | Dual chip power protector and battery-powered electronic product protection circuit |
| CN110429688A (en) * | 2019-08-26 | 2019-11-08 | 吉安伊戈尔电气有限公司 | A kind of USB twoport charger of the mutual lock control of band |
| CN112217258A (en) * | 2020-10-25 | 2021-01-12 | 广东佳的美智能科技有限公司 | Portable power source circuit and portable power source |
| CN112290643A (en) * | 2020-11-13 | 2021-01-29 | 深圳市猿人创新科技有限公司 | Synchronous boosting power supply control circuit |
| CN112737055A (en) * | 2021-01-13 | 2021-04-30 | 南昌嘉信高科技有限公司 | Charging protection circuit and electronic equipment |
| CN112737055B (en) * | 2021-01-13 | 2022-11-01 | 南昌嘉信高科技有限公司 | Charging protection circuit and electronic equipment |
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Granted publication date: 20140806 Termination date: 20180124 |