CN205304340U - Power management module with automatic identification USB equipment - Google Patents
Power management module with automatic identification USB equipment Download PDFInfo
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- CN205304340U CN205304340U CN201620053134.4U CN201620053134U CN205304340U CN 205304340 U CN205304340 U CN 205304340U CN 201620053134 U CN201620053134 U CN 201620053134U CN 205304340 U CN205304340 U CN 205304340U
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Abstract
The utility model relates to a power management module with automatic identification USB equipment belongs to the battery management device, includes the automatic identification USB equipment is connected with the MCU electricity, pulsed battery equilibrium system module, battery data detection IC and externally communication functional module, battery protective film piece, wherein: automatic identification USB equipment comprises MCU and DC -DC step -down IC and peripheral detection circuit module, to the access of USB equipment and extract and carry out detection and identification. The utility model discloses in automatic identification USB application equipment, the switch of DC -DC chip passes through MCU control, can be according to the output of the state control USB equipment of battery, detect voltage, electric current and the temperature of battery simultaneously, and the user state of electrolytic cell that has made the user has more improved security and the durability of using equipment.
Description
Technical field
The utility model relates to a kind of power management module with automatically identifying USB device, belongs to cell managing device.
Background technology
In the electronic information epoch, lithium battery, as a kind of new forms of energy, is widely used in traffic, communication, electric power, military affairs, navigation and aviation field. Lithium battery power management module also produces and development thereupon, many height strings are counted the function that not can be accessed by USB on lithium battery power management module now, but on market, more and more tend to wish to increase USB function on the lithium battery power management module of these high string numbers, can facilitate like this user to charge to electronic equipments such as mobile phones. There is in the market this kind of function, mainly use the method for hardware DC-DC, utilize step-down IC to realize 5V output. But there is certain deficiency in this method: completely independent with battery management module, and the output of uncontrollable USB, power consumption is large, and output current is little, and these can safety and facility to user cause adverse effect.
Application number: 201310700542.5 applyings date: 2013-12-18 the invention provides battery management system, integrated battery management devices, can reduce the space of occupying of battery management system. Battery management system possesses the cell managing device (management device of battery pack) that the battery monitoring apparatus (battery cell management device) that the battery module that forms with series connected battery unit arranges accordingly and the battery pack forming with series connected battery module arrange accordingly. Battery monitoring apparatus detects the voltage of each battery unit, and this voltage data is sent to cell managing device. Cell managing device detects the voltage of battery pack, according to the voltage data of this voltage and each battery unit of receiving from battery monitoring apparatus judge have or not abnormal. Battery monitoring apparatus and cell managing device are installed on same substrate and are formed integrated ECU(integrated battery management devices).
Utility model content
The purpose of this utility model is: a kind of power management module with automatically identifying USB device is provided, can automatically identifies USB device, impel product safer in operating process, more accurate.
The utility model is specifically realized in the following manner; a kind of power management module with automatically identifying USB device; comprise that the automatic identification USB device that is electrically connected with MCU, pulsed battery equalization system module, battery data detect IC and externally communication function module, battery protection module; wherein: described automatic identification USB device is made up of MCU and DC-DC step-down IC and peripheral testing circuit, the access to USB device and extract and detect identification. The utility model is the improvement to existing cell managing device, make automatically to identify USB device and become as a whole with battery management module, can effectively control the output of USB, reach automatic identification USB device safe, accurate, efficient, low-power consumption, impel product safer in operating process, more accurate.
On such scheme basis, described pulsed battery equalization system module integration is in analog front-end chip, coordinate peripheral metal-oxide-semiconductor and resistance unit to realize pulsed equilibrium, in the time that battery reaches the balanced unlocking condition of setting, equalizing system module can be opened equalization function in a period of time in once checking.
On such scheme basis, described battery data detection IC and externally communication function module, by using one detect IC collection battery data and by I2C communication modes, the information collecting be delivered in MCU, and realize external communication by the communications protocol of agreement.
On such scheme basis, described automatic identification USB device, the state that detects battery by MCU is controlled the output state of USB, in the time that battery current state is supported USB output, opens USB function, automatically detects USB device access or extracts; In the time that battery current state is not supported USB output, close USB function.
On such scheme basis; described battery protection module is: can Protection parameters be set by MCU; beyond the operating temperature that cell voltage is being set higher than the current value of setting, temperature lower than the low voltage value of setting, battery current higher than the overpressure value of setting, cell voltage, between battery, pressure reduction is greater than while setting value, and battery protection system module all can be cut off output and input circuit.
The utility model is in the application of automatic identification USB device, the switch of DC-DC chip is controlled by MCU, can be according to the output of the state control USB device of battery, detect voltage, electric current and the temperature of battery simultaneously, the use state of electrolytic cell that made user more, has improved the security and the durability that use equipment.
Brief description of the drawings
Fig. 1 is the circuit block diagram of the utility model module;
Fig. 2 identifies USB device application schematic diagram automatically;
Fig. 3 is the battery balanced schematic diagram of pulsed;
Fig. 4 is battery information collection and external communication schematic diagram;
Fig. 5 is battery protection system schematic diagram;
Fig. 6 is the utility model circuit theory diagrams;
Number in the figure explanation
1---MCU; 2---pulsed battery equalization system module;
3---battery data detects IC; 4---battery pack;
5---DC-DC step-down IC; 6---USB interface;
7---metal-oxide-semiconductor; 8,9---first and second resistance.
Detailed description of the invention
If Fig. 1 is the circuit block diagram of the utility model module; a kind of power management module with automatically identifying USB device; comprise that the automatic identification USB device that is electrically connected with MCU1, pulsed battery equalization system module 2, battery data detect IC3 and externally communication function module, battery protection module; wherein: described automatic identification USB device is made up of MCU1 and DC-DC step-down IC5 and peripheral testing circuit, the access by USB interface 6 to USB device and extract and detect identification.
Consult Fig. 2 for automatically identifying USB device application schematic diagram, automatically identification USB device, the state that detects battery pack 4 by MCU is controlled the output state of USB, in the time that battery current state can be supported USB output, open USB function, in the time that battery current state cannot be supported USB output, close USB function; In the time opening USB function, can automatically detect USB device access or extract.
Consulting Fig. 3 is the battery balanced schematic diagram of pulsed, and pulsed equilibrium detects the inner integrated balance module of IC, coordinates outside MOS and resistor-capacitor unit to realize pulsed equalization function. Described pulsed battery equalization system module integration detects in IC3 at AFE(analog front end) battery data, coordinate peripheral metal-oxide-semiconductor 7 resistance units to realize pulsed equilibrium, in the time that battery reaches the balanced unlocking condition of setting, equalizing system module can be opened equalization function in a period of time in once checking.
Consult Fig. 4, battery information collection and externally communication function after being detected,, are then gone out external battery information communication by the communications protocol of setting by I2C communication by battery information by Data Detection IC in MCU.
Consult Fig. 5; battery protection system; can Protection parameters be set by MCU; beyond the operating temperature that cell voltage is being set higher than the current value of setting, temperature lower than the low voltage value of setting, battery current higher than the overpressure value of setting, cell voltage time; exceeding after the time of setting; will turn-off output or input, realize the defencive function to battery.
The utility model comprises:
(1) use a high efficiency dc-to-dc step-down IC to realize the output of USB, use a MCU to detect the state of current battery, realize the output control to USB;
(2) be integrated in the battery equalization system in analog front-end chip, coordinate peripheral metal-oxide-semiconductor and resistor-capacitor unit, realize pulsed equalization function;
(3) the AFE(analog front end) IC of specialty can gather out accurate battery information, by I2C communication modes, the information collecting is delivered in MCU, and realizes external communication function by the communications protocol of agreement;
(4) Protection parameters that can arrange; beyond the operating temperature that cell voltage is being set higher than the current value of setting, temperature lower than the low voltage value of setting, battery current higher than the overpressure value of setting, cell voltage time; exceeding after the time of setting; will turn-off output or input, realize the defencive function to battery.
Fig. 6 is that the utility model is with the power management module circuit circuit diagram of automatically identifying USB device.
Claims (4)
1. the power management module with automatic identification USB device; comprise that the automatic identification USB device that is electrically connected with MCU, pulsed battery equalization system module, battery data detect IC and externally communication function module, battery protection module; it is characterized in that: described automatic identification USB device is made up of MCU and DC-DC step-down IC and peripheral testing circuit; access to USB device and extract and detect identification; wherein
Described pulsed battery equalization system module integration is in analog front-end chip, coordinate peripheral metal-oxide-semiconductor and resistance unit to realize pulsed equilibrium, in the time that battery reaches the balanced unlocking condition of setting, equalizing system module can be opened equalization function in a period of time in once checking.
2. according to claim 1 with the power management module of automatically identifying USB device, it is characterized in that: described battery data detection IC and externally communication function module, by using one detect IC collection battery data and by I2C communication modes, the information collecting be delivered in MCU, and realize external communication by the communications protocol of agreement.
3. according to claim 1 with the power management module of automatically identifying USB device, it is characterized in that: described automatic identification USB device, the state that detects battery by MCU is controlled the output state of USB, in the time that battery current state is supported USB output, open USB function, automatically detect USB device access or extract; In the time that battery current state is not supported USB output, close USB function.
4. according to claim 1 with the power management module of automatically identifying USB device; it is characterized in that: described battery protection module is: by MCU, Protection parameters is set; beyond the operating temperature that cell voltage is being set higher than the current value of setting, temperature lower than the low voltage value of setting, battery current higher than the overpressure value of setting, cell voltage, between battery, pressure reduction is greater than while setting value, and battery protection system module all can be cut off output and input circuit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520174115 | 2015-03-26 | ||
| CN2015201741152 | 2015-03-26 |
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| Publication Number | Publication Date |
|---|---|
| CN205304340U true CN205304340U (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620053134.4U Active CN205304340U (en) | 2015-03-26 | 2016-01-20 | Power management module with automatic identification USB equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109950939A (en) * | 2017-12-20 | 2019-06-28 | 炬芯（珠海）科技有限公司 | Charger states detection circuit, circuitry and charger states detection method |
-
2016
- 2016-01-20 CN CN201620053134.4U patent/CN205304340U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109950939A (en) * | 2017-12-20 | 2019-06-28 | 炬芯（珠海）科技有限公司 | Charger states detection circuit, circuitry and charger states detection method |
| CN109950939B (en) * | 2017-12-20 | 2021-09-24 | 炬芯科技股份有限公司 | Charger state detection circuit, device circuit, and charger state detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 200083 806, floor 8, No. 125, Liuying Road, Hongkou District, Shanghai Patentee after: Shanghai Wei'an Electronic Co.,Ltd. Address before: Seven road 201202 Shanghai Pudong New Area Shiwan No. 1001 Patentee before: Shanghai Changyuan Wayon Circuit Protection Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Room 806, 8th floor, 125 Liuying Road, Hongkou District, Shanghai 200083 Patentee after: Shanghai Weian Electronics Co.,Ltd. Address before: 806, 8th floor, 125 Liuying Road, Hongkou District, Shanghai 200083 Patentee before: Shanghai Wei'an Electronic Co.,Ltd. |
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| CP03 | Change of name, title or address |