CN204886326U - Improve battery available capacity circuit - Google Patents
Improve battery available capacity circuit Download PDFInfo
- Publication number
- CN204886326U CN204886326U CN201520662378.8U CN201520662378U CN204886326U CN 204886326 U CN204886326 U CN 204886326U CN 201520662378 U CN201520662378 U CN 201520662378U CN 204886326 U CN204886326 U CN 204886326U
- Authority
- CN
- China
- Prior art keywords
- unit
- voltage
- battery
- chip
- battery unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model belongs to the technical field of supply circuit, especially, relate to an improve battery available capacity circuit. The embodiment of the utility model provides an in, this improve battery available capacity circuit passes through voltage detecting control unit detect cell, when cell voltage is less than 3.6V, through the mode of people for stepping up, has improved the magnitude of voltage that reaches the power demand end, even if system voltage has certain fluctuation, also can not result in the system unstable, has also increased cell's available voltage range simultaneously, has improved battery available capacity, lets battery capacity obtain control unit detect 0.
Description
Technical field
The utility model belongs to power supply circuits technical field, particularly relates to a kind of raising battery active volume circuit.
Background technology
In portable type electronic product, along with the change of screen is large, the service time of machine is shorter and shorter; When battery capacity is certain, we can reduce the method for Overall Power Consumption to extend user's service time on the one hand, are exactly the time being extended user by the way of raising battery active volume in addition on the one hand; All there is optimization in each producer of first method, but is limited to actual device, optimizes space up till now little.For method two, general principle is as follows: for the battery of a fixed capacity, the capacity of definition is the capacity discharging into this interval of 3.0V from full voltage, but be limited to the stability of a system, we just no longer discharge to battery to about 3.6V in actual use, here, after primary concern battery low-voltage, the fluctuation due to voltage causes system works unstable; The battery capacity that so 3.6V to 3.0V this section is interval does not just use, and from test data, this section of capacity probably has about 13%, also just causes the waste of battery capacity here.
Utility model content
The object of the utility model embodiment is that providing a kind of improves battery active volume circuit, is intended to the problem that the present battery capacity of solution is not fully used.
The utility model embodiment is achieved in that a kind of raising battery active volume circuit, and be connected with power demands end, described raising battery active volume circuit comprises:
Battery unit, be connected to switch element between described battery unit and described power demands end;
Described raising battery active volume circuit also comprises:
Be connected to the boosting unit between described battery unit and power demands end; And
Be connected with described battery unit, switch element and boosting unit respectively, the voltage of described battery unit is detected, if the voltage of described battery unit is lower than 3.6V, controls described boosting unit and improve battery unit to the voltage detecting control unit of the supply power voltage of power demands end to 3.6V.
In said structure, described boosting unit adopts the input IN of boost chip U1, described boost chip U1 to connect described battery unit, and the output OUT of described boost chip U1 connects described power demands end.
In said structure, described switch element adopts switch chip U2, and the input IN of described switch chip U2 connects described battery unit, and the output OUT of described switch chip U2 connects described power demands end.
In said structure, described voltage detecting control unit adopts voltage detecting control chip U3, the test side I/O of described voltage detecting control chip U3 connects described battery unit, and the control end CTRL of described voltage detecting control chip U3 meets the control end C2 of described switch chip U2 and the control end C1 of boost chip U1 simultaneously.
In the utility model embodiment, this raising battery active volume circuit detects battery unit by voltage detecting control unit, when battery cell voltage is lower than 3.6V, by the mode of artificially boosting, improve the magnitude of voltage reaching power demands end, even if system voltage has certain fluctuation, also system can not be caused unstable, too increase the available voltage range of battery unit simultaneously, improve battery active volume, allow battery capacity be fully used.
Accompanying drawing explanation
Fig. 1 is the circuit module figure of the raising battery active volume circuit that the utility model embodiment provides;
Fig. 2 is the circuit structure diagram of the raising battery active volume circuit that the utility model embodiment provides.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 1 shows the circuit modular structure of the raising battery active volume circuit that the utility model embodiment provides, and for convenience of explanation, illustrate only the part relevant to the utility model embodiment.
A kind of raising battery active volume circuit, be connected with power demands end, described raising battery active volume circuit comprises:
Battery unit 1, be connected to switch element 2 between described battery unit 1 and described power demands end;
Described raising battery active volume circuit also comprises:
Be connected to the boosting unit 4 between described battery unit 1 and power demands end; And
Be connected with described battery unit 1, switch element 2 and boosting unit 4 respectively, the voltage of described battery unit 1 is detected, if the voltage of described battery unit 1 is lower than 3.6V, control the voltage detecting control unit 3 of supply power voltage to 3.6V that described boosting unit 4 improves battery unit 1 pair of power demands end.
Fig. 2 shows the circuit structure of the raising battery active volume circuit that the utility model embodiment provides, and for convenience of explanation, illustrate only the part relevant to the utility model embodiment.
As the utility model one embodiment, described boosting unit 4 adopts boost chip U1, and the input IN of described boost chip U1 connects described battery unit 1, and the output OUT of described boost chip U1 connects described power demands end.
As the utility model one embodiment, described switch element 2 adopts switch chip U2, and the input IN of described switch chip U2 connects described battery unit 1, and the output OUT of described switch chip U2 connects described power demands end.
As the utility model one embodiment, described voltage detecting control unit 3 adopts voltage detecting control chip U3, the test side I/O of described voltage detecting control chip U3 connects described battery unit 1, and the control end CTRL of described voltage detecting control chip U3 meets the control end C2 of described switch chip U2 and the control end C1 of boost chip U1 simultaneously.
As the utility model one embodiment, boost chip U1 can adopt model to be the boost chip of AAT2215, can certainly adopt the boost chip of other model, just illustrate here.
As the utility model one embodiment, switch chip U2 can adopt model to be the Low ESR PchannelMOSFET of TCS1905, can certainly adopt the switch chip of other model, just illustrate here.
As the utility model one embodiment, voltage detecting control chip U3 can adopt model to be the amplifier chip of SGM8711 type, can certainly adopt the chip of other model, just illustrate here.
Operation principle: after powering on, voltage detecting control unit 3 detects the magnitude of voltage of current battery unit 1, if higher than 3.6V, then voltage detecting control unit 3 is respectively by control end CTRL output low level control signal, control switch unit 2 is opened, control boosting unit 4 to close, battery unit 1 arrives power demands end after switch element 2, powers to whole system; When voltage detecting control unit 3 detects that battery unit 1 voltage is lower than 3.6V, voltage detecting control unit 3 exports high level, control switch unit 2 is closed, control boosting unit 4 to open, now battery unit 1 voltage to boost to after 3.6V to power demands end after boosting unit 4, powers to whole system.
In the utility model embodiment, this raising battery active volume circuit detects battery unit by voltage detecting control unit, when battery cell voltage is lower than 3.6V, by the mode of artificially boosting, improve the magnitude of voltage reaching power demands end, even if system voltage has certain fluctuation, also system can not be caused unstable, too increase the available voltage range of battery unit simultaneously, improve battery active volume, allow battery capacity be fully used.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (4)
1. improve a battery active volume circuit, be connected with power demands end, it is characterized in that, described raising battery active volume circuit comprises:
Battery unit, be connected to switch element between described battery unit and described power demands end;
Described raising battery active volume circuit also comprises:
Be connected to the boosting unit between described battery unit and power demands end; And
Be connected with described battery unit, switch element and boosting unit respectively, the voltage of described battery unit is detected, if the voltage of described battery unit is lower than 3.6V, controls described boosting unit and improve battery unit to the voltage detecting control unit of the supply power voltage of power demands end to 3.6V.
2. raising battery active volume circuit as claimed in claim 1, it is characterized in that, described boosting unit adopts the input IN of boost chip U1, described boost chip U1 to connect described battery unit, and the output OUT of described boost chip U1 connects described power demands end.
3. raising battery active volume circuit as claimed in claim 2, it is characterized in that, described switch element adopts switch chip U2, and the input IN of described switch chip U2 connects described battery unit, and the output OUT of described switch chip U2 connects described power demands end.
4. raising battery active volume circuit as claimed in claim 3, it is characterized in that, described voltage detecting control unit adopts voltage detecting control chip U3, the test side I/O of described voltage detecting control chip U3 connects described battery unit, and the control end CTRL of described voltage detecting control chip U3 meets the control end C2 of described switch chip U2 and the control end C1 of boost chip U1 simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520662378.8U CN204886326U (en) | 2015-08-27 | 2015-08-27 | Improve battery available capacity circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520662378.8U CN204886326U (en) | 2015-08-27 | 2015-08-27 | Improve battery available capacity circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204886326U true CN204886326U (en) | 2015-12-16 |
Family
ID=54830647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520662378.8U Expired - Fee Related CN204886326U (en) | 2015-08-27 | 2015-08-27 | Improve battery available capacity circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204886326U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020019300A1 (en) * | 2018-07-27 | 2020-01-30 | 华为技术有限公司 | Power supply circuit of terminal device, terminal device and power supply method |
-
2015
- 2015-08-27 CN CN201520662378.8U patent/CN204886326U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020019300A1 (en) * | 2018-07-27 | 2020-01-30 | 华为技术有限公司 | Power supply circuit of terminal device, terminal device and power supply method |
| US11949272B2 (en) | 2018-07-27 | 2024-04-02 | Honor Device Co., Ltd. | Power supply circuit of terminal device, terminal device, and power supply method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104935072B (en) | Stand-by power supply method for handover control and device | |
| CN104167923A (en) | Dynamic fast response circuit of switching power supply | |
| CN205544400U (en) | Battery management system of low -power consumption standby | |
| CN108667285A (en) | Adjust the control circuit and Switching Power Supply of switching frequency and load current relationship | |
| CN102629825A (en) | Circuit structure of realizing synchronous buck-type charging and boost-type power supply by using single inductor | |
| CN102404625B (en) | Set-top box and standby control method thereof | |
| CN104092451A (en) | Power consumption switching control circuit | |
| CN205490150U (en) | Mains operated system of low -power consumption | |
| CN204886326U (en) | Improve battery available capacity circuit | |
| CN204441876U (en) | A kind of low-power consumption leadage circuit of AC power | |
| CN206820654U (en) | A kind of boost control circuit | |
| CN202533829U (en) | Non-capacitance low-voltage-differential linear voltage stabilizing system and bias current adjusting circuit thereof | |
| CN203660640U (en) | Economical power failure maintenance circuit | |
| CN201541247U (en) | Power-on reset device of integrated circuit chip | |
| CN204205574U (en) | A kind of over-discharge protection circuit | |
| CN205212497U (en) | Power supply system is prevented in low -power consumption shutdown circuit and low -power consumption | |
| CN204230947U (en) | A kind of portable power source of standby zero-power-consumption | |
| CN203859545U (en) | Single chip intelligent power supply with load state detection and multiple independent current limit output | |
| CN203119762U (en) | Micro-control unit power supply circuit | |
| CN204156835U (en) | Standby start-up circuit and electronic equipment | |
| CN203326664U (en) | Mobile power supply control chip and mobile power supply using the same | |
| CN202840584U (en) | Power supply circuit | |
| CN201345532Y (en) | Power output short-circuit protection circuit | |
| CN206023261U (en) | A kind of cell voltage protection circuit | |
| CN201926699U (en) | Low-voltage circuit for power failure detection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 |