CN205039588U - Battery measurement control circuit - Google Patents
Battery measurement control circuit Download PDFInfo
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- CN205039588U CN205039588U CN201520804818.9U CN201520804818U CN205039588U CN 205039588 U CN205039588 U CN 205039588U CN 201520804818 U CN201520804818 U CN 201520804818U CN 205039588 U CN205039588 U CN 205039588U
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- voltage
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- discharge
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- load
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Abstract
The utility model relates to a control of charge and discharge technical field, the utility model provides a battery measurement control circuit, battery measurement control circuit is including charging module, a control module and the 2nd control module, connect the battery not during connected load as a control module, the module of charging and a control module agree in order to obtain output voltage information through shaking hands to output voltage gives a control module, when a control module connects battery and load simultaneously, a control module and the discharge voltage of load through the definite load of agreement of shaking hands, the 2nd control module obtains discharge voltage information with the load phase intercommunication to give the module of charging with discharge voltage message routing, the module of charging is according to predetermineeing output voltage scope and discharge voltage information output voltage value to charge for the battery simultaneously and be the load through a control module and discharge, realize that self - regulated output voltage in order to reach the balance, can support charge -discharge simultaneously.
Description
Technical field
The utility model relates to charge and discharge control technical field, particularly relates to a kind of battery charge/discharge control circuit.
Background technology
Most charge-discharge circuit specification has two kinds of situations in the market: the first is that input voltage specification contains or equals output voltage specification, such as 5V, and the shortcoming of this circuit to support quick charge.The second is that input voltage is not identical with output voltage, such as supports the charger baby of quick charge or repid discharge.Because input and output voltage is not identical, input and output can not direct short circuits, and charging circuit cannot be accomplished to discharge to battery charging with to duty ratio such as the mobile phone of outside access simultaneously.In sum, there is charging circuit in prior art cannot simultaneously to battery charging and the problem to load discharge.
Utility model content
The purpose of this utility model is to provide a kind of battery charge/discharge control circuit, and being intended to solution cannot simultaneously to battery charging and the problem to load discharge for there is charging circuit in prior art.
The utility model is achieved in that first aspect provides a kind of battery charge/discharge control circuit, and described battery charge/discharge control circuit comprises charging module, the first control module and the second control module;
The voltage output end of described charging module connects the voltage input end of described first control module, first signal input output end of described charging module connects the first signal input output end of described first control module, first voltage output end of described first control module connects battery, second voltage output end of described first control module connects the voltage input end of load, the secondary signal input/output terminal of described first control module connects the first signal input output end of described load, first signal of described second control module inputs the secondary signal input/output terminal of the described charging module of defeated connection, the secondary signal input/output terminal of described second control module connects the secondary signal input/output terminal of described load,
When described first control module connect battery do not connect load time, described charging module and described first control module are by Handshake Protocol to obtain output voltage information, and output voltage is to described first control module;
When described first control module connects battery and load simultaneously, described first control module and described load obtain the discharge voltage determining described load by Handshake Protocol;
Described second control module and described load intercom mutually and obtain described discharge voltage information, and described discharge voltage information is sent to described charging module;
Described charging module according to pre-set output voltage scope and described discharge voltage information adjustment output voltage values, and by described first control module be simultaneously described battery charge and be described load discharge.
In conjunction with first aspect, as the first execution mode of first aspect, according to described discharge voltage information, described charging module judges whether discharge voltage value is positioned at pre-set output voltage scope, when judged result is for being, output voltage values is made to be discharge voltage value, when judged result is no, stops output voltage and judged result is sent to described load by described second control module.
In conjunction with first aspect and the first execution mode thereof, as the second execution mode of first aspect, described load is according within the scope of described judged result adjustment discharge voltage to described pre-set output voltage, and by described second control module, the discharge voltage information after adjustment is sent to described charging module, adjust output voltage to make described charging module.
In conjunction with first aspect, as the third execution mode of first aspect, described first control module comprises control unit, voltage transformation module and switching device;
First signal input output end of described control unit is the first signal input output end of described first control module, the secondary signal input/output terminal of described control unit is the secondary signal input/output terminal of described first control module, the input of described switching device connects the input of described change in voltage unit and forms the voltage input end of described first control module, the output of described switching device is the second voltage output end of described first control module, the output of described voltage transformation module is the first voltage output end, first signal output part of described control unit connects the control end of described switching device, the secondary signal output of described control unit connects the control end of described voltage transformation module,
Described control unit controls described switch device conductive makes described charging module to described load discharge, and controls described voltage transformation module and carry out being described battery charging after voltage transformation to the output voltage of described charging module.
The utility model proposes a kind of battery charge/discharge control circuit, charging module is by the communication with the first control module and the second control module, teaching display stand regulation output voltage is to reach balance, discharge and recharge simultaneously can be supported, also can reach higher efficiency for charge-discharge and realize adjustable charge/discharge rates.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of battery charge/discharge control circuit that a kind of embodiment of the utility model provides;
Fig. 2 is the structural representation of the first control module in a kind of battery charge/discharge control circuit of providing of the another kind of embodiment of the utility model;
Fig. 3 is the flow chart of a kind of battery charge-discharge control method that a kind of embodiment of the utility model 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.
In order to the technical solution of the utility model is described, be described below by specific embodiment.
A kind of embodiment of the utility model provides a kind of battery 105 charge-discharge control circuit, and as shown in Figure 1, battery 105 charge-discharge control circuit comprises charging module 101, first control module 102 and the second control module 103;
The voltage output end of charging module 101 connects the voltage input end of the first control module 102, first signal input output end of charging module 101 connects the first signal input output end of the first control module 102, first voltage output end of the first control module 102 connects battery 105, second voltage output end of the first control module 102 connects the voltage input end of load 104, the secondary signal input/output terminal of the first control module 102 connects the first signal input output end of load 104, first signal of the second control module 103 inputs the secondary signal input/output terminal of defeated connection charging module 101, the secondary signal input/output terminal of the second control module 103 connects the secondary signal input/output terminal of load 104,
When the first control module 102 connect battery 105 do not connect load 104 time, charging module 101 and the first control module 102 by Handshake Protocol to obtain output voltage information, and output voltage give the first control module 102;
When the first control module 102 connects battery 105 and load 104 simultaneously, the first control module 102 obtains with load 104 discharge voltage determining load 104 by Handshake Protocol;
Second control module 103 intercoms with load 104 phase and obtains discharge voltage information, and discharge voltage information is sent to charging module 101;
Charging module 101 according to pre-set output voltage scope and discharge voltage information adjustment output voltage values, and by the first control module 102 simultaneously for battery 105 charges and is that load 104 is discharged.
Concrete, predetermined voltage range is the exportable magnitude of voltage of charging module or voltage range, as 5 volts to 12 volts or multiple output voltage values 5 volts, 9 volts and 12 volts etc.
Further, according to discharge voltage information, charging module 101 judges whether discharge voltage value is positioned at pre-set output voltage scope, when judged result is for being, output voltage values is made to be discharge voltage value, when judged result is no, stops output voltage and judged result is sent to load 104 by the second control module 103.
Further, load 104 adjusts discharge voltage within the scope of pre-set output voltage according to judged result, and by the second control module 103, the discharge voltage information after adjustment is sent to charging module 101, adjusts output voltage to make charging module 101.
Concrete, first control module 102 is as follows by the detailed process of Handshake Protocol with load 104: when the first control module 102 is linked in load 104 by data wire, load 104 is for mobile phone, give tacit consent to and allow D+ and D-short circuit by MOS, detecting charger type is DCP (special charging port mode), now output voltage is 5v, and mobile phone charges normal.If QC2.0 fast charge protocol supported by mobile phone, then the hvdcp process of Android user's space will start, and starts the voltage loading 0.325V on D+.After this voltage maintains 1.25s, charger will disconnect the short circuit of D+ and D-, and the voltage on D-will decline; After the voltage drop on D-being detected, the value of hvdcp reading/sys/class/power_supply/usb/voltage_max, if 9V, the voltage arranged on D+ is the voltage on 3.3V, D-is 0.6V, and charger exports 9v voltage.If 5V, to arrange D+ be 0.6V, D-is 0V, and charger exports 5V voltage.
Concrete, the utility model can realize discharging to load 104 while charging module 101 pairs of batteries 105 charge, battery 105 pairs of loads 104 are discharged and charging module 101 pairs of batteries 105 charge.
The charging process of charging module 101 pairs of batteries 105:
If when lacking circuit load 104, whole circuit only charges to battery 105, it is also handshake procedure that first control module 102 carries out information exchange with charging module 101 by charging inlet, thus determine the charging voltage value that charging module 101 exports, and charge to battery 105 with this voltage.
The discharge process of battery 105 pairs of loads 104:
If when lacking charging module 101, whole circuit only discharges to battery 105, it is also handshake procedure that information exchange is carried out in first control module 102 and circuit load 104, thus establishes the discharge voltage value of battery 105 output, and discharges to circuit load 104 with this voltage.
To load 104 discharge process while charging module 101 pairs of batteries 105 charge:
If there is charging module 101 and circuit load 104 simultaneously, so need to carry out charge and discharge process simultaneously, when having load 104, first charging module 101 and load 104 can communicate with the first control module 102 respectively and determine the output voltage of charging module 101 and the discharge voltage of load 104 needs.This time, need between charging module 101 and load 104 to be communicated by the second control module 103, the discharge voltage digital logic signal that load 104 needs by the second control module 103 sends to charging module 101, charging module 101 detects that can obtain discharge voltage digital logic signal judge export this voltage value signal, if this magnitude of voltage can not be provided, load 104 is sent a signal to by the second control module 103, load 104 receives can not the signal of output voltage, regulate the voltage of oneself to common level (5V), again send required discharge voltage by the second control module 103 transmission of signal to charging module 101, if such magnitude of voltage that charging module 101 can provide, so charging module 101 is consistent with load 104 with regard to output voltage values.
Wherein, if charging module 101 cannot provide the magnitude of voltage of expection, circuit load 104 is fed back to again by the second control module 103, it is also handshake procedure that handshaking is carried out in second control module 103 and circuit load 104, establish new discharge voltage value, finally charging voltage and discharge voltage are set to same magnitude of voltage, thus guarantee that input and output can short circuit, realize charging to battery 105 and load 104 is discharged simultaneously.
Further, the first control module 102 comprises control unit 1021, voltage transformation module 1023 and switching device 1022;
First signal input output end of control unit 1021 is the first signal input output end of the first control module 102, the secondary signal input/output terminal of control unit 1021 is the secondary signal input/output terminal of the first control module 102, the input of switching device 1022 connects the input of change in voltage unit and forms the voltage input end of the first control module 102, the output of switching device 1022 is the second voltage output end of the first control module 102, the output of voltage transformation module 1023 is the first voltage output end, the control end of the first signal output part connecting valve device 1022 of control unit 1021, the secondary signal output of control unit 1021 connects the control end of voltage transformation module 1023,
The conducting of control unit 1021 control switch device 1022 makes charging module 101 discharge to load 104, and the output voltage of control voltage converter unit 1023 pairs of charging modules 101 charges for battery 105 after carrying out voltage transformation.
A kind of control method based on above-mentioned battery charge/discharge control circuit of the another kind of embodiment of the utility model, this control method comprises the following steps:
Step S101. when the first control module 102 connect battery do not connect load time, charging module 101 and the first control module 102 by Handshake Protocol to obtain output voltage information, and output voltage give the first control module 102;
Step S102. is when the first control module 102 connects battery 105 and load 104 simultaneously, and the first control module 102 obtains with load the discharge voltage determining load 104 by Handshake Protocol;
Step S103. second control module 103 intercoms mutually with load and obtains discharge voltage information, and discharge voltage information is sent to charging module 101;
Step S104. charging module 101 according to pre-set output voltage scope and discharge voltage information adjustment output voltage values, and by the first control module 102 simultaneously for battery 105 charges and is that load 104 is discharged.
Concrete, in step S104, charging module 101 is specially according to the step of pre-set output voltage scope and discharge voltage information adjustment output voltage values:
According to discharge voltage information, charging module 101 judges whether discharge voltage value is positioned at pre-set output voltage scope, when judged result is for being, output voltage values is made to be discharge voltage value, when judged result is no, stops output voltage and judged result is sent to load 104 by the second control module 103.
Also comprise after judged result is sent to the step of load by the second control module 103:
Load 104 adjusts discharge voltage within the scope of pre-set output voltage according to judged result, and by the second control module 103, the discharge voltage information after adjustment is sent to charging module 101, adjusts output voltage to make charging module 101.
The step of being charged for battery by the first control module 102 is specially:
Battery is exported to after the voltage exported by charging module 101 carries out voltage transformation.
Concrete, the utility model can realize discharging to load 104 while charging module 101 pairs of batteries 105 charge, battery 105 pairs of loads 104 are discharged and charging module 101 pairs of batteries 105 charge.
The charging process of charging module 101 pairs of batteries 105:
If when lacking circuit load 104, whole circuit only charges to battery 105, it is also handshake procedure that first control module 102 carries out information exchange with charging module 101 by charging inlet, thus determine the charging voltage value that charging module 101 exports, and charge to battery 105 with this voltage.
The discharge process of battery 105 pairs of loads 104:
If when lacking charging module 101, whole circuit only discharges to battery 105, it is also handshake procedure that information exchange is carried out in first control module 102 and circuit load 104, thus establishes the discharge voltage value of battery 105 output, and discharges to circuit load 104 with this voltage.
To load 104 discharge process while charging module 101 pairs of batteries 105 charge:
If there is charging module 101 and circuit load 104 simultaneously, so need to carry out charge and discharge process simultaneously, when having load 104, first charging module 101 and load 104 can communicate with the first control module 102 respectively and determine the output voltage of charging module 101 and the discharge voltage of load 104 needs.This time, need between charging module 101 and load 104 to be communicated by the second control module 103, the discharge voltage digital logic signal that load 104 needs by the second control module 103 sends to charging module 101, charging module 101 detects that can obtain discharge voltage digital logic signal judge export this voltage value signal, if this magnitude of voltage can not be provided, load 104 is sent a signal to by the second control module 103, load 104 receives can not the signal of output voltage, regulate the voltage of oneself to common level (5V), again send required discharge voltage by the second control module 103 transmission of signal to charging module 101, if such magnitude of voltage that charging module 101 can provide, so charging module 101 is consistent with load 104 with regard to output voltage values.
The utility model proposes a kind of battery charge/discharge control circuit and control method thereof, charging module is by the communication with the first control module and the second control module, teaching display stand regulation output voltage and input voltage reach balance, discharge and recharge simultaneously can be supported, also can support high efficiency for charge-discharge and adjustable charge/discharge rates.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field; make some equivalent alternative or obvious modification without departing from the concept of the premise utility; and performance or purposes identical, all should be considered as belonging to the scope of patent protection that the utility model is determined by submitted to claims.
Claims (4)
1. a battery charge/discharge control circuit, is characterized in that, described battery charge/discharge control circuit comprises charging module, the first control module and the second control module;
The voltage output end of described charging module connects the voltage input end of described first control module, first signal input output end of described charging module connects the first signal input output end of described first control module, first voltage output end of described first control module connects battery, second voltage output end of described first control module connects the voltage input end of load, the secondary signal input/output terminal of described first control module connects the first signal input output end of described load, first signal of described second control module inputs the secondary signal input/output terminal of the described charging module of defeated connection, the secondary signal input/output terminal of described second control module connects the secondary signal input/output terminal of described load,
When described first control module connect battery do not connect load time, described charging module and described first control module are by Handshake Protocol to obtain output voltage information, and output voltage is to described first control module;
When described first control module connects battery and load simultaneously, described first control module and described load determine the discharge voltage of described load by Handshake Protocol;
Described second control module and described load intercom mutually and obtain described discharge voltage information, and described discharge voltage information is sent to described charging module;
Described charging module according to pre-set output voltage scope and described discharge voltage information adjustment output voltage values, and by described first control module be simultaneously described battery charge and be described load discharge.
2. battery charge/discharge control circuit as claimed in claim 1, it is characterized in that, according to described discharge voltage information, described charging module judges whether discharge voltage value is positioned at pre-set output voltage scope, when judged result is for being, output voltage values is made to be discharge voltage value, when judged result is no, stops output voltage and judged result is sent to described load by described second control module.
3. battery charge/discharge control circuit as claimed in claim 2, it is characterized in that, described load is according within the scope of described judged result adjustment discharge voltage to described pre-set output voltage, and by described second control module, the discharge voltage information after adjustment is sent to described charging module, adjust output voltage to make described charging module.
4. battery charge/discharge control circuit as claimed in claim 1, it is characterized in that, described first control module comprises control unit, voltage transformation module and switching device;
First signal input output end of described control unit is the first signal input output end of described first control module, the secondary signal input/output terminal of described control unit is the secondary signal input/output terminal of described first control module, the input of described switching device connects the input of described change in voltage unit and forms the voltage input end of described first control module, the output of described switching device is the second voltage output end of described first control module, the output of described voltage transformation module is the first voltage output end, first signal output part of described control unit connects the control end of described switching device, the secondary signal output of described control unit connects the control end of described voltage transformation module,
Described control unit controls described switch device conductive makes described charging module to described load discharge, and controls described voltage transformation module and carry out being described battery charging after voltage transformation to the output voltage of described charging module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520804818.9U CN205039588U (en) | 2015-10-16 | 2015-10-16 | Battery measurement control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520804818.9U CN205039588U (en) | 2015-10-16 | 2015-10-16 | Battery measurement control circuit |
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| Publication Number | Publication Date |
|---|---|
| CN205039588U true CN205039588U (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520804818.9U Withdrawn - After Issue CN205039588U (en) | 2015-10-16 | 2015-10-16 | Battery measurement control circuit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226754A (en) * | 2015-10-16 | 2016-01-06 | 深圳宝砾微电子有限公司 | Battery charge/discharge control circuit and control method thereof |
| WO2018040170A1 (en) * | 2016-08-31 | 2018-03-08 | 宇龙计算机通信科技(深圳)有限公司 | Charging method and apparatus |
| WO2018040173A1 (en) * | 2016-08-30 | 2018-03-08 | 宇龙计算机通信科技(深圳)有限公司 | Quick charging identification method and terminal device |
-
2015
- 2015-10-16 CN CN201520804818.9U patent/CN205039588U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226754A (en) * | 2015-10-16 | 2016-01-06 | 深圳宝砾微电子有限公司 | Battery charge/discharge control circuit and control method thereof |
| WO2018040173A1 (en) * | 2016-08-30 | 2018-03-08 | 宇龙计算机通信科技(深圳)有限公司 | Quick charging identification method and terminal device |
| WO2018040170A1 (en) * | 2016-08-31 | 2018-03-08 | 宇龙计算机通信科技(深圳)有限公司 | Charging method and apparatus |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160217 Effective date of abandoning: 20180213 |
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| AV01 | Patent right actively abandoned |