CN110797939A - Battery power supply control circuit and device - Google Patents
Battery power supply control circuit and device Download PDFInfo
- Publication number
- CN110797939A CN110797939A CN201910992355.6A CN201910992355A CN110797939A CN 110797939 A CN110797939 A CN 110797939A CN 201910992355 A CN201910992355 A CN 201910992355A CN 110797939 A CN110797939 A CN 110797939A
- Authority
- CN
- China
- Prior art keywords
- battery
- module
- voltage
- batteries
- power supply
- 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.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a battery power supply control circuit and a device, wherein the circuit comprises: the device comprises a battery module, a boosting module and a battery access module; the battery module is connected with the input of the boost module and the battery access module respectively, the output of the boost module is used for connecting a load, the battery module comprises at least four batteries, the battery access module is used for serially connecting three batteries in the battery module in sequence, because the voltage range of a single battery is generally between 0.8V to 1.6V, therefore, the voltage after the three batteries are serially connected is between 2.4V and 4.8V, the voltage after the three batteries are serially connected is less than 5V, therefore, only the boost module needs to be arranged, the voltage output by the battery module is boosted, so that the voltage output by the battery power supply control circuit reaches the preset voltage, the voltage reduction module does not need to be arranged, thereby the production and manufacturing cost of the battery power supply control circuit is reduced, and the market competitiveness of the product is improved.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a battery power supply control circuit and device.
Background
With the continuous development of electronic technology, portable electronic devices are applied more and more widely, and the portable electronic devices generally use batteries as a power supply, such as USB power supply devices, and generally use batteries as a power supply to output 4.75V to 5.5V to power electric devices, so as to enable the electric devices to work normally.
At present, a Universal Serial Bus (USB) power supply device usually adopts 4 batteries to output 5V voltage in series, and the voltage range of a single battery is generally between 0.8V and 1.6V, so that the voltage output by the 4 batteries in series is between 3.2V and 6.4V; in order to enable the USB power supply equipment to output 5V voltage, a boosting chip and a voltage reducing chip are usually arranged, when the voltage of 4 batteries after being connected in series exceeds 5V, the voltage reducing output is used, when the voltage of 4 batteries after being connected in series is lower than 5V, the boosting output is used, so that the requirement of the USB power supply equipment for outputting the voltage is met, but due to the fact that the boosting chip and the voltage reducing chip are required to be arranged, the production and manufacturing cost of the USB power supply equipment is greatly increased, and the market competitiveness of products is reduced.
Disclosure of Invention
Therefore, it is necessary to provide a battery-powered control circuit and device for solving the problem of high production and manufacturing costs of USB power supply equipment.
A battery-powered control circuit comprising: the device comprises a battery module, a boosting module and a battery access module; the battery module is respectively connected with the input end of the boosting module and the battery access module, and the output end of the boosting module is used for connecting a load; the battery module comprises at least four batteries, and the battery access module is used for sequentially connecting three batteries in the battery module in series.
Above-mentioned battery power supply control circuit, through setting up battery access module, in order to control the battery module in the three section battery establish ties in proper order, in the control battery module in the three section battery access circuit promptly, because the voltage range of single section battery generally is between 0.8V to 1.6V, therefore, the voltage after the three section battery establishes ties is between 2.4V to 4.8V, the voltage after the three section battery establishes ties is less than 5V, so, only need to set up the boost module, the voltage to battery module output steps up, so that the voltage of battery power supply control circuit output reaches preset voltage, need not to set up the step-down module, thereby the production manufacturing cost of battery power supply control circuit has been reduced, the market competitiveness of product has been promoted.
In one embodiment, the battery power supply control circuit further includes a voltage detection module, the voltage detection module is respectively connected to each battery, the voltage detection module is configured to detect voltage information of each battery, and the battery access module is configured to select three batteries from the battery module according to the voltage information, and sequentially connect the three selected batteries in series.
In one embodiment, the battery access module is configured to select three batteries with the closest voltages from the battery modules, and sequentially connect the three selected batteries in series.
In one embodiment, the battery access module is configured to select three batteries with the highest voltage from the battery module, and sequentially connect the three selected batteries in series.
In one embodiment, the battery access module includes a first processing unit and a battery access unit, the first processing unit is connected to the voltage detection module, the first processing unit is further connected to the battery access unit, and the first processing unit is configured to receive the voltage information, generate a corresponding control signal according to the voltage information, and send the control signal to the battery access unit, so that the battery access unit selects three batteries from the battery module and sequentially connects the three selected batteries in series.
In one embodiment, the battery access unit includes at least four first switches and at least four second switches, each battery is connected in series with one first switch to form a power supply circuit, each power supply circuit is connected in parallel with one second switch, and the power supply circuits are connected in series in sequence.
In one embodiment, each of the first switches is a switch tube, and/or each of the second switches is a switch tube.
In one embodiment, the battery power supply control circuit further includes a voltage feedback adjustment module, an input end of the voltage feedback adjustment module is connected to an output end of the voltage boost module, an output end of the voltage feedback adjustment module is connected to an adjustment end of the voltage boost module, and the voltage feedback adjustment module is configured to compare the voltage output by the voltage boost module with a preset voltage and output a corresponding adjustment signal, so that the voltage output by the voltage boost module is within a preset range.
In one embodiment, the voltage feedback regulation module comprises a voltage feedback unit and a second processing unit, an input end of the voltage feedback unit is connected with an output end of the boosting module, an output end of the voltage feedback unit is connected with an input end of the second processing unit, an output end of the second processing unit is connected with a regulation end of the boosting module, the voltage feedback unit is used for detecting the voltage output by the boosting module and sending the voltage output by the boosting module to the second processing unit, and the second processing unit compares the voltage output by the boosting module with a preset voltage and outputs a corresponding regulation signal so that the voltage output by the boosting module is within a preset range.
In one embodiment, a battery-powered control device includes the battery-powered control circuit described in any of the above embodiments.
Drawings
FIG. 1 is a block diagram of a battery power control circuit according to an embodiment of the present invention;
FIG. 2 is a block diagram of a battery power control circuit according to another embodiment of the present invention;
FIG. 3 is a block diagram of a battery power control circuit according to another embodiment of the present invention;
FIG. 4 is a circuit schematic of a battery-powered control circuit in one embodiment of the present invention;
fig. 5 is a block diagram of a battery power control circuit according to another embodiment of the present invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
For example, there is provided a battery-powered control circuit comprising: the device comprises a battery module, a boosting module and a battery access module; the battery module is respectively connected with the input end of the boosting module and the battery access module, and the output end of the boosting module is used for connecting a load; the battery module comprises at least four batteries, and the battery access module is used for sequentially connecting three batteries in the battery module in series.
Above-mentioned battery power supply control circuit, through setting up battery access module, in order to control the battery module in the three section battery establish ties in proper order, in the control battery module in the three section battery access circuit promptly, because the voltage range of single section battery generally is between 0.8V to 1.6V, therefore, the voltage after the three section battery establishes ties is between 2.4V to 4.8V, the voltage after the three section battery establishes ties is less than 5V, so, only need to set up the boost module, the voltage to battery module output steps up, so that the voltage of battery power supply control circuit output reaches preset voltage, need not to set up the step-down module, thereby the production manufacturing cost of battery power supply control circuit has been reduced, the market competitiveness of product has been promoted.
In one embodiment, referring to fig. 1, a battery-powered control circuit 10 includes: the battery access module 300 includes a battery module 100, a boosting module 200 and a battery; the battery module 100 is respectively connected with the input end of the boosting module 200 and the battery access module 300, and the output end of the boosting module is used for connecting a load; the battery module 100 is connected with the input end of the boosting module 200, the output end of the boosting module 200 is used for connecting a load 400, and the battery module 100 is connected with the battery access module 300; the battery module 100 includes at least four batteries, and the battery access module 300 is configured to serially connect three batteries in the battery module 100 in sequence.
Specifically, the battery module is connected with the input end of the boosting module, that is, three batteries are sequentially connected in series and then connected with the input end of the boosting module; the voltage boosting module is used for adjusting the voltage of the battery module to output the voltage within a preset range, namely the voltage boosting module boosts the voltage of the battery module, namely the voltage boosting module is used for boosting the voltage of three batteries in the battery module after the three batteries are connected in series, so that the voltage meeting the normal work of a load is output, and the load works normally. It should be understood that, because the voltage range of a single battery is generally between 0.8V and 1.6V, the voltage of the three batteries after being connected in series is between 2.4V and 4.8V, and the voltage of the three batteries after being connected in series is less than 5V, so that the voltage reduction module is not needed, and only the voltage boost module is needed, thereby reducing the production and manufacturing cost of the product.
Specifically, a user can control any three batteries in the battery module to be connected in series according to the self requirement, and can also control the battery access module to sequentially connect the three batteries in the battery module in series according to the voltage information of each battery in the battery module, and the battery access module can be set according to the actual requirement of the user; it should be understood that, in general, a USB power supply device generally uses 4 or more batteries as a power supply, a battery access module is used for sequentially connecting three batteries in the battery module in series, the remaining batteries are in a disconnected state, the battery after being connected in series is connected with an input end of the voltage boost module, the selected three batteries are used as a power supply, the remaining batteries are not used, and the voltage boost module is used for boosting the voltage of the battery after being connected in series to a preset range to provide a working power supply for a load; in one embodiment, the battery access module may be composed of a plurality of switches, and the connection state of each battery in the battery module is controlled by controlling the on or off of the switches.
Above-mentioned battery power supply control circuit, through setting up battery access module, in order to control the battery module in the three section battery establish ties in proper order, in the control battery module in the three section battery access circuit promptly, because the voltage range of single section battery generally is between 0.8V to 1.6V, therefore, the voltage after the three section battery establishes ties is between 2.4V to 4.8V, the voltage after the three section battery establishes ties is less than 5V, so, only need to set up the boost module, the voltage to battery module output steps up, so that the voltage of battery power supply control circuit output reaches preset voltage, need not to set up the step-down module, thereby the production manufacturing cost of battery power supply control circuit has been reduced, the market competitiveness of product has been promoted.
In order to better protect the batteries, in one embodiment, referring to fig. 2, the battery power supply control circuit 10 further includes a voltage detection module 500, the voltage detection module 500 is respectively connected to each of the batteries, the voltage detection module 500 is configured to detect voltage information of each of the batteries, and the battery access module 300 is configured to select three batteries from the battery module according to the voltage information, and sequentially connect the three selected batteries in series. In one embodiment, the voltage detection module includes at least four analog-to-digital converters, each battery is connected to one of the analog-to-digital converters, and each analog-to-digital converter is used to detect voltage information of one battery. Specifically, by arranging the voltage detection module, the voltage detection module is used for detecting the voltage information of each battery, a user can select three batteries according to the voltage information of each battery, and the battery access module is controlled to sequentially connect the three batteries in series to serve as a power supply. For example, according to the voltage information, three batteries with the closest voltages are sequentially connected in series, so that the voltages of the accessed batteries are closer to each other, the over-discharge of the batteries due to the large voltage difference of the batteries is avoided, and the batteries are protected; for another example, three batteries with the highest voltage are connected in series according to the voltage information, so that the voltage of the batteries after being connected in series is the largest, the more stable the voltage output by the battery power supply control circuit is, in addition, the over-discharge of the batteries with low capacity can be avoided, and the batteries can be better protected.
In order to better protect the battery and improve the performance of the battery, in one embodiment, the battery accessing module is configured to select three batteries with the closest voltage from the battery module, and sequentially connect the three selected batteries in series. In one embodiment, the battery access module is configured to select three batteries from the battery module, where the three batteries have voltages greater than a preset threshold and are closest to each other, and sequentially connect the three selected batteries in series. Specifically, the battery access module is configured to select three batteries with the closest voltage from the battery modules according to the voltage information, and sequentially connect the three selected batteries in series. It should be understood that when a plurality of batteries are connected in series to supply power, if the voltage difference of the batteries is larger, an over-discharge state may occur in a low-voltage battery, which affects the service life of the battery, and may consume the electric quantity of the high-voltage battery, and even a phenomenon that the high-voltage battery reversely charges the low-voltage battery may occur, thereby resulting in low battery use efficiency; therefore, the three batteries with the closest voltage are connected in series, so that the voltage difference of the selected three batteries is the minimum, the over-discharge of the batteries during working is avoided, and the service efficiency of the batteries is improved. The manner of serially connecting three batteries with the closest voltage in the battery module in this embodiment is more suitable for the case of a large number of batteries in the battery module, for example, the number of batteries is greater than or equal to 5 knots.
In order to improve the battery use efficiency and the stability of the output voltage of the battery power supply control circuit, in one embodiment, the battery access module is configured to select three batteries with the highest voltage from the battery module, and sequentially connect the three selected batteries in series. Specifically, the battery access module is configured to select, according to the voltage information, three batteries with the highest voltage from the battery module, and sequentially connect the selected three batteries in series. The method comprises the steps of sorting the voltages of the batteries from high to low according to the voltage information of the batteries, selecting the batteries with the first three voltages, and connecting the batteries in series in sequence through a battery access module. It should be understood that, the higher the voltage of the battery is, the smaller the internal resistance of the battery is, the higher the voltage is, the three batteries with the highest voltage are selected to be connected in series in sequence, so that the internal resistance of the battery after being connected in series is the minimum, and the internal resistance loss electric energy of the battery is relatively small when the battery is used, thereby improving the use efficiency of the battery; in addition, three batteries with the highest voltage are selected to be connected in series, and the total voltage of the batteries after being connected in series is relatively higher so as to provide sufficient electric energy and improve the stability of the output voltage of the battery power supply control circuit. The method of serially connecting three batteries with the highest voltage in the battery module in sequence in this embodiment is more suitable for the case of a small number of batteries in the battery module, for example, the number of batteries is 4.
In order to facilitate a user to control the battery access module to serially connect the batteries in sequence, in one embodiment, please refer to fig. 3, the battery access module 300 includes a first processing unit 310 and a battery access unit 320, the first processing unit 310 is connected to the voltage detection module 500, the first processing unit 310 is further connected to the battery access unit 320, and the first processing unit 310 is configured to receive the voltage information, generate a corresponding control signal according to the voltage information, and send the control signal to the battery access unit, so that the battery access unit selects three batteries from the battery module and serially connects the selected three batteries in sequence. In one embodiment, the first processing unit is configured to receive the voltage information, generate a corresponding control signal according to the voltage information, and send the control signal to a battery access unit, so that the battery access unit selects three batteries with the highest voltage from the battery module, and sequentially connects the three selected batteries in series. In one embodiment, the first processing unit is configured to receive the voltage information, generate a corresponding control signal according to the voltage information, and send the control signal to a battery access unit, so that the battery access unit selects three batteries with the closest voltage from the battery module, and sequentially connects the three selected batteries in series. Specifically, the first processing unit is connected to the voltage detection module, and the first processing unit is further connected to the battery access unit, that is, the input end of the first processing unit is connected to the voltage detection module, and the output end of the first processing unit is connected to the battery access unit. First processing unit is used for receiving voltage signal, according to voltage signal generates corresponding control signal, and will control signal sends to battery access unit, so that battery access unit will the three section in the battery module the battery is established ties in proper order, for example, battery access unit comprises the switch, and first processing unit sends the control signal who corresponds to each switch respectively to control switching on or breaking block of each switch, so that the three section in the battery module the battery is established ties in proper order, thereby need not user manual control three section batteries and establish ties in proper order, so that the user uses. It should be understood that, a user may burn a corresponding program into the first processing unit in advance according to actual requirements, and the first processing unit generates a corresponding control signal after receiving a voltage signal according to the burned program, and sends the control signal to the battery access unit, so that the battery access unit selects three batteries with the highest voltage from the battery module, or selects three batteries with the closest voltage, and sequentially connects the selected three batteries in series.
In order to better enable the battery access module to sequentially connect three batteries in series, in one embodiment, the battery access unit includes at least four first switches and at least four second switches, each battery is connected in series with one first switch to form a power supply circuit, each power supply circuit is connected in parallel with one second switch, and each power supply circuit is sequentially connected in series. Specifically, each of the power supply circuits is connected in series in sequence and then connected to the input terminal of the boost module, each of the power supply circuits is connected in parallel to one of the second switches, that is, the second switches are connected in parallel to both ends of the power supply circuit, and the specific connection manner of the power supply circuits is as shown in reference numeral 800 in fig. 4, so that the three batteries in the battery module are controlled to be connected in series in sequence by controlling the on or off states of the first switch and the second switch. In one embodiment, each of the first switches is a switch tube, and/or each of the second switches is a switch tube; in one embodiment, each of the first switches is a metal-oxide-semiconductor (MOS) transistor, and/or each of the second switches is a MOS transistor. By arranging the battery access unit, when a user needs to control the three batteries to be sequentially connected in series, the corresponding first switch connected with the batteries needing to be connected in series is controlled to be switched on, the corresponding second switch connected with the batteries needing to be connected in series is controlled to be switched off, the corresponding first switch connected with the batteries needing not to be connected in series is controlled to be switched off, and the corresponding second switch connected with the batteries needing to be connected in series is switched on to control the three batteries in the battery module to be sequentially connected in series.
In order to better understand the disclosure of the above embodiments, in one embodiment, please refer to fig. 4, the battery module includes four batteries, which are a battery BAT1, a battery BAT2, a battery BAT3, and a battery BAT4, the battery access unit includes four first switches and four fourth switches, the four first switches are a switch K1, a switch K2, a switch K3, and a switch K4, the four second switches are a switch S1, a switch S2, a switch S3, and a switch S4, the negative electrode of the battery BAT1 is used for grounding, the positive electrode of the battery BAT 24 is connected to the first end of the switch K1, the second end of the switch K1 is connected to the first end of the battery BAT2 and the first end of the switch S1, the second end of the switch S1 is connected to the negative electrode of the battery BAT1, the positive electrode of the battery BAT2 is connected to the first end of the switch BAT2, and the negative electrode of the switch S867 is connected to the second end of the switch S3, the second end of the switch S2 is connected with the negative electrode of the battery BAT2, the positive electrode of the battery BAT3 is connected with the first end of the switch K3, the second end of the switch K3 is respectively connected with the negative electrode of the battery BAT4 and the first end of the switch S3, the second end of the switch S3 is connected with the negative electrode of the battery BAT3, the positive electrode of the battery BAT4 is connected with the first end of the switch K4, the second end of the switch K4 is respectively connected with the input end of the boosting module and the first end of the switch S4, and the second end of the switch S4 is connected with the negative electrode of the battery BAT 4. The switch K4 and the battery BAT4 form a power supply circuit 800, so that when a user needs to connect the battery BAT1, the battery BAT2 and the battery BAT3 in series in sequence, the switch K1, the switch K2, the switch K3 and the switch S4 are only required to be controlled to be turned on, and the switch S1, the switch S2, the switch S3 and the switch K4 are only required to be controlled to be turned off, when the user needs to connect the battery BAT1, the battery BAT2 and the battery BAT4 in series in sequence, the switch K1, the switch K2, the switch S3 and the switch K4 are only required to be controlled to be turned on, and the switch S1, the switch S2, the switch K3 and the switch S4 are only required to be turned off, and the connection conditions of other batteries are analogized in sequence, which.
In one embodiment, the battery access module is a lead, and the selected batteries are sequentially connected in series through the lead, so that three batteries in the battery module can be sequentially connected in series.
In order to better enable the voltage output by the battery power supply control circuit to be within the preset range and improve the stability of the voltage output by the battery power supply control circuit, in one embodiment, please refer to fig. 5, the battery power supply control circuit 10 further includes a voltage feedback adjusting module 700, an input end of the voltage feedback adjusting module 700 is connected to an output end of the voltage boosting module 200, an output end of the voltage feedback adjusting module 700 is connected to an adjusting end of the voltage boosting module 200, and the voltage feedback adjusting module 700 is configured to compare the voltage output by the voltage boosting module with a preset voltage and output a corresponding adjusting signal, so that the voltage output by the voltage boosting module 200 is within the preset range. It should be understood that the boost module can adopt the boost circuit that MOS pipe and inductance are constituteed, also can adopt the boost circuit that the boost chip is constituteed, through PWM (Pulse Width Modulation ) Pulse signal, can realize the regulation to boost module output voltage, through setting up voltage feedback regulation module to carry out feedback regulation to the voltage of boost module output, in order to guarantee that the voltage of boost module output is in predetermineeing the within range, it is the voltage of battery power supply control circuit output that better is in predetermineeing the within range, promote battery power supply control circuit output voltage's stability.
In one embodiment, the voltage feedback regulation module comprises a voltage feedback unit and a second processing unit, an input end of the voltage feedback unit is connected with an output end of the boosting module, an output end of the voltage feedback unit is connected with an input end of the second processing unit, an output end of the second processing unit is connected with a regulation end of the boosting module, the voltage feedback unit is used for detecting the voltage output by the boosting module and sending the voltage output by the boosting module to the second processing unit, and the second processing unit compares the voltage output by the boosting module with a preset voltage and outputs a corresponding regulation signal so that the voltage output by the boosting module is within a preset range. In one embodiment, the voltage feedback unit is a voltage dividing resistor, and in another embodiment, the voltage feedback unit is an analog-to-digital converter. Specifically, by detecting the voltage output by the boost module, the second processing unit compares the detected voltage with a preset voltage and outputs a corresponding adjusting signal, for example, a PWM pulse signal, so as to perform feedback adjustment on the output voltage of the boost module, so that the voltage output by the boost module is within a preset range. It can be understood that the first processing unit and the second processing unit may be the same processing unit, or may be different processing units, and may be set according to actual needs of customers.
In one embodiment, the voltage feedback adjustment module comprises a voltage comparison unit and a second processing unit, the first input end of the voltage comparison unit is connected with the output end of the boosting module, the second output end of the voltage comparison unit is used for connecting a reference power supply, the output end of the voltage comparison unit is connected with the input end of the second processing unit, the output end of the second processing unit is connected with the regulating end of the boosting module, the voltage feedback module is used for detecting the voltage output by the boosting module, comparing the voltage output by the boosting module with a reference and outputting a corresponding comparison signal, and sending the comparison signal to the second processing unit, wherein the second processing unit is used for outputting a corresponding adjusting signal according to the comparison signal so as to enable the voltage output by the boosting module to be within a preset range. By arranging the voltage feedback adjusting module, the voltage output by the boosting module can be adjusted.
In one embodiment, a battery-powered control device is provided, which includes the battery-powered control circuit described in any of the above embodiments. The battery power supply circuit includes: the device comprises a battery module, a boosting module and a battery access module; the battery module is connected with the input end of the boosting module, the output end of the boosting module is used for connecting a load, and the battery module is connected with the battery access module; the battery module comprises at least four batteries, and the battery access module is used for sequentially connecting three batteries in the battery module in series.
Above-mentioned battery power supply control device, through setting up battery access module, in order to control the battery module in the three section battery establish ties in proper order, in the control battery module three section battery access circuit promptly, because the voltage range of single section battery is generally between 0.8V to 1.6V, therefore, the voltage after the three section battery establishes ties is between 2.4V to 4.8V, the voltage after the three section battery establishes ties is less than 5V, so, only need to set up the boost module, step up the voltage of battery module output, so that the voltage that makes battery power supply control circuit output reaches preset voltage, need not to set up the step-down module, thereby the production manufacturing cost of battery power supply control circuit has been reduced, the market competitiveness of product has been promoted.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A battery-powered control circuit, comprising: the device comprises a battery module, a boosting module and a battery access module;
the battery module is respectively connected with the input end of the boosting module and the battery access module, and the output end of the boosting module is used for connecting a load;
the battery module comprises at least four batteries, and the battery access module is used for selecting three batteries from the battery module and sequentially connecting the selected three batteries in series.
2. The battery power supply control circuit according to claim 1, further comprising a voltage detection module, wherein the voltage detection module is respectively connected to each of the batteries, the voltage detection module is configured to detect voltage information of each of the batteries, and the battery access module is configured to select three batteries from the battery module according to the voltage information, and sequentially connect the selected three batteries in series.
3. The battery power supply control circuit according to claim 2, wherein the battery access module is configured to select three batteries with the closest voltage from the battery modules, and sequentially connect the three selected batteries in series.
4. The battery power supply control circuit according to claim 2, wherein the battery access module is configured to select three batteries with the highest voltage from the battery module, and sequentially connect the three selected batteries in series.
5. The battery power supply control circuit according to claim 2, wherein the battery access module includes a first processing unit and a battery access unit, the first processing unit is connected to the voltage detection module, the first processing unit is further connected to the battery access unit, and the first processing unit is configured to receive the voltage information, generate a corresponding control signal according to the voltage information, and send the control signal to the battery access unit, so that the battery access unit selects three batteries from the battery module and sequentially connects the three selected batteries in series.
6. The battery-powered control circuit of claim 5, wherein the battery-accessing unit comprises at least four first switches and at least four second switches, each of the batteries is connected in series with one of the first switches to form a power supply circuit, each of the power supply circuits is connected in parallel with one of the second switches, and each of the power supply circuits is connected in series.
7. The battery-operated control circuit according to claim 6, wherein each of the first switches is a switch tube, and/or each of the second switches is a switch tube.
8. The battery power supply control circuit according to any one of claims 1 to 7, further comprising a voltage feedback regulation module, wherein an input end of the voltage feedback regulation module is connected to an output end of the voltage boost module, an output end of the voltage feedback regulation module is connected to a regulation end of the voltage boost module, and the voltage feedback regulation module is configured to compare a voltage output by the voltage boost module with a preset voltage and output a corresponding regulation signal, so that the voltage output by the voltage boost module is within a preset range.
9. The battery power supply control circuit according to claim 8, wherein the voltage feedback regulation module comprises a voltage feedback unit and a second processing unit, an input end of the voltage feedback unit is connected with an output end of the voltage boost module, an output end of the voltage feedback unit is connected with an input end of the second processing unit, an output end of the second processing unit is connected with a regulation end of the voltage boost module, the voltage feedback unit is configured to detect a voltage output by the voltage boost module and send the voltage output by the voltage boost module to the second processing unit, and the second processing unit compares the voltage output by the voltage boost module with a preset voltage and outputs a corresponding regulation signal, so that the voltage output by the voltage boost module is within a preset range.
10. A battery-powered control device comprising a battery-powered control circuit as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910992355.6A CN110797939A (en) | 2019-10-18 | 2019-10-18 | Battery power supply control circuit and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910992355.6A CN110797939A (en) | 2019-10-18 | 2019-10-18 | Battery power supply control circuit and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110797939A true CN110797939A (en) | 2020-02-14 |
Family
ID=69439336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910992355.6A Pending CN110797939A (en) | 2019-10-18 | 2019-10-18 | Battery power supply control circuit and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110797939A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002063943A (en) * | 2000-08-22 | 2002-02-28 | Shin Kobe Electric Mach Co Ltd | Sealed lead acid battery |
| CN204633353U (en) * | 2015-04-13 | 2015-09-09 | 许昌学院 | A kind of power-supply system of series connection |
| CN205039702U (en) * | 2014-09-17 | 2016-02-17 | 意法半导体股份有限公司 | Booster converter and relevant integrated circuit |
| US20170063108A1 (en) * | 2015-08-28 | 2017-03-02 | Dell Products L.P. | Systems and methods for hidden battery cell charging and conditioning |
| US20170346334A1 (en) * | 2016-05-25 | 2017-11-30 | Milwaukee Electric Tool Corporation | Series-connected battery packs, system and method |
-
2019
- 2019-10-18 CN CN201910992355.6A patent/CN110797939A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002063943A (en) * | 2000-08-22 | 2002-02-28 | Shin Kobe Electric Mach Co Ltd | Sealed lead acid battery |
| CN205039702U (en) * | 2014-09-17 | 2016-02-17 | 意法半导体股份有限公司 | Booster converter and relevant integrated circuit |
| CN204633353U (en) * | 2015-04-13 | 2015-09-09 | 许昌学院 | A kind of power-supply system of series connection |
| US20170063108A1 (en) * | 2015-08-28 | 2017-03-02 | Dell Products L.P. | Systems and methods for hidden battery cell charging and conditioning |
| US20170346334A1 (en) * | 2016-05-25 | 2017-11-30 | Milwaukee Electric Tool Corporation | Series-connected battery packs, system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102120797B1 (en) | Battery charging-discharging apparatus and method | |
| DE112010001505B4 (en) | Power management circuit for a battery pack | |
| EP2302757B1 (en) | Method and system for balancing electrical energy storage cells | |
| US20170288417A1 (en) | Fast Charging Apparatus and Method | |
| CN103107562B (en) | Switch charging circuit and power management system | |
| US9537329B2 (en) | Battery management circuit maintaining cell voltages between a minimum and a maximum during charging and discharging | |
| US8222867B2 (en) | Battery charging and discharging apparatus and method | |
| CN101345432A (en) | Method of charging a battery array | |
| CN204316150U (en) | A kind of circuit extending series-connected batteries useful life | |
| WO2013048539A1 (en) | Voltage management device for a stacked battery | |
| CN110165888A (en) | Three level Boost circuits, multiple-channel output parallel system | |
| CN113067385A (en) | Battery unit charging and discharging device | |
| CN112993418B (en) | Energy storage system | |
| CN116707051A (en) | Dual-battery charge-discharge circuit, dual-battery charge-discharge method, electronic device and medium | |
| CN102025174B (en) | Novel charger capable of automatically regulating output based on voltage of battery | |
| CN1126223C (en) | Charging and discharging control circuit and charging type power supply device | |
| CN110797939A (en) | Battery power supply control circuit and device | |
| CN214755608U (en) | Battery unit charging and discharging device | |
| CN105515121A (en) | Balanced cascade structure, battery pack of balanced cascade structure and charge and discharge method of battery pack | |
| CN212210579U (en) | Farad capacitor battery for power distribution terminal | |
| CN211046540U (en) | Battery pack charging device | |
| CN111190118A (en) | Battery management system and fault detection circuit of switch module grid driving voltage thereof | |
| US20240006874A1 (en) | Direct current/direct current converter and control method thereof | |
| EP4228120A1 (en) | Power system, charging method, and discharging method | |
| US20230275445A1 (en) | Battery Power Supply Device and Battery Power Supply System |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200214 |