CN110460137B - Control device and electronic apparatus - Google Patents
Control device and electronic apparatus Download PDFInfo
- Publication number
- CN110460137B CN110460137B CN201910864042.2A CN201910864042A CN110460137B CN 110460137 B CN110460137 B CN 110460137B CN 201910864042 A CN201910864042 A CN 201910864042A CN 110460137 B CN110460137 B CN 110460137B
- Authority
- CN
- China
- Prior art keywords
- battery
- battery pack
- module
- transistor
- state
- 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.)
- Active
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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0024—Parallel/serial switching of connection of batteries to charge or load circuit
Abstract
The present disclosure relates to a control device and an electronic apparatus, the device including: a battery module including a plurality of battery packs connected in series, each battery pack including one or more than two batteries; a switch module electrically connected to the battery module; the control module is electrically connected to the battery module and the switch module, and is used for: detecting the battery state of each battery pack in the battery module; and controlling the conduction state of the switch module according to the battery state of each battery pack so as to control the work of each battery pack. Through the device, this disclosure can detect the battery state of every group battery in the battery module to according to the battery state control of every group battery the conducting state of switch module to the work of every group battery is controlled, thereby avoids leading to whole battery module's unusual work because of the individual difference of single group battery, can improve the work efficiency of every group battery in the battery module.
Description
Technical Field
The present disclosure relates to the field of integrated circuit technologies, and in particular, to a control device and an electronic apparatus.
Background
At present, batteries are charged in series, and because the internal resistances of the single batteries are different, the damage of the single batteries is inconsistent along with the increase of the service time, so that the capacities of the single batteries are also different. When the series charging is adopted, the batteries with larger loss and smaller capacity are easily overshot to cause explosion or fire due to the difference of the battery capacities. Or, the discharge is terminated due to premature discharge of a battery having a small capacity when discharging, resulting in a limitation in the discharge capacity of the entire battery pack.
Disclosure of Invention
In view of this, the present disclosure proposes a control device, the device comprising:
a battery module including a plurality of battery packs connected in series, each battery pack including one or more than two batteries;
a switch module electrically connected to the battery module;
the control module is electrically connected to the battery module and the switch module, and is used for:
detecting the battery state of each battery pack in the battery module;
and controlling the conduction state of the switch module according to the battery state of each battery pack so as to control the work of each battery pack.
In one possible embodiment, the control module is further configured to:
determining a charging voltage according to the number of battery packs to be charged of the battery module;
and outputting a charging voltage to charge the battery pack of the battery module.
In one possible embodiment, the control module is further configured to:
and determining the number of the battery packs to be charged of the battery module according to the battery state of each battery pack.
In one possible embodiment, determining the number of battery packs to be charged of the battery module according to the battery state of each battery pack includes:
determining a number of battery packs to be charged of the battery module as: the total number of battery packs minus the number of battery packs in a state of charge completion.
In a possible embodiment, the determining the charging voltage according to the number of battery packs to be charged of the battery module includes:
determining the charging voltage according to the following formula:
vout ═ N-q × Vm, where N denotes the total number of battery packs in the battery module, q denotes the number of battery packs in a state of charge completion, Vm denotes the rated charge voltage of each battery pack, and Vout denotes the charge voltage.
In one possible embodiment, the detecting the battery state of each battery pack in the battery module includes:
and acquiring the voltage difference between the positive end and the negative end of each battery pack, comparing the voltage difference with a threshold voltage, and determining the battery state of each battery pack according to the comparison result.
In one possible embodiment, the controlling the conducting state of the switch module according to the battery state of each battery pack to control the operation of each battery pack includes:
when the battery pack is in a charging completion state or a discharging completion state, the battery pack in the charging completion state or the discharging completion battery pack is not connected in series with another battery pack.
In one possible embodiment, the control module is configured to output a switch control signal, the switch module includes a plurality of switch units, each switch unit controls a corresponding battery pack, and each switch unit includes a first transistor, a second transistor, a third transistor, a first resistor, a second resistor, and a diode,
the grid electrode of the first transistor is used for receiving the switch control signal output by the control module, the source electrode of the first transistor is grounded, the drain electrode of the first transistor is electrically connected with the grid electrode of the second transistor, the first end of the first resistor, the first end of the second resistor and the negative electrode end of the diode,
the second end of the first resistor is electrically connected with the source end of the second transistor and the drain end of the third transistor, the drain of the second transistor is electrically connected with the cathode end of the battery pack,
a gate of the third transistor is electrically connected to the second terminal of the second resistor and the positive terminal of the diode, a source terminal of the third transistor is electrically connected to the positive electrode of the battery pack,
and the positive terminal of the battery pack is used for receiving charging voltage.
In a possible implementation manner, in the case that the battery pack is in a charging completion state or a discharging completion state, the switch control signal is used for controlling the first transistor and the second transistor to be turned on and controlling the third transistor to be turned off so as to control the battery pack to stop charging or discharging;
when the battery pack is in a charging state or a discharging state, the switch control signal is used for controlling the first transistor and the second transistor to be switched off and controlling the third transistor to be switched on so as to charge or discharge the battery pack.
According to another aspect of the present disclosure, an electronic device is presented, the device comprising:
the control device.
Through the device, this disclosure can detect the battery state of every group battery in the battery module to according to the battery state control of every group battery the conducting state of switch module to the work of every group battery is controlled, thereby avoids leading to whole battery module's unusual work because of the individual difference of single group battery, can improve the work efficiency of every group battery in the battery module.
Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.
Fig. 1 shows a block diagram of a control device according to an embodiment of the present disclosure.
Fig. 2 shows a schematic diagram of a control device according to an embodiment of the present disclosure.
Detailed Description
Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.
Referring to fig. 1, fig. 1 shows a block diagram of a control device according to an embodiment of the present disclosure.
As shown in fig. 1, the apparatus includes:
a battery module 10 including a plurality of battery packs connected in series, each battery pack including one or more than two batteries;
a switch module 20 electrically connected to the battery module 10;
a control module 30 electrically connected to the battery module 10 and the switch module 20, the control module 30 being configured to:
detecting the battery state of each battery pack in the battery module 10;
the on state of the switch module 20 is controlled according to the battery state of each battery pack to control the operation of each battery pack.
Through the device, this disclosure can detect the battery state of every group battery in the battery module to according to the battery state control of every group battery the conducting state of switch module to the work of every group battery is controlled, thereby avoids leading to whole battery module's unusual work because of the individual difference of single group battery, can improve the work efficiency of every group battery in the battery module.
In one possible embodiment, controlling the operation of each battery pack includes controlling the charging and discharging manner of each battery pack, and may include controlling each battery pack to be in one of normal charging, normal discharging, stop charging, and stop discharging.
In one possible embodiment, each battery pack in the battery module 10 may be connected in series.
In a possible embodiment, in the case that the battery pack includes a plurality of batteries, each battery in the battery pack may be connected in series, in parallel, or in a combination of series and parallel.
The present disclosure does not limit the specific number of battery packs, does not limit the number of batteries in the battery packs, and one skilled in the art can determine the number as desired.
In one possible embodiment, the switch module 20 may include a plurality of switch units, each for controlling the operation of each battery pack.
In one example, each switch unit may be connected to a corresponding battery pack, and by controlling the operation of the switch unit connected to the battery pack, the battery pack may be controlled to be no longer connected in series with other battery packs in the battery module 10, thereby stopping the charging or discharging of the battery pack.
In one example, when the battery module 10 is in normal charging, the control module 30 may control the switching unit such that the battery pack controlled by the switching unit is no longer connected in series with other battery packs in the battery module 10, in which case the control module 30 only charges the battery packs connected in series.
In one example, when the battery module 10 is normally discharged, the control module 30 may control the switching unit such that the switching unit is no longer connected in series with other battery packs in the battery module 10, in which case the control module 30 discharges only the battery packs connected in series.
In one possible embodiment, the control module 30 may be further configured to:
determining a charging voltage according to the number of battery packs to be charged of the battery module 10;
the output charging voltage charges the battery pack of the battery module 10.
With the above apparatus, the embodiment of the present disclosure may determine the charging voltage according to the number of the battery packs to be charged of the battery module 10, and output the charging voltage to charge the battery packs of the battery module 10, thereby increasing flexibility of the apparatus and avoiding overcharging the battery packs in the battery module 10.
In one example, when the number of battery packs to be charged in the battery module 10 changes, the charging voltage may be newly determined and the newly determined charging voltage may be output to charge the other battery packs in the battery module 10.
In one possible embodiment, the control module 30 may be further configured to:
the number of battery packs to be charged of the battery module 10 is determined according to the battery state of each battery pack.
With the above apparatus, the embodiment of the present disclosure detects the battery state of each battery pack, and determines the number of battery packs to be charged of the battery module according to the battery state of each battery pack.
In one possible embodiment, determining the number of battery packs to be charged of the battery module 10 according to the battery state of each battery pack may include:
the number of battery packs to be charged of the battery module 10 is determined as: the total number of battery packs minus the number of battery packs in a state of charge completion.
In one example, when the control module 30 detects that there are battery packs in the charge complete state, the number of battery packs in the charge complete state may be subtracted from the total number of battery packs to be charged, thereby determining the number of battery packs to be charged.
In a possible embodiment, the determining the charging voltage according to the number of battery packs to be charged of the battery module 10 may include:
determining the charging voltage according to the following formula:
vout ═ N-q × Vm, where N denotes the total number of battery packs in the battery module 10, q denotes the number of battery packs in a state of charge completion, Vm denotes the rated charge voltage of each battery pack, and Vout denotes the charge voltage.
In one possible embodiment, the control module 30 may also detect the charging current and monitor the charging current. The following will be explained with reference to specific examples. With the above arrangement, the embodiment of the present disclosure may detect the battery state of the battery pack in the battery module 10, and determine the number of batteries to be charged according to the detection result to determine the charging voltage to charge the battery module 10. In this way, the embodiment of the present disclosure may adaptively adjust the magnitude of the charging voltage according to the battery state of the battery pack in the battery module 10 to avoid overcharging the charging module 10, so that the overshoot protection may be implemented to improve the life of the battery.
In a possible embodiment, the detecting the battery state of each battery pack in the battery module 10 may include:
and acquiring the voltage difference between the positive end and the negative end of each battery pack, comparing the voltage difference with a threshold voltage, and determining the battery state of each battery pack according to the comparison result.
The threshold voltage includes a threshold voltage in a charging case and a threshold voltage in a discharging case. The threshold voltage may be determined according to a specific battery pack, and the threshold voltage of each battery pack is not limited in the embodiment of the present disclosure.
In one example, in the case of charging, when the voltage difference across the battery pack is less than a threshold voltage of charging, the battery state of the battery pack may be determined to be a charged state.
In one example, in the case of charging, when a voltage difference across the battery pack is greater than or equal to a threshold voltage of charging, the battery state of the battery pack may be determined to be a charge completion state.
In one example, in a discharging situation, when the voltage difference across the battery pack is greater than a threshold voltage in the discharging situation, the battery state of the battery pack may be determined to be a discharged state.
In one example, in the case of discharge, when the voltage difference across the battery pack is less than or equal to the threshold voltage in the case of discharge, the battery state of the battery pack may be determined to be a discharge completion state.
Through the above device, the embodiment of the present disclosure may acquire a voltage difference between the positive terminal and the negative terminal of each battery pack, compare the voltage difference with a threshold voltage, and determine the battery state of each battery pack according to the comparison result.
In a possible embodiment, the controlling the conducting state of the switch module 20 according to the battery state of each battery pack to control the operation of each battery pack may include:
when the battery pack is in a charging completion state or a discharging completion state, the battery pack in the charging completion state or the discharging completion battery pack is not connected in series with another battery pack.
Through the device, under the condition that the battery pack is in the charging completion state or the discharging completion state, the battery pack in the charging completion state or the battery pack after discharging is not connected with other battery packs in series, so that the phenomenon that some battery packs are continuously charged after charging is completed to cause overcharging or the phenomenon that some batteries influence the discharging of other batteries after discharging is completed is avoided, and therefore, the battery module 10 can be ensured to realize the charging completion of each battery pack in the battery module, and the discharging completion of each battery pack is ensured to improve the working efficiency of the battery module.
A possible implementation of the control device is described below.
Referring to fig. 2, fig. 2 is a schematic diagram of a control device according to an embodiment of the disclosure.
In one possible implementation, as shown in FIG. 2, the control module 30 may include a control sub-module 310 and a power supply sub-module 320.
In a possible embodiment, the control sub-module 310 may be implemented by general-purpose chips such as a microcontroller MCU, a central processing unit CPU, a digital signal processor DSP, and a programmable gate array FPGA, or may be implemented by a specially designed special chip, which is not limited in this disclosure.
In one possible embodiment, the power supply module 320 may be implemented by a direct current-direct current converter (DC-DC) or an alternating current-direct current converter (AC-DC), as long as a stable direct current voltage signal can be output.
In one possible embodiment, the battery module 10 may include a plurality of battery packs 110 connected in series.
As shown in fig. 2, each battery pack 110 may include one battery BAT or several batteries connected in parallel.
In one possible embodiment, the control module 30 is configured to output switch control signals (CH 1-CHn), and the switch module 20 may include a plurality of switch units 210, each switch unit 210 controlling a corresponding battery pack, and each switch unit including a first transistor, a second transistor, a third transistor, a first resistor, a second resistor, and a diode.
For example, as shown in fig. 2, in the switch unit 210, the gate G of the first transistor Q1 is used for receiving the switch control signal CH1 outputted by the control module 30, the source S of the first transistor Q1 is grounded, the drain D of the first transistor Q1 is electrically connected to the gate G of the second transistor QQ1, the first end of the first resistor R1, the first end of the second resistor RR1, and the negative end of the diode D1,
a second terminal of the first resistor R1 is electrically connected to the source terminal S of the second transistor QQ1 and the drain terminal D of the third transistor QQ1, a drain of the second transistor QQ1 is electrically connected to the negative terminal of the battery BAT1,
a gate G of the third transistor QQQ1 is electrically connected to the second terminal of the second resistor RR1 and the positive terminal of the diode D1, a source terminal S of the third transistor QQQ1 is electrically connected to the positive electrode of the battery pack BAT1,
the positive terminal of the battery pack BAT1 is for receiving a charging voltage.
In various embodiments of the present disclosure, the second resistor RR1 and the diode D1 may be used to control the accelerated turn-off and delayed turn-on of the third transistor QQQ1, so as to prevent the short circuit of the battery pack BAT1 during the switching process of the turn-on and turn-off of the third transistor qq1, and prevent the battery pack BAT1 from being damaged due to the short circuit.
The device may further include a resistor R0, a first terminal of the resistor R0 is electrically connected to the power supply sub-module 320 and the control sub-module 310, and a second terminal of the resistor R0 is electrically connected to a drain terminal D of the third transistor QQQ1 and the control sub-module 310.
The VP terminal and the VN terminal of the control submodule 310 respectively obtain the voltage of the first terminal and the voltage of the second terminal of the resistor R0, so as to monitor the charging current.
In one possible embodiment, the charging current may be determined according to the following formula:
i ═ VP/R0, where VP represents the voltage at the first end of resistor R0, VN represents the voltage at the second end of resistor R0, R0 represents the resistance of resistor R0, and I represents the charging current.
Through the mode, the charging current of the battery module can be monitored, so that the charging current is controlled, and the battery is prevented from overshooting or over-discharging.
Of course, the above description is exemplary, and the resistor R0 for current detection may be replaced by a resistor network composed of a plurality of resistors, or a specially designed current detection unit, and the disclosure is not limited thereto.
In a possible implementation, in the case that the battery pack BAT1 is in the charge completion state or the discharge completion state, the switch control signal CH1 is used for controlling the first transistor Q1 and the second transistor QQ1 to be turned on and controlling the third transistor QQ1 to be turned off so as to control the battery pack BAT1 to stop charging or discharging;
when the battery pack BAT1 is in a charging state or a discharging state, the switch control signal CH1 is used to control the first transistor Q1 and the second transistor QQ1 to be turned off, and to control the third transistor QQ1 to be turned on, so as to charge or discharge the battery pack.
In one possible embodiment, as shown in fig. 2, the control sub-module 310 includes a plurality of voltage detection terminals (ADC1-ADC2N, where N may be greater than or equal to the number N of battery packs), for example, the voltage detection terminal ADC1 is configured to detect the voltage of the positive terminal of the battery pack BAT1, the voltage detection terminal ADC2 is configured to detect the voltage of the negative terminal of the battery pack BAT1, the control sub-module 310 may determine that the battery pack BAT1 is in a charging state, a discharging state, a charge completion state, or a discharge completion state according to "obtaining a voltage difference between the positive terminal and the negative terminal of each battery pack, comparing the voltage difference with a threshold voltage, and determining the battery state of each battery pack according to the comparison result", so as to output the switch control signal CH1 to control the on state of the switch unit 210.
The charging process of the battery is generally divided into three stages of trickle, constant current and constant voltage. The battery is generally charged with a constant voltage when it is near a full charge. The switch Q corresponding to the unit battery pack is turned off at the time of normal charging and discharging.
In the constant voltage charging stage, the battery pack is charged by the output voltage N × Vm of the U1, and the charging time of each battery pack is different due to the difference of individual battery packs. When the ith (i is less than or equal to N) battery pack is fully charged, the control submodule 310 may control the ith switch unit, so that the ith battery pack is no longer connected in series with other battery packs, and at this time, the control submodule 310 may adjust the output voltage of the power supply submodule.
In one example, when the control sub-module 310 determines that the battery pack BAT1 is in a charging state (the voltage across the battery pack BAT1 is less than the threshold voltage of charging), the first transistor Q1 is controlled to be turned off, the second transistor QQ1 is turned off, the third transistor QQ1 is turned on, the control sub-module 310 determines a charging voltage according to the number of battery packs to be charged currently, and the power supply sub-module 320 is controlled to output the charging voltage to charge the battery module 10.
When the control sub-module 310 determines that the battery pack BAT1 is in the charging completion state (the voltage across the battery pack BAT1 is equal to or greater than the charging threshold voltage), the first transistor Q1 is controlled to be turned on, the second transistor QQ1 is turned on, the third transistor QQ1 is turned off, the control sub-module 310 determines the charging voltage according to the number (the total number is reduced by one) of the battery packs to be charged currently, and controls the power supply sub-module 320 to output the charging voltage to charge the battery module 10, in which case, the battery pack BAT1 is controlled by the switch unit 210 to be no longer connected in series with other battery packs and no longer to be charged continuously.
As more and more battery packs are fully charged, the output voltage of the power supply module 320 becomes lower and lower until the last battery pack is fully charged, and then the charging loop is closed, at which time the switching units of all the battery packs are turned off and the battery module 10 is in the discharging loop.
The control sub-module 310 may control the battery module 10 to discharge when all the battery packs of the battery module 10 are in the charge complete state.
In the discharging process, due to the individual difference of the battery packs, the capacity of a certain battery pack may be relatively low, and the capacity of the battery pack may gradually decrease with the aging of the battery pack, and when the discharging voltage of the kth battery pack (k is less than or equal to N) is lower than the lowest discharging voltage (discharging threshold voltage), the control submodule 310 controls the kth switching unit, so that the kth battery pack is no longer connected in series with other battery packs, and thus the kth battery pack is prevented from over-discharging, and thus the discharging of other battery packs is not affected, and the discharging capability of the whole battery module is increased.
In one example, when the control sub-module 310 determines that the battery pack BAT1 is in a discharged state (the voltage across the battery pack BAT1 is greater than the threshold voltage for discharging), the first transistor Q1 is controlled to be turned off, the second transistor QQ1 is turned off, the third transistor QQ1 is turned on, and the battery module 10 is discharged.
When the control submodule 310 determines that the battery pack BAT1 is in the discharge complete state (the voltage across the battery pack BAT1 is equal to or less than the threshold voltage of charging), the first transistor Q1 is controlled to be turned on, the second transistor QQ1 is turned on, the third transistor QQ1 is turned off, and the other battery packs (BAT2 to BATn) of the battery module 10 are discharged, in which case, the battery pack BAT1 is controlled by the switch unit 210 to be no longer connected in series with the other battery packs, so as to avoid affecting the discharge of the other battery packs.
Of course, in other embodiments, the control device may further include other switches for changing the connection relationship of the battery packs, for example, in the battery module 10, the connection relationship of each battery pack may be changed as needed: when the battery packs of the battery module 10 need to be charged, the switch can control the battery packs to be in a series connection relationship; when the battery module 10 is discharged, the respective battery packs may be controlled to be in a parallel connection relationship by the switches. Thus, the embodiment of the disclosure can realize series charging and parallel discharging so as to improve the charging and discharging efficiency.
Through the device, the embodiment of the disclosure can realize the monitoring of charging of the single battery pack, and after the single battery pack is full, the single battery pack is controlled not to be connected with other battery packs in series, and the whole charging voltage is adjusted to continuously charge the battery with the insufficient battery capacity. The single battery pack can be subjected to discharge monitoring, and after the single battery pack is over-discharged, the battery pack is automatically short-circuited, so that the discharge of other battery packs is not influenced, the discharge is more sufficient, and the cruising ability of the equipment is enhanced.
Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (9)
1. A control device, characterized in that the device comprises:
a battery module including a plurality of battery packs connected in series, each battery pack including one or more than two batteries;
a switch module electrically connected to the battery module;
the control module is electrically connected to the battery module and the switch module, and is used for:
detecting the battery state of each battery pack in the battery module;
controlling the conduction state of the switch module according to the battery state of each battery pack so as to control the work of each battery pack;
the control module is used for outputting a switch control signal, the switch module comprises a plurality of switch units, each switch unit controls a corresponding battery pack, the switch units comprise a first transistor, a second transistor, a third transistor, a first resistor, a second resistor and a diode, wherein,
the grid electrode of the first transistor is used for receiving the switch control signal output by the control module, the source electrode of the first transistor is grounded, the drain electrode of the first transistor is electrically connected with the grid electrode of the second transistor, the first end of the first resistor, the first end of the second resistor and the negative electrode end of the diode,
the second end of the first resistor is electrically connected with the source end of the second transistor and the drain end of the third transistor, the drain of the second transistor is electrically connected with the cathode end of the battery pack,
a gate of the third transistor is electrically connected to the second terminal of the second resistor and the positive terminal of the diode, a source terminal of the third transistor is electrically connected to the positive electrode of the battery pack,
and the positive terminal of the battery pack is used for receiving charging voltage.
2. The apparatus of claim 1, wherein the control module is further configured to:
determining a charging voltage according to the number of battery packs to be charged of the battery module;
and outputting a charging voltage to charge the battery pack of the battery module.
3. The apparatus of claim 2, wherein the control module is further configured to:
and determining the number of the battery packs to be charged of the battery module according to the battery state of each battery pack.
4. The apparatus of claim 3, wherein determining the number of battery packs to be charged for the battery module based on the battery status of each battery pack comprises:
determining a number of battery packs to be charged of the battery module as: the total number of battery packs minus the number of battery packs in a state of charge completion.
5. The apparatus of any of claims 2-4, the determining a charging voltage according to a number of battery packs to be charged of the battery module, comprising:
determining the charging voltage according to the following formula:
vout ═ N-q × Vm, where N denotes the total number of battery packs in the battery module, q denotes the number of battery packs in a state of charge completion, Vm denotes the rated charge voltage of each battery pack, and Vout denotes the charge voltage.
6. The apparatus of claim 1, wherein the detecting the battery status of each battery pack in the battery module comprises:
and acquiring the voltage difference between the positive end and the negative end of each battery pack, comparing the voltage difference with a threshold voltage, and determining the battery state of each battery pack according to the comparison result.
7. The apparatus of claim 1, wherein the controlling the conduction state of the switch module according to the battery state of each battery pack to control the operation of each battery pack comprises:
when the battery pack is in a charging completion state or a discharging completion state, the battery pack in the charging completion state or the discharging completion battery pack is not connected in series with another battery pack.
8. The apparatus of claim 1,
when the battery pack is in a charging completion state or a discharging completion state, the switch control signal is used for controlling the first transistor and the second transistor to be switched on and controlling the third transistor to be switched off so as to control the battery pack to stop charging or discharging;
when the battery pack is in a charging state or a discharging state, the switch control signal is used for controlling the first transistor and the second transistor to be switched off and controlling the third transistor to be switched on so as to charge or discharge the battery pack.
9. An electronic device, characterized in that the device comprises:
a control device as claimed in any one of claims 1 to 8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910864042.2A CN110460137B (en) | 2019-09-12 | 2019-09-12 | Control device and electronic apparatus |
| PCT/CN2020/110143 WO2021047361A1 (en) | 2019-09-12 | 2020-08-20 | Control apparatus and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910864042.2A CN110460137B (en) | 2019-09-12 | 2019-09-12 | Control device and electronic apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110460137A CN110460137A (en) | 2019-11-15 |
| CN110460137B true CN110460137B (en) | 2021-04-06 |
Family
ID=68491845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910864042.2A Active CN110460137B (en) | 2019-09-12 | 2019-09-12 | Control device and electronic apparatus |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110460137B (en) |
| WO (1) | WO2021047361A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110460137B (en) * | 2019-09-12 | 2021-04-06 | 展讯通信（深圳）有限公司 | Control device and electronic apparatus |
| CN116073486A (en) * | 2023-03-03 | 2023-05-05 | 苏州浪潮智能科技有限公司 | BBU reconstruction equalization charge-discharge circuit and method for realizing charge-discharge reconstruction equalization |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5369351A (en) * | 1992-02-18 | 1994-11-29 | Angeion Corporation | High voltage charge storage array for an impantable defibrillator |
| TW200635173A (en) * | 2005-03-17 | 2006-10-01 | Samya Technology Co Ltd | Tandem-type auto speed-variable charger for Ni-MH/CD cell |
| TWI419433B (en) * | 2010-01-28 | 2013-12-11 | Joy Ride Tech Co Ltd | Series battery system with automatic bypass function |
| CN103683396B (en) * | 2013-11-29 | 2016-02-03 | 捷普科技（上海）有限公司 | A kind of adaptive battery balanced charging device and method with upset defencive function |
| CN204465038U (en) * | 2015-01-16 | 2015-07-08 | 荆延杰 | A kind of series battery discharging equalizing circuit |
| CN104993551A (en) * | 2015-07-29 | 2015-10-21 | 曹兵 | Storage battery serial bus apparatus and charge and discharge control method |
| CN109936189B (en) * | 2016-07-08 | 2023-07-28 | 卓尔悦欧洲控股有限公司 | Equalizing charge circuit, device and method for series battery |
| CN106849925B (en) * | 2016-12-25 | 2020-04-28 | 惠州市亿能电子有限公司 | High-side NMOS drive circuit |
| CN109217392B (en) * | 2017-06-30 | 2020-08-18 | 天扬精密科技股份有限公司 | Power management system for multiple batteries |
| US10833512B2 (en) * | 2017-11-14 | 2020-11-10 | Neapco Intellectual Property Holdings, Llc | Cell balancing with local sensing and switching |
| CN110797924B (en) * | 2018-08-01 | 2021-08-03 | Oppo广东移动通信有限公司 | Battery control system and method and electronic equipment |
| CN110797925B (en) * | 2018-08-01 | 2021-08-03 | Oppo广东移动通信有限公司 | Battery control system and method and electronic equipment |
| CN110460137B (en) * | 2019-09-12 | 2021-04-06 | 展讯通信（深圳）有限公司 | Control device and electronic apparatus |
| CN111355282A (en) * | 2020-03-30 | 2020-06-30 | 中国电建集团成都勘测设计研究院有限公司 | Charging and discharging protection method and system for series battery pack |
-
2019
- 2019-09-12 CN CN201910864042.2A patent/CN110460137B/en active Active
-
2020
- 2020-08-20 WO PCT/CN2020/110143 patent/WO2021047361A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021047361A1 (en) | 2021-03-18 |
| CN110460137A (en) | 2019-11-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100415763B1 (en) | Rechargeable battery pack | |
| US7928691B2 (en) | Method and system for cell equalization with isolated charging sources | |
| CN1205719C (en) | Recharge/discharge control circuit and rechargeable power supply equipment | |
| EP2186181B1 (en) | Apparatus and method for balancing of battery cell's charge capacity | |
| US8179139B2 (en) | Rechargeable battery abnormality detection apparatus and rechargeable battery apparatus | |
| US11038213B2 (en) | Battery pack and control method | |
| US8154250B2 (en) | Battery charging controller and battery module using the same | |
| EP2418751B1 (en) | Battery charger and battery charging method | |
| US5017856A (en) | Battery charging system | |
| US20090267565A1 (en) | Method and system for cell equalization with charging sources and shunt regulators | |
| US7821230B2 (en) | Method and system for cell equalization with switched charging sources | |
| EP2416469A1 (en) | Charging device | |
| CN105322612B (en) | Charge-discharge control circuit and accumulator plant | |
| CN109217392B (en) | Power management system for multiple batteries | |
| MX2023000067A (en) | Rechargeable battery discharge device for discharging rechargeable batteries, and method for discharging a plurality of rechargeable batteries. | |
| CN110460137B (en) | Control device and electronic apparatus | |
| US20120032513A1 (en) | Battery management circuit, battery module and battery management method | |
| KR200189819Y1 (en) | Battery pack capable of balanced charging cell | |
| US20210218258A1 (en) | Cell Protection Circuit and Electronic Device | |
| JP3249261B2 (en) | Battery pack | |
| JP2004134287A (en) | Abnormality detection device of battery pack | |
| CN111293755B (en) | Protection circuit for equalizing discharge of parallel battery pack and chargeable device | |
| TWI404293B (en) | Charge balance circuit control system | |
| CN1841878B (en) | Control device and system | |
| JP2004039333A (en) | Abnormality detector for battery pack |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |