CN219145039U - Charging control circuit and charging device - Google Patents
Charging control circuit and charging device Download PDFInfo
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- CN219145039U CN219145039U CN202222717987.1U CN202222717987U CN219145039U CN 219145039 U CN219145039 U CN 219145039U CN 202222717987 U CN202222717987 U CN 202222717987U CN 219145039 U CN219145039 U CN 219145039U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model discloses a charging control circuit and charging equipment, the charging control circuit includes: the charging wake-up module is electrically connected with the charger and is used for outputting a wake-up signal according to the access of the charger; the resistance detection module is electrically connected with the charger; the main control module is electrically connected with the charging wake-up module and the resistance detection module, and is used for receiving and outputting a starting signal according to the wake-up signal and outputting a closing signal according to the completion of charging of the charger; the driving module is electrically connected with the main control module and is used for receiving the starting signal and the closing signal, controlling the resistance detection module and the charger to form a current loop according to the starting signal, and cutting off the connection between the resistance detection module and the charger according to the closing signal so as to control the resistance detection module to stop working. The utility model can reduce energy loss.
Description
Technical Field
The present utility model relates to the field of charging technologies, and in particular, to a charging control circuit and a charging device.
Background
In the related art, a battery is charged through a charger, and a resistance detection module is started to detect the resistance of the charger through a wake-up circuit after the charger is inserted. However, if the user forgets to pull out the charger, the resistance detection module of the charger is still started, so that the waste of electric energy resources is caused, and the electric energy loss is increased.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a charging control circuit which can save electric energy loss.
The utility model further provides charging equipment.
In a first aspect, one embodiment of the present utility model provides a charge control circuit connected to a charger; the charge control circuit includes:
the charging wake-up module is electrically connected with the charger and is used for outputting a wake-up signal according to the access of the charger;
the resistance detection module is electrically connected with the charger;
the main control module is electrically connected with the charging wake-up module and the resistance detection module, and is used for receiving and outputting a starting signal according to the wake-up signal and outputting a closing signal according to the completion of charging of the charger;
the driving module is electrically connected with the main control module and is used for receiving the starting signal and the closing signal, controlling the resistance detection module and the charger to form a current loop according to the starting signal, and cutting off the connection between the resistance detection module and the charger according to the closing signal so as to control the resistance detection module to stop working.
The charging control circuit provided by the embodiment of the utility model has at least the following beneficial effects: the charging wake-up module outputs a wake-up signal to wake up the main control module automatically according to the connection of the charger, and the main control module outputs a start-up signal to the driving module after being started, the driving module starts the resistance detection module to output a voltage value according to the start-up signal, and the main control module calculates to obtain the resistance of the charger according to preset resistance data and the voltage value, so that the calculation operation of the resistance of the charger is simple; if the charging machine finishes charging, the main control module outputs a closing signal to the driving module, and the driving module controls the resistor detection module and the charging machine to be disconnected so as to control the resistor detection module to be closed, so that the energy loss of the resistor detection module is saved, and the energy loss is reduced.
According to other embodiments of the present utility model, the resistance monitoring module is configured to output a voltage value when the charger forms a current loop; the main control module is also used for obtaining the voltage value, and carrying out resistance calculation according to preset resistance data and the voltage value to obtain the charger resistance.
According to further embodiments of the present utility model, the charge wakeup module includes:
the voltage dividing unit is electrically connected with the charger and is used for outputting divided voltage according to the insertion of the charger;
the first control unit is electrically connected with the voltage dividing unit, is used for starting according to the divided voltage and outputs a wake-up signal.
According to still further embodiments of the present utility model, the voltage dividing unit includes:
one end of the first resistor is connected with a power supply, and the other end of the first resistor is connected with the charger;
and one end of the second resistor is connected between the first resistor and the charger, and the other end of the second resistor is connected with the first control unit.
According to still further embodiments of the present utility model, the first control unit includes:
the grid electrode of the first MOS tube is connected with the second resistor, the source electrode of the first MOS tube is connected with the main control module, and the drain electrode of the first MOS tube is connected with the power supply;
and one end of the third resistor is connected with the drain electrode of the first MOS tube, and the other end of the third resistor is grounded.
According to still further embodiments of the present utility model, the resistance detection module includes:
the second control unit is electrically connected with the driving module and the charger and is used for communicating with a power supply after being conducted according to the driving module;
and the shunt unit is electrically connected with the second control unit and the charger, and is used for forming a current loop with the charger after being communicated with a power supply according to the second control unit and outputting the voltage value.
According to still further embodiments of the present utility model, the second control unit includes:
a fourth resistor;
the grid electrode of the second MOS tube is connected with the driving module, the drain electrode of the second MOS tube is connected with the power supply, the source electrode of the second MOS tube is connected with one end of the fourth resistor, and the other end of the fourth resistor is connected with the shunt unit.
According to still further embodiments of the present utility model, the shunt unit includes:
one end of the fifth resistor is connected with the fourth resistor, the first resistor and the second resistor, and the other end of the fifth resistor is connected with the main control module;
and one end of the sixth resistor is connected with the fifth resistor and the main control module, and the other end of the sixth resistor is grounded.
According to further embodiments of the present utility model, the driving module includes:
a seventh resistor;
the base electrode of the first triode is electrically connected with the main control module, the collector electrode is connected with one end of the seventh resistor and the second MOS tube, the other end of the seventh resistor is connected with a power supply, and the emitter electrode is grounded.
In a second aspect, an embodiment of the present utility model provides a charging apparatus including:
a charger;
a charge control circuit as described in the first aspect.
The charging equipment provided by the embodiment of the utility model has at least the following beneficial effects: by arranging the charging control circuit of the first aspect, the charging equipment capable of saving energy consumption waste is obtained.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
FIG. 1 is a block diagram of a charge control circuit according to an embodiment of the present utility model;
FIG. 2 is a block diagram of another embodiment of a charge control circuit in accordance with an embodiment of the present utility model;
fig. 3 is a schematic circuit diagram of an embodiment of a charge control circuit according to an embodiment of the present utility model.
Reference numerals: 100. a charging wake-up module; 110. a voltage dividing unit; 120. a first control unit; 200. a resistance detection module; 210. a second control unit; 220. a shunt unit; 300. a main control module; 400. and a driving module.
Detailed Description
The conception and the technical effects produced by the present utility model will be clearly and completely described in conjunction with the embodiments below to fully understand the objects, features and effects of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present utility model based on the embodiments of the present utility model.
In the description of the present utility model, if an orientation description such as "upper", "lower", "front", "rear", "left", "right", etc. is referred to, it is merely for convenience of description and simplification of the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the utility model. If a feature is referred to as being "disposed," "secured," "connected," or "mounted" on another feature, it can be directly disposed, secured, or connected to the other feature or be indirectly disposed, secured, connected, or mounted on the other feature.
In the description of the embodiments of the present utility model, if "several" is referred to, it means more than one, if "multiple" is referred to, it is understood that the number is not included if "greater than", "less than", "exceeding", and it is understood that the number is included if "above", "below", "within" is referred to. If reference is made to "first", "second" it is to be understood as being used for distinguishing technical features and not as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
Referring to fig. 1, a block circuit diagram of a charge control circuit in an embodiment of the present utility model is shown. The embodiment of the utility model discloses a charging control circuit, which is connected with a charger and comprises: the charging wake-up module 100, the resistance detection module 200, the main control module 300 and the driving module 400 are electrically connected with a charger, and the charging wake-up module 100 is used for outputting a wake-up signal according to the access of the charger; the resistance detection module 200 is electrically connected with a charger; the main control module 300 is electrically connected with the charging wake-up module 100 and the resistance detection module 200, and is used for receiving and outputting a starting signal according to a wake-up signal and outputting a closing signal according to the completion of charging of the charger; the driving module 400 is electrically connected to the main control module 300, and is configured to receive a start signal and a close signal, control the resistor detection module 200 and the charger to form a current loop according to the start signal, and cut off connection between the resistor detection module 200 and the charger according to the close signal, so as to control the resistor detection module 200 to stop working.
It should be noted that, when the charger is inserted, the charging wake-up module 100 outputs a wake-up signal after detecting that the charger is connected, the main control module 300 receives the wake-up signal output by the charging wake-up module 100 and outputs a start signal to the driving module 400 according to the wake-up signal, and the driving module 400 controls the charger and the resistance detection module 200 to form a current loop according to the start signal, so that the main control module 300 is automatically awakened after the charger is inserted to charge the charger and simultaneously start the resistance detection module to start. When the charging of the charger is completed, the main control module 300 outputs a closing signal to the driving module 400 after detecting that the charging of the charger is completed, and the driving module 400 cuts off the connection between the resistance detection module 200 and the charger according to the closing signal so as to control the resistance detection module 200 to stop working. Therefore, when the charger finishes charging, the resistance detection module is controlled to stop working, and the electric energy loss generated by the connection circuit of the resistance detection module can be reduced even though the charger is not pulled out, so that the energy consumption waste is saved.
In some embodiments, the resistance detection module 200 is further configured to output a voltage value when forming a current loop with the charger, and the main control module 300 is further configured to obtain the voltage value output by the resistance detection module 200, and perform resistance calculation according to preset resistance data and the voltage value to obtain the resistance of the charger. When the resistance detection module 200 and the charger form a current loop and then output a voltage value, the main control module 300 obtains the voltage value and calculates the resistance of the charger according to ohm's law according to preset resistance data and the voltage value, so that the resistance of the charger is easy to calculate.
Referring to fig. 1 and 2, in some embodiments, the charge wake-up module 100 includes: a voltage dividing unit 110 and a first control unit 120; the voltage dividing unit 110 is electrically connected with the charger and is used for outputting divided voltage according to the insertion of the charger; the first control unit 120 is electrically connected to the voltage division unit 110, and is configured to start according to the divided voltage and output a wake-up signal. When the voltage division unit 110 is connected with a charger, the voltage of the voltage division unit 110 is changed to output divided voltage to the first control unit 120 through the access of the charger, and the first control unit 120 starts up according to the divided voltage and outputs a wake-up signal to the main control module 300 so as to wake up the main control module 300 after the access of the charger, so that the starting operation of the main control module 300 is more intelligent.
In some embodiments, the resistance detection module 200 includes: a second control unit 210 and a shunt unit 220; the second control unit 210 is electrically connected to the driving module 400 and the charger, and is used for connecting with a power supply after being conducted according to the driving module 400; the shunt unit 220 is electrically connected to the second control unit 210 and the charger, and is configured to form a current loop with the charger after the second control unit 210 is connected to the power supply, and output a voltage value. The second control unit 210 is connected to the driving module 400, when the driving module 400 is turned on, the second control unit is turned on, and then the current splitting unit 220 is also turned on, the current splitting unit 220 and the charger form a current loop, the voltage value is output by the current splitting unit 220, and the current value of the resistance of the charger is indirectly calculated by the main control module 300 according to the voltage value output by the current splitting unit 220, so that the resistance of the charger can be calculated by the main control module 300 according to the voltage value and preset resistance data. The resistance data is a resistance value on the current loop, and since the shunt unit 220 and the charger form a loop, and the voltage value and the resistance value output by the shunt unit 220 are known data, the resistance value of the charger can be calculated according to ohm's law, so that the calculation of the resistance of the charger is simple.
Referring to fig. 2 and 3, in some embodiments, the voltage dividing unit 110 includes: a first resistor R1 and a second resistor R2; one end of the first resistor R1 is connected with a power supply, and the other end of the first resistor R1 is connected with a charger; one end of the second resistor R2 is connected between the first resistor R1 and the charger, and the other end of the second resistor R2 is connected with the first control unit 120. The second resistor R2 is further connected to the shunt unit 220. After the charging machine is connected by setting the second resistor R2 in series with the charging machine, the voltage value of the second resistor R2 and the first control unit 120 is reduced because the resistance of the charging machine is far smaller than the resistance value of the shunt unit 220, so as to output the divided voltage to the first control unit 120. Therefore, the first resistor R1 and the second resistor R2 are arranged in series with the charger, and whether the charger is inserted or not is judged by the voltage change between the first resistor R1 and the second resistor R2.
In some embodiments, the first control unit 120 includes: the first MOS transistor Q1 and the third resistor R3; the grid electrode of the first MOS tube Q1 is connected with the second resistor R2, the source electrode is connected with the main control module 300, and the drain electrode is connected with a power supply; one end of the third resistor R3 is connected with the drain electrode of the first MOS tube Q1, and the other end of the third resistor R is grounded. The first MOS transistor Q1 is a P-channel MOS transistor. When the charger is connected, the second resistor R2 is connected in series with the charger, and the resistance value of the charger is far smaller than that of the shunt unit 220, then the voltage division voltage connected to the first MOS transistor Q1 is low, then the gate of the first MOS transistor Q1 receives low-level conduction, and then the third resistor R3 is connected to the power supply. Since the source electrode of the first MOS tube is connected with the main control module 300, the edge wake-up end of the main control module 300 receives a high level to wake up. Therefore, the first resistor R1, the second resistor R2, the first MOS transistor Q1 and the third resistor R3 are set to form the charging wake-up module 100, so as to realize automatic wake-up of the main control module 300 after the charging machine is connected, and make the wake-up operation of the main control module 300 simple.
In some embodiments, the drive module 400 includes: a seventh resistor R7 and a first triode Q3; the base electrode of the first triode Q3 is electrically connected with the main control module 300, the collector electrode is connected with one end of the seventh resistor R7 and the second MOS tube Q2, the other end of the seventh resistor R7 is connected with a power supply, and the emitter electrode is grounded. When the main control module 300 outputs a start signal, wherein the start signal is at a high level, that is, outputs a high level to the first transistor Q3 to turn on the first transistor Q3, the second control unit 210 is turned on; if the main control module 300 outputs a shutdown signal, i.e. outputs a low level, the first transistor Q3 is turned off to control the second control unit 210 to be turned off. Accordingly, the second control unit 210 is simply operated to be turned on and off by setting the first transistor Q3 to control the second control unit 210 to be turned on or off according to the high level or the low level output from the main control module 300.
In some embodiments, the second control unit 210 includes: a fourth resistor R4 and a second MOS transistor Q2; the gate of the second MOS transistor Q2 is connected with the driving module 400, the drain is connected with the power supply, the source is connected with one end of the fourth resistor R4, and the other end of the fourth resistor R4 is connected with the shunt unit 220. The second MOS transistor Q2 is a P-channel MOS transistor. When the first triode Q3 is turned on, the second MOS transistor Q2 is turned on after the first triode Q3 is turned on, and the fourth resistor R4 is connected in parallel with the first resistor R1, and the fourth resistor R4 is connected in series with the shunt unit 220. Therefore, the second control unit 210 composed of the fourth resistor R4 and the second MOS transistor Q2 is constructed to not continuously occupy electric energy after the charging machine finishes charging according to whether the first transistor Q3 is turned on or not, so as to save energy consumption.
In some embodiments, the diverting unit 220 includes: the first resistor R1 and the second resistor R2 are connected with the main control module 300, and the other end of the first resistor R5 is connected with the first resistor R4; one end of the sixth resistor R6 is connected with the fifth resistor R5 and the main control module 300, and the other end is grounded. The resistance value of the first resistor R1 is far greater than the resistance value of the fourth resistor R4, and the resistance values of the fifth resistor R5 and the sixth resistor R6 are far greater than the resistance value of the charger. When the first MOS transistor Q1 is turned on, the main control module 300 outputs a high level to the first transistor Q1 to be turned on, and then the second MOS transistor is turned on, and the fourth resistor R4 is connected in series with the charger. Because the master control module 300 is connected between the fifth resistor R5 and the sixth resistor R6 to output a voltage value, the voltage value is the voltage value of the sixth resistor R6. The preset resistance data includes resistance values of the first resistor R1, the fourth resistor R4, the fifth resistor R5 and the sixth resistor R6, and then the main control module 300 calculates a current value of the fourth resistor R4 according to the power supply voltage, the output voltage value, the resistance values of the fourth resistor R4, the fifth resistor R5 and the sixth resistor R6, and calculates a charger resistance according to the current value of the fourth resistor R4. Specifically, the current value of the fourth resistor R4 is calculated by the power supply voltage, the output voltage value, the resistance value of the fifth resistor R5, the resistance value of the sixth resistor R6 and the resistance value of the fourth resistor R4, and the fifth resistor R5 and the sixth resistor R6 are connected in parallel with the charger, so that the voltage value of the charger is equal to the voltage values of the fifth resistor R5 and the sixth resistor R6. Because the resistance value of the first resistor R1 is far greater than the resistance value of the fourth resistor R4, and the resistance values of the fifth resistor R5 and the sixth resistor R6 are far greater than the resistance value of the charger, the fourth resistor R4 and the charger are connected in parallel, and the current value of the fourth resistor R4 is approximately equal to the current of the charger, and a calculation formula of the charger resistor according to ohm's law can be obtained as shown in formula (1):
wherein U1 is a voltage value, U2 is a power supply voltage, R4 is a fourth resistor, R5 is a fifth resistor, and R6 is a sixth resistor. Therefore, the charger resistance can be deduced from equation (1) as:
therefore, the charger resistance Rx is calculated by the formula (2), so that the calculation of the charger resistance Rx is simple.
Specifically, the main control module is a MUC chip, an MCU_control pin of the main control chip is connected with the first triode Q3, an edge wake-up pin is connected with a drain electrode of the first MOS tube, and an ADC_detect pin is connected with the fifth resistor R5 and the sixth resistor R6. Therefore, the MCU chip outputs a corresponding control instruction according to the voltage value input by the pin so as to charge the charger and calculate the resistance of the charger.
In some embodiments, the resistance range of the first resistor R1 is 100k K Ω -10 mΩ, and when the charger is connected by setting the resistance range of the first resistor R1 to 100k K Ω -10 mΩ, the resistance of the first resistor R1 is far greater than the fourth resistor R4, and the resistance of the charger is far less than the fifth resistor R5 and the sixth resistor R6, so that the fourth resistor R4 and the charger are connected in series, and the current value of the charger is large. After the charging is completed, the fourth resistor R4 is disconnected from the charger, the first resistor R1 is connected with the charger in series, and the loop current of the first resistor R1 is smaller than 0.2mA, so that the current value of the charger is reduced, the electric energy consumed by the charger is reduced, and the electric energy loss is reduced.
A charge control circuit according to an embodiment of the present utility model is described in detail below with reference to fig. 1 to 3 in a specific embodiment. It is to be understood that the following description is exemplary only and is not intended to limit the utility model in any way.
When the charger is connected, the charger and the second resistor R2 are connected in series, so that the voltage of the gate of the first MOS transistor Q1 is reduced, the first MOS transistor Q1 is turned on after receiving the low level, and the third resistor R3 is turned on, so that the main control module 300 receives the high level to wake up. When the main control module 300 wakes up, it outputs a high level to the first transistor Q3, and the first transistor Q3 is turned on after receiving the high level, so that the second MOS transistor Q2 is also turned on, and the second resistor R2 is connected in series with the charger. Therefore, the main control module 300 obtains the voltage value of the sixth resistor R6, and the main control module 300 obtains the pre-stored resistance values and the power supply voltage of the first resistor R1, the fourth resistor R4, the fifth resistor R5 and the sixth resistor R6, and can calculate the resistance of the charger according to ohm's law, so that the calculation of the resistance of the charger is simple. When the charging of the charger is completed, the main control module 300 outputs a low level to the first triode Q3, and the first triode Q3 is cut off and then the second MOS tube Q2 is cut off, so that the second resistor R2 is disconnected from the charger, and the first resistor R1 is connected in series with the charger. Because the resistance value of the first resistor R1 is selected to be larger, and the resistance value of the first resistor R1 is far larger than that of the second resistor R2, the current value of the charger is reduced, so that the charger cannot consume excessive electric energy of a system, and energy loss is saved.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model. Furthermore, embodiments of the utility model and features of the embodiments may be combined with each other without conflict.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model. Furthermore, embodiments of the utility model and features of the embodiments may be combined with each other without conflict.
Claims (10)
1. A charging control circuit, which is characterized in that the charging control circuit is connected with a charger; the charge control circuit includes:
the charging wake-up module is electrically connected with the charger and is used for outputting a wake-up signal according to the access of the charger;
the resistance detection module is electrically connected with the charger;
the main control module is electrically connected with the charging wake-up module and the resistance detection module, and is used for receiving and outputting a starting signal according to the wake-up signal and outputting a closing signal according to the completion of charging of the charger;
the driving module is electrically connected with the main control module and is used for receiving the starting signal and the closing signal, controlling the resistance detection module and the charger to form a current loop according to the starting signal, and cutting off the connection between the resistance detection module and the charger according to the closing signal so as to control the resistance detection module to stop working.
2. The charge control circuit of claim 1, wherein the resistance monitoring module is configured to output a voltage value when the charger forms a current loop; the main control module is also used for obtaining the voltage value, and carrying out resistance calculation according to preset resistance data and the voltage value to obtain the charger resistance.
3. The charge control circuit of claim 1, wherein the charge wakeup module comprises:
the voltage dividing unit is electrically connected with the charger and is used for outputting divided voltage according to the insertion of the charger;
the first control unit is electrically connected with the voltage dividing unit, is used for starting according to the divided voltage and outputs a wake-up signal.
4. The charge control circuit of claim 3, wherein the voltage dividing unit comprises:
one end of the first resistor is connected with a power supply, and the other end of the first resistor is connected with the charger;
and one end of the second resistor is connected between the first resistor and the charger, and the other end of the second resistor is connected with the first control unit.
5. The charge control circuit of claim 4, wherein the first control unit comprises:
the grid electrode of the first MOS tube is connected with the second resistor, the source electrode of the first MOS tube is connected with the main control module, and the drain electrode of the first MOS tube is connected with the power supply;
and one end of the third resistor is connected with the drain electrode of the first MOS tube, and the other end of the third resistor is grounded.
6. The charge control circuit of claim 4 wherein the resistance detection module comprises:
the second control unit is electrically connected with the driving module and the charger and is used for communicating with a power supply after being conducted according to the driving module;
the shunt unit is electrically connected with the second control unit and the charger, and is used for forming a current loop with the charger after being communicated with a power supply according to the second control unit and outputting a voltage value.
7. The charge control circuit of claim 6, wherein the second control unit comprises:
a fourth resistor;
the grid electrode of the second MOS tube is connected with the driving module, the drain electrode of the second MOS tube is connected with the power supply, the source electrode of the second MOS tube is connected with one end of the fourth resistor, and the other end of the fourth resistor is connected with the shunt unit.
8. The charge control circuit of claim 7, wherein the shunt unit comprises:
one end of the fifth resistor is connected with the fourth resistor, the first resistor and the second resistor, and the other end of the fifth resistor is connected with the main control module;
and one end of the sixth resistor is connected with the fifth resistor and the main control module, and the other end of the sixth resistor is grounded.
9. The charge control circuit of claim 7 wherein the drive module comprises:
a seventh resistor;
the base electrode of the first triode is electrically connected with the main control module, the collector electrode is connected with one end of the seventh resistor and the second MOS tube, the other end of the seventh resistor is connected with a power supply, and the emitter electrode is grounded.
10. A charging apparatus, characterized by comprising:
a charger;
charge control circuit according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222717987.1U CN219145039U (en) | 2022-10-14 | 2022-10-14 | Charging control circuit and charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222717987.1U CN219145039U (en) | 2022-10-14 | 2022-10-14 | Charging control circuit and charging device |
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| Publication Number | Publication Date |
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| CN219145039U true CN219145039U (en) | 2023-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222717987.1U Active CN219145039U (en) | 2022-10-14 | 2022-10-14 | Charging control circuit and charging device |
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| CN (1) | CN219145039U (en) |
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2022
- 2022-10-14 CN CN202222717987.1U patent/CN219145039U/en active Active
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