CN111864818B - Charging control circuit, charging control method, charging receiving circuit and split type electronic equipment - Google Patents
Charging control circuit, charging control method, charging receiving circuit and split type electronic equipment Download PDFInfo
- Publication number
- CN111864818B CN111864818B CN201910347600.8A CN201910347600A CN111864818B CN 111864818 B CN111864818 B CN 111864818B CN 201910347600 A CN201910347600 A CN 201910347600A CN 111864818 B CN111864818 B CN 111864818B
- Authority
- CN
- China
- Prior art keywords
- charging
- signal
- voltage division
- control circuit
- circuit
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
Abstract
The invention relates to a charging control circuit, a charging control method, a charging receiving circuit and a split type electronic device, wherein the charging control circuit comprises: the power supply input end is used for being connected with an external adapter and receiving a charging signal provided by the adapter; the voltage division unit is connected with the power supply input end and used for carrying out voltage division processing on the charging signal to obtain a first voltage division signal; the first connecting end is connected with the voltage dividing unit and used for outputting a first voltage dividing signal and receiving a first feedback signal based on the response of the first voltage dividing signal; and the switch unit is respectively connected with the power input end and the first connecting end and used for responding to the first feedback signal and entering a conducting state so as to control the first connecting end to output a charging signal. The charging control circuit can avoid the phenomena of short circuit, corrosion and the like when the connecting end of the charging control circuit is contacted with a metal object or liquid, and improves the charging safety.
Description
Technical Field
The present disclosure relates to the field of computer technologies, and in particular, to a charging control circuit, a charging control method, a charging receiving circuit, and a split-type electronic device.
Background
The split type electronic equipment comprises a main body and split bodies, wherein the main body and the split bodies can be spliced together to form complete equipment, and the main body and the split bodies can also be separated for use after being split. The main body and the split bodies both contain independent power supply batteries, and when the main body and the split bodies are connected, the main body charges the split bodies. However, when the main body and the separate body are not connected, there is a problem in that safety is low.
Disclosure of Invention
The embodiment of the application provides a charging control circuit, a charging control method, a charging receiving circuit and split type electronic equipment, and safety can be improved.
A charge control circuit, comprising:
the power supply input end is used for being connected with an external adapter and receiving a charging signal provided by the adapter;
the voltage division unit is connected with the power supply input end and used for performing voltage division processing on the charging signal to obtain a first voltage division signal;
the first connecting end is connected with the voltage division unit and used for outputting the first voltage division signal and receiving a first feedback signal based on the response of the first voltage division signal;
and the switch unit is respectively connected with the power input end and the first connecting end and used for responding to the first feedback signal and entering a conducting state so as to control the first connecting end to output a charging signal.
In one embodiment, the first connection end includes:
the first detection point is connected with the voltage division unit and used for outputting the first voltage division signal;
the second detection point is connected with the switch unit and used for receiving a first feedback signal responding based on the first voltage division signal;
and the charging port is connected with the switch unit and is used for transmitting the charging signal provided by the adapter.
In one embodiment, the circuit further comprises: the first controller is respectively connected with the power input end and the voltage division unit and is used for detecting the adaptation type of the adapter; the voltage division unit is further used for carrying out voltage division processing on the charging signal according to the adaptation type to obtain a second voltage division signal; the first detection point is used for outputting the second voltage division signal, the second voltage division signal is used for indicating a charging receiving circuit to control the maximum charging current of the battery unit, and the charging control circuit is connected with the charging receiving circuit through the first connection end.
In one embodiment, the circuit further comprises: the current detection unit is respectively connected with the power supply input end and the charging port and is used for detecting the charging current provided by the adapter to the charging receiving circuit connected with the charging port; the first controller is further connected with the switch unit and is used for determining a current limit value of the charging receiving circuit based on the adaptation type and charging information, wherein the charging information comprises charging information of the charging control circuit and charging information of at least one connected charging receiving circuit; the switch unit is further configured to enter an off state when the charging current of the charging receiving circuit exceeds the corresponding current limit value.
In one embodiment, the first connection terminal is further configured to receive a second feedback signal, where the second feedback signal is fed back by a charge receiving circuit connected to the charge control circuit based on a voltage signal of a battery cell; the charge control circuit further includes: and the first controller is respectively connected with the switch unit and the first connecting end and is used for calculating the electric quantity information of the corresponding battery unit of the charging receiving circuit according to the second feedback signal and controlling the duration of the switch unit in a conducting state based on the electric quantity information of each connected battery unit of the charging receiving circuit.
In one embodiment, the voltage dividing unit comprises a fixed resistor and at least one controllable resistor; one end of the fixed resistor is connected with the power supply input end, and the other end of the fixed resistor is connected with the first detection point; one end of the controllable resistor is connected with a node between the fixed resistor and the first detection point, and the other end of the controllable resistor is grounded.
A charge-receiving circuit, comprising:
the second connecting end is used for receiving a first voltage division signal sent by the connected charging control circuit and outputting a first feedback signal based on the first voltage division signal;
the charging circuit is connected with the second connecting end and used for carrying out charging operation on the battery unit based on a charging signal when the charging signal is received, wherein the charging signal is provided by the charging control circuit in response to the first feedback signal;
and the battery unit is connected with the charging circuit.
In one embodiment, the second connection terminal is further configured to receive a second voltage division signal sent by the charging control circuit; the circuit further comprises: and the second controller is respectively connected with the second connecting end and the charging circuit and used for determining the adaptation type of the adapter connected with the charging control circuit according to the second voltage division signal and controlling the maximum charging current of the battery unit according to the adaptation type.
In one embodiment, the circuit further comprises: the second feedback unit is respectively connected with the second connecting end, the charging circuit and a node among the battery units and is used for carrying out voltage division processing on the voltage signals of the battery units to obtain second feedback signals; the second connection end is further configured to output the second feedback signal, where the second feedback signal is used to indicate the connected charging control circuit to control the time length for providing the charging signal.
A split-type electronic device, comprising: the charging device comprises a main body and at least one split body which can be connected with the main body, wherein the main body comprises a charging control circuit, and the split body comprises a charging receiving circuit;
the charge control circuit includes:
the power supply input end is used for being connected with an external adapter and receiving a charging signal provided by the adapter;
the voltage division unit is connected with the power supply input end and used for carrying out voltage division processing on the charging signal to obtain a first voltage division signal;
the first connecting end is connected with the voltage division unit and used for outputting the first voltage division signal and receiving a first feedback signal based on the response of the first voltage division signal;
the switch unit is respectively connected with the power input end and the first connecting end and used for responding to the first feedback signal and entering a conducting state so as to control the first connecting end to output the charging signal;
the charging receiving circuit includes:
the second connecting end is used for receiving the first voltage division signal sent by the connected main body;
the first feedback unit is connected with the second connecting end and used for controlling the second connecting end to output the first feedback signal based on the first partial pressure signal;
the charging circuit is connected with the second connecting end and used for carrying out charging operation on the battery unit based on the charging signal when the charging signal is received;
the battery unit is connected with the charging circuit.
A charging control method is applied to a main body of a split type electronic device, the main body comprises a first connecting end, the main body can be connected with at least one split body through the first connecting end, and the method comprises the following steps:
receiving a charging signal provided by an external adapter;
performing voltage division processing on the charging signal to obtain a first voltage division signal, and outputting the first voltage division signal through a first connecting end;
when a first feedback signal based on the first voltage division signal response is received, the first connection end is controlled to output a charging signal, and the charging signal is used for indicating the split charging.
In one embodiment, the method further comprises:
detecting an adaptation type of the adapter;
performing voltage division processing on the charging signal according to the adaptation type to obtain a second voltage division signal;
and outputting the second voltage division signal, wherein the second voltage division signal is used for indicating the maximum charging current of the split control battery unit.
In one embodiment, the method further comprises:
detecting a current value of a charging signal provided by the adapter to the split body;
determining a current limit value of the sub-body based on the adaptation type and charging information, wherein the charging information comprises charging information of the main body and charging information of at least one connected sub-body;
and when the current value of the charging signal exceeds the corresponding current limit value, controlling the first connecting end to stop outputting the charging signal.
In one embodiment, the method further comprises:
receiving a second feedback signal of the split feedback;
calculating the electric quantity information of the corresponding split battery unit according to the second feedback signal;
and controlling the time length of the first connection end for outputting the charging signal based on the electric quantity information of each connected split battery unit.
According to the charging control circuit, the charging control method, the charging receiving circuit and the split type electronic equipment, the first connecting end can output the first voltage division signal obtained by voltage division processing of the charging signal by the voltage division unit, if the first connecting end receives the first feedback signal fed back based on the first voltage division signal, the charging control circuit is determined to be connected with the charging receiving circuit, the switch unit responds to the first feedback signal to enter the conducting state so as to control the first connecting end to output the charging signal, the phenomena of short circuit, corrosion and the like caused when the connecting end of the charging control circuit is contacted with a metal object or liquid can be avoided, and the charging safety is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a block diagram of a charge control circuit according to an embodiment;
fig. 2 is a block diagram showing the structure of a charge control circuit in another embodiment;
FIG. 3 is a block diagram of a charge-receiving circuit according to one embodiment;
fig. 4 is a block diagram showing the structure of a charge receiving circuit in another embodiment;
FIG. 5 is a block diagram showing the structure of a separated electronic apparatus in one embodiment;
FIG. 6 is a block diagram of a split electronic device in another embodiment;
FIG. 7 is a diagram of an exemplary embodiment of a charging control method;
FIG. 8 is a flow diagram of a charge control method in one embodiment;
fig. 9 is a flowchart of a charge control method in another embodiment;
FIG. 10 is a flow chart of controlling output of a charge signal in one embodiment;
FIG. 11 is a flow diagram of controlling a duration of outputting a charging signal in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, the first connection end may be referred to as a second connection end, and similarly, the second connection end may be referred to as a first connection end, without departing from the scope of the present application. The first connection end and the second connection end are both connection ends, but they are not the same connection end.
Fig. 1 is a schematic structural diagram of a charge control circuit in one embodiment. In one embodiment, a charge control circuit is provided, comprising: a power input terminal 110, a voltage dividing unit 120, a first connection terminal 130 and a switch unit 140. The voltage dividing unit 120 is connected to the power input terminal 110, the first connection terminal 130 is connected to the voltage dividing unit 120, and the switch unit 140 is connected to the power input terminal 110 and the first connection terminal 130, respectively.
And a power input terminal 110 for connecting an external adapter and receiving a charging signal provided by the adapter. An adapter is a device for converting a power supply. The power input terminal 110 of the charging control circuit is connected to the power supply through the adapter, and can receive a charging signal obtained by converting the power supply through the adapter.
The voltage dividing unit 120 is configured to perform voltage dividing processing on the charging signal to obtain a first voltage dividing signal. The voltage dividing unit 120 may obtain the charging signal received by the power input terminal 110, and perform voltage dividing processing on the charging signal to obtain a first voltage dividing signal. The voltage dividing unit 120 may include at least two resistors, and the magnitude of the first voltage dividing signal may be controlled by controlling resistance values of the at least two resistors. The first divided voltage signal is a signal for detecting whether the charge control circuit and the charge receiving circuit are connected.
Optionally, the voltage dividing unit 120 performs voltage dividing processing on the charging signal to obtain a first voltage dividing signal with a voltage lower than a preset voltage, where the preset voltage is less than or equal to a lowest voltage of a corrosion phenomenon at an end point of the first connection end due to the presence of impurities, liquid, and the like. For example, when the end of the first connection end is a metal contact, if the metal contact corrodes when the voltage is higher than 0.5V, the preset voltage may be 0.5V, 0.4V, 0.3V, and the like, which is not limited herein.
The first connection terminal 130 is configured to output a first voltage division signal and receive a first feedback signal based on a response of the first voltage division signal. The first connection end 130 is connected to the voltage dividing unit 120, and may acquire and output a first voltage dividing signal obtained by the voltage dividing unit 120 performing voltage dividing processing on the charging signal, and receive a first feedback signal based on a response of the first voltage dividing signal. Specifically, the charging control circuit may be connected to the charging receiving circuit through the first connection end 130, and when the charging control circuit is connected to the charging receiving circuit, the charging receiving circuit may obtain a first voltage division signal output by the first connection end 130, so as to send a first feedback signal to the first connection end 130 based on the first voltage division signal; when the charging control circuit is not connected to the charging receiving circuit, the first connection terminal 130 cannot receive the first feedback signal based on the first voltage division signal response, that is, when the charging control circuit receives the first feedback signal at the first connection terminal 130, it is determined that the charging control circuit is connected to the charging receiving circuit.
The switch unit 140 is configured to enter a conducting state in response to the first feedback signal to control the first connection terminal to output the charging signal. The switch unit 140 may be implemented by a Metal Oxide Semiconductor (MOS), a relay, a Load switch, or the like. The switching unit 140 may acquire the first feedback signal received by the first connection 130 and enter a conductive state in response to the first feedback signal. The switch unit 140 is connected to the power input terminal 110 and the first connection terminal 130, respectively, when the switch unit 140 enters a conducting state, the power input terminal 110 is conducted to the first connection terminal 130, and the first connection terminal 130 can output a charging signal provided by the adapter, so that the charging receiving circuit connected to the charging control circuit performs a charging operation on the battery unit based on the charging signal.
The charging control circuit that this application embodiment provided can detect charging control circuit through first link and whether be connected with the receiving circuit that charges, then output the signal of charging and cause phenomenons such as short circuit, corruption when avoiding charging control circuit's link to contact metal object or liquid, can improve the security of charging.
In one embodiment, as shown in fig. 2, the first connection end 130 includes a first detection point 131, a second detection point 132, and a charging port 133. The first detecting point 131 is connected to the voltage dividing unit 140, and is configured to output a first voltage dividing signal obtained by performing voltage dividing processing on the charging signal by the voltage dividing unit 120. The second detecting point 132 is connected to the switch unit 140, and is configured to receive a first feedback signal based on the first voltage division signal response, and send the first feedback signal to the switch unit 140, so as to control the switch unit 140 to enter a conducting state after responding to the first feedback signal. The charging port 133 is connected to the switch unit 140, and is configured to output a charging signal provided by the adapter after the switch unit 140 enters the conducting state, so that the charging receiving circuit connected to the charging control circuit performs a charging operation on the battery unit based on the charging signal.
In one embodiment, the provided charge control circuit further comprises a first controller 150, the first controller 150 being connected to the power input 110 for detecting a type of adaptation of an external adapter to which the power input 110 is connected. Different types of adapters may provide charging signals of different voltage magnitudes and/or current magnitudes. Specifically, the first controller 150 may detect the adaptation type of the adapter connected to the power input terminal 110 according to BC1.2(Battery Charge 1.2, version 1.2 of the charging protocol) or other proprietary protocols.
The voltage dividing unit 120 is further configured to perform voltage dividing processing on the charging signal to obtain a second voltage dividing signal corresponding to the adaptation type, and output the second voltage dividing signal through the connected first detection point 131, where the second voltage dividing signal is used to instruct the charging receiving circuit to control the maximum charging current of the battery unit, and the charging control circuit is connected to the charging receiving circuit through the first connection end. Specifically, the first controller 150 and the charging receiving circuit may pre-store second voltage division signals corresponding to different adaptation types, and then the first controller 150 may control the voltage division unit 120 according to the adaptation type of the connected adapter to obtain the second voltage division signal corresponding to the adaptation type. For example, the second voltage division signals corresponding to the DCP (differentiated Charging Port), SDP (Standard downlink Port), and CDP (Charging downlink Port) may be 3V, 5V, 7V, and the like, respectively, which is not limited herein. The charging receiving circuit determines the adaptation type of the connection of the charging control circuit according to the second voltage division signal when receiving the second voltage division signal output from the first detection point 131, thereby setting the maximum charging current of the battery cell according to the adaptation type.
Through the second partial pressure signal that voltage division unit output and adaptation type correspond, the adaptation type of the adapter that charge control circuit connected can be confirmed according to this second partial pressure signal to charge receiving circuit to set up the maximum charging current of battery cell, can avoid the charging current of battery cell too big and cause the influence to charge control circuit, can improve the security of charging.
In one embodiment, the voltage dividing unit 120 may include a fixed resistor 121 and at least one controllable resistor 122. One end of the fixed resistor 121 is connected to the power input terminal 110, and the other end is connected to the first detecting point 131; the controllable resistor 122 has a first terminal connected to a node between the fixed resistor 121 and the first detection point, a second terminal connected to the first controller 150, and a third terminal connected to ground. The first controller 150 may control an access state of the controllable resistor 122 in the voltage dividing unit 120 according to the adaptation type, so that the voltage dividing unit 120 performs voltage division processing on the charging signal based on the fixed resistor and the at least one controllable resistor 122 to obtain a second voltage dividing signal corresponding to the adaptation type. Alternatively, in one embodiment, the controllable resistance 122 may be comprised of a fixed resistance and a switch in series. The first controller 150 may control the closed state of the switch of each controllable resistor 122 to control the connection of the fixed resistor in the controllable resistor.
In one embodiment, the provided charge control circuit may further include a current detection unit 160. The current detection unit 160 is connected to the power input terminal 110 and the charging port 133, respectively, for detecting a current value of a charging signal supplied to the charging reception circuit by the adapter. The first controller 150 is also connected to the switching unit 140 for determining the current limit of the charge receiving circuit based on the adaptation type and the charging information. The switch unit 140 is further configured to enter an off state when a current value of the charging signal of the charging receiving circuit exceeds a corresponding circuit limit value.
The charging information comprises charging information of the charging control circuit and charging information of at least one charging receiving circuit connected with the charging control circuit. Specifically, the charging information of the charging control circuit includes the number of charging reception circuits to which the charging control is connected, the power information of the battery cells of the charging control circuit, and the like, and the charging information of the charging reception circuit includes the power information of the battery cells of the charging reception circuit, and the like. Optionally, in some embodiments, the charging information may further include a charged time period, temperature information, and the like of the charging control circuit and the charging receiving circuit, which are not limited herein. The first controller 150 determines the current limit of the charging receiving circuit based on the adaptation type and the charging information, specifically, the first controller 150 may equally distribute the current of the charging signal provided by the adapter of the adaptation type according to the number of the connected charging receiving circuits to obtain the current limit of each charging receiving circuit, or may distribute the current of the charging signal provided by the adapter of the adaptation type based on the electric quantity information of each charging receiving circuit, for example, the current limit of the charging receiving circuit with a high residual electric quantity value may be lower than the charging receiving circuit with a low residual electric quantity value; the current limit of the charge-receiving circuit may be adjusted according to the temperature information, and specifically, the current limit when the temperature of the charge-receiving circuit exceeds the temperature threshold is lower than the current limit when the temperature is not the temperature threshold, and the like.
By determining the current limit value of each charging receiving circuit based on the adaptation type and the charging information, and controlling the switch unit to enter the off state when the current value of the charging signal received by the charging receiving circuit exceeds the current limit value, the charging operation of other charging receiving circuits or charging control circuits can be prevented from being influenced by overlarge current extracted by the charging receiving circuit.
In one embodiment, the first connection terminal 130 is further configured to receive a second feedback signal, wherein the second feedback signal is fed back by a charge receiving circuit connected to the charge control circuit based on the voltage signal of the battery cell. The first controller 150 is respectively connected with the second detecting point 132 and the switch unit 140; the first controller 150 is further configured to calculate power information of the battery cells of the corresponding charge receiving circuit according to the second feedback signal, and control a duration of the corresponding switch unit in the on state based on the power information of the battery cells of each connected charge receiving circuit. Specifically, the voltage signal of the battery unit is the stored voltage of the battery unit, and the charging receiving circuit may divide the voltage signal of the battery unit to obtain the second feedback signal. The first controller 150 may calculate the power information of the battery unit according to the second feedback signal. The power information may include, but is not limited to, at least one Of SOC (State Of Charge), low power required to be supplied, and storage voltage Of the battery unit. The first controller 150 may control a time period during which the corresponding switch unit 140 is in the on state according to the power information of the battery unit of each connected charge receiving circuit. That is, the first controller 150 may determine whether to provide a charging signal to the charging receiving circuit according to the charge amount information of the different charging receiving circuits. Specifically, the first controller 150 may control the on-time of the switch unit corresponding to the battery cell with low remaining capacity to be longer than the on-time of the switch unit corresponding to the battery cell with high remaining capacity; the first controller 150 may also enter the off state of the switch unit 140 corresponding to the battery unit when the remaining power of the battery unit exceeds a power threshold, where the power threshold may be set according to an actual application requirement, and is not limited herein, for example, the power threshold may be 70%, 80%, 90%, 100%, and the like.
By acquiring the second feedback signal fed back by the charging receiving circuit, calculating the electric quantity information of the battery unit of the corresponding charging receiving circuit according to the second feedback signal, and controlling the time length of the corresponding switch unit in the conducting state based on the electric quantity information of the battery unit of each connected charging receiving circuit, the charging condition of each charging receiving circuit can be flexibly controlled, and the accuracy of charging distribution is improved.
Fig. 3 is a schematic structural diagram of a charging receiving circuit in an embodiment. In one embodiment, a charge-receiving circuit includes: a charging circuit 210, a battery unit 220, a second connection terminal 230, and a first feedback unit 240. The battery unit 220 is connected to the charging circuit 210, the charging circuit 210 is connected to the second connection terminal 230, and the second connection terminal 230 is connected to the first feedback unit 240.
The second connection end 230 is used for receiving a first voltage division signal sent by the connected charging control circuit; the first feedback unit 240 is configured to control the second connection terminal to output a first feedback signal based on the first voltage division signal; the charging circuit is configured to perform a charging operation on the battery unit 220 based on a charging signal when the charging signal is received, wherein the charging signal is provided by the charging control circuit in response to the first feedback signal.
Specifically, as shown in fig. 4, in one embodiment, the second connection end 230 includes a first detection point 231, a second detection point 232, and a charging port 233 corresponding to the first connection end 130; the charging control circuit is connected to the charging receiving circuit, that is, the first detecting point 231 of the second connecting end 230 is connected to the first detecting point 131 of the first connecting end 130, the second detecting point 232 of the second connecting end 230 is connected to the second detecting point 132 of the first connecting end 130, and the charging port 233 of the second connecting end 230 is connected to the charging port 133 of the first connecting end 130. The first detecting point 231 of the second connection end 230 is used for receiving the first voltage division signal output by the first detecting point 131 of the first connection end 130; the second detection point 232 of the second connection terminal 230 is used for outputting a first feedback signal based on the first divided-voltage signal response; the charging port 233 of the second connection terminal 230 is used for receiving a charging signal provided by the charging port 133 of the first connection terminal 130.
In one embodiment, the first feedback unit 240 includes a first port and a second port; the first port is connected with a first detection point 231 of the second connection end 230, and the second port is connected with a second detection point 232 of the second connection end 230; optionally, the first port is connected to the second port, so that the first feedback unit 240 may output a corresponding first feedback signal according to the received first voltage division signal; the first feedback unit 240 may also include an amplifier, and the amplifier is connected to the first port and the second port, so that the first feedback unit 240 may amplify the first partial pressure signal received by the first port to obtain a first feedback signal, and output the first feedback signal through the second port.
In one embodiment, the provided charging receiving circuit further includes a second controller 250 connected to the second connection terminal 230 and the charging circuit 210, respectively. The second connection end 230 is further configured to receive a second voltage division signal sent by the charging control circuit; the second controller 250 is configured to determine an adaptation type of an adapter to which the charge control circuit is connected according to the second voltage division signal, and control a maximum charging current of the battery cell according to the adaptation type. Specifically, the second controller 250 prestores maximum charging currents corresponding to different adaptation types, so that after determining the adaptation type of the adapter to which the charging control circuit is connected, the maximum charging current of the charging circuit 210 is set to the maximum charging current corresponding to the adaptation type, that is, the maximum charging current of the battery unit 220 can be controlled. The maximum charging current corresponding to the adaptation type prestored in the second controller 250 is less than or equal to the maximum charging current that can be provided by the adaptation type. For example, the maximum charging current that can be provided by the adaptation type SDP is 500mA, and the maximum charging current corresponding to the SDP prestored in the second controller 250 may be 500mA, 450mA, 400mA, and the like, which is not limited herein. Taking the second voltage division signals corresponding to the adaptation types DCP, SDP and CDP as 3V, 5V and 7V respectively, and the maximum charging currents corresponding to the adaptation types DCP, SDP and CDP as 400mA, 500mA and 300mA respectively as an example, the charging receiving circuit can determine that the adapter type is SDP when the received second voltage division signal is 5V, so as to control the maximum charging current of the battery unit to be 500 mA; when the second divided voltage signal received by the charge receiving circuit is 7V, it may be determined that the corresponding adaptation type is CDP, thereby controlling the maximum charge current of the battery cell to 300 mA.
In one embodiment, the provided charge receiving circuit further includes a second feedback unit 260 connected to nodes between the second connection terminal 230, the charging circuit 210, and the battery cell 220, respectively. The second feedback unit 260 is configured to perform voltage division processing on the voltage signal of the battery unit to obtain a second feedback signal; the second connection terminal 230 is further configured to output the second feedback signal, which is used to instruct the connected charge control circuit to control the time duration for providing the charge signal.
Alternatively, in one embodiment, the second feedback unit 260 includes a first resistor 261 and a second resistor 262 connected in series, a node between the first resistor 261 and the second resistor 262 is connected to the second detection point 232 of the charge receiving circuit, the other end of the first resistor 261 is connected to a node between the charge circuit 210 and the battery cell 220, respectively, and the other end of the second resistor 262 is connected to ground.
Fig. 5 is a schematic diagram of a split electronic device in one embodiment. As shown in fig. 5, in one embodiment, there is provided a split type electronic apparatus including a main body and at least one split body connectable with the main body; the main body includes a charging control circuit 100 and the sub body includes a charging receiving circuit 200.
The charging control circuit 100 includes a power input terminal 110, a voltage dividing unit 120, a first connection terminal 130, and a switch unit 140. The voltage dividing unit 120 is connected to the power input terminal 110 and the first connection terminal 130 respectively; the switching unit 140 is connected to the power input terminal 110 and the first connection terminal 130, respectively. The charge receiving circuit 200 includes a charging circuit 210, a battery cell 220, a second connection terminal 230, and a first feedback unit 240. The battery unit 220 is connected with the charging circuit 210; the charging circuit 210 is connected to the second connection terminal 230; the second connection 230 is connected to a first feedback unit 240.
The main body may be connected with the second connection terminal 230 of the charging reception circuit 200 through the first connection terminal 130 of the charging control circuit 100. The power input terminal 110 of the charging control circuit 100 is configured to receive a charging signal provided by an external adapter, and the voltage dividing unit 120 is configured to perform voltage dividing processing on the charging signal to obtain a first voltage dividing signal, and output the first voltage dividing signal through the first connection terminal 130; when the main body is connected to the split body, the second connection terminal 230 of the charging receiving circuit 200 receives the first divided voltage signal, and the first feedback unit 240 may control the second connection terminal 230 to output a first feedback signal based on the first divided voltage signal; when acquiring the first feedback signal received by the first connection end 130, the switch unit 140 of the charging control circuit 100 enters a conducting state in response to the first feedback signal, so that the power input end 110 and the charging circuit 210 are conducted, the first connection end 130 can send the charging signal provided by the adapter to the charging circuit 210, and the charging circuit 210 can perform a charging operation on the battery unit 220 according to the charging signal.
The split type electronic equipment provided by the embodiment of the application can detect whether the main body is connected with the split type through the first connecting end, can avoid the phenomena of short circuit, corrosion and the like caused by the fact that the charging signal is output when the metal contact of the main body is contacted with a metal object or liquid, and can improve the charging safety.
Fig. 6 is a schematic diagram of a split electronic device in one embodiment. As shown in fig. 6, the separated type electronic apparatus includes a main body and at least one separated body connectable to the main body; the main body includes a charging control circuit 100 and the sub body includes a charging receiving circuit 200.
The charging control circuit 100 includes a power input terminal 110, a voltage dividing unit 120, a first controller 150, a switch unit 140, a current detecting unit 160, and a first connection terminal 130, wherein the first connection terminal 130 includes a first detecting point 131, a second detecting point 132, and a charging port 133. The first end of the voltage divider 120 is connected to the power input terminal 110, the second end is connected to the first detecting point 131, and the third end is grounded; the first controller 150 is respectively connected with the power input terminal 110, the switch unit 140 and the second detection point 132; the switching unit 140 is connected to the power input terminal 110 and the charging port 133, respectively; the current detection unit 160 is connected in parallel to the switching unit 140, and is connected to the power input terminal 110 and the charging port 133, respectively.
The charge receiving circuit 200 includes a charging circuit 210, a battery cell 220, a first feedback unit 240, a second controller 250, a second feedback unit 260, and a second connection terminal 230. The second connection terminal 230 includes a first detection point 231, a second detection point 232 and a charging port 233 corresponding to the first connection terminal 130. The charging circuit 210 is connected to the charging port 233; one end of the battery unit 220 is connected to the charging circuit 210, and the other end is grounded; the first feedback unit 240 is respectively connected with the first detection point 231 and the second detection point 232; the second controller 250 is respectively connected to the first detecting point 231 and the charging circuit 210; a first terminal of the second feedback unit 260 is connected to the second detection point 232, and a second terminal is connected to a node between the charging circuit 210 and the battery unit 220; the third terminal is grounded.
When the main body is connected to the split body, the first detecting point 231 of the second connecting end 230 is connected to the first detecting point 131 of the first connecting end 130, the second detecting point 232 of the second connecting end 230 is connected to the second detecting point 132 of the first connecting end 130, and the charging port 233 of the second connecting end 230 is connected to the charging port 133 of the first connecting end 130.
In one embodiment, the process of the main body detecting whether the bays are connected to provide the charging signals to the bays includes: the power input terminal 110 receives a charging signal provided by an external adapter, and the voltage dividing unit 120 performs voltage division processing on the charging signal to obtain a first voltage dividing signal, and outputs the first voltage dividing signal through the first detection point 131; when the main body is connected to the split body, the first detection point 231 of the charging receiving circuit 200 receives the first divided voltage signal, and the first feedback unit 240 may control the second detection point 232 to output a first feedback signal based on the first divided voltage signal; when the switch unit 140 acquires the first feedback signal received by the second detection point 132, it enters a conducting state in response to the first feedback signal, so that the power input terminal 110 and the charging circuit 210 are conducted, the charging port 133 may send the charging signal provided by the adapter to the charging circuit 210, and the charging circuit 210 may perform a charging operation on the battery unit 220 according to the charging signal.
In one embodiment, the process of determining the maximum charging current by the sub-body according to the fitting type of the adapter to which the main body is connected includes: the first controller 150 detects an adaptation type of an external adapter connected to the power input terminal 110, and controls access of a controllable resistor in the voltage dividing unit 120 according to the adaptation type, the voltage dividing unit 120 performs voltage division processing on a charging signal under the control of the first controller 150 to obtain a second voltage dividing signal, and outputs the second voltage dividing signal through the first detection point 131; the second controller 250 may obtain the second voltage division signal received by the first detection point 231 of the charge receiving circuit 200, determine the adaptation type of the adapter connected to the power input terminal 110 according to the second voltage division signal, and control the maximum charging current of the charging circuit 210, that is, the maximum charging current of the battery cell 220, according to the adaptation type.
Through the second partial pressure signal that voltage division unit output and adaptation type correspond, the adaptation type of the adapter that charge control circuit connected can be confirmed according to this second partial pressure signal to charge receiving circuit to set up the maximum charging current of battery cell, can avoid the charging current of battery cell too big and cause the influence to charge control circuit, can improve the security of charging.
In one embodiment, the process of the main body controlling the output of the charging signal includes: the circuit detection unit 160 detects a current value of the charging signal supplied to the charging circuit 210 by the adapter; the first controller 150 determines a current limit for the charging circuit 210 based on the adaptation type and the charging information; and controls the switch unit 140 to enter an off state, i.e., to stop the charging operation of the sub-body, when the current value of the charging circuit 210 exceeds the corresponding current limit value.
By determining the current limit value of each charging receiving circuit based on the adaptation type and the charging information, and controlling the switch unit to enter the off state when the current value of the charging signal received by the charging receiving circuit exceeds the current limit value, the charging operation of other charging receiving circuits or charging control circuits can be prevented from being influenced by overlarge current extracted by the charging receiving circuit.
In one embodiment, the process of the main body determining the time period of the split charging includes: the second feedback unit 260 divides the voltage signal of the battery unit 220 to obtain a second feedback signal, and outputs the second feedback signal through the second detection point 232 of the charge receiving circuit 200; the first controller 150 may obtain the second feedback signal received by the second detection point 132, calculate the power information of the battery cells 220 according to the second feedback signal, and control the duration of the corresponding switch unit 140 in the on state based on the power information of the battery cells 220 of each connected charge receiving circuit 200.
By acquiring the second feedback signal fed back by the charging receiving circuit, calculating the electric quantity information of the battery unit of the corresponding charging receiving circuit according to the second feedback signal, and controlling the time length of the corresponding switch unit in the conducting state based on the electric quantity information of the battery unit of each connected charging receiving circuit, the charging condition of each split can be flexibly controlled, and the accuracy of charging distribution is improved.
Fig. 7 is an application environment diagram of the charging control method in one embodiment. As shown in fig. 7, the application environment includes: the main body 710 of the split type electronic device comprises a first connecting end, and the main body 710 can be connected with at least one split body 720 through the first connecting end. If the main body 710 can be connected to at least two of the partitions 720 at the same time, the first connection end may include at least two sets of corresponding first detection points, second detection points, and charging ports. The main body 710 may receive a charging signal provided by an external adapter, perform voltage division processing on the charging signal to obtain a first voltage division signal, and output the first voltage division signal through each first detection point of the first connection end, and if a second detection point of the first connection end receives a first feedback signal, which indicates that the second detection point is connected to the split body 720, may control a charging port corresponding to the second detection point to output the charging signal, so that the connected split body 720 performs a charging operation; if the second detection point does not receive the first feedback signal, which indicates that the second detection point is not connected to the sub-body 720, the charging port corresponding to the second detection point may be controlled not to output the charging signal.
Fig. 8 is a flow chart of a charge control method in one embodiment. To explain that the charging control method is applied to the main body 710 of the split-type electronic device, as shown in fig. 8, the charging control method includes steps 802 to 806, where:
An adapter is a device for converting a power supply. The main body can be connected with a power supply through the adapter and receives a charging signal obtained after the power supply is converted through the adapter.
The first divided voltage signal is a signal for detecting whether the charge control circuit and the charge receiving circuit are connected. Optionally, the main body performs voltage division processing on the charging signal, and may obtain a first voltage division signal lower than a preset voltage. Wherein the preset voltage is less than or equal to the lowest voltage of the metal contact point which generates corrosion phenomenon due to the existence of impurities, liquid and the like. For example, when the metal contact is corroded at a voltage higher than 0.5V, the predetermined voltage may be 0.5V, 0.4V, 0.3V, etc., which is not limited herein.
The main body can be connected with the split body through the first connecting end, when the main body is connected with the split body, the split body can acquire a first voltage division signal output by the first connecting end, and therefore the split body can send a first feedback signal to the main body based on the first voltage division signal; when the main body is not connected to the divided body, the divided body does not transmit the first feedback signal to the main body. That is, when the main body receives the first feedback signal, it is determined that the main body is connected to the split body, and the first connection terminal is controlled to output a charging signal, where the charging signal is used to instruct the split body to perform a charging operation on the battery unit.
According to the charging control method provided by the embodiment of the application, whether the main body is connected with the split body or not can be detected through the first connecting end, the phenomena of short circuit, corrosion and the like caused by the fact that the charging signal is output when the metal contact of the main body contacts a metal object or liquid can be avoided, and the charging safety can be improved.
As shown in fig. 9, in one embodiment, the provided charge control method further includes:
Different types of adapters may provide charging signals of different voltage magnitudes and/or current magnitudes. Specifically, the body may detect the adaptation type of the connected adapter according to BC1.2(Battery Charge 1.2, version 1.2 of the charging protocol) or other proprietary protocols.
And 904, performing voltage division processing on the charging signal according to the adaptation type to obtain a second voltage division signal.
Specifically, the main part and the components of a whole that can prestore the second voltage division signal that different adaptation types correspond, and then the main part can be controlled according to the adaptation type of the adapter of connecting and carry out the voltage division to the signal that charges and handle, obtain and output this second voltage division signal. The adaptation type may be DCP, SDP, CDP, etc., and is not limited herein.
And 906, outputting a second voltage division signal, wherein the second voltage division signal is used for indicating the maximum charging current of the split control battery unit.
Specifically, the split body prestores maximum charging currents corresponding to different adaptation types, and the split body can determine the adaptation type of the adapter connected with the main body according to a second voltage division signal output by the receiving main body and the second voltage division signal, so as to set the maximum charging current of the battery unit to be the maximum charging current corresponding to the adaptation type.
Through outputting the second voltage division signal corresponding to the adaptation type, the adaptation type of the adapter connected with the main body can be determined by the split body according to the second voltage division signal, so that the maximum charging current of the battery unit is set, the influence on the main body due to the fact that the charging current of the battery unit is too large can be avoided, and the charging safety can be improved.
As shown in fig. 10, in one embodiment, the provided charge control method further includes:
in step 1002, the current value of the charging signal provided by the adapter to the split body is detected.
And 1004, determining the current limit value of the sub-body based on the adaptation type and the charging information, wherein the charging information comprises the charging information of the main body and the charging information of at least one connected sub-body.
Specifically, the charging information of the main body includes the number of divisions to which the charging control is connected, the power information of the battery unit of the main body, and the like, and the charging information of the divisions includes the power information of the battery unit of the divisions, and the like. Optionally, in some embodiments, the charging information may further include a charged time period, temperature information, and the like of the main body and the sub body. The main body determines the current limit value of the sub-body based on the adaptation type and the charging information, specifically, the main body may equally distribute the current of the charging signal provided by the adapter of the adaptation type according to the number of connected sub-bodies to obtain the current limit value of each sub-body, or may distribute the current of the charging signal provided by the adapter of the adaptation type based on the electric quantity information of each sub-body, for example, the current limit value of a sub-body with a high residual electric quantity value may be lower than that of a sub-body with a low residual electric quantity value, where the determination manner of the circuit limit value is not limited.
The main body can control the first connection end to stop outputting the charging signal when the current value of the split charging signal exceeds the corresponding current limit value, namely, the split charging operation is stopped.
By determining the current limit value of each sub-body based on the adaptation type and the charging information, and controlling the switch unit to enter the off state when the current value of the charging signal received by the sub-body exceeds the current limit value, the situation that the charging operation of other sub-bodies or the main body is influenced due to the overlarge current extracted by the sub-bodies can be avoided.
As shown in fig. 11, in one embodiment, the provided charge control method further includes:
The second feedback signal is fed back based on a voltage signal of the battery cell at a separate body connected to the main body. Specifically, the voltage signal of the battery unit is the storage voltage of the battery unit, and the sub-body may perform voltage division processing on the voltage signal of the battery unit to obtain the second feedback signal.
And step 1104, calculating the electric quantity information of the corresponding split battery unit according to the second feedback signal.
The charge information may include, but is not limited to, at least one of SOC, low charge required for power supply, and storage voltage of the battery unit. The main body can calculate the electric quantity information of the split battery unit according to the second feedback signal.
And step 1106, controlling the time length for the first connection end to output the charging signal based on the electric quantity information of each connected split battery unit.
The main body can control the duration of the corresponding switch unit in the conducting state according to the electric quantity information of each connected split battery unit. Specifically, the main body may control a duration that the first connection terminal corresponding to the battery unit with low remaining power outputs the charging signal to be longer than a duration that the first connection terminal corresponding to the battery unit with high remaining power outputs the charging signal; the main body may also control the first connection end corresponding to the battery unit to stop outputting the charging signal when the remaining power of the battery unit exceeds a power threshold, where the power threshold may be set according to an actual application requirement, and is not limited herein, for example, the power threshold may be 70%, 80%, 90%, 100%, and the like.
By acquiring the second feedback signal fed back by the split bodies, calculating the electric quantity information of the battery units of the corresponding charging receiving circuit according to the second feedback signal, and controlling the time length of the charging signal output by the corresponding first connecting end based on the electric quantity information of each connected split body battery unit, the charging condition of each split body can be flexibly controlled, and the accuracy of charging distribution is improved.
It should be understood that although the various steps in the flow charts of fig. 8-11 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 8-11 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performing the sub-steps or stages is not necessarily sequential, but may be performed alternately or alternatingly with other steps or at least some of the sub-steps or stages of other steps.
The embodiment of the application also provides a computer readable storage medium. One or more non-transitory computer-readable storage media containing computer-executable instructions that, when executed by one or more processors, cause the processors to perform the steps of the charging control method.
A computer program product containing instructions which, when run on a computer, cause the computer to perform a charging control method.
Any reference to memory, storage, database or other medium used herein may include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM), which acts as external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), synchronous Link (Synchlink) DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and bus dynamic RAM (RDRAM).
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (17)
1. A charge control circuit, comprising:
the power supply input end is used for being connected with an external adapter and receiving a charging signal provided by the adapter;
the voltage division unit is connected with the power supply input end and used for carrying out voltage division processing on the charging signal to obtain a first voltage division signal;
the first connecting end is connected with the voltage division unit and used for outputting the first voltage division signal and receiving a first feedback signal responding based on the first voltage division signal; wherein the first voltage division signal is a signal for detecting whether the charge control circuit and the charge receiving circuit are connected; the first feedback signal is used for indicating that the charging control circuit is connected with the charging receiving circuit; and the switch unit is respectively connected with the power input end and the first connecting end and used for responding to the first feedback signal and entering a conducting state so as to control the first connecting end to output the charging signal.
2. The charge control circuit according to claim 1, wherein the first connection terminal comprises:
the first detection point is connected with the voltage division unit and used for outputting the first voltage division signal;
the second detection point is connected with the switch unit and used for receiving a first feedback signal responding based on the first voltage division signal;
and the charging port is connected with the switch unit and used for outputting the charging signal provided by the adapter.
3. The charge control circuit of claim 2, further comprising:
the first controller is connected with the power supply input end and used for detecting the adaptation type of the adapter;
the voltage division unit is further used for carrying out voltage division processing on the charging signal to obtain a second voltage division signal corresponding to the adaptation type;
the first detection point is configured to output the second voltage division signal, where the second voltage division signal is used to instruct a charging receiving circuit to control a maximum charging current of a battery unit, and the charging control circuit is connected to the charging receiving circuit through the first connection end.
4. The charge control circuit of claim 3, further comprising:
the current detection unit is respectively connected with the power supply input end and the charging port and is used for detecting the current value of the charging signal provided by the adapter to the charging receiving circuit;
the first controller is further connected with the switch unit and is used for determining a current limit value of the charging receiving circuit based on the adaptation type and charging information, wherein the charging information comprises charging information of the charging control circuit and charging information of at least one connected charging receiving circuit;
the switch unit is further configured to enter an off state when a current value of a charging signal of the charging receiving circuit exceeds the corresponding current limit value.
5. The charge control circuit of claim 1, wherein the first connection terminal is further configured to receive a second feedback signal, wherein the second feedback signal is fed back by a charge receiving circuit connected to the charge control circuit based on a voltage signal of a battery cell;
the charge control circuit further includes:
and the first controller is respectively connected with the switch unit and the first connecting end and is used for calculating the electric quantity information of the corresponding battery unit of the charging receiving circuit according to the second feedback signal and controlling the duration of the corresponding switch unit in a conducting state based on the electric quantity information of each connected battery unit of the charging receiving circuit.
6. The charge control circuit according to claim 2, wherein the voltage dividing unit includes a fixed resistor and at least one controllable resistor;
one end of the fixed resistor is connected with the power supply input end, and the other end of the fixed resistor is connected with the first detection point;
one end of the controllable resistor is connected with a node between the fixed resistor and the first detection point, and the other end of the controllable resistor is grounded.
7. A charge-receiving circuit, comprising:
the second connecting end is used for receiving a first voltage division signal sent by the connected charging control circuit; wherein the first voltage division signal is a signal for detecting whether the charge control circuit and the charge receiving circuit are connected;
the first feedback unit is connected with the second connecting end and used for controlling the second connecting end to output a first feedback signal based on the first partial pressure signal; the first feedback signal is used for indicating that the charging control circuit is connected with a charging receiving circuit;
the charging circuit is connected with the second connecting end and used for carrying out charging operation on the battery unit based on a charging signal when the charging signal is received, wherein the charging signal is provided by the charging control circuit in response to the first feedback signal;
the battery unit is connected with the charging circuit.
8. The charging receiving circuit of claim 7, wherein the second connection terminal is further configured to receive a second voltage division signal sent by the charging control circuit;
the charging receiving circuit further includes:
and the second controller is respectively connected with the second connecting end and the charging circuit and used for determining the adaptation type of the adapter connected with the charging control circuit according to the second voltage division signal and controlling the maximum charging current of the battery unit according to the adaptation type.
9. The charge-receiving circuit of claim 7, further comprising:
the second feedback unit is respectively connected with the second connecting end, the charging circuit and a node among the battery units and is used for carrying out voltage division processing on the voltage signals of the battery units to obtain second feedback signals;
the second connection end is further configured to output the second feedback signal, where the second feedback signal is used to indicate the connected charging control circuit to control the time length for providing the charging signal.
10. A split-type electronic device, comprising: the charging device comprises a main body and at least one split body which can be connected with the main body, wherein the main body comprises a charging control circuit, and the split body comprises a charging receiving circuit;
the charge control circuit includes:
the power supply input end is used for being connected with an external adapter and receiving a charging signal provided by the adapter;
the voltage division unit is connected with the power supply input end and used for carrying out voltage division processing on the charging signal to obtain a first voltage division signal;
the first connecting end is connected with the voltage division unit and used for outputting the first voltage division signal and receiving a first feedback signal based on the response of the first voltage division signal; wherein the first voltage division signal is a signal for detecting whether the charge control circuit and the charge receiving circuit are connected; the first feedback signal is used for indicating that the charging control circuit is connected with the charging receiving circuit;
the switch unit is respectively connected with the power input end and the first connecting end and used for responding to the first feedback signal and entering a conducting state so as to control the first connecting end to output the charging signal;
the charge receiving circuit includes:
the second connecting end is used for receiving the first voltage division signal sent by the connected main body;
the first feedback unit is connected with the second connecting end and used for controlling the second connecting end to output the first feedback signal based on the first partial pressure signal;
the charging circuit is connected with the second connecting end and used for carrying out charging operation on the battery unit based on the charging signal when the charging signal is received;
the battery unit is connected with the charging circuit.
11. The split type electronic device according to claim 10, wherein the first connection terminal includes:
the first detection point is connected with the voltage division unit and used for outputting the first voltage division signal;
the second detection point is connected with the switch unit and used for receiving a first feedback signal responding based on the first voltage division signal;
and the charging port is connected with the switch unit and used for outputting the charging signal provided by the adapter.
12. The split electronic device of claim 10, wherein the charge control circuit further comprises:
the first controller is connected with the power supply input end and used for detecting the adaptation type of the adapter;
the voltage division unit is further used for carrying out voltage division processing on the charging signal to obtain a second voltage division signal corresponding to the adaptation type;
the first connection end is used for outputting the second voltage division signal;
the second connection end of the charging receiving circuit is further configured to receive the second voltage division signal output by the first connection end;
the charging reception circuit further includes:
and the second controller is connected with the second connecting end and the charging circuit and used for determining the adaptation type of the adapter connected with the charging control circuit according to the second voltage division signal and controlling the maximum charging current of the battery unit according to the adaptation type.
13. The split type electronic device according to claim 10, wherein the charge receiving circuit further comprises:
the second feedback unit is respectively connected with the second connecting end, the charging circuit and a node among the battery units and is used for carrying out voltage division processing on the voltage signals of the battery units to obtain second feedback signals;
the second connection end is further used for outputting the second feedback signal;
the first connection end of the charging control circuit is further configured to receive the second feedback signal;
the charge control circuit further includes:
and the first controller is respectively connected with the switch unit and the first connecting end and is used for calculating the electric quantity information of the corresponding split battery unit according to the second feedback signal and controlling the duration of the corresponding switch unit in a conducting state based on the electric quantity information of each connected split battery unit.
14. A charging control method is applied to a main body of a split type electronic device, wherein the main body comprises a first connecting end, and the main body can be connected with at least one split body through the first connecting end, and the method comprises the following steps:
receiving a charging signal provided by an external adapter;
performing voltage division processing on the charging signal to obtain a first voltage division signal, and outputting the first voltage division signal through a first connecting end; the first voltage division signal is a signal for detecting whether a charging control circuit and a charging receiving circuit are connected or not;
when a first feedback signal responding based on the first voltage division signal is received, the first connection end is controlled to output the charging signal, the charging signal is used for indicating the split charging, and the first feedback signal is used for indicating that the charging control circuit is connected with a charging receiving circuit.
15. The method of claim 14, further comprising:
detecting an adaptation type of the adapter;
performing voltage division processing on the charging signal according to the adaptation type to obtain a second voltage division signal;
and outputting the second voltage division signal, wherein the second voltage division signal is used for indicating the maximum charging current of the split control battery unit.
16. The method of claim 15, further comprising:
detecting a current value of a charging signal provided by the adapter to the split body;
determining a current limit value of the sub-body based on the adaptation type and charging information, wherein the charging information comprises charging information of the main body and charging information of at least one connected sub-body;
and when the current value of the charging signal exceeds the corresponding current limit value, controlling the first connecting end to stop outputting the charging signal.
17. The method of claim 14, further comprising:
receiving a second feedback signal of the split feedback;
calculating the electric quantity information of the corresponding split battery unit according to the second feedback signal;
and controlling the time length of the first connection end for outputting the charging signal based on the electric quantity information of each connected split battery unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910347600.8A CN111864818B (en) | 2019-04-28 | 2019-04-28 | Charging control circuit, charging control method, charging receiving circuit and split type electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910347600.8A CN111864818B (en) | 2019-04-28 | 2019-04-28 | Charging control circuit, charging control method, charging receiving circuit and split type electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111864818A CN111864818A (en) | 2020-10-30 |
| CN111864818B true CN111864818B (en) | 2022-06-14 |
Family
ID=72964864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910347600.8A Active CN111864818B (en) | 2019-04-28 | 2019-04-28 | Charging control circuit, charging control method, charging receiving circuit and split type electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111864818B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113923555B (en) * | 2021-10-13 | 2024-02-06 | 维沃移动通信有限公司 | Charging control circuit and charging control method for earphone |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101702530A (en) * | 2009-11-19 | 2010-05-05 | 西安迅湃快速充电技术有限公司 | Vehicle-mounted charging device for electric vehicles |
| JP2012120270A (en) * | 2010-11-29 | 2012-06-21 | Sanyo Electric Co Ltd | Switching device, charge control device of secondary battery, and secondary battery device |
| CN103580246A (en) * | 2013-09-30 | 2014-02-12 | 厦门宇虹达光电科技有限公司 | Lead-acid storage battery charging circuit and charger |
| CN103698640B (en) * | 2013-12-31 | 2016-04-27 | 青岛歌尔声学科技有限公司 | A kind of intelligent charge testing circuit and portable power source |
| CN105119378B (en) * | 2015-09-09 | 2019-01-11 | 国网浙江省电力公司湖州供电公司 | Low-voltage distributing line on-line monitoring system |
| JP6615873B2 (en) * | 2016-02-05 | 2019-12-04 | オッポ広東移動通信有限公司 | Charging method, adapter and mobile terminal |
| CN106385076B (en) * | 2016-10-26 | 2019-06-25 | 珠海市魅族科技有限公司 | Charging input and output-controlling device, terminal, charging equipment and control method |
| CN108574310A (en) * | 2017-03-07 | 2018-09-25 | 厦门歌乐电子企业有限公司 | A kind of USB interface charging circuit |
| CN207304045U (en) * | 2017-08-08 | 2018-05-01 | 广东小天才科技有限公司 | A kind of quick-charging circuit, adapter and mobile terminal |
| CN108899959A (en) * | 2018-08-07 | 2018-11-27 | Oppo广东移动通信有限公司 | Electronic equipment charge protector, method, apparatus, electronic equipment and medium |
| CN109638918B (en) * | 2018-12-25 | 2020-10-30 | 昆山龙腾光电股份有限公司 | Charging circuit and electronic equipment |
-
2019
- 2019-04-28 CN CN201910347600.8A patent/CN111864818B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111864818A (en) | 2020-10-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9966770B2 (en) | Charging apparatus and charging control circuit and control method thereof | |
| CN207021751U (en) | For preventing cell voltage from exceeding the equipment and system of voltage threshold | |
| US9007029B2 (en) | Method and system for managing the state of charge of a lithium-ion cell module | |
| US10277052B2 (en) | Controlling power delivery to a battery | |
| CN102472803A (en) | Full charge capacity value correction circuit, battery pack, and charging system | |
| CN101192757A (en) | Charging system, charging device and battery pack | |
| CN101421902A (en) | Charging method, battery pack, and its charger | |
| US20210354585A1 (en) | Electric meter and corresponding operating method | |
| CN110999023A (en) | Method and device for balancing the state of charge of individual cells of a battery system | |
| EP3185348B1 (en) | A battery information detection and control method, smart battery,terminal and computer storage medium | |
| KR20180114838A (en) | Battery system | |
| CN111993942B (en) | Charging and discharging control equipment, method and device for electric automobile and charging gun | |
| CN111864818B (en) | Charging control circuit, charging control method, charging receiving circuit and split type electronic equipment | |
| US20160099488A1 (en) | Method for the switching of a number of battery cells in a battery and battery system with a battery comprising a number of battery cell units, each comprised of a battery cell and a battery cell monitoring module associated with said battery cell | |
| US2423134A (en) | Accumulator charging system | |
| CN107733000B (en) | Charging method and charger | |
| US20170212174A1 (en) | Backup power supply system, deterioration estimating device, and deterioration estimating method | |
| WO2013169493A1 (en) | Methods and systems for battery management and charger control | |
| US11050267B2 (en) | Power supply system | |
| JP6853884B2 (en) | Battery monitoring device | |
| US10181749B2 (en) | Charging system | |
| CN108496289B (en) | Battery charging control method, charging equipment, user terminal equipment and system | |
| US11909247B2 (en) | Semiconductor device for controlling a charge of a battery cell | |
| CN111993943B (en) | Discharge conversion equipment, method and device for electric automobile and storage medium | |
| KR101365160B1 (en) | Intelligent battery charging device |
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 |