WO2015113341A1 - 电子设备充电装置及其电源适配器 - Google Patents
电子设备充电装置及其电源适配器 Download PDFInfo
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- WO2015113341A1 WO2015113341A1 PCT/CN2014/077284 CN2014077284W WO2015113341A1 WO 2015113341 A1 WO2015113341 A1 WO 2015113341A1 CN 2014077284 W CN2014077284 W CN 2014077284W WO 2015113341 A1 WO2015113341 A1 WO 2015113341A1
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Classifications
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- 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
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
-
- 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
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00036—Charger exchanging data with battery
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
-
- 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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- 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
- H02J7/007—Regulation of charging or discharging current or voltage
-
- 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
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
- H02J7/007184—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage in response to battery voltage gradient
-
- 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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/10—Control circuit supply, e.g. means for supplying power to the control circuit
-
- 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
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
-
- 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
- H02J7/0034—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using reverse polarity correcting or protecting circuits
-
- 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
-
- 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
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/00714—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current
Definitions
- the invention belongs to the technical field of charging, and particularly relates to an electronic device charging device and a power adapter thereof.
- the battery of the electronic device is charged by its power adapter, and the adapter usually uses a constant voltage output method to charge the battery, and for a large-capacity battery, charging the battery through the constant voltage output method causes the charging time to pass. Long, so the above prior art cannot achieve fast charging of the battery to shorten the charging time.
- the present invention is achieved by a power adapter that is connected to a communication interface of an electronic device through its communication interface and that charges a battery in the electronic device;
- the power adapter includes an EMI filter circuit, and a high voltage a rectifier filter circuit, an isolation transformer, an output filter circuit, and a voltage tracking and control circuit;
- the power adapter further includes a power module, a main control module, a potential adjustment module, a current detection module, a voltage detection module, and an output switch module;
- the input end of the power module is connected to the secondary end of the isolation transformer, and the power terminal of the main control module, the power terminal of the potential adjustment module, and the power terminal of the current detection module are connected to the power module.
- the output terminal of the main control module and the high potential end of the potential adjustment module are connected to the positive output end of the output filter circuit, and the potential adjustment end of the potential adjustment module is connected to the voltage tracking and a control circuit, a DC input end of the current detecting module is connected to a positive output end of the output filter circuit, and a current detecting end of the current detecting module is connected to a current detecting end of the main control module, where the main control module
- the clock output end and the data output end are connected to the clock input end and the data input end of the potential adjustment module, and the first detecting end and the second detecting end of the voltage detecting module are respectively connected to the DC output end of the current detecting module and the a negative output end of the output filter circuit, wherein the first output end and the second output end of the voltage
- the main control module controls the output switch module to turn off a direct current output of the power adapter, and the voltage detecting module is configured to the power adapter
- the output voltage is detected and the voltage detection signal is fed back to the main control module, and the main control module determines, according to the voltage detection signal, whether the output voltage of the power adapter is greater than a voltage threshold, and the main control module continues to Determining an output voltage of the power adapter, if not, the main control module controls the output switch module to open a DC output of the power adapter, and drive the voltage tracking and control circuit through the potential adjustment module
- the output voltage of the isolation transformer is set to a normal output voltage
- the current detecting module detects an output current of the power adapter and feeds back a current detection signal to the main control module, when the main control module is according to the current
- the detection signal determines that the output current of the power adapter is at a preset time interval When the current interval is configured, the main control module performs fast charge
- Another object of the present invention is to provide an electronic device charging apparatus including the power adapter and a charging control module; the power adapter is connected to a communication interface of the electronic device through a communication interface thereof, and is in the electronic device The battery is charged; the charging control module is built in the electronic device, and is connected to the power adapter through a communication interface of the electronic device;
- the main control module controls the output switch module to turn off a direct current output of the power adapter, and the voltage detecting module is configured to the power adapter
- the output voltage is detected and the voltage detection signal is fed back to the main control module, and the main control module determines, according to the voltage detection signal, whether the output voltage of the power adapter is greater than a voltage threshold, and the main control module continues to Determining an output voltage of the power adapter, if not, the main control module controls the output switch module to open a DC output of the power adapter, and drive the voltage tracking and control circuit through the potential adjustment module
- the output voltage of the isolation transformer is set to a normal output voltage
- the current detecting module detects an output current of the power adapter and feeds back a current detection signal to the main control module, when the main control module is according to the current
- the detection signal determines that the output current of the power adapter is at a preset time interval When the current control interval is configured, the main control module performs fast
- the main control module drives the voltage tracking and control circuit to adjust the output voltage of the isolation transformer by the potential adjustment module to make the power adapter follow the fast charging current value and the fast charging voltage.
- the value outputs direct current, and the charging control module simultaneously charges the battery by introducing direct current from the power adapter through a communication interface of the electronic device.
- the invention adopts a power adapter including a power module, a main control module, a potential adjustment module, a current detection module, a voltage detection module and an output switch module, and the battery is charged in a normal charging mode after the power adapter is powered on or reset.
- the power adapter performs fast charge inquiry communication with the electronic device, and after the electronic device issues a quick charge instruction command to the power adapter, the power adapter is according to the electronic device.
- the feedback battery voltage information adjusts the output voltage, and when the output voltage meets the fast charging voltage condition preset by the electronic device, the power adapter adjusts the output current and the output voltage according to the fast charging mode to charge the battery, thereby realizing the battery Fast charging to shorten the charging time.
- FIG. 1 is a block diagram of a power adapter according to an embodiment of the present invention.
- FIG. 2 is a schematic circuit configuration diagram of the power adapter shown in FIG. 1;
- FIG. 3 is a block diagram of a charging device of an electronic device according to an embodiment of the present invention.
- FIG. 4 is a schematic circuit configuration diagram of the charging control module shown in FIG. 3;
- FIG. 5 is another exemplary circuit configuration diagram of the charging control module shown in FIG.
- FIG. 1 shows a module structure of a power adapter according to an embodiment of the present invention. For convenience of description, only parts related to the embodiment of the present invention are shown, which are described in detail as follows:
- the power adapter 100 provided by the embodiment of the present invention is connected to the communication interface 20 of the electronic device 200 through its communication interface 10, and charges the battery 201 in the electronic device 200.
- the power adapter 100 includes an EMI filter circuit 101, a high voltage rectification filter circuit 102, an isolation transformer 103, an output filter circuit 104, and a voltage tracking and control circuit 105.
- the EMI filter circuit 101 performs electromagnetic interference filtering
- the power supply is filtered by the high voltage rectification filter circuit.
- 102 performs rectification and filtering processing to output high-voltage direct current, which is electrically isolated by the isolation transformer 103 and output to the output filter circuit 104 for filtering processing to charge the battery, and the voltage tracking and control circuit 105 is isolated according to the output voltage of the output filter circuit 104.
- the output voltage of the transformer 103 is adjusted.
- the power adapter 100 further includes a power module 106, a main control module 107, a potential adjustment module 108, a current detection module 109, a voltage detection module 110, and an output switch module 111.
- the input end of the power module 106 is connected to the secondary end of the isolation transformer 103.
- the power terminal of the main control module 107, the power terminal of the potential adjustment module 108, and the power terminal of the current detection module 109 are connected to the output end of the power module 108.
- the high potential end of the module 107 and the high potential end of the potential adjustment module 108 are both connected to the positive output end of the output filter circuit 104.
- the potential adjustment end of the potential adjustment module 108 is connected to the voltage tracking and control circuit 105, and the DC input terminal of the current detecting module 109.
- the positive output terminal of the output filter circuit 104 is connected to the current detecting terminal of the main control module 107.
- the clock output terminal and the data output terminal of the main control module 107 are connected to the clock input terminal of the potential adjusting module 108.
- the data input end, the first detecting end and the second detecting end of the voltage detecting module 110 are respectively connected to the DC output end of the current detecting module 109 and the negative output end of the output filter circuit 104, and the first output end of the voltage detecting module 110 and the first
- the two output ends are respectively connected to the first voltage detecting end and the second voltage detecting end of the main control module 107, and the input of the output switch module 111 is output.
- the output end of the output switch module 111 is connected to the communication output interface 10, and the output end of the output switch module 111 is connected to the third detection end of the voltage detection module 110.
- the ground terminal of the output switch module 111 is connected to the output filter circuit
- the negative output end of 104, the controlled end and the power end of the output switch module 111 are respectively connected to the switch control end of the main control module 107 and the secondary end of the isolation transformer 103, the output negative end of the output filter circuit 104, and the output switch module 111.
- the output end, the first communication end and the second communication end of the main control module 107 are connected to the power adapter 100 communication interface 10.
- the main control module 107 controls the output switch module 111 to turn off the DC output of the power adapter 100, and the voltage detecting module 110 detects the output voltage of the power adapter 100 and feeds back the voltage.
- the main control module 107 determines whether the output voltage of the power adapter 100 is greater than a voltage threshold (eg, 2V) according to the voltage detection signal, and the main control module 107 continues to perform the output voltage of the power adapter 100.
- a voltage threshold eg, 2V
- the main control module 107 controls the output switch module 111 to turn on the DC output of the power adapter 100, and drives the voltage tracking and control circuit 105 through the potential adjustment module 108 to set the output voltage of the isolation transformer 103 to a conventional output voltage (eg, 5.1V); the current detecting module 109 detects the output current of the power adapter 100 and feeds back the current detecting signal to the main control module 107.
- the main control module 107 determines the output current of the power adapter 100 according to the current detecting signal, the preset current is at a preset time. When the interval is in the regular current interval, the main control module 107 The electronic device 200 performs fast charge inquiry communication.
- the main control module 107 drives the voltage tracking and control circuit through the potential adjustment module 108 according to the battery voltage information fed back by the electronic device 200.
- 105 adjusts the output voltage of the isolation transformer 103, and when the output voltage of the power adapter 100 meets the fast charging voltage condition preset by the electronic device 200, the main control module 107 drives the voltage tracking and control circuit 105 to adjust through the potential adjustment module 108.
- the output voltage of the transformer 103 is isolated so that the power adapter 100 outputs DC power in accordance with the fast charge current value (4A) and the fast charge voltage value (3.4V to 4.8V).
- the current detecting module 109 continues to perform the output current of the power adapter 100. Detecting and feeding back the current detection signal to the main control module 107; if the output current value of the power adapter 100 is greater than the current upper limit value (such as 4A), the main control module 107 controls the output switch module 111 to turn off the DC output of the power adapter 100 to achieve short circuit protection. .
- the current lower limit value e.g. 1A
- the main control module 107 sends a fast charge inquiry command to the electronic device 200, and the electronic device 200 determines whether the voltage of the battery 201 reaches the fast charge voltage value according to the fast charge inquiry command. If yes, the fast control instruction command is fed back to the main control module 107, otherwise, The main control module 107 feeds back the fast charge veto command.
- the main control module 107 sends the voltage tracking and control circuit 105 to adjust the output voltage of the isolation transformer 103 according to the battery voltage information fed back by the electronic device 200.
- the main control module 107 sends out according to the electronic device 200.
- the fast charge indication command sends a battery voltage acquisition request to the electronic device 200, and the electronic device 200 feeds back the battery voltage information to the main control module 107 according to the battery voltage acquisition request, and the main control module 107 is driven by the potential adjustment module 108 according to the battery voltage information.
- the voltage tracking and control circuit 105 adjusts the output voltage of the isolation transformer 103 to the above-described fast charge voltage setting value.
- the main control module 107 drives the voltage through the potential adjustment module 108 when the output voltage of the power adapter 100 meets the fast charging voltage condition preset by the electronic device 200 (ie, in the fast charging voltage rated range or equal to the fast charging voltage rating).
- the tracking and control circuit 105 adjusts the output voltage of the isolation transformer 103 to cause the power adapter 100 to output DC power according to the fast charge current value and the fast charge voltage value.
- the main control module 107 performs fast charge voltage inquiry communication with the electronic device 200, and the main control module 107 feeds back the output voltage information to the electronic device 200; when the output voltage of the power adapter 100 is in the fast charge voltage rated range or equal to the fast charge voltage rating
- the electronic device 200 determines that the output voltage of the power adapter 100 meets the fast charging voltage condition preset by the electronic device 200, and feeds back the fast charging mode to enter the command to the main control module 107; according to the fast charging mode, the main control module 107 passes the instruction.
- the potential adjustment module 108 drives the voltage tracking and control circuit 105 to adjust the output voltage of the isolation transformer 103 to cause the power adapter 100 to output DC power in accordance with the fast charge current value and the fast charge voltage value.
- the electronic device 200 sends a voltage deviation feedback.
- the signal is sent to the main control module 107.
- the main control module 107 drives the voltage tracking and control circuit 105 to adjust the output voltage of the isolation transformer 103 according to the voltage deviation feedback signal, and continues to perform fast charge voltage inquiry communication with the electronic device 200.
- the voltage deviation feedback signal includes a voltage low feedback signal and a voltage high feedback signal. If the voltage is low, the main control module 107 drives the voltage tracking and control circuit 105 to be raised by the potential adjustment module 108 according to the voltage low feedback signal. The output voltage of the isolation transformer 103 is isolated. If the voltage is high, the main control module 107 drives the voltage tracking and control circuit 105 to lower the output voltage of the isolation transformer 103 via the potential adjustment module 108 according to the voltage bias feedback signal.
- the main control module 107 passes the potential adjustment module
- the driving voltage tracking and control circuit 105 adjusts the output voltage of the isolation transformer 103 to cause the power adapter 100 to output DC power according to the fast charging current value and the fast charging voltage value.
- the main control module 107 drives the voltage tracking and control circuit 105 to the isolation transformer through the potential adjustment module 108.
- the output voltage of 103 is adjusted so that the output current and the output voltage of the power adapter 100 are respectively adjusted to a fast charge current value (such as 4A) and a fast charge voltage value (which may be any value from 3.4V to 4.8V), and the main control
- the module 107 obtains the battery voltage information from the electronic device 200, and determines whether the difference between the output voltage of the power adapter 100 and the battery voltage is greater than a differential pressure threshold (eg, 0.8 V) according to the voltage detection signal fed back by the voltage detecting module 110.
- a differential pressure threshold eg, 0.8 V
- the line impedance between the power adapter 100 and the electronic device 200 and the battery 201 is abnormal, and the main control module 107 controls the output switch module 111 to turn off the DC output of the adapter 100. Otherwise, the main control module 107 is driven by the potential adjustment module 108 according to the battery voltage information. Voltage tracking and control circuit The output voltage of the isolation transformer 103 is adjusted to adjust the output current of the power adapter 100, and the battery voltage information is continuously obtained from the charging control module 300 to cyclically adjust the output of the power adapter 100 during the rapid charging of the battery 201. The current can thereby optimize the rapid charging process of the battery 201 to achieve the purpose of shortening the charging time.
- the main control module 107 drives the voltage tracking and control circuit through the potential adjustment module 108.
- the electronic device 200 detects the voltage of the battery 201 if the voltage of the battery 201 is greater than the fast charge threshold voltage (eg 4.35V), the electronic device 200 stops charging the battery 201 from the power adapter 100, and feeds back the fast charge off command to the main control module 107, then the main control module 107 exits the fast charging mode according to the fast charge off command. And return to the normal charging mode.
- the fast charge threshold voltage eg 4.35V
- FIG. 2 shows an example circuit configuration of the above-described power adapter 100.
- FIG. 2 shows an example circuit configuration of the above-described power adapter 100.
- the power module 106 includes:
- the first end of the first capacitor C1 and the input power pin Vin of the voltage regulator chip U1 and the enable pin EN are connected to the input end of the power module 106, and the second end of the first capacitor C1 and the voltage regulator chip U1
- the ground pin GND is connected to the ground
- the switch pin SW of the voltage regulator chip U1 and the first end of the second capacitor C2 are connected to the first end of the first inductor L1
- the internal switch pin BOOST of the voltage regulator chip U1 is
- the second end of the second capacitor C2 is connected to the cathode of the first diode D1
- the feedback voltage pin FB of the voltage regulator chip U1 is connected to the first end of the first resistor R1 and the first end of the second resistor R2.
- the second end of the first inductor L1 and the cathode of the second diode D2 are connected to the first end of the second inductor L2, the second end of the second inductor L2 and the anode of the first diode D1, the first resistor
- the common terminal formed by the second end of R1 and the first end of the third capacitor C3 is the output end of the power module 106, the anode of the second diode D2 and the second end of the second resistor R2 and the third capacitor
- the second end of C3 is connected to the ground.
- the power module 106 uses the voltage regulator chip U1 as a core to perform voltage conversion processing on the secondary terminal voltage of the isolation transformer 103, and then outputs a voltage of +3.3 V to supply power to the main control module 107, the potential adjustment module 108, and the current detection module 109;
- the chip U1 may specifically be a step-down DC/DC converter of the type MCP16301.
- the main control module 107 includes:
- the power supply pin VDD of the main control chip U3 is the power supply end of the main control module 107, the ground VSS of the main control chip U3 is grounded, the first input/output pin RA0 of the main control chip U3 is connected, and the first end of the third resistor R3 is connected.
- the power supply pin VDD of the main control chip U3, the second end of the third resistor R3 and the first end of the fourth resistor R4 are connected to the positive electrode CATHODE of the reference voltage chip U3, the negative electrode ANODE of the reference voltage chip U3 is grounded, and the reference voltage chip U3
- the empty pin NC is connected, the second end of the fourth resistor R4 is connected to the second input/output pin RA1 of the main control chip U2, and the third input/output pin RA2 of the main control chip U2 is the current detecting end of the main control module 107.
- the fourth input/output pin RA3 of the main control chip U2 is connected to the first end of the fifth resistor R5, and the second end of the fifth resistor R5 and the first end of the fourth capacitor C4 are connected to the power supply pin VDD of the main control chip U2.
- the second end of the fourth capacitor C4 is grounded, the fifth input/output pin RA4 of the main control chip U2 is the switch control end of the main control module 107, and the sixth input/output pin RA5 of the main control chip U2 is connected to the first of the sixth resistor R6.
- the second end of the sixth resistor R6 is connected to the gate of the first NMOS transistor Q1 to the seventh resistor R7.
- the second end of the seventh resistor R7 is connected to the ground of the first NMOS transistor Q1, the drain of the first NMOS transistor Q1 is connected to the first end of the eighth resistor R8, and the second end of the eighth resistor R8 is connected.
- the seventh input output pin RC0 and the eighth input output pin RC1 of the main control chip U2 are respectively the clock output end and the data output end of the main control module 107, and the tenth of the main control chip U2
- the input/output pin RC3 and the ninth input/output pin RC2 are respectively a first voltage detecting end and a second voltage detecting end of the main control module 107, and an eleventh input/output pin RC4 and a twelfth input/output pin RC5 of the main control chip U2 Connecting the first end of the ninth resistor R9 and the first end of the tenth resistor R10, respectively, the first end of the eleventh resistor R11 and the first end of the
- the main control chip U2 may be a single-chip microcomputer of the type PIC12LF1822, PIC12F1822, PIC16LF1823 or PIC16F1823, and the reference voltage chip U3 may be a voltage reference type LM4040.
- the potential adjustment module 108 includes:
- the common end of the first end of the fifteenth resistor R15 and the first end of the sixteenth resistor R16, the power supply pin VDD of the digital potentiometer U4, and the first end of the fifth capacitor C5 is the power supply end of the potential adjustment module 108, Five capacitor The second end of C5 and the first end of the sixth capacitor C6, the ground VSS of the digital potentiometer U4, and the seventeenth resistor The first end of the R17 is connected to the ground, the second end of the sixth capacitor C6 is connected to the power pin VDD of the digital potentiometer U4, and the second end of the fifteenth resistor R15 is shared with the serial data pin SDA of the digital potentiometer U4.
- the contact is the data input end of the potential adjustment module 108, the second end of the sixteenth resistor R16 and the clock input pin of the digital potentiometer U4
- the common contact point of SCL is the clock input end of the potential adjustment module 108, the address pin A0 of the digital potentiometer U4 is grounded, and the first potential pin P0A of the digital potentiometer U4 and the first end of the eighteenth resistor R18 are connected to the first end.
- the second end of the seventeen resistor R17, the second end of the eighteenth resistor R18 and the second potential pin P0B of the digital potentiometer U4 are connected to the first end of the nineteenth resistor R19, and the nineteenth resistor R19
- the two ends are the high potential end of the potential adjustment module 108, and the potential tap pin P0W of the digital potentiometer U4 is the potential adjustment end of the potential adjustment module 108.
- the digital potentiometer U4 adjusts the internal sliding varistor according to the clock signal and the data signal outputted by the main control chip U2, so that the potential of the tap end of the internal sliding varistor (ie, the potential tapping pin P0W of the digital potentiometer U4) changes.
- the voltage tracking and control circuit 104 is caused to adjust the output voltage of the isolation transformer 103 following the potential change; the digital potentiometer U4 may specifically be a digital potentiometer of the MCP45X1.
- the current detecting module 109 includes:
- the first end and the second end of the twentieth resistor R20 are a DC input end and a DC output end of the current detecting module 109, respectively, and the first end of the twenty-first resistor R21 and the first end of the twenty-second resistor R22 are respectively Connecting the first end and the second end of the twentieth resistor R20, the second end of the twenty-first resistor R21 and the first end of the seventh capacitor C7 are connected to the input positive pin IN+ of the current detecting chip U5, and the twentieth The second end of the second resistor R22 and the first end of the eighth capacitor C8 are connected to the input negative pin IN- of the current detecting chip U5, and the common contact of the power supply pin V+ of the current detecting chip U5 and the first end of the ninth capacitor C9
- the empty pin NC of the current detecting chip U5 is connected
- the output pin OUT of the current detecting chip U5 is connected to the first end of the twenty-third resistor R23
- Galvanometer foot chip U5 is the GND, a first reference voltage REF1 and a second reference voltage pin REF2 common pin connected to ground.
- the twentieth resistor R20 acts as a current-sense resistor to the output filter circuit
- the output current of 104 ie, the output current of the power adapter 100
- the current detecting signal is output to the main control chip U2 according to the voltage across the twentieth resistor R20 through the current detecting chip U5;
- the current detecting chip U5 may be specifically a model number Current shunt monitor for the INA286.
- the voltage detection module 110 includes:
- the first end of the twenty-fifth resistor R25 is the first detecting end of the voltage detecting module 110, and the twenty-fifth resistor
- the common end of the second end of the R25 and the first end of the twenty-sixth resistor R26 and the first end of the eleventh capacitor C11 is the second output end of the voltage detecting module 110, and the second end of the twenty-sixth resistor R26 Voltage detection module
- the second end of the eleventh capacitor C11 is connected to the first end of the twelfth capacitor C12 and the first end of the twenty-seventh resistor R27 to the second end of the twenty-sixth resistor R26.
- the common end of the second end of the twelfth capacitor C12 and the second end of the twenty-seventh resistor R27 and the first end of the twenty-eighth resistor R28 is the first output end of the voltage detecting module 110, and the twenty-eighth The second end of the resistor R28 is the third detecting end of the voltage detecting module 110.
- the output switch module 111 includes:
- the first end of the twenty-ninth resistor R29 is a controlled end of the output switch module 111, and the second end of the twenty-ninth resistor R29 and the first end of the thirtieth resistor R30 are connected to the first NPN transistor N1
- the first end of the thirteenth capacitor C13 and the first end of the thirty-first resistor R31 and the first end of the thirty-second resistor R32 are connected to the cathode of the third diode D3, and the third diode
- the anode of the tube D3 is the power terminal of the output switch module 111, and the second end of the 31st resistor R31 and the base of the second NPN transistor N2 are connected to the collector of the first NPN transistor N1, and the thirty-second
- the second end of the resistor R32 is connected to the cathode of the Zener diode ZD and the first end of the 33rd resistor R33 to the collector of the second NPN transistor N2, and the second end of the thirtieth resist
- FIG. 3 is a block diagram showing the structure of an electronic device charging apparatus according to an embodiment of the present invention. For convenience of description, only parts related to the embodiment of the present invention are shown, which are described in detail as follows:
- the electronic device charging device provided by the embodiment of the present invention includes a power adapter 1 and a charging control module 2; the power adapter 1 is connected to the communication interface 20 of the electronic device 3 through the communication interface 10, and charges the battery 31 in the electronic device; charging control The module 2 is built in the electronic device 3 and is connected to the power adapter 1 via the communication interface 20 of the electronic device 3.
- the power adapter 1 has the same structure as the power adapter 100 shown in FIGS. 1 and 2, and therefore will not be described again.
- the main control module 107 controls the output switch module 111 to turn off the DC output of the power adapter 1, and the voltage detecting module 110 detects the output voltage of the power adapter 1 and feeds back the voltage.
- the main control module 107 determines whether the output voltage of the power adapter 1 is greater than a voltage threshold (eg, 2V) according to the voltage detection signal, and the main control module 107 continues to perform the output voltage of the power adapter 1 .
- a voltage threshold eg, 2V
- the main control module 107 controls the output switch module 111 to turn on the DC output of the power adapter 1, and drives the voltage tracking and control circuit 105 through the potential adjustment module 108 to set the output voltage of the isolation transformer 103 to a conventional output voltage (eg, 5.1V); the current detecting module 109 detects the output current of the power adapter 100 and feeds back the current detecting signal to the main control module 107.
- the main control module 107 determines the output current of the power adapter 1 according to the current detecting signal, the preset current is at a preset time.
- the driving voltage tracking and control circuit 105 adjusts the output voltage of the isolation transformer 103, and when the output voltage of the power adapter 1 meets the fast charging voltage condition preset by the charging control module 2, the main control module
- the voltage tracking and control circuit 105 is driven by the potential adjustment module 108 to adjust the output voltage of the isolation transformer 103 to cause the power adapter 100 to output DC power according to the fast charge current value (4A) and the fast charge voltage value (3.4V ⁇ 4.8V), and the charge control is performed.
- the module 2 simultaneously charges the battery 31 by introducing direct current from the power adapter 1 through the communication interface 20 of the electronic device 3.
- FIG. 4 shows an example circuit configuration of the above-described charging control module 2.
- FIG. 4 shows an example circuit configuration of the above-described charging control module 2.
- the charging control module 2 includes:
- Battery connector J1 main controller U6, thirteenth capacitor C13, thirty-sixth resistor R36, thirty-seventh resistor R37, fourteenth capacitor C14, first Schottky diode SD1, second Schottky diode SD2, fifteenth capacitor C15, thirty-eighth resistor R38, thirty-ninth resistor R39, fortieth resistor R40, third NPN type transistor N3, fourth NMOS tube Q4 and fifth NMOS tube Q5;
- the battery connector J1 is connected to the plurality of electrodes of the battery 300, and the first leg 5A-1 and the second leg of the battery connector J1 5A-2 is connected to the ground, the first grounding pin GND1 and the second grounding pin GND2 of the battery connector J1 are connected to the ground, the first input/output pin RA0 of the main controller U6 and the seventh leg 5A of the battery connector J1 -3 is connected to the eighth pin 5A-4, and the second input/output pin RA1, the seventh input/output pin RC0, the eighth input/output pin RC1, and the ninth input/output pin RC2 of the main controller U6 are respectively connected to the battery connector J1.
- the sixth pin 2A-4, the fifth pin 2A-3, the fourth pin 2A-2 and the third pin 2A-1 are connected, and the analog ground VSS and the ground GND of the main controller U6 are grounded, and the main controller U6
- the first empty pin NC0 and the second empty pin NC1 are both vacant, and the power pin VDD of the main controller U6 and the first end of the thirteenth capacitor C13 are both connected to the seventh leg 5A-3 of the battery connector J1 and the first
- the eight-pin 5A-4 is connected in common, the fourth input/output pin RA3 of the main controller U6 and the eleventh input/output pin RC4 are in data communication with the electronic device, and the thirty-sixth resistor R36 is connected to the fourth input of the main controller U6.
- the sixth input/output pin RA5 and the twelfth input/output pin RC5 of the main controller U6 are respectively connected to the first pass of the main control module 107 in the adapter 100.
- the first end of the thirty-seventh resistor R37 and the first end of the thirty-eighth resistor R38 are connected to the tenth input and output end RC3 of the main controller U6, and the thirty-seventh resistor R37 is connected to the signal terminal and the second communication end.
- the second end is connected to the power pin VDD of the main controller U6, the second end of the thirty-eighth resistor R38 is connected to the base of the third NPN transistor N3, and the fifth input/output terminal RA4 of the main controller U6 is connected to the fourteenth.
- the cathode of SD1 is connected to the anode of the second Schottky diode SD2, and the thirty-ninth resistor
- the first end of the R39 and the first end of the fifteenth capacitor C15 are connected to the cathode of the second Schottky diode SD2, the second end of the thirty-ninth resistor R39 and the first end of the fortieth resistor R40 and
- the collector of the three NPN transistor N3 is connected to the fourth
- the gate of the NMOS transistor Q4 and the gate of the fifth NMOS transistor Q5, the second end of the fortieth resistor R40 and the second end of the fifteenth capacitor C15 are connected to the ground, and the source of the fourth NMOS transistor Q4 is connected.
- An anode of a Schottky diode SD1 is also connected to the seventh leg 5A-3 and the eighth leg 5A-4 of the battery connector J1, fourth
- the drain of the NMOS transistor Q4 is connected to the drain of the fifth NMOS transistor Q5, the source of the fifth NMOS transistor Q5 is connected to the communication interface 20 of the electronic device 3, and the emitter of the third NPN transistor N3 is connected to the third Schottky diode.
- the anode of the SD3, the cathode of the third Schottky diode SD3 is grounded.
- the main controller U6 may specifically be a single chip microcomputer of the type PIC12LF1501, PIC12F1501, PIC16LF1503, PIC16F1503, PIC16LF1507, PIC16F1507, PIC16LF1508, PIC16F1508, PIC16LF1509 or PIC16F1509.
- the charging control module 2 described above simultaneously introduces DC power from the power adapter 1 through the communication interface 20 of the electronic device 3 to charge the battery 31.
- the main controller U6 outputs a control signal through the fifth input/output pin RA4 to control the fourth NMOS transistor Q4 and The fifth NMOS transistor Q5 is turned on, and controls the third NPN transistor N3 to be turned off by its tenth input/output pin RC3, thereby charging the battery 31 by introducing a direct current from the communication interface 10 of the adapter 1 through the data line, because the battery 31 itself
- the direct current is obtained from the power adapter 100 through the communication interface 2 of the electronic device 3, so that the introduction of the direct current by the charging control module 2 can further increase the charging current to the battery 31, thereby achieving rapid charging of the battery 31;
- the main controller U6 outputs a low level through the fifth input/output pin RA4 to control the fourth NMOS transistor Q4 and the fifth NMOS transistor Q5 to be turned off, and through the ten
- the main controller U6 performs data communication with the electronic device through the fourth input/output pin RA3 and the eleventh input/output pin RC4.
- the voltage of the battery 31 may be specifically controlled by the main controller U6.
- the power information is transmitted to the electronic device (such as a mobile phone), and the main controller U6 can also determine whether the battery 31 completes the fast charging process according to the voltage of the battery 31, and if so, can feedback the fast charge off command to inform the electronic device to charge the mode. Switching from the fast charging mode to the normal charging mode; in the process of charging the battery 31 by the power adapter 1, if the power adapter 1 and the battery 31 are suddenly disconnected, the main controller U6 detects the battery 31 through the battery connector J1.
- the voltage and feedback charge termination command informs the electronic device 3 to close the communication interface 20 to terminate the charging process of the battery 31; in addition, if the electronic device 3 can detect the temperature of the battery 31, the main controller U6 will be notified when the temperature is abnormal.
- the four NMOS transistors Q4 and the fifth NMOS transistor Q5 are turned off to stop the rapid charging of the battery 31, while the electronic device 3 will charge the charging mode quickly. Charging mode is switched to the normal charging mode.
- the charging control module 2 introduces direct current from the power adapter 1 to charge the battery 31, if the power supply line VBUS and the ground GND of the communication interface 10 of the power adapter 1 are respectively The ground line GND of the communication interface 20 of the electronic device 3 is connected to the power line VBUS (ie, the power line VBUS and the ground line GND of the communication interface 10 of the power adapter 1 are respectively connected to the ground of the charge control module 2 and the source of the fifth NMOS transistor Q5.
- the charging control module 2 may further include a sixth NMOS transistor Q6, a seventh NMOS transistor Q7, and a forty-first resistor R41, and the source connection of the sixth NMOS transistor Q6.
- the source of the fifth NMOS transistor Q5, the sixth NMOS transistor The drain of Q6 is connected to the drain of the seventh NMOS transistor Q7, the source of the seventh NMOS transistor Q7 is connected to the collector of the third NPN transistor N3, the gate of the sixth NMOS transistor Q6 and the gate of the seventh NMOS transistor Q7. Connected to the first end of the forty-first resistor R41, the second end of the forty-first resistor R41 is grounded.
- the second end of the forty-first resistor R41 is connected to the direct current from the ground to drive the sixth NMOS transistor Q6 and the seventh NMOS transistor Q7 to be turned off, thereby causing the direct current entering the charging control module 2 from the ground.
- a loop cannot be formed to protect the components in the charge control module 2 from damage.
- the embodiment of the present invention uses a power adapter including a power module, a main control module, a potential adjustment module, a current detection module, a voltage detection module, and an output switch module to charge the power adapter after power-on or reset.
- a power adapter including a power module, a main control module, a potential adjustment module, a current detection module, a voltage detection module, and an output switch module to charge the power adapter after power-on or reset.
- the power adapter performs fast charge inquiry communication with the electronic device, after the electronic device issues a quick charge instruction command to the power adapter.
- the power adapter adjusts the output voltage according to the battery voltage information fed back by the electronic device, and when the output voltage meets the fast charging voltage condition preset by the electronic device, the power adapter adjusts the output current and the output voltage according to the fast charging mode to perform the battery on the battery. Charging, thus achieving the purpose of quickly charging the battery to shorten the charging time.
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Abstract
Description
Claims (10)
- 一种电源适配器,所述电源适配器通过其通信接口与电子设备的通信接口连接,并对所述电子设备中的电池进行充电;所述电源适配器包括EMI滤波电路、高压整流滤波电路、隔离变压器、输出滤波电路以及电压跟踪与控制电路;其特征在于,所述电源适配器还包括电源模块、主控模块、电位调整模块、电流检测模块、电压检测模块以及输出开关模块;所述电源模块的输入端连接所述隔离变压器的次级端,所述主控模块的电源端、所述电位调整模块的电源端以及所述电流检测模块的电源端共接于所述电源模块的输出端,所述主控模块的高电位端和所述电位调整模块的高电位端均连接所述输出滤波电路的正输出端,所述电位调整模块的电位调节端连接所述电压跟踪与控制电路,所述电流检测模块的直流输入端连接所述输出滤波电路的正输出端,所述电流检测模块的检流反馈端连接所述主控模块的电流检测端,所述主控模块的时钟输出端和数据输出端连接所述电位调整模块的时钟输入端和数据输入端,所述电压检测模块的第一检测端和第二检测端分别连接所述电流检测模块的直流输出端和所述输出滤波电路的负输出端,所述电压检测模块的第一输出端和第二输出端分别连接所述主控模块的第一电压检测端和第二电压检测端,所述输出开关模块的输入端连接所述电流检测模块的直流输出端,所述输出开关模块的输出端连接所述电压检测模块的第三检测端,所述输出开关模块的接地端连接所述输出滤波电路的负输出端,所述输出开关模块的受控端和电源端分别连接所述主控模块的开关控制端和所述隔离变压器的次级端,所述输出滤波电路的输出负端、所述输出开关模块的输出端、所述主控模块的第一通信端和第二通信端均连接所述电源适配器的通信接口。当所述电源适配器在上电或复位后对所述电池进行充电时,所述主控模块控制所述输出开关模块关闭所述电源适配器的直流电输出,所述电压检测模块对所述电源适配器的输出电压进行检测并反馈电压检测信号至所述主控模块,所述主控模块根据所述电压检测信号判断所述电源适配器的输出电压是否大于电压阈值,是,则所述主控模块继续对所述电源适配器的输出电压进行判断,否,则所述主控模块控制所述输出开关模块打开所述电源适配器的直流电输出,并通过所述电位调整模块驱动所述电压跟踪与控制电路将所述隔离变压器的输出电压设定为常规输出电压,所述电流检测模块对所述电源适配器的输出电流进行检测并反馈电流检测信号至所述主控模块,当所述主控模块根据所述电流检测信号判定所述电源适配器的输出电流在预设时间间隔内处于常规电流区间时,所述主控模块与所述电子设备进行快充询问通信,在所述电子设备向所述主控模块发出快充指示命令后,所述主控模块根据所述电子设备所反馈的电池电压信息通过所述电位调整模块驱动所述电压跟踪与控制电路对所述隔离变压器的输出电压进行调整,并在所述电源适配器的输出电压符合所述电子设备所预设的快充电压条件时,所述主控模块通过所述电位调整模块驱动所述电压跟踪与控制电路调整所述隔离变压器的输出电压以使所述电源适配器按照快充电流值和快充电压值输出直流电。
- 如权利要求1所述的电源适配器,其特征在于,所述电源模块包括:第一电容、稳压芯片、第二电容、第一电感、第二电感、第一二极管、第二二极管、第三电容、第一电阻以及第二电阻;所述第一电容的第一端与所述稳压芯片的输入电源引脚和使能引脚的共接点为所述电源模块的输入端,所述第一电容的第二端与所述稳压芯片的地引脚共接于地,所述稳压芯片的开关引脚与所述第二电容的第一端共接于所述第一电感的第一端,所述稳压芯片的内部开关引脚与所述第二电容的第二端共接于所述第一二极管的阴极,所述稳压芯片的反馈电压引脚与所述第一电阻的第一端及所述第二电阻的第一端连接,所述第一电感的第二端与所述第二二极管的阴极共接于所述第二电感的第一端,所述第二电感的第二端与所述第一二极管的阳极、所述第一电阻的第二端及所述第三电容的第一端共接所形成的共接点为所述电源模块的输出端,所述第二二极管的阳极与所述第二电阻的第二端及所述第三电容的第二端共接于地。
- 如权利要求1所述的电源适配器,其特征在于,所述主控模块包括:主控芯片、第三电阻、参考电压芯片、第四电阻、第五电阻、第四电容、第六电阻、第七电阻、第一NMOS管、第八电阻、第九电阻、第十电阻、第十一电阻、第十二电阻、第十三电阻以及第十四电阻;所述主控芯片的电源脚为所述主控模块的电源端,所述主控芯片的地脚接地,所述主控芯片的第一输入输出脚空接,所述第三电阻的第一端连接所述主控芯片的电源脚,所述第三电阻的第二端与所述第四电阻的第一端共接于所述参考电压芯片的正极,所述参考电压芯片的负极接地,所述参考电压芯片U3的空接脚空接,所述第四电阻的第二端连接所述主控芯片的第二输入输出脚,所述主控芯片的第三输入输出脚为所述主控模块的电流检测端,所述主控芯片的第四输入输出脚连接所述第五电阻的第一端,所述第五电阻的第二端与所述第四电的第一端共接于所述主控芯片的电源脚,所述第四电容的第二端接地,所述主控芯片的第五输入输出脚为所述主控模块的开关控制端,所述主控芯片的第六输入输出脚连接所述第六电阻的第一端,所述第六电阻的第二端与所述第一NMOS管的栅极共接于所述第七电阻的第一端,所述第七电阻的第二端与所述第一NMOS管的源极共接于地,所述第一 NMOS管的漏极连接所述第八电阻的第一端,所述第八电阻的第二端为所述主控模块的高电位端,所述主控芯片的第七输入输出脚和第八输入输出脚分别为所述主控模块的时钟输出端和数据输出端,所述主控芯片的第十输入输出脚和第九输入输出脚分别为所述主控模块的第一电压检测端和第二电压检测端,所述主控芯片的第十一输入输出脚与所述第十二输入输出脚分别连接所述第九电阻的第一端和所述第十电阻的第一端,所述第十一电阻的第一端和所述第十二电阻的第一端分别所述连接第九电阻的第二端和所述第十电阻的第二端,所述第十一电阻的第二端和所述第十二电阻的第二端共接于地,所述第十三电阻的第一端和所述第十四电阻的第一端分别连接所述第九电阻的第二端和所述第十电阻的第二端,所述第十三电阻的第二端和所述第十四电阻的第二端共接于所述主控芯片的电源脚,所述第九电阻的第二端和所述第十电阻的第二端分别为所述主控模块的第一通信端和第二通信端。
- 如权利要求1所述的电源适配器,其特征在于,所述电位调整模块包括:第十五电阻、第十六电阻、数字电位器、第十七电阻、第十八电阻、第五电容、第六电容以及第十九电阻;所述第十五电阻的第一端与所述第十六电阻的第一端、所述数字电位器的电源脚及所述第五电容的第一端的共接点为所述电位调整模块的电源端,所述第五电容的第二端与所述第六电容的第一端、所述数字电位器的地脚以及所述第十七电阻的第一端共接于地,所述第六电容的第二端连接所述数字电位器的电源脚,所述第十五电阻的第二端与所述数字电位器的串行数据脚的共接点为所述电位调整模块的数据输入端,所述第十六电阻的第二端与所述数字电位器的时钟输入脚的共接点为所述电位调整模块的时钟输入端,所述数字电位器的地址零脚接地,所述数字电位器的第一电位接线脚与所述第十八电阻的第一端共接于所述第十七电阻的第二端,所述第十八电阻的第二端与所述数字电位器的第二电位接线脚共接于所述第十九电阻的第一端,所述第十九电阻的第二端为所述电位调整模块的高电位端,所述数字电位器的电位抽头脚为所述电位调整模块的电位调节端。
- 如权利要求1所述的电源适配器,其特征在于,所述电流检测模块包括:第二十电阻、第二十一电阻、第二十二电阻、第七电容、第八电容、检流芯片、第二十三电阻、第十电容、第十电容以及第二十四电阻;所述第二十电阻的第一端和第二端分别为所述电流检测模块的直流输入端和直流输出端,所述第二十一电阻的第一端和所述第二十二电阻的第一端分别连接所述第二十电阻的第一端和第二端,所述第二十一电阻的第二端与所述第七电容的第一端共接于所述检流芯片的输入正脚,所述第二十二电阻的第二端与所述第八电容的第一端共接于所述检流芯片的输入负脚,所述检流芯片的电源脚与所述第九电容的第一端的共接点为所述电流检测模块的电源端,所述检流芯片的空接脚空接,所述检流芯片的输出脚连接所述第二十三电阻的第一端,所述第二十三电阻的第二端为所述电流检测模块的检流反馈端,所述第十电容的第一端与所述第二十四电阻的第一端共接于所述第二十三电阻的第二端,所述第七电容的第二端与所述第八电容的第二端、所述第九电容的第二端、所述第十电容的第二端、所述第二十四电阻的第二端、所述检流芯片的地脚、所述第一基准电压脚及所述第二基准电压脚共接于地。
- 如权利要求1所述的电源适配器,其特征在于,所述电压检测模块包括:第二十五电阻、第二十六电阻、第十一电容、第十二电容、第二十七电阻以及第二十八电阻;所述第二十五电阻的第一端为所述电压检测模块的第一检测端,所述第二十五电阻的第二端与所述第二十六电阻的第一端及所述第十一电容的第一端的共接点为所述电压检测模块的第二输出端,所述第二十六电阻的第二端为所述电压检测模块的第二检测端,所述第十一电容的第二端与所述第十二电容的第一端及所述第二十七电阻的第一端共接于所述第二十六电阻的第二端,所述第十二电容的第二端与所述第二十七电阻的第二端及所述第二十八电阻的第一端的共接点为所述电压检测模块的第一输出端,所述第二十八电阻的第二端为所述电压检测模块的第三检测端。
- 如权利要求1所述的电源适配器,其特征在于,所述输出开关模块包括:第二十九电阻、第三十电阻、第十三电容、第三十一电阻、第一 NPN型三极管、第三十二电阻、第二NPN型三极管、第三二极管、稳压二极管、第三十三电阻、第三十四电阻、第三十五电阻、第二NMOS管以及第三NMOS管;所述第二十九电阻的第一端为所述输出开关模块的受控端,所述第二十九电阻的第二端与所述第三十电阻的第一端共接于所述第一NPN型三极管的基极,所述第十三电容的第一端与所述第三十一电阻的第一端及所述第三十二电阻的第一端共接于所述第三二极管的阴极,所述第三二极管的阳极为所述输出开关模块的电源端,所述第三十一电阻的第二端与所述第二NPN型三极管的基极共接于所述第一NPN型三极管的集电极,所述第三十二电阻的第二端与所述稳压二极管的阴极以及所述第三十三电阻的第一端共接于所述第二NPN型三极管的集电极,所述第三十电阻的第二端与所述第十三电容的第二端、所述第一NPN型三极管的发射极、所述第二NPN型三极管的发射极以及所述稳压二极管的阳极共接于地,所述第三十三电阻的第二端与所述第三十四电阻的第一端、所述第三十五电阻的第一端、所述第二NMOS管的栅极以及所述第三NMOS管的栅极共接,所述第三十四电阻的第二端为所述输出开关模块的接地端,所述第二NMOS管的漏极为所述输出开关模块的输入端,所述第二NMOS管的源极与所述第三十五电阻的第二端共接于所述第三NMOS管的源极,所述第三NMOS管的漏极为所述输出开关模块的输出端。
- 一种电子设备充电装置,其特征在于,所述电子设备充电装置包括如权利要求1至7所述的电源适配器和充电控制模块;所述电源适配器通过其通信接口与电子设备的通信接口连接,并对所述电子设备中的电池进行充电;所述充电控制模块内置于所述电子设备,并通过所述电子设备的通信接口与所述电源适配器连接;当所述电源适配器在上电或复位后对所述电池进行充电时,所述主控模块控制所述输出开关模块关闭所述电源适配器的直流电输出,所述电压检测模块对所述电源适配器的输出电压进行检测并反馈电压检测信号至所述主控模块,所述主控模块根据所述电压检测信号判断所述电源适配器的输出电压是否大于电压阈值,是,则所述主控模块继续对所述电源适配器的输出电压进行判断,否,则所述主控模块控制所述输出开关模块打开所述电源适配器的直流电输出,并通过所述电位调整模块驱动所述电压跟踪与控制电路将所述隔离变压器的输出电压设定为常规输出电压,所述电流检测模块对所述电源适配器的输出电流进行检测并反馈电流检测信号至所述主控模块,当所述主控模块根据所述电流检测信号判定所述电源适配器的输出电流在预设时间间隔内处于常规电流区间时,所述主控模块与所述充电控制模块进行快充询问通信,在所述充电控制模块向所述主控模块发出快充指示命令后,所述主控模块根据所述充电控制模块所反馈的电池电压信息通过所述电位调整模块驱动所述电压跟踪与控制电路对所述隔离变压器的输出电压进行调整,并在所述电源适配器的输出电压符合所述充电控制模块所预设的快充电压条件时,所述主控模块通过所述电位调整模块驱动所述电压跟踪与控制电路调整所述隔离变压器的输出电压以使所述电源适配器按照快充电流值和快充电压值输出直流电,所述充电控制模块同时通过所述电子设备的通信接口从所述电源适配器引入直流电对所述电池进行充电。
- 如权利要求8所述的电子设备充电装置,其特征在于,所述充电控制模块包括:电池连接器、主控制器、第十三电容、第三十六电阻、第三十七电阻、第十四电容、第一肖特基二极管、第二肖特基二极管、第十五电容、第三十八电阻、第三十九电阻、第四十电阻、第三 NPN型三极管、第四NMOS管以及第五NMOS管;所述电池连接器连接所述电池的电极,所述电池连接器的第一脚与第二脚共接于地,所述电池连接器的第一接地脚和第二接地脚共接于地,所述主控制器的第一输入输出脚与所述电池连接器的第七脚和第八脚连接,所述主控制器的第二输入输出脚、第七输入输出脚、第八输入输出脚及第九输入输出脚分别与所述电池连接器的第六脚、第五脚、第四脚及第三脚连接,所述主控制器的模拟地脚和地脚均接地,所述主控制器的第一空接脚和第二空接脚均空接,所述主控制器的电源脚与所述第十三电容的第一端均与所述电池连接器的第七脚和第八脚共接,所述主控制器的第四输入输出脚和所述第十一输入输出脚与电子设备进行数据通信,所述第三十六电阻连接于所述主控制器的第四输入输出脚与电源脚之间,所述主控制器的第六输入输出脚和第十二输入输出脚分别连接所述适配器中的主控模块的第一通信端和第二通信端,所述第三十七电阻的第一端与所述第三十八电阻的第一端共接于所述主控制器的第十输入输出端,所述第三十七电阻的第二端连接所述主控制器的电源脚,所述第三十八电阻的第二端连接所述第三NPN型三极管的基极,所述主控制器的第五输入输出端连接所述第十四电容的第一端,所述第十四电容的第二端与所述第一肖特基二极管的阴极共接于所述第二肖特基二极管的阳极,所述第三十九电阻的第一端与所述第十五电容的第一端共接于所述第二肖特基二极管的阴极,所述第三十九电阻的第二端与所述第四十电阻的第一端及所述第三NPN型三极管的集电极均连接所述第四 NMOS管的栅极和所述第五NMOS管的栅极,所述第四十电阻的第二端与所述第十五电容的第二端共接于地,所述第四NMOS管的源极连接所述第一肖特基二极管的阳极,且还与所述电池连接器的第七脚和第八脚连接,所述第四NMOS管的漏极连接所述第五 NMOS管的漏极,所述第五NMOS管的源极连接所述电子设备的通信接口,所述第三NPN型三极管的发射极连接所述第三肖特基二极管的阳极,所述第三肖特基二极管的阴极接地。
- 如权利要求9所述的电子设备充电装置,其特征在于,所述充电控制模块还包括第六NMOS管、第七NMOS管及第四十一电阻;所述第六NMOS管的源极连接所述第五NMOS管的源极,所述第六 NMOS管的漏极连接所述第七NMOS管的漏极,所述第七NMOS管的源极连接所述第三NPN型三极管的集电极,所述第六NMOS管的栅极与所述第七NMOS管的栅极共接于所述第四十一电阻的第一端,所述第四十一电阻的第二端接地。
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KR20180049245A (ko) | 2018-05-10 |
AU2014381131B2 (en) | 2018-04-19 |
MY192951A (en) | 2022-09-19 |
US20170250557A1 (en) | 2017-08-31 |
CN103762702B (zh) | 2015-12-16 |
US20160380462A1 (en) | 2016-12-29 |
US10826307B2 (en) | 2020-11-03 |
US10224725B2 (en) | 2019-03-05 |
KR101855793B1 (ko) | 2018-05-10 |
JP2018093721A (ja) | 2018-06-14 |
EP3101766A1 (en) | 2016-12-07 |
SG11201606226SA (en) | 2016-09-29 |
JP6239777B2 (ja) | 2017-11-29 |
JP2018050459A (ja) | 2018-03-29 |
KR20160135709A (ko) | 2016-11-28 |
JP6404502B2 (ja) | 2018-10-10 |
EP3101766B1 (en) | 2020-06-17 |
EP3101766A4 (en) | 2017-12-27 |
JP6273066B1 (ja) | 2018-01-31 |
JP2017507636A (ja) | 2017-03-16 |
US9893540B2 (en) | 2018-02-13 |
US20180131207A1 (en) | 2018-05-10 |
AU2014381131A1 (en) | 2016-09-01 |
KR101974861B1 (ko) | 2019-05-03 |
CN103762702A (zh) | 2014-04-30 |
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