Conversion device for quick charger and method for realizing charging conversion

• US 10,594,151 B2
• Filed: 12/14/2016
• Issued: 03/17/2020
• Est. Priority Date: 12/14/2016
• Status: Active Grant

• Current Assignee: Shenzhen LVSUN Electronics Technology Co. Ltd.
• Original Assignee: Shenzhen LVSUN Electronics Technology Co. Ltd.
• Inventors: Xu, Jianhua
• Primary Examiner(s): Pacheco, Alexis B
• Application Number:
  US15/378,066
• Publication Number:
  US 20180166889A1
• Time in Patent Office: 1,189 Days
• Field of Search: 320107, 320104, 320105, 320106, 320108, 320109
• CPC Class Codes: G05F 1/56 using semiconductor devices in series with the load as final control devices G05F1/461 takes precedence
• CPC Class Codes: H02J 2207/20 Charging or discharging characterised by the power electronics converter
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/00304 Overcurrent protection
• CPC Class Codes: H02J 7/007 Regulation of charging or discharging current or voltage

Abstract

Disclosed a conversion device for a quick charger, comprising an input end, a voltage regulator module, a recognition module, a control module and an output end, wherein, the voltage regulator module receives a power voltage through the input end to stabilize a voltage, and outputs the power voltage after voltage stabilization to the recognition module and the control module; the control module reads a conversion voltage of the output end, and produces a conversion signal group according to the conversion voltage to output to the recognition module; and the recognition module produces a handshake signal and a voltage recognition signal according to the conversion signal, and outputs through the input end. Through the device and method, equipment that are not quickly charged may also be charged by the quick charger, so that an application scope of the quick charger is expanded.

Claims

1. A conversion device for a quick charger, comprising:

an input end, a voltage regulator module, a recognition module, a control module, and an output end,

wherein the input end is connected with the voltage regulator module and the recognition module respectively;

the voltage regulator module is connected with the recognition module and the control module respectively;

the control module is connected with the output end;

wherein the voltage regulator module receives a power voltage through the input end to stabilize a voltage, and outputs the power voltage after voltage stabilization to the recognition module and the control module;

the control module reads a conversion voltage of the output end, and produces a conversion signal group according to the conversion voltage to output to the recognition module; and

the recognition module produces a handshake signal and a voltage recognition signal according to the conversion signal, and outputs through the input end;

wherein the control module comprises a second control chip, and a storage unit and a control unit configured in the second control chip;

the control module is connected with the output end through a third pin of the second control chip, and is connected with the recognition module through a first pin, a fourth pin and a sixth pin of the second control chip;

wherein the storage unit is configured to store reference range data of the conversion voltage, the control unit is configured to read conversion voltage data of the third pin of the second control chip to match with the reference range data of the storage unit, and the conversion signal group is produced according to a matching result and output through the first pin, the fourth pin and the sixth pin of the second control chip.

2. The conversion device according to claim 1, wherein the output end comprises a first resistor, a second resistor and a third resistor, wherein the third resistor and the first resistor are connected in series, the first resistor is connected with a power supply anode, and the third resistor is connected with a power supply ground wire;

wherein a monitoring point is arranged between the first resistor and the third resistor, one end of the second resistor is connected with the monitoring point, while the other end thereof is connected with the third pin of the second control chip.

3. The conversion device according to claim 1, wherein the recognition module is a resistance bridge circuit, comprising a sixth resistor, a seventh resistor, an eighth resistor and a ninth resistor;

wherein the sixth resistor and the eighth resistor are connected in series, the sixth resistor is connected with the voltage regulator module, and the eighth resistor is connected with the fourth pin of the second control chip;

the seventh resistor and the ninth resistor are connected in series, the seventh resistor is connected with the first pin of the second control chip, and the ninth resistor is connected with the sixth pin of the second control chip; and

a first detection point is arranged between the sixth resistor and the eighth resistor, a second detection point is arranged between the seventh resistor and the ninth resistor, the first detection point is connected to a data line anode of the input end, and the second detection point is connected to a data line cathode of the input end.

4. The conversion device according to claim 1, wherein the voltage regulator module is an LDO voltage regulator circuit, the LDO voltage regulator circuit comprises a first capacitor, a second capacitor and a first control chip;

wherein one end of the first capacitor is connected with the power supply anode of the said input end and an input pin of the first control chip respectively, while the other end thereof is connected with the power supply ground wire; and

one end of the second capacitor is connected with the reference voltage and an output pin of the first control chip, while the other end thereof is connected with the power supply ground wire.

5. The conversion device according to claim 1, wherein the voltage regulator module is an LDO voltage regulator circuit, the LDO voltage regulator circuit comprises a first capacitor, a second capacitor and a first control chip,

wherein one end of the first capacitor is connected with the power supply anode of the said input end and an input pin of the first control chip respectively, while the other end thereof is connected with the power supply ground wire;

and

one end of the second capacitor is connected with the reference voltage and an output pin of the first control chip, while the other end thereof is connected with the power supply ground wire.

6. The conversion device according to claim 2, wherein the voltage regulator module is an LDO voltage regulator circuit, the LDO voltage regulator circuit comprises a first capacitor, a second capacitor and a first control chip,

wherein one end of the first capacitor is connected with the power supply anode of the said input end and an input pin of the first control chip respectively, while the other end thereof is connected with the power supply ground wire;

and

one end of the second capacitor is connected with the reference voltage and an output pin of the first control chip, while the other end thereof is connected with the power supply ground wire.

7. The conversion device according to claim 3, wherein the voltage regulator module is an LDO voltage regulator circuit, the LDO voltage regulator circuit comprises a first capacitor, a second capacitor and a first control chip,

wherein one end of the first capacitor is connected with the power supply anode of the said input end and an input pin of the first control chip respectively, while the other end thereof is connected with the power supply ground wire;

and

one end of the second capacitor is connected with the reference voltage and an output pin of the first control chip, while the other end thereof is connected with the power supply ground wire.

8. The conversion device according to claim 4, further comprising a conversion joint, wherein the conversion joint is divided into a 5V gear converting head, a 9V gear converting head, a 12V gear converting head, a 14.5V gear converting head and a 20V gear converting head;

the conversion joint is connected with the output end, and controls a numerical value of the conversion voltage output by the output end.

9. The conversion device according to claim 5, further comprising a conversion joint, wherein the conversion joint is divided into a 5V gear converting head, a 9V gear converting head, a 12V gear converting head, a 14.5V gear converting head and a 20V gear converting head, the conversion joint is connected with the output end, and controls a numerical value of the conversion voltage output by the output end.

10. The conversion device according to claim 6, further comprising a conversion joint, wherein the conversion joint is divided into a 5V gear converting head, a 9V gear converting head, a 12V gear converting head, a 14.5V gear converting head and a 20V gear converting head, the conversion joint is connected with the output end, and controls a numerical value of the conversion voltage output by the output end.

11. The conversion device according to claim 7, further comprising a conversion joint, wherein the conversion joint is divided into a 5V gear converting head, a 9V gear converting head, a 12V gear converting head, a 14.5V gear converting head and a 20V gear converting head, the conversion joint is connected with the output end, and controls a numerical value of the conversion voltage output by the output end.