POWER SUPPLY

• US 20090027039A1
• Filed: 12/07/2007
• Published: 01/29/2009
• Est. Priority Date: 07/23/2007
• Status: Active Grant

• Current Assignee: Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. (Hon Hai Precision Industry Co., Ltd.), Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. (Hon Hai Precision Industry Co., Ltd.), Hon Hai Precision Industry Co., Ltd.
• Inventors: ZHANG, JUN, ZHANG, JUN-WEI, CHUANG, TSUNG-JEN, WONG, SHIH-FANG
• Granted Patent: US 7,714,568 B2
• Time in Patent Office: Days
• US Class Current: 324/119
• CPC Class Codes: G01R 15/125 for digital multimeters
• CPC Class Codes: G01R 31/2808 Holding, conveying or contacting devices, e.g. test adapters, edge connectors, extender boards probe, multiprobe, probe manipulator or probe fixture G01R1/067
• CPC Class Codes: G01R 31/40 Testing power supplies testing photovoltaic devices H02S50/10

Abstract

A power supply is for receiving an AC voltage and outputting a DC voltage and an output current to an electronic device. The power supply includes an input module, an output module, a measuring interface, a measuring interface, and a switch module. The input module is for receiving the AC voltage. The output module is for outputting the DC voltage and the output current to the electronic device. The measuring interface is for electrically contacting with a part of the electronic device. The measuring module is for measuring the DC voltage, the output current, and a voltage and a current of the part of the electronic device. The switch module is for choosing one of the output module and the measuring interface to be electrically connected to the measuring module.

Claims

1. A power supply for receiving an AC voltage and outputting a DC voltage and an output current to an electronic device, the power supply comprising:

an input module for receiving the AC voltage;

an output module for outputting the DC voltage and the output current to the electronic device;

a measuring interface for electrically contacting with a part of the electronic device;

a measuring module for measuring the DC voltage, the output current, and a voltage and a current of the part of the electronic device; and

a switch module for choosing one of the output module and the measuring interface to be electrically connected to the measuring module.

2. The power supply according to claim 1, wherein the switch module comprises a first relay for allowing the measuring module to measure the DC voltage or the voltage of the part of the electronic device.

3. The power supply according to claim 2, wherein the switch module comprises a second relay for allowing the measuring module to measure the output current or the current of the part of the electronic device.

4. The power supply according to claim 3, wherein the switch module comprises a controller electrically connected to the first relay via a first resistor and electrically connected to the second relay via a second resistor.

5. The power supply according to claim 4, wherein the first relay comprises a double pole double throw switch and a coil, and the double pole double throw switch is for allowing the measuring module to measure the DC voltage or the voltage of the part of the electronic device, and the coil is controlled by the controller to change states of the double pole double throw switch.

6. The power supply according to claim 5, wherein the double pole double throw switch comprises two normally closed contacts, two normally open contacts, and two common contacts, and the normally closed contacts are electrically connected to the output module, and the normally open contacts are electrically connected to the measuring interface, and the common contacts are electrically connected to the measuring module.

7. The power supply according to claim 6, wherein the measuring interface comprises a voltage measuring tool electrically connected to the normally open contacts, for electrically contacting with the part of the electronic device.

8. The power supply according to claim 5, wherein one end of the coil is for receiving a voltage, and the other end of the coil is electrically connected to the first resistor.

9. The power supply according to claim 4, wherein the second relay comprises a double pole double throw switch and a coil, and the double pole double throw switch is for allowing the measuring module to measure the output current or the current of the part of the electronic device, and the coil is controlled by the controller to change states of the double pole double throw switch.

10. The power supply according to claim 9, wherein the double pole double throw switch comprises two normally closed contacts, two normally open contacts, and two common contacts, and the normally closed contacts are electrically connected to the output module, and the normally open contacts are electrically connected to the measuring interface, and the common contacts are electrically connected to the measuring module.

11. The power supply according to claim 10, wherein the measuring interface comprises a current measuring tool electrically connected to the normally open contacts, for electrically contacting with the part of the electronic device.

12. The power supply according to claim 9, wherein one end of the coil is for receiving a voltage, and the other end of the coil is electrically connected to the second resistor.

13. The power supply according to claim 4, wherein the controller comprises a first momentary on-off switch and a second momentary on-off switch, and one contact of the first momentary on-off switch is electrically connected to the first resistor, and the other contact of the first momentary on-off switch is connected to ground, and one contact of the second momentary on-off switch is electrically connected to the second resistor, and the other contact of the second momentary on-off switch is connected to ground.

14. The power supply according to claim 1, further comprising a display module for displaying the DC voltage, the output current, and the voltage and the current of the part of the electronic device.