USB COMPONENT TESTER

• US 20100141266A1
• Filed: 12/22/2008
• Published: 06/10/2010
• Est. Priority Date: 12/04/2008
• 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: GONG, LIAN-ZHONG, CUI, ZHEN-SHAN
• Granted Patent: US 8,067,944 B2
• Time in Patent Office: Days
• US Class Current: 324/538
• CPC Class Codes: G01R 31/30 Marginal testing, e.g. by varying supply voltage testing computers during standby operation or idle time G06F11/22

Abstract

A universal serial bus (USB) component tester for testing a USB component that has a plug and a USB port includes a connector, a USB port, and a first indicator. The connector includes a first power pin, a first data pin connected to the first power pin, a second data pin, and a first ground pin connected to the second data pin and also connected to the first data pin via a first resistor. The USB port includes a power terminal connected to a power supply, a first data terminal, a second data terminal, and a grounded ground terminal, and the first data terminal is connected to the second data terminal via a second resistor. The first indicator includes a first terminal connected to the first data terminal via the second resistor, and a second terminal connected to the second data terminal.

Claims

1. A universal serial bus (USB) component tester for testing a USB component that has a plug and a USB port, the USB component tester comprising:

a connector configured for connecting to the plug, and comprising a first power pin, a first data pin connected to the first power pin, a second data pin, and a first ground pin connected to the second data pin and also connected to the first data pin via a first resistor;

a USB port configured for connecting to the USB port of the USB component, and comprising a power terminal connected to a power supply, a first data terminal, a second data terminal, and a grounded ground terminal, the first data terminal being connected to the second data terminal via a second resistor;

a first indicator configured for indicating whether the USB component works in a normal work state, and comprising a first terminal connected to the first data terminal via the second resistor, and a second terminal connected to the second data terminal.

2. The USB component tester of claim 1, further comprising a third resistor and a second indicator, wherein a first terminal of the third resistor is connected to the power supply and the power terminal, a second terminal of the third resistor is connected to a first terminal of the second indicator, a second terminal of the second indicator is connected to the ground terminal and grounded.

3. The USB component tester of claim 2, wherein the third resistor is a resistor of about 200 ohms, the second indicator is a light emitting diode (LED), the first terminal of the second indicator is the anode of the LED, and the second terminal of the second indicator is the cathode of the LED.

4. The USB component tester of claim 3, wherein the second indicator is a buzzer.

5. The USB component tester of claim 1, further comprising a first diode, wherein the first diode comprises an anode connected to the first power pin of the connector, and a cathode connected to the first data pin of the connector and the second data pin and the first ground pin of the connector via the first resistor.

6. The USB component tester of claim 5, further comprising a second diode, wherein the connector further comprises a second power pin, a third data pin, a fourth data pin, and a second ground pin, the second power pin is connected to an anode of the second diode, a cathode of the second diode is connected to the third data pin of the connector and the fourth data pin and the second ground pin of the connector via a resistor.

7. The USB component tester of claim 6, wherein the resistor is a resistor of about 2000 ohms.

8. The USB component tester of claim 1, wherein the first indicator is an LED, the first terminal of the first indicator is an anode of the LED, and the second terminal of the first indicator is a cathode of the LED.

9. The USB component tester of claim 1, wherein the first indicator is a buzzer.

10. The USB component tester of claim 1, wherein the first resistor is a resistor of about 2000 ohms, and the second resistor is a resistor of about 200 ohms.

11. The USB component tester of claim 1, wherein the power supply is a 5V direct current power supply.

12. The USB component tester of claim 1, further comprising a power switch, wherein the power switch is connected between the power terminal and the power supply.

13. The USB component tester of claim 1, further comprising a case, wherein the first indicator, the USB port and the connector are installed on the case.