Testing System and Method for Testing Charging Circuit

• US 20110040505A1
• Filed: 04/27/2010
• Published: 02/17/2011
• Est. Priority Date: 08/17/2009
• Status: Abandoned Application

• Current Assignee: Wistron Corporation
• Original Assignee: Wistron Corporation
• Inventors: Lee, Chun-Ta, Yeh, Tzu-Heng, Wu, Te-Lung
• Application Number:
  US12/767,806
• Publication Number:
  US 20110040505A1
• Time in Patent Office: Days
• US Class Current: 702/63
• CPC Class Codes: G01R 31/40 Testing power supplies testing photovoltaic devices H02S50/10

Abstract

A testing system for testing a charging circuit includes a setting unit, a virtual battery, and a control device. The setting unit is utilized for setting a charging configuration of the charging circuit according to a battery status message, to make the charging circuit to output a charging power accordingly. The virtual battery includes a battery status generating unit for generating the battery status message according to a first control signal, and a load unit for generating a load for the charging circuit according to a second control signal, so as to receive the charging power outputted from the charging circuit, and recording variation of the charging power. The control device is utilized for generating the first control signal and the second control signal, and storing information recorded by the load unit as a digital data for evaluate the charging circuit.

Claims

1. A testing system for testing a charging circuit, comprising:

a setting unit, for setting a charging configuration of the charging circuit according to a battery status message, and allowing the charging circuit to output a charging power according to the charging configuration, when the charging circuit receives an external power supply;

a virtual battery, comprising;

a battery status generating unit, for generating the battery status message to the setting unit according to a first control signal, in order to set the charging configuration of the charging circuit by the setting unit; and

a load unit, for generating a load for the charging circuit according to a second control signal, for receiving the charging power outputted from the charging circuit and recording variation of the charging power; and

a control device, for generating the first control signal and the second control signal, and storing the variation of the charging power, recorded by the load unit, as digital data for evaluating the charging circuit.

2. The testing system of claim 1, wherein the setting unit is a firmware embedded in a portable electronic device.

3. The testing system of claim 1, wherein the setting unit is a virtual firmware controlled by the control device, for setting the charging configuration of the charging circuit according to commands of the control device.

4. The testing system of claim 1, wherein the control device generates the second control signal according to load variation of a rechargeable battery when the rechargeable battery is charged from empty to full power, so as to correlate variation of the load generated by the load unit to the load variation of the rechargeable battery when the rechargeable battery is charged from empty to full power.

5. The testing system of claim 4, wherein the rechargeable battery is charged from empty to full power by a first duration, the load generated by the load unit according to the second control signal shows the load variation of the rechargeable battery when the rechargeable battery is charged from empty to full power by a second duration, and the second duration is shorter than the first duration.

6. The testing system of claim 1, wherein the control device is a computer system.

7. The testing system of claim 1, wherein the charging circuit is embedded in a portable electronic device.

8. A testing method for testing a charging circuit, comprising:

generating a battery status message when the charging circuit receives an external power supply;

setting a charging configuration of the charging circuit according to the battery status message, to control the charging circuit to output a charging power; and

generating a load for the charging circuit, for receiving the charging power outputted from the charging circuit, and recording variation of the charging power, for evaluating the charging circuit.

9. The testing method of claim 8, wherein the step of generating the load for the charging circuit is generating the load according to load variation of a rechargeable battery when the rechargeable battery is charged from empty to full power, so as to correlate variation of the generated load to the load variation of the rechargeable battery when the rechargeable battery is charged from empty to full power.

10. The testing method of claim 9, wherein the rechargeable battery is charged from empty to full power by a first duration, the generated load shows the load variation of the rechargeable battery when the rechargeable battery is charged from empty to full power by a second duration, and the second duration is shorter than the first duration.

11. The testing method of claim 8, wherein the charging circuit is embedded in a portable electronic device.