Patent ID: 7619427

Claim:
A temperature control device used for an electronic device testing apparatus for conducting a test on an electronic device to be tested by sending a test pattern to the electronic device to be tested and detecting a response pattern thereto, comprising: a temperature adjusting device provided to contact with said electronic device to be tested; and a power control means for controlling power consumption of said temperature adjusting device, so that total power of a power consumption of said electronic device by said test pattern and a power consumption of said temperature adjusting device becomes a constant value, wherein said power control means comprises a power consumption pattern prediction portion for predicting a power consumption pattern in said electronic device to be tested from a test pattern transmitted to said electronic device; a power consumption canceling pattern generation portion for generating a power consumption canceling pattern for canceling a power consumption pattern in said electronic device to be tested; and a power consumption canceling pattern transmission portion for sending said power consumption canceling pattern to said temperature adjusting device.