Patent ID: 7124592
Filing Date: 2006-10-24
Classification: F25B,H01S

Abstract:
1. A temperature control circuit for controlling an operating temperature of a semiconductor device, comprising: a thermoelectric controller for mounting said semiconductor device, said thermoelectric controller having two terminals and heating up or cooling down said semiconductor device by flowing a current between said two terminals of said thermoelectric controller; a temperature-sensing device for monitoring a temperature of said semiconductor device; and a thermoelectric controller driver circuit including, a current driver for controlling a direction of said current flowing between said two terminals of said thermoelectric device, a voltage controller for controlling a DC voltage provided to said current driver, and a temperature controller, by comparing said temperature of said semiconductor device with a target temperature, for outputting a current direction control signal to said current driver to set said direction of said current flowing in said thermoelectric controller, wherein said DC voltage provided to said current driver varies depending on said current flowing in said thermoelectric controller.