Patent ID: 7302596
Filing Date: 2007-11-27
Classification: G06F

Abstract:
1. A circuit for updating a power supply specification of a microprocessor and disposed on a computer motherboard, said circuit comprising: a microprocessor for outputting a power request signal and a program data signal, wherein said program data signal is a program data signal of the power supply specification of said microprocessor; a programmable memory IC connected to said microprocessor for receiving said power request signal and said program data signal and executing said program data signal to output a working voltage control signal; a PWM control unit connected to said programmable memory IC for receiving said working voltage control signal to output a PWM signal; and a drive unit connected to said PWM control unit and at least a power switch for receiving said PWM signal to drive said power switch to perform switching actions and provide a required power for said microprocessor via said power switch.