Patent ID: 6397338
Filing Date: 2002-05-28
Classification: G06F,H03L,Y02D

Abstract:
An electronic apparatus including:electronic circuitry that consumes power output from a power supply as the electronic circuitry operates, but that ceases to operate at least during assertion of a power recycle signal; a power management system for use with said electronic circuitry that draws power from said power supply, the power management system including a power recycle circuit that comprises: circuitry to receive a power good signal from the power supply, wherein the power good signal includes a disable pulse of at least minimum duration indicating that power provided by the power supply is not acceptable for consumption by the power drawing electronic circuitry; detection circuitry to detect, independent of whether a clock signal is received or not received, the disable pulse and to assert a pulse sense signal in response thereto; and a power recycle signal generation circuit to assert a power recycle signal in response to the pulse sense signal, the power recycle signal generation circuit including a power recycle signal hold circuit that forces the recycle signal to be asserted for at least a predetermined time period.