Patent ID: 7301361
Filing Date: 2007-11-27
Classification: G01R

Abstract:
1. A logic circuit for board power-supply evaluation comprising: an operation simulation circuit that simulates an operation of a logic device so that a utilization rate is variable at an arbitrary frequency by use of a predetermined circuit in all available logic elements of the logic device that is a rewritable semiconductor integrated circuit device loaded on a printed circuit board of an electronic apparatus and used for incorporating a function of the electronic apparatus; an operation judgement circuit that judges normality/abnormality of operation of the operation simulation circuit; a utilization control circuit that controls the utilization rate of the logic device by controlling execution of an operation of the operation simulation circuit based on a judgement result of the operation judgement circuit and sets a utilization rate when the operation simulation circuit is instructed to stop the operation; and a utilization output circuit that outputs to outside the judgement result of the operation judgement circuit and the utilization rate set by the utilization control circuit.