Abstract: A controller in a power conversion unit increases or decreases, based on a detected voltage value of a first flying capacitor, a value of a gate voltage to be applied to a gate terminal of a target switch to be controlled selectively from first to fourth switches in a first capacitor circuit to cause conduction between a drain terminal and a source terminal of the target switch, or changes a gradient of the gate voltage value. The controller increases or decreases, based on a detected voltage value of the second flying capacitor, a value of a gate voltage to be applied to a gate terminal of a target switch to be controlled selectively from fifth to eighth switches in a second capacitor circuit to cause conduction between a drain terminal and a source terminal of the target switch, or changes a gradient of the gate voltage value.

Abstract: A programmable logic array PLA is operated under control of a single-phase clock in which a fixed current does not flow in one of an AND array and an OR array in the PLA while the other of the AND array and the OR array is precharged. Thus, this PLA can realize low consumption of electric power and a high clock frequency, thereby enabling high-speed operation.