Voltage adjusting circuit

摘要

A voltage adjusting circuit includes a half VCC generator that generates a first voltage of a half VCC level or the like in accordance with a precharge input signal, and voltage compensator coupled respectively to output terminals of the half VCC generator. The voltage compensator compensates for a variation of the first voltage generated due to variations of a power supply voltage and a load. The first voltage is increased by supplying electric charges to the output terminals if the first voltage is less than a predetermined level, and the first voltage is decreased by sending the electric charges of the output terminal to the ground if the first voltage is greater than a predetermined level.