DC-DC CONVERTER

摘要

A DC-DC converter having a high conversion efficiency and a stable output voltage is disclosed. The converter includes feedback type voltage converting circuitry for converting a DC input voltage to provide an output as the output of the DC-DC converter. An output-voltage control circuit including a constant current supply is coupled to the output of the voltage converting circuitry. A voltage pick-up is connected to the output of the constant current supply. A feedback circuit is provided for feeding back the voltage sensed by the voltage pick-up to the feedback input end of the feedback type voltage converting circuitry.