| 摘要 |
PROBLEM TO BE SOLVED: To provide a DC-DC converter capable of stably outputting an output voltage even when a variation occurs in an input voltage in switching a control circuit to be operated to a PWM signal control circuit.SOLUTION: The DC-DC converter includes: a voltage converter that outputs an output voltage for driving a load by inputting an input voltage; a control circuit that drives the voltage converter when the load is a light load; and a PWM signal generation circuit that generates a PWM signal and drives the voltage converter with the PWM signal when the load is a heavy load. The DC-DC converter makes the duty of the PWM signal track the input voltage. |
