Patent attributes
A DC-to-DC converter includes a DC-to-DC conversion unit for converting an input voltage into an output voltage by switching operation of the switching element according to a drive signal and supplying the output voltage to a load and a control unit for generating the drive signal. The control unit includes a determination circuit for determining whether the load is in a normal operation state or a standby state, an error amplifier for generating an error signal according to the output voltage, a first drive-signal generator for generating a pulse sequence of pulses each having a pulse width according to the error signal, and a second drive-signal generator for generating a pulse having a pulse width larger than a cycle of repetition of the pulses in the pulse sequence when the voltage according to the output voltage falls below the reference voltage and the load is in the standby state.
