Power supply device having overcurrent protection function and method for controlling the same

Abstract

By using a plurality of diodes and resistors, an overcurrent protector is implemented in a power supply device that supplies drive power to a peripheral device. The overcurrent protector blocks drive power from a power supply source from being supplied to the peripheral device when an overcurrent is applied from the power supply device to the peripheral device. The diodes and resistors are incorporated into the power supply device to form the circuit thereof. Since the power supply device is not added with a separate circuit for preventing an overcurrent from being applied to the peripheral device, there is no increase in the cost due to additional parts used for implementing the separate circuit. Since a smaller number of parts are used to implement the overcurrent protector, it is easy to design the device, while preventing a decrease in the reliability due to errors in the additional parts.

Dependencies are inferred from the claim text.