Patent ID: 9698697
Date: 2017-07-04
CPC Classifications: H02M,Y02B

Claim:
1. A power supply device comprising: a storage storing a first drooping characteristic of a rated output current value, and a second drooping characteristic of an allowable current value that is greater than the rated output current value; an output current detector configured to detect a load current value; a controller configured to select a drooping characteristic stored in the storage in accordance with the load current value detected by the output current detector and a mask condition; and a transformer including a first coil and a second coil and configured to perform conversion of a voltage, wherein the first coil is connected to a switching element, the second coil is connected to a rectifier element and an output choke coil, the output choke coil has a magnetic bias gap, the rated output current value is a rated output current value of the output choke coil, and the allowable current value is a current value enlarged from the rated output current value by the magnetic bias gap.