POWER FACTOR CORRECTION SWITCHING POWER SUPPLY DEVICE: abstract simplified (18334154)

• This abstract for appeared for patent application number 18334154 Titled 'POWER FACTOR CORRECTION SWITCHING POWER SUPPLY DEVICE'

Simplified Explanation

The abstract describes a power factor correction switching power supply device. It includes a power factor correction circuit connected to an alternating-current input line. There are two half-bridge capacitor circuits, one connected to the AC input line and the other connected to a direct-current output line closer to the load. A common mode choke coil is placed between the first output capacitor and the second half-bridge capacitor circuit. There is also an electric path that connects the midpoint of the first half-bridge capacitor circuit to the midpoint of the second half-bridge capacitor circuit, forming a noise balancing circuit. This circuit helps balance common mode noise by having a different potential than the ground.

Original Abstract Submitted

A power factor correction switching power supply device includes a power factor correction circuit connected to an alternating-current input line, a first half-bridge capacitor circuit connected between lines of the AC input line, a second half-bridge capacitor circuit connected between lines of a direct-current output line that is closer to a load than a first output capacitor, a common mode choke coil disposed between the first output capacitor and the second half-bridge capacitor circuit, and an electric path configured to electrically connect a midpoint of the first half-bridge capacitor circuit and a midpoint of the second half-bridge capacitor circuit to form a noise balancing circuit. The noise balancing circuit has a potential different from a potential of a ground and is configured to balance common mode noise.