公开(公告)号：US20220123660A1

公开(公告)日：2022-04-21

申请号：US17447057

申请日：2021-09-07

Applicant: Delta Electronics (Shanghai) Co.,Ltd.

Inventor： Jinfa ZHANG ,  Kai DONG ,  Changyun XIAO ,  Jinhao GAN ,  Yong HUANG ,  Junlai HUANG ,  Zhongwei KE

IPC: H02M3/335 ,  H02M1/42 ,  H02M1/32 ,  H02M3/00 ,  H05K7/20

Abstract: The present application provides a power supply system for supplying power to network device, comprising power supply module, housing, and stereoscopic accommodating space therebetween. The power supply module without a fan comprises: a primary circuit comprising at least one primary switch and configured to receive AC input voltage and convert the AC input voltage into a first voltage; a transformer comprising primary and secondary windings and configured to convert the first voltage into a second voltage, the primary winding is coupled to the primary circuit; and a secondary circuit comprising at least one secondary switch and configured to convert the second voltage into a DC output voltage for the network device, the secondary circuit is coupled to the secondary winding, the secondary switch adopts SMT package, and power density of the power supply module is 60 W/inch3 or more. The stereoscopic accommodating space is filled with liquid coolant for cooling.

公开(公告)号：US20210313901A1

公开(公告)日：2021-10-07

申请号：US17189278

申请日：2021-03-02

Applicant: Delta Electronics (Shanghai) Co., Ltd.

Inventor： Junlai HUANG ,  Youzhun CAI ,  Lingfeng JIANG ,  Junhao JI

IPC: H02M7/219 ,  H02M1/08 ,  H03K17/687 ,  H03K17/14 ,  H03K17/081

Abstract: The present disclosure discloses a composite switching circuit, including a plurality of first semiconductor devices connected in series; and at least one second semiconductor device each connected in parallel to one of the plurality of first semiconductor devices. The composite switching circuit is connected to an input source. The second semiconductor device is turned off during a preset period to transfer a current flowing through the second semiconductor device to the first semiconductor devices connected in parallel to the second semiconductor device.