US 12,341,423 B2
Switching circuit and power supply device
Yuan Yao, Ningde (CN); Zhimin Dan, Ningde (CN); Meng Li, Ningde (CN); and Yu Yan, Ningde (CN)
Assigned to CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed by CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed on May 30, 2023, as Appl. No. 18/325,966.
Application 18/325,966 is a continuation of application No. PCT/CN2021/120619, filed on Sep. 26, 2021.
Prior Publication US 2023/0308013 A1, Sep. 28, 2023
Int. Cl. H02M 1/44 (2007.01); B60L 53/31 (2019.01); H02J 7/00 (2006.01); H02M 3/335 (2006.01)
CPC H02M 1/44 (2013.01) [B60L 53/31 (2019.02); H02J 7/007 (2013.01); H02M 3/33573 (2021.05); H02M 3/33576 (2013.01); H02J 2207/20 (2020.01)] 11 Claims
OG exemplary drawing
 
1. A switching circuit, comprising:
at least two switching transistors;
a metal unit comprising metal sub-units in one-to-one correspondence with the switching transistors, wherein each of the metal sub-units is provided at one of the switching transistors; and
a branch comprising a capacitor, the capacitor being configured to discharge radiated interference;
wherein:
the metal unit is electrically connected to a ground through the switching transistors and the branch in sequence; and
the branch comprises sub-legs in one-to-one correspondence with the metal sub-units, wherein each of the sub-legs is electrically connected between one of the metal sub-units and the ground.