US 11,936,283 B2
Gate driving power source device including shared power source unit
Masatoshi Goto, Shimotsuke (JP); Yuta Nakamura, Utsunomiya (JP); Yoshinori Sagiya, Shimotsuke (JP); Kazunari Kurokawa, Oyama (JP); Shugo Ueno, Utsunomiya (JP); and Shintaro Tai, Utsunomiya (JP)
Assigned to HITACHI ASTEMO, LTD., Hitachinaka (JP)
Filed by Hitachi Astemo, Ltd., Hitachinaka (JP)
Filed on Nov. 17, 2021, as Appl. No. 17/528,731.
Claims priority of application No. 2020-195264 (JP), filed on Nov. 25, 2020.
Prior Publication US 2022/0166305 A1, May 26, 2022
Int. Cl. H02M 1/08 (2006.01); H02M 1/00 (2006.01); H02M 7/537 (2006.01); H02P 27/06 (2006.01)
CPC H02M 1/08 (2013.01) [H02M 1/0006 (2021.05); H02M 1/008 (2021.05); H02M 7/537 (2013.01); H02P 27/06 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A gate driving power source device in which a plurality of upper arms and a plurality of lower arms are provided in each of a plurality of power conversion circuits including one or more multi-phase conversion circuits performing DC/AC power conversion or AC/DC power conversion and which supplies a DC power source to a plurality of gate drive circuits of each of the upper arms and each of the lower arms, the gate driving power source device comprising:
a shared power source unit that is a first DC power source circuit supplying a first shared DC power source to a gate drive circuit driving any one of a plurality of lower arms of one multi-phase conversion circuit of the multi-phase conversion circuits or any one of a plurality of upper arms of the one multi-phase conversion circuit of the multi-phase conversion circuits and a gate drive circuit driving upper arms or lower arms of power conversion circuits other than the one multi-phase conversion circuit of the multi-phase conversion circuits.