US 11,929,662 B2
Power circuit and control method
Hitoshi Yuuki, Tokyo (JP)
Assigned to Sony Group Corporation, Tokyo (JP)
Appl. No. 17/632,893
Filed by SONY GROUP CORPORATION, Tokyo (JP)
PCT Filed Jul. 7, 2020, PCT No. PCT/JP2020/026503
§ 371(c)(1), (2) Date Feb. 4, 2022,
PCT Pub. No. WO2021/029162, PCT Pub. Date Feb. 18, 2021.
Claims priority of application No. 2019-148633 (JP), filed on Aug. 13, 2019.
Prior Publication US 2022/0271643 A1, Aug. 25, 2022
Int. Cl. H02M 1/00 (2006.01); H02M 1/14 (2006.01); H02M 3/335 (2006.01)
CPC H02M 1/0038 (2021.05) [H02M 1/14 (2013.01); H02M 3/33571 (2021.05)] 10 Claims
OG exemplary drawing
 
1. A power circuit, comprising: at least
a first power supply unit; and
a second power supply unit,
the first power supply unit including
a first input section,
a first AC voltage generator that generates a first AC voltage on a basis of an input voltage input to the first input section,
a first rectification-and-smoothing section that rectifies and smooths the first AC voltage, and
a first isolation section that includes a capacitor and is provided between the first AC voltage generator and the first rectification-and-smoothing section,
the second power supply unit including
a second input section,
a second AC voltage generator that generates a second AC voltage on a basis of an input voltage input to the second input section,
a second rectification-and-smoothing section that rectifies and smooths the second AC voltage, and
a second isolation section that includes a capacitor and is provided between the second AC voltage generator and the second rectification-and-smoothing section,
the power circuit being configured such that the second AC voltage generator generates the AC voltage of which a phase is obtained by inverting a phase of the AC voltage generated by the first AC voltage generator.