US 12,244,219 B2
Cascade circuit, control method and integrated circuit thereof
Yu Qi, Hangzhou (CN); Wei Chen, Hangzhou (CN); and Chen Zhao, Hangzhou (CN)
Assigned to Silergy Semiconductor Technology (Hangzhou) LTD, Hangzhou (CN)
Filed by Silergy Semiconductor Technology (Hangzhou) LTD, Hangzhou (CN)
Filed on Oct. 19, 2022, as Appl. No. 17/968,946.
Claims priority of application No. 202111250658.4 (CN), filed on Oct. 26, 2021.
Prior Publication US 2023/0125514 A1, Apr. 27, 2023
Int. Cl. H02M 7/49 (2007.01); H02M 1/00 (2006.01)
CPC H02M 1/007 (2021.05) [H02M 1/0043 (2021.05); H02M 7/49 (2013.01); H02M 1/0003 (2021.05)] 20 Claims
OG exemplary drawing
 
1. A cascade circuit, comprising:
a) N power conversion units connected in series between two ports of a power supply, wherein N is a positive integer greater than or equal to 2;
b) a controller connected to one of the N power conversion units, and being configured to send a signal to be transmitted through the connected power conversion unit;
c) wherein each of the power conversion units is configured to send the signal to be transmitted to a next-stage power conversion unit when the each of the power conversion unit shares a reference voltage with the adjacent next-stage power conversion unit; and
d) wherein the signal to be transmitted is controlled to be transmitted from a previous-stage power conversion unit to a next-stage power conversion unit in sequence until the signal to be transmitted is received by all of the N power conversion units.