US 11,984,803 B2
Charge pump circuit and operating method thereof
Wonsun Hwang, Suwon-si (KR); Byeonghak Jo, Suwon-si (KR); Shinhaeng Heo, Suwon-si (KR); Dongil Kang, Suwon-si (KR); and Hyunjin Yoo, Suwon-si (KR)
Assigned to Samsung Electro-Mechanics Co., Ltd., Suwon-si (KR)
Filed by SAMSUNG ELECTRO-MECHANICS CO., LTD., Suwon-si (KR)
Filed on Dec. 8, 2022, as Appl. No. 18/077,319.
Claims priority of application No. 10-2022-0075759 (KR), filed on Jun. 21, 2022.
Prior Publication US 2023/0412072 A1, Dec. 21, 2023
Int. Cl. H02M 3/07 (2006.01)
CPC H02M 3/07 (2013.01) 15 Claims
OG exemplary drawing
 
1. A charge pump circuit, comprising:
a first switch configured to have a first end connected to an input terminal configured to receive a power voltage input;
a second switch configured to have a first end connected to the input terminal;
a first capacitor configured to have a first end connected to a second end of the first switch;
a second capacitor connected between a second end of the first capacitor and a second end of the second switch;
a third switch connected between the second end of the second switch and a ground;
a fourth switch connected between the first end of the first capacitor and a first output terminal, wherein the first output terminal is configured to output a first output voltage; and
a fifth switch connected between a second output terminal and a node between the first capacitor and the second capacitor, wherein the second output terminal is configured to output a second output voltage.