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Patent Searching and Data


Title:
METHOD FOR PWM SWITCHING OF ALTERNATING CURRENT VOLTAGE, AND HOUSEHOLD APPLIANCE IN WHICH METHOD IS EMPLOYED
Document Type and Number:
WIPO Patent Application WO/2024/058456
Kind Code:
A1
Abstract:
A power conversion device according to one embodiment of the present disclosure may comprise an input voltage sensor for sensing input voltage; a first leg having a first top switch and a first bottom switch. A power conversion device according to one embodiment of the present disclosure may comprise a processor, which detects a first predetermined time point at which the input voltage sensed by the input voltage sensor approaches zero from a negative number, so as to control that only the first top switch switches during a first interval at which the input voltage sensed from the first predetermined time point reaches zero. The processor of the power conversion device, according to one embodiment of the present disclosure, detects a second predetermined time point at which the input voltage sensed by the input voltage sensor increases from zero to a positive number, so as to control that only the first bottom switch switches during a second interval from zero until the second predetermined time point.

Inventors:
AHN HYOMIN (KR)
KIM JUNSEOK (KR)
CHO JEHYUNG (KR)
SIN HYOWON (KR)
Application Number:
PCT/KR2023/012510
Publication Date:
March 21, 2024
Filing Date:
August 23, 2023
Export Citation:
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Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
H02M1/38; H02M1/00; H02M1/08; H02M7/5395; H02P27/08
Foreign References:
KR102130591B12020-07-06
KR102102756B12020-04-21
JP2022535514A2022-08-09
CN114826011A2022-07-29
US20120069615A12012-03-22
Attorney, Agent or Firm:
Y.P.LEE, MOCK & PARTNERS (KR)
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