US 12,470,150 B2
Converter and converter control method
Soo San Kim, Seoul (KR); and Kwang Soon Jung, Seoul (KR)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Appl. No. 18/037,374
Filed by LG INNOTEK CO., LTD., Seoul (KR)
PCT Filed Nov. 17, 2021, PCT No. PCT/KR2021/016927
§ 371(c)(1), (2) Date May 17, 2023,
PCT Pub. No. WO2022/108340, PCT Pub. Date May 27, 2022.
Claims priority of application No. 10-2020-0153305 (KR), filed on Nov. 17, 2020.
Prior Publication US 2023/0421070 A1, Dec. 28, 2023
Int. Cl. H02M 3/335 (2006.01); H02M 1/00 (2006.01); H02M 7/5387 (2007.01)
CPC H02M 3/33592 (2013.01) [H02M 3/33573 (2021.05); H02M 1/0048 (2021.05); H02M 7/53878 (2021.05)] 17 Claims
OG exemplary drawing
 
1. A converter comprising:
a switching unit comprising a plurality of switches;
a transformer connected to the switching unit;
a rectifier switch connected to the transformer;
a sensor connected to a primary coil of the transformer, a secondary coil of the transformer, or the rectifier switch; and
a controller configured to control converting operation of the converter,
wherein the rectifier switch comprises a first rectifier switch and a second rectifier switch connected in parallel to each other,
wherein the secondary coil of the transformer comprises a first coil connected in series with the first rectifier switch and a second coil connected in series with the second rectifier switch,
wherein the sensor measures voltage of voltage of the first coil and voltage of the second coil,
wherein the sensor comprises:
a first differential amplifier amplifying a voltage difference between both ends of the first coil and applying the amplified voltage to the controller; and
a second differential amplifier for amplifying a voltage difference between both ends of the second coil and applying the amplified voltage to the controller.