US 12,189,367 B2
Apparatus and method for generating excitation signal for resolver
Yun Ho Choi, Yongin-si (KR); Hyung Min Park, Yongin-si (KR); Joo Won Park, Yongin-si (KR); Yeon Ho Kim, Yongin-si (KR); Won Hee Jo, Yongin-si (KR); Tae Hwan Kang, Yongin-si (KR); and Beom Cheol Cho, Yongin-si (KR)
Assigned to Hyundai Mobis Co., Ltd., Seoul (KR)
Filed by HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed on Dec. 27, 2022, as Appl. No. 18/089,172.
Claims priority of application No. 10-2022-0108270 (KR), filed on Aug. 29, 2022.
Prior Publication US 2024/0069524 A1, Feb. 29, 2024
Int. Cl. G05B 19/4155 (2006.01)
CPC G05B 19/4155 (2013.01) [G05B 2219/37473 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus for excitation signal generation for a resolver, the apparatus comprising:
a sine wave generator configured to generate a sine wave based on a square wave;
an amplifier configured to amplify the sine wave;
a differential signal generator configured to convert, into a differential signal, the amplified sine wave;
a driver configured to input the differential signal to a coil; and
a processor configured to generate an excitation signal by increasing a voltage of the sine wave from a start voltage to a target voltage through at least one of the sine wave generator and the amplifier based on a transient current that flows into the coil in a transient response interval.