US 12,249,928 B2
Power converter, motor driver, and refrigeration cycle applied equipment
Keisuke Uemura, Tokyo (JP); Tomohiro Kutsuki, Tokyo (JP); Haruka Matsuo, Tokyo (JP); Koichi Arisawa, Tokyo (JP); Takaaki Takahara, Tokyo (JP); Kenji Takahashi, Tokyo (JP); and Koyo Matsuzaki, Tokyo (JP)
Assigned to Mitsubishi Electric Corporation, Tokyo (JP)
Appl. No. 18/251,039
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Jan. 6, 2021, PCT No. PCT/JP2021/000192
§ 371(c)(1), (2) Date Apr. 28, 2023,
PCT Pub. No. WO2022/149206, PCT Pub. Date Jul. 14, 2022.
Prior Publication US 2023/0412093 A1, Dec. 21, 2023
Int. Cl. H02M 7/5387 (2007.01); H02M 1/00 (2007.01); H02M 1/14 (2006.01); H02M 1/42 (2007.01)
CPC H02M 7/53873 (2013.01) [H02M 1/0025 (2021.05); H02M 1/007 (2021.05); H02M 1/143 (2013.01); H02M 1/0009 (2021.05); H02M 1/4225 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A power converter comprising:
a converter including at least one first semiconductor switching element and is adapted to rectify a power supply voltage applied from an alternating-current power supply;
a smoothing capacitor adapted to smooth a rectified voltage output from the converter into a direct-current voltage containing a ripple;
an inverter adapted to convert the direct-current voltage smoothed by the smoothing capacitor into an alternating-current voltage to be supplied to a motor; and
a single calculator adapted to perform a control such that a first physical quantity is equal to a second physical quantity, wherein
the first physical quantity represents an operation state of the converter and the second physical quantity represents an operation state of the inverter, wherein
the single calculator is adapted to set a sampling timing for obtaining detection value of the first physical quantity in accordance with a constraint on sampling timing for obtaining detection value of the second physical quantity.