Title:
ロータ位置検出システム
Document Type and Number:
Japanese Patent JP6727173
Kind Code:
B2
Abstract:
A rotor position detection system according to one embodiment includes a H bridge circuit, a current detection circuit, a time measurement circuit, a zero cross determination circuit, and a rotor position calculation circuit. The zero cross determination circuit calculates a zero cross position of the induced voltage of the motor based on a difference time calculated by the time measurement circuit. The rotor position calculation circuit calculates a rotor position of the motor based on the zero cross position of the induced voltage.
Inventors:
Yasushi Ito
Application Number:
JP2017158223A
Publication Date:
July 22, 2020
Filing Date:
August 18, 2017
Export Citation:
Assignee:
Toshiba Corporation
Toshiba Electronic Devices & Storage Corporation
Toshiba Electronic Devices & Storage Corporation
International Classes:
H02P6/18; H02P8/02
Domestic Patent References:
| JP2012050257A | ||||
| JP2006230120A | ||||
| JP2006121858A | ||||
| JP5207799A | ||||
| JP5331370B2 |
Attorney, Agent or Firm:
Masanori Inoue