Title:
レゾルバ補正装置及び半導体装置
Document Type and Number:
Japanese Patent JP6689712
Kind Code:
B2
Abstract:
To correct a frequency deviation generated in an input signal to an analog filter according to the rotation of a rotor in a resolver, a resolver correction device includes a phase shifter which shifts the phase of a first phase signal of the resolver, with respect to the signals at least having two phases and more, detected by the resolver. The phase-shifted first phase signal and a second phase signal are added, as a phase modulation signal with the excitation signal modulated by a rotation angle of the rotor in the resolver. A phase difference correction signal is generated based on a phase difference between the phase modulation signal of the resolver and the excitation signal. The adjusting amount of the phase shifter is calculated based on the phase difference correction signal, in which the phase shifter adjusts a phase shift amount according to the adjusting amount.
Inventors:
Yoshifumi Ikenaga
Application Number:
JP2016162742A
Publication Date:
April 28, 2020
Filing Date:
August 23, 2016
Export Citation:
Assignee:
Renesas Electronics Corporation
International Classes:
G01D5/20
Domestic Patent References:
| JP2013200141A | ||||
| JP2010002373A | ||||
| JP2005147729A | ||||
| JP2004012387A | ||||
| JP2010022150A |
Foreign References:
| US20060241790 |
Attorney, Agent or Firm:
Ken Ieiri