Title:
半導体集積回路装置、自動車、およびモータ駆動装置
Document Type and Number:
Japanese Patent JP5736483
Kind Code:
B2
Abstract:
A motor speed determining circuit determining a rotation speed of a motor is provided and a processing of generating motor driving waveform is switched in accordance with the rotation speed of the motor. A resolver signal outputted from a resolver 2 is converted to a digital value by an R/D converter 3, and inputted to a computing circuit of resolver value correction 5 via an R/D conversion interface 4. A current value of a motor M is converted to a digital value by an A/D convertor 8. The computing circuit of resolver value correction 5 computes a resolver correction value of the inputted digital signal and calculates positional data from a corrected resolver value. The computing circuit of motor control computes a current instruction value from a motor current value subjected to digital conversion by the A/D converter 8 and a motor current instruction value etc., and a motor waveform output circuit 7 generates a motor driving waveform from the current instruction value and outputs the same to a power module PM.
Inventors:
Watanabe Hisaaki
Application Number:
JP2014061139A
Publication Date:
June 17, 2015
Filing Date:
March 25, 2014
Export Citation:
Assignee:
Renesas Electronics Corporation
International Classes:
G01D5/20; H02P29/00; H02P29/40
Domestic Patent References:
| JP2004152441A | ||||
| JP2004045286A | ||||
| JP9084208A | ||||
| JP2007020383A | ||||
| JP2008278652A |
Attorney, Agent or Firm:
Yamato Tsutsui