Motor control apparatus
US4719400A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1987 |
| Grant date | Jan 12, 1988 |
| Priority date | — |
| Expiry date | Jan 29, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/385
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor control apparatus including an arithmetic circuit (113) for calculating a current command, a holding circuit (118) for holding the current command, a pulse-width modulating circuit (114) for pulse-width modulating an output signal from the holding circuit (118) and provided with a dead zone with respect to the output signal, and a transistorized amplifier/converter circuit (117) for controlling a motor by the pulse-width modulated signal. The arithmetic circuit (113) adds a compensating signal, to the current command to compensate for motor control losses due to the dead zone, and delivers the result to the holding circuit (118).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.