Full wave motor control circuit
US4390824A · kind A · utility
3Cited by
12References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 12, 1981 |
| Grant date | Jun 28, 1983 |
| Priority date | — |
| Expiry date | Jun 12, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S388/919
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A full wave motor control circuit is provided which utilizes a phase fired SCR to control the flow of current through the motor windings. Just before the end of each cycle, the charging capacitor which is connected across the gate and cathode of the SCR is discharged and the effective holding current level of the SCR is raised to insure SCR turn off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.