Energy controller for conversion from a direct current source to a variable frequency load
US4258303A · kind A · utility
1Cited by
5References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 10, 1979 |
| Grant date | Mar 24, 1981 |
| Priority date | — |
| Expiry date | Sep 10, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P27/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A turn off circuit for a multiphase motor is provided comprising a DC powered system including a three element core having a central core element and an inner and outer core element coupled thereto. A series of capacitors are connected to an outer core element to discharge simultaneously and turn off positively and negatively biased SCRs which sequentially fire and produce a suitable pulse width and frequency to the motor. A control system is provided to produce a variable pulse frequency and pulse width to a power circuit which sequentially fires and admits battery power to the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.