Energy controller for conversion from a direct current source to a variable frequency load
US4214196A · kind A · utility
9Cited by
4References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 14, 1978 |
| Grant date | Jul 22, 1980 |
| Priority date | — |
| Expiry date | Aug 14, 1998 |
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 control core element and an inner and outer core element coupled thereto. A series of capacitors are coupled to the central core winding to produce suitably shaped pulses to turn off positively and negatively biased SCRs which control power switching SCRs. A control system is provided to produce a variable pulse frequency and pulse width to a power circuit which sequentially fires and admits the battery power to the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.