Power supply regenerating circuit
US4928052A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 1988 |
| Grant date | May 22, 1990 |
| Priority date | — |
| Expiry date | Nov 9, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P23/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power supply regenerating circuit according to the present invention is used in an inductor motor drive circuit which performs motor drive control and regenerative control. The induction motor drive circuit has a parallel circuit including a reverse connected diode (D10) and a resistor (R1) connected between a circuit (C2), which rectifies and then smoothes the induced electromotive force of an induction motor (M) during deceleration, and a bridge circuit (Tr1-Tr6) which effects a conversion into AC power. Regenerative power blocked by the diode (D10) is supplied to the bridge circuit (Tr1-Tr6) as a current limited by the resistor (R1), and the regenerative power is regenerated only during a predetermined interval of a three-phase period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.