Electricity: motive power systems – Synchronous motor systems – Hysteresis or reluctance motor systems
Patent
1985-10-18
1987-07-21
Salce, Patrick R.
Electricity: motive power systems
Synchronous motor systems
Hysteresis or reluctance motor systems
363 20, H02P 736
Patent
active
046820930
ABSTRACT:
In a power supply system, an inductance L is connected between a rail at a voltage V.sub.1 and a rail at earth through a switch S. When the switch is opened, a current i.sub.2 flowing from the inductance L is directed to a third rail through a diode D, voltage on the third rail rising to V.sub.2. The system may function as a dc to dc converter with an output voltage between the V.sub.1 rail and V.sub.2 rail equal to V.sub.2 -V.sub.1. The system may alternatively be used in, for example, a reluctance motor drive, in which case a further inductance with associated switch and diode is included in the circuit in inverse configuration to prevent excessive voltage rise on the third rail.
REFERENCES:
patent: 3953785 (1976-04-01), Bell
patent: 4155112 (1979-05-01), Miller et al.
patent: 4163278 (1979-07-01), Onoue et al.
patent: 4455596 (1984-06-01), Baker
patent: 4556827 (1985-12-01), Erdman
2410/80-Irish Application (Jeumont-Schneider).
Advances in Switched Mode Power Conversion-Middlebrook and Cuk; Tesla 1983, vols. 1, 2 and 3, contents and forewords.
Principles of Inverter Circuits; Bedord & Hoft; Wiley, pp. 336-339.
IEEE/IAS Annual Conference, Toronto, Oct. 1985; Bass et al.: Development of a Unipolar Converter for Variable Reluctance Motor Drive.
IEEE/IAS Annual Conference, Toronto, Oct. 1985; Harris et al.; A Review of the Integral Horsepower Switched Reluctance Drive.
Unitrode Switching Regulated Power Supply Design Seminar Manual, Unitrode Corporation, 1985; L. H. Dixon, Jr.: Switching Power Supply Topology Review.
Byrne John V.
Egan Michael
Kenneally Patrick
McMullin Francis
Murphy John
Kollmorgen Technologies Corporation
Salce Patrick R.
Sterrett Jeffrey
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