Method and circuitry for controlling current reset characteristics of a magnetic amplifier control circuit
US5612862A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 1994 |
| Grant date | Mar 18, 1997 |
| Priority date | — |
| Expiry date | May 6, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S323/901
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Magnetic amplifier post regulator (54) includes magnetic amplifier (42) that has a main magnetic amplifier winding, reset transistor (76), error amplifier (58), and auxiliary magnetic amplifier winding (220). Magnetic amplifier (42) controllably blocks a portion of the input voltage N.sub.s /N.sub.p V.sub.IN from winding (30) of transformer (18) in response to a controlled resetting condition and produces therefrom a magnetic amplifier output voltage (v.sub.2). Auxiliary output circuit (14) uses the magnetic amplifier (42) output voltage (v.sub.2) to produce the desired auxiliary output voltage (V.sub.OS). Reset transistor (76) controls reset current to magnetic amplifier (42) in response to an error signal from error amplifier (58). Error amplifier (58) compares auxiliary output voltage (V.sub.OS) to predetermined reference voltage (66) and generates the error signal from the comparison. Auxiliary magnetic amplifier winding (220) has a predetermined number of turns (N.sub.2) on magnetic amplifier (42) and increases the dynamic range of magnetic amplifier post regulator (54) for controlling reset transistor (76) and auxiliary output circuit (14) so that auxiliary output voltage (V.…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.