Passive control network for remote control of load output level

Details Passive control network for remote control of load output level Passive control network for remote control of load output level

1981-02-17

1983-06-14

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Current and/or voltage regulation

315224, 315276, 315DIG4, 323301, 323353, 331177R, G05F 100

Patent

active

043885667

ABSTRACT:
A passive control network for connection between a pair of load output level setting terminals, as on a ballast for a dimmable fluorescent lamp in a lighting system, to provide a required variable impedance, where the magnitude of the impedance establishes the load output level. The passive control network includes an isolation transformer for coupling a periodic waveform at the load input terminals to the variable impedance component, the magnitude of which impedance is reflected through the transformer to provide the load level-setting impedance.

REFERENCES:
patent: 3249892 (1966-05-01), Van Geen
patent: 3419753 (1968-12-01), Schultz et al.
patent: 3619713 (1971-11-01), Biega et al.
patent: 4057751 (1977-11-01), Bonsignore et al.

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