Method and apparatus for saving energy

Details Method and apparatus for saving energy Method and apparatus for saving energy

1976-12-20

1979-05-22

Chatmon, Jr., Saxfield

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Silicon controlled rectifier ignition

315200A, 315306, 315307, 315308, 315291, 315311, 315224, 315241P, H05B 3702, H05B 3904, H05B 4136

Patent

active

041561660

ABSTRACT:
A method and apparatus for regulating the output flux generated by a lamp with the degeneration of the voltage from a power source such as a battery. The regulating circuit maintains a constant luminous flux output from a lamp over a substantial range of voltages by switching the voltage to the lamp on and off at a preselected and controlled duty cycle. The duty cycle varies with the variations in the lamp electrical operating parameter provided to the regulating circuit. The regulating circuit permits the useful life of a power source to be substantially increased before requiring replacement.

REFERENCES:
patent: 3471747 (1969-10-01), Gershen
patent: 3648106 (1972-03-01), Engel et al.
patent: 3670202 (1972-06-01), Paine et al.
patent: 3821601 (1974-06-01), Kappenhagen et al.
patent: 3890537 (1975-06-01), Park et al.
patent: 3967159 (1976-06-01), Dendy et al.
patent: 3989976 (1976-11-01), Tabor
patent: 3999100 (1976-12-01), Dendy et al.

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