HPS Starting aid

Details HPS Starting aid HPS Starting aid

1981-11-16

1984-01-17

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Surge generator or inductance in the supply circuit

315290, 315239, H05B 4114

Patent

active

044266030

ABSTRACT:
An HPS starting aid for providing pulses to an HPS lamp via a ballast tap connection, the aid employing a capacitive voltage divider connected to the power distribution line for charging purposes. There is no power resistor so that the pulse width and amplitude is not dependent on voltage amplitude fluctuations of the line voltage. A voltage breakdown device and a timing RC network determine the pulse positioning of the starting pulse. The size of the capacitors in the capacitive voltage divider and the number of turns on the ballast tap winding determine the pulse width and amplitude.

REFERENCES:
patent: 3235769 (1966-02-01), Wattenbach
patent: 4143304 (1979-03-01), Hitchcock et al.

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