Positive starting and operating apparatus for high-pressure...

Details Positive starting and operating apparatus for high-pressure... Positive starting and operating apparatus for high-pressure...

H - Electricity

05

B

315/59

H05B 41/16 (2006.01) H05B 41/04 (2006.01)

Patent

CA 1064100

ABSTRACT OF THE DISCLOSURE Lighting apparatus provides high-voltage pulses for starting high-pressure sodium discharge lamps and there- after provides operating ballasting. The apparatus uses a voltage amplification circuit the output of which is applied across a ballast reactor which is connected thereto in autotransformer relationship. This provides a sufficiently high-voltage starting pulse, even when ballast reactors of low open circuit voltage are used, to initiate the operation of high-pressure sodium discharge lamps.

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