Balboa Instruments, Inc.

Patrick McElroy

A starting circuit for an electric discharge lamp providing an electric current to a lamp having a first and a second filament. The circuit measures a lamp current and a filament temperature and then compares these against a reference voltage. When the lamp current is below a set threshold value, a relay contact disposed between the first and second filament is closed to direct the electric current through the first and second filaments to initiate pre-heating of the lamp. Once the filament temperature exceeds a set threshold, the relay contact is opened and the electric current passes through heated gas inside the lamp.

Starting circuit for electric discharge lamp

System including an electronic ballast for use with a spa

An ozone generator including an electric starting circuit for measuring the temperature of at least one filament and further including a mercury vapor lamp. In one aspect, the oxone generator includes and outlet spout which injects ozone into a body of water. The electric starting circuit accepts voltages from about 100 to 270 volts and frequencies as low as 45 hertz.

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Costa Mesa, CA, United States of America

Patrick McElroy