ELECTRONIC BALLAST FOR CERAMIC METAL HALIDE LAMP

摘要

PURPOSE: A ceramic metal halide lamp stabilizer apparatus is provided to prevent the sound resonance of a lamp by supplying constant power to the lamp. CONSTITUTION: An electric wave rectifier(20) converts inputted AC into DC. A power factor compensation part(30) receives the current to supply an input voltage to an inverter. A driver IC(40) outputs a switching driving signal of the inverter. An igniter turns on a CDM lamp. A stabilizer controller controls the operation of the power factor compensation part, the driver IC, and the igniter. [Reference numerals] (10) EMI filter; (20) Electric wave rectifier; (30) Power factor compensation part; (40) Driver IC; (50) Inverter; (60) Igniter; (70) Stabilizer controller; (90) CDM lamp