| 摘要 |
A lamp power electronic ballast circuit, which can be packaged in a small, compact module and is designed for starting and energizing a high intensity discharge lamp with high frequency power. The ballast circuit contains provision for correction of the source input power factor to near unity, greatly reducing ballast losses associated with input power factor, and includes a unique starter circuit using a transformer small in size and low in losses, and producing a pulse of at least 6000 volts with current sufficient to start a metal-halide high intensity discharge lamp.
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