Metal halide lamp driving circuit

The invention provides a metal halide lamp high-frequency driving method referring to a metal halide lamp driving circuit. The driving circuit comprises a high-frequency square-wave voltage source, a high-frequency ballasting inductor, a capacitor and a metal halide lamp. When the metal halide lamp driving circuit is started, a resonance circuit is formed by the high-frequency ballasting inductor and the capacitor, and a high voltage is generated across the two ends of the capacitor so that metal halide in the metal halide lamp is electrically discharged and gasified to ignite the metal halide lamp. After the metal halide lamp is ignited, the voltage across the two ends of the metal halide lamp is reduced, the metal halide lamp enters a breakover and illumination state, voltage division is carried out on the high-frequency square-wave voltage source by the high-frequency ballasting inductor and ballasting is carried out on the metal halide lamp so that the tube voltage drop and the current of the metal halide