| 摘要 |
An ignition circuit for a discharge lamp comprising a ballast impedance in series with the lamp across the AC supply terminals. A capacitor and an SCR connected in series across the lamp electrodes. A diode connected anti-parallel to the SCR. A zener diode between the SCR anode and gate electrodes. The series circuit, including the ballast impedance, the capacitor, and the SCR and diode connected in anti-parallel, is under critically damped.
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