| 摘要 |
Disclosed herein is a voltage regulated magneto powered capacitive discharge ignition system including a charge capacitor having opposite plates, a magneto including a charge coil having opposite end terminals, and a circuit including a full-wave bridge rectifier having input terminals respectively connected to the end terminals of the charge coil, and having output terminals respectively connected to the plates of the charge capacitor for insuring unidirectional current flow from the charge coil to the charge capacitor. The system also includes a voltage regulator including a triac having a gate, and having first and second anodes respectively connected to the end terminals of the charge coil, and also including a varistor having one terminal connected to one of the end terminals of the charge coil, and having another terminal connected to the triac gate. The varistor is rendered conductive and applies a trigger current pulse to the triac gate in response to voltage developed on the charge capacitor exceeding a predetermined value, whereby the triac is rendered conductive so that the charge coil is shunted by the triac and further charging of the charge capacitor is prevented.
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