| 摘要 |
A spark igniter and re-igniter for gas-fired appliances is provided with a normally-closed switch associated with the gas valve and connected across the capacitor of an RC net. This provides a leakage path for the main discharge capacitor when the gas supply is turned off, and prevents damage to the input transformer in the event of a short circuit in the switch by leaving the high-value resistor of the RC net in circuit.
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