| 摘要 |
The present invention is a gas appliance utilizing a single electrode spark ignition system. The gas appliance comprises two common ground planes, a conductive piece, a spark ignition device, and a P-N junction device. The conductive piece, e.g., a burner, a chassis, or a metal plate adjacent to the burner, is grounded to a first common ground plane. The spark ignition device has an electrode, and it is grounded to a second common ground plane. The spark ignition device is adapted to generate a spark between the electrode and the conductive piece to ignite the fuel. The P-N junction device is adapted to isolate the second common ground plane from the first common ground plane. As a result, the design prevents transient voltage spikes caused by the spark ignition device from interfering with the normal operation of the control circuitry of the gas appliance.
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