Gas stove Ignition: How ?

Hi,
Have a new gas stove for the kitchen with the pilotless ignition system
Just wondering how it works.
You first put it on the first detent,and then there's a repetitive "clicking" sound until it ignites.
What is happening, actually ?
Is it a piezo type of ignition, where a piezo element is being deformed, somehow, to generate a voltage and a subsequent spark ?
What's the clicking noise ?
Is electric involved somehow in the process ?
Bob
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Google search: http://www.appliance411.com/faq/gas_range_ignition_systems.shtml

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Its got a high voltage transformer somewhere in the stove. When you turn to the detent it turns the gas on but also makes a switch that sends power to the igniter transformer
For piezo ignition you must repeatedly push or turn a handle....this pulls back and releases a hammer or an object that strikes the piezo...which you kind of knew that...
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