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US 8,634,179 B2Granted
Hot surface re-ignition controller
OwnerPeter Rubinshteininventor
Life of this patent
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Abstract
A hot surface re-ignition controller for use with a transformer for powering a hot surface igniter in a gas appliance. The design includes flame detection circuitry for interfacing with flame detecting electrodes and is completely implemented in analog circuitry to provide reliable operation in harsh environments.
Claims14
A hot surface re-ignition controller for controlling the switching of an AC mains supply to a hot surface igniter in response to a flame sensing signal from the igniter comprising:
- a power supply block;
- a flame detector block;
- a signal amplifier and delay block;
- and
- a triac driver block, wherein the signal amplifier and delay block comprises a transistor performing the function of amplification, time delay and level shifting.
2 more elements
Dependencies are inferred from the claim text.