Flame sensor and method of using same
AssigneeInternational Thermal Investments Ltd.
InventorNader Kiarostami
Life of this patent
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Abstract
A circuit for a flame sensor and a method for sensing the presence of a flame in a burner. The signal from the sensor is passed to an amplifier located adjacent to the sensor and amplified without having a sensor signal contaminated with common mode radiation. The pulsed signal is passed from the amplifier to a rectifier. The pulsed signal of the amplifier is a fully amplified signal.
Claims2
A method of sensing a flame using an amplifier circuit comprising passing a pulsed signal received from a photodiode to an amplifier and passing the pulsed signal from said amplifier directly to a rectifier, each of said pulsed signals from said amplifier being fully amplified signals.
Circuit for a flame sensor comprising a photodiode for sensing flame flicker and generating a pulsed signal, an amplifier for receiving said pulsed signal and for amplifying said pulsed signal and a rectifier for receiving said pulsed signal directly from said amplifier, said pulsed signal from said amplifier being a fully amplified signal.
Dependencies are inferred from the claim text.