Carrier Corporation

Dan Melanson

Ronie Lavon

William M Glasheen

William Glasheen

An amplifier assembly () includes an amplifier () having an input terminal, an output terminal and a feedback terminal; a first feedback path connecting the output terminal to the feedback terminal; a second feedback path connecting the output terminal to the feedback terminal; a switch () positioned in the second feedback path, the switch () opening or closing in response to a voltage at the output terminal relative to a breakpoint, when the switch () is open, the amplifier assembly () has a first gain and when the switch () is closed, the amplifier assembly () has a second gain; and a thermally variable element () connected to the switch (), the thermally variable element () configured to generate a compensation voltage to maintain the breakpoint in response to varying temperature of the switch ().

Flame scanner having non-linear amplifier with temperature compensation

A flame scanner () includes terminals () for connection to a controller () The flame scanner includes a photodiode () to generate a detection signal; and a signal conditioner () coupled to the photodiode, the signal conditioner to generate an output signal across the terminals, the output signal emulating an output of an ultraviolet tube flame scanner.

Flame scanner with photodiode coupled to a signal conditioner to generate an output signal emulating an output signal of an ultraviolet tube flame scanner

Growing community of inventors

Manchester, NH, United States of America

Dan Melanson