Honeywell International Inc.

John Evers

Rick M Solosky

Rolf Lee Strand

Paul B Patton

Jan Vorlicek

Jiri Kastan

Patrick Springman

Yury Millman

Ronald Sorenson

Timothy Mccarthy

A flame detection system is designed to detect leakage in flame sense circuits. The flame detection system includes a flame sensor, an amplifier, a detection circuit, and a microcontroller. Flame sense circuitry use operational amplifiers that needs negative voltage supply for its operation. Negative supply voltage properly measures negative input signals. Once a leakage current in the flame detection system is determined a shutdown signal is provided to shut down a flame sensor when the leakage current condition is determined.

Leakage detection in a flame sense circuit

A system and approach for addressing modules on a platform bus that may incorporate a master module and one or more slave modules. The platform bus may run through sub-base connectors that interlock modules together on a rail. Addressing of the modules may occur automatically and dynamically in that the master module may have a first address by default, and a first slave module adjoining the master module may be assigned a second address. A second slave module adjoining the first slave module, if there is one, may be assigned a third address. Each of the other slave modules, adjoining a preceding slave module assigned an address, may be assigned a next address after an address assigned to a preceding slave module. Addresses may be assigned in a numerical order to each module based on a physical position of the respective module on a rail.

Module auto addressing in platform bus

A system for providing one or more voltages at predetermined magnitudes. The system may be supplied with power having a range of voltage magnitudes without affecting the predetermined magnitudes of the one or more voltages provided by the system and without a need to change circuitry of the system. The system may be connected, for example, from 28 VDC to 250 VAC without affecting the predetermined magnitudes of the output voltage or voltages. This system is protected from a mistaken power hook-up thought to be for 28 VDC but actually being connected to 250 VAC, which could be a disaster for a system not having the present circuitry. The system may be used for supplying power for opto-couplers in relay detection and other applications. The system may incorporate lightning and reverse polarity protection, reference and regulated voltages, an output driver, and input isolation circuitry.

Universal opto-coupled voltage system

Systems, apparatuses and methods for controlling valves through controlled power escalation towards the actuation threshold of the valve. A power signal is applied to a control input of a valve at a level less than a valve switch threshold at which the valve will be actuated. The power to the control input is then progressively increased. The valve is actuated when the power signal eventually reaches the valve switch threshold, thereby actuating the valve using a power signal commensurate with the actual valve switch threshold of the particular valve and its current operating conditions.

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Albany, MN, United States of America

John Evers