CONTROL CIRCUITS FOR SUPPLYING CURRENT TO ACTUATE SOLENOIDS

Disclosed are exemplary embodiments of control circuits for supplying current to actuate solenoids, such as refrigerant valves in HVAC systems, other valves, "solenoid" style contactors, other coil driven actuators, etc. In exemplary embodiments, a control circuit for supplying current to...

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Bibliographische Detailangaben
1. Verfasser:	ARENSMEIER, Jeffrey N
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BASIC ELECTRIC ELEMENTS BASIC ELECTRONIC CIRCUITRY BLASTING COCKS DEVICES FOR VENTING OR AERATING ELECTRICITY ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INDUCTANCES LIGHTING MAGNETS MECHANICAL ENGINEERING PULSE TECHNIQUE SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TAPS THERMAL INSULATION IN GENERAL TRANSFORMERS VALVES WEAPONS
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Beschreibung
Zusammenfassung:	Disclosed are exemplary embodiments of control circuits for supplying current to actuate solenoids, such as refrigerant valves in HVAC systems, other valves, "solenoid" style contactors, other coil driven actuators, etc. In exemplary embodiments, a control circuit for supplying current to actuate a solenoid comprises a solenoid coil and a switch coupled with the solenoid coil. The control circuit may be configured such that the solenoid coil is operable as a load coil and a switch mode supply coil and such that the switch is configured to operate a load and power supply of the control circuit. Additionally, or alternatively, the control circuit may include a current monitoring shunt and a flyback diode that are located in a circulating current loop defined by and/or including the solenoid coil, the current monitoring shunt, and the flyback diode.