Switching arrangement

A motorized assembly comprises first and second bridge circuits across which respective drive motors are connected. At least one auxiliary motor or actuator is connected between one arm of the first bridge circuit and one arm of the second bridge circuit and electronic control means are arranged to...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	PETER BRERETON
Format:	Patent
Sprache:	eng
Schlagworte:	CHAIRS FOR DENTISTRY CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRICITY ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL FUNERAL DEVICES GENERATION HUMAN NECESSITIES HYGIENE MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES MEDICAL OR VETERINARY SCIENCE OPERATING TABLES OR CHAIRS PERFORMING OPERATIONS TRANSPORT OR ACCOMODATION FOR PATIENTS TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	A motorized assembly comprises first and second bridge circuits across which respective drive motors are connected. At least one auxiliary motor or actuator is connected between one arm of the first bridge circuit and one arm of the second bridge circuit and electronic control means are arranged to control the operation the drive motors and the or each auxiliary motor or actuator by operating electronic switches of the bridge circuits and an electronic switch connected in series with the or each auxiliary motor or actuator. Such an arrangement obviates the requirement for independent control circuitry for controlling the operation of the or each auxiliary motor or actuator, resulting in a reduction in the overall cost of the motorized assembly.