Circuit arrangement for operating a 2-phase DC motor

Abstract

The present invention relates to a circuit arrangement for operating a two-phase, preferably brushless, DC motor, wherein the DC motor has a first motor winding and a second motor winding. The circuit arrangement has a first output for supplying the first motor winding, and the first output has two terminals, wherein the first motor winding of the brushless DC motor can be connected between the terminals and energized by the circuit arrangement. Furthermore, the circuit arrangement has a second output for supplying the second motor winding, and the second output has two terminals, wherein the second motor winding of the brushless DC motor can be connected between the terminals and energized by the circuit arrangement.Each terminal has a pair of circuit breakers, each pair consisting of a first circuit breaker through which the respective terminal can be connected to a first pole of a current and / or voltage source with a first potential, and a second circuit breaker, distinct from the first, through which the respective terminal can be connected to a second pole of the current and / or voltage source with a second potential different from the first. Finally, one of the terminals, called the common terminal, is part of both the first and second outputs and has the same pair of circuit breakers, called the common circuit breaker pair.

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