Abstract: In one embodiment, a load detection circuit may include a first circuit configured to control a first transistor to form a load current to a load in a first operating mode of the load detection circuit, a second circuit configured to be coupled to form at least a portion of the load current in a second operating mode of the load detection circuit, and a detection circuit configured to detect the control electrode of the first transistor having a value that is less than a threshold value of the first transistor.

Abstract: In one embodiment, a load detection circuit may include a first circuit configured to control a first transistor to form a load current to a load in a first operating mode of the load detection circuit, a second circuit configured to be coupled to form at least a portion of the load current in a second operating mode of the load detection circuit, and a detection circuit configured to detect the control electrode of the first transistor having a value that is less than a threshold value of the first transistor.

Abstract: A circuit for determining a direction of rotation of an electric motor, the motor having asymmetry and/or eccentricity in a profile of back electromotive force as a function of angular position of a rotor with respect to a stator, the circuit receiving a signal representing the BEMF, and use the corresponding asymmetry and/or eccentricity in the signal to derive the direction of rotation. The signal representing the back emf can be generated by a control circuit. The control circuit can have a feedback loop regulator to generate a control signal (TL or TR) to control a current drive circuit (11,12) to control an amplitude of current (iw) in the windings, the feedback loop regulator being arranged to compare the amplitude of the current (iw) in the windings with a reference value (iset), and use the control signal to provide the signal representing the back electromotive force.

Abstract: A circuit for determining a direction of rotation of an electric motor, the motor having asymmetry and/or eccentricity in a profile of back electromotive force as a function of angular position of a rotor with respect to a stator, the circuit receiving a signal representing the BEMF, and use the corresponding asymmetry and/or eccentricity in the signal to derive the direction of rotation. The signal representing the back emf can be generated by a control circuit. The control circuit can have a feedback loop regulator to generate a control signal (TL or TR) to control a current drive circuit (11,12) to control an amplitude of current (iw) in the windings, the feedback loop regulator being arranged to compare the amplitude of the current (iw) in the windings with a reference value (iset), and use the control signal to provide the signal representing the back electromotive force.