Abstract: The present disclosure relates to an EIS measuring device comprising: an electrical energy storage circuit; an electronic circuit coupled to the electrical energy storage circuit and configured to be coupled to a battery whose impedance is to be measured by the EIS measuring device, a characterization circuit configured to measure an alternative current intended to circulate between the battery and the electronic circuit, and a voltage at terminals of the battery; wherein the electronic circuit is alternately configured in a first mode to pull out electrical energy of the battery and storing the electrical energy pulled-out from the battery in the electrical energy storage circuit, and in a second mode to pull out the stored electrical energy from the electrical energy storage circuit and to re-inject the electrical energy pulled-out from the electrical energy storage circuit in the battery.

Abstract: A driving circuit for an electric motor including multiple windings includes a sensing circuit to sense motor winding currents. A motor rotation angle signal is generated from the sensed currents and motor control voltages are generated as a function of the motor rotation angle signal. The motor windings are driven with motor drive voltages obtained by injecting into the motor control voltages injection pulses. The sensed currents include both torque components and injection components. The motor rotation angle signal is generated as a function of the injection components of the sensed currents.

Abstract: A driving circuit for an electric motor including multiple windings includes a sensing circuit to sense motor winding currents. A motor rotation angle signal is generated from the sensed currents and motor control voltages are generated as a function of the motor rotation angle signal. The motor windings are driven with motor drive voltages obtained by injecting into the motor control voltages injection pulses. The sensed currents include both torque components and injection components. The motor rotation angle signal is generated as a function of the injection components of the sensed currents.

Abstract: Systems and methods are disclosed for controlling, diagnosing and prognosing the health of a motorized system. The systems may comprise a diagnostics system, a prognostic system and a controller, wherein the diagnostics system and/or prognostic system employs a neural network, an expert system, and/or a data fusion component in order to assess and/or prognose the health of the motorized system according to one or more attributes associated therewith. The controller may operate the motorized system in accordance with a setpoint and/or a diagnostics signal from the diagnostics system and/or prognostic information.

Abstract: A method and circuit for supplying a variable voltage to an electrical a.c. load (R, L), comprising: a control signal input for receiving a switching control signal to control load output voltage; first and second circuit output terminals (ACL1, ACL2) for connection to the load; first switch means (S1) having an input coupled to the control signal input and having an output coupled between one (ACL1) of the circuit output terminals (ACL1) and a first a.c. line terminal (AC1); second switch means (S2) having an input coupled to the first switch means and having an output coupled between the first and second circuit output terminals (ACL1, ACL2) and coupled to a second a.c. line terminal (AC2); and providing a switching control signal to the control signal input to switch the first and second switch means complementarily. The switch means may each comprise a power transistor (Q1; Q2) and a bridge rectifier (B1; B2).

Abstract: A method and circuit for supplying a variable voltage to an electrical a.c. load (R, L), comprising: a control signal input for receiving a switching control signal to control load output voltage; first and second circuit output terminals (ACL1, ACL2) for connection to the load; first switch means (S1) having an input coupled to the control signal input and having an output coupled between one (ACL1) of the circuit output terminals (ACL1) and a first a.c. line terminal (AC1); second switch means (S2) having an input coupled to the first switch means and having an output coupled between the first and second circuit output terminals (ACL1, ACL2) and coupled to a second a.c. line terminal (AC2); and providing a switching control signal to the control signal input to switch the first and second switch means complementarily. The switch means may each comprise a power transistor (Q1; Q2) and a bridge rectifier (B1; B2).

Abstract: Distribution evaluation of regional lung ventilation is obtained by placing a radionuclide and an array of scintillation detectors on opposite sides of a subject from evaluation units. Each of the signals from evaluation units of the detectors is stored in a memory. The signals are compared in a comparison block, and the comparison is recorded by a recorder.