Abstract: A MOS high side driver circuit switching a supply voltage by means of a power switching transistor M1 driven by a driving circuit in function of a drive switching signal C, utilizes a flip-flop for driving the gate of the power switching transistor M1. The inputs SET and RESET of the flip-flop are respectively connected to the drain node of two, grounded source, input transistors supplied from a V.sub.GG rail maintained at a constant potential difference from the source (output) node of the power switching transistor M1. Two pulse signals C.sub.R, C.sub.S and corresponding to a rising and to a falling edge of the drive switching signal C from which they are derived by suitable circuit means, are respectively applied to the gates of the two input transistors. The driving circuit dissipates only during transitions in contrast to the driving circuits of the prior art.

Abstract: A circuit for sensing the waveform of the current in a transistor, including a first transistor which is controlled on its base by a switching signal; a second transistor which is controlled on its base by a control signal which is inverted and delayed with respect to the switching signal, the collector of the first transistor being connected through a diode to the collector of the second transistor, the emitter of the first transistor and the emitter of the second transistor being connected to the ground; a third transistor connected with its base to the collector of the second transistor and with its emitter to the ground through a resistor, the third transistor being switched on when the second transistor is switched off and the first transistor is on.

Abstract: A driving circuit comprising a low-voltage power supply line, a MOS transistor having a gate terminal and a drain terminal connected to a load and a control stage connected to the power supply line and to the gate terminal of the MOS transistor. In order to allow the MOS transistor to be switched on even when the voltage of the power supply line is lower than the threshold voltage of the MOS transistor, the driving circuit comprises a bipolar transistor connected in parallel to the MOS transistor and a voltage multiplier circuit connected between a common terminal of the MOS and bipolar transistors and the control stage.

Abstract: A circuit for the linear measurement of a current flowing through a load which comprises a current sensor consisting of a resistor, and a first driver transistor connected to the load and a second transistor connected to the resistor, both transistors being field effect transistors interconnected into a current mirror configuration, which includes an operational amplifier having its inputs respectively connected to the drain electrodes of the first and second transistors to regulate the drain-source voltage of the transistors and enable linear measurement of the load current irrespective of the operating temperature.

Abstract: A circuit device is provided for feedback controlling a transistor to switch off which is incorporated to a transfer circuit as the last stage thereof, and when, during the "off" phase, a current is drawn through its base by another transistor, referred to as the switch-off transistor, which is conductive for just the time required for said switching off to take place.

Abstract: A monolithically integrated control circuit for the switching of transistors includes a control circuit coupled to a switching signal source. Signals from the signal source cause control circuit to switch at least one transistor connected thereto. The control circuit includes a current generated circuit designed to supply the at least one transistor with a high current. A current limiting circuit, actuated with a predetermined delay with respect to a turn-on cntrol signal used to switch the at least one transistor, limits the current supplied from the current generator circuit to the minimum level required to keep the at least one transistor at a conduction level which has been reached.