Abstract: A band gap reference stage includes a pair of transistors each having a conduction terminal and a control terminal, the control terminals of the transistors being connected together. A circuit is also included for causing substantially identical currents to pass through each of the pair of transistors. The circuit includes first and second resistors connected in series to a voltage reference. The conduction terminal of one of the pair of transistors is coupled to the voltage reference by the first and second resistors, the conduction terminal of the other of the pair of transistors is coupled to the voltage reference by the second resistor. The ratio of the first resistor to the second resistor defines a reference voltage substantially unchanged by a temperature variation on the control terminals of the pair of transistors.

Abstract: Embodiments of the invention provide a circuit for generating a trapezoidal signal with controlled wavefronts, particularly for a converter for a satellite receiver, comprising a first oscillator suitable to generate a square-wave signal and a second oscillator which is cascade-connected to the first oscillator, wherein the second oscillator is synchronized with the first oscillator and is suitable to generate a voltage signal which is amplitude-modulated with a trapezoidal modulating signal.

Abstract: An electronic regulator for driving a power device connected to an output load having a first portion and a second protection portion, the first portion including a controlled switching element connected upstream of the power device and controlled by a timer adapted to be operated in a short circuit or overload situation of the device, such that the load current can flow in the power device in a pulsed state clocked by the timer.