Abstract:
An electronic circuit (100) is disclosed, comprising a node (EX), which connectable to a load (LD) to be driven and a power device (PD), which can be switched between activation and deactivation and having a first terminal connected to said node. The circuit further comprises: a current generator (I) having an output connected to said node and that can be enabled to generation, at least when the power device is deactivated; a comparator (CP) of an electric voltage of said node (V(EX)) with a reference voltage (V(REF)) configured to obtain comparison signals (RESETN), from which distinct conditions of electric connection of the load to said node will be detected.
Abstract:
A rectifying integrator of an input signal (VIN) with full output dynamic, relative to a voltage reference (VREF) intermediate in respect to the dynamic of the input signal (VIN), the line of integration of which is composed of an integrator of that portion of the input signal that exceeds the voltage reference (VREF) and of a hold capacitor (C 3a ) coupled in cascade to the integrator, includes a second line of integration, identical to the first line of integration, that integrates that portion of the input signal (VIN) that remains below the voltage reference (VREF), and an adder output stage that generates an output signal (VOUT) equal to the difference between the voltages existing on the hold capacitors (C 3a , C 3b ) of the lines of integration first and second.