Voltage drive circuit has output voltage monitoring stage with comparator of shifted output voltage and predefined anticipated voltage that drives current driver stage's current setting input

摘要

The circuit has an output voltage generator (102) with a current driver stage (106) with a current setting connection, an output voltage generating transistor (Q2) that switches on and off in coincidence with the input signal, an output voltage generating resistance (R2) that carries a current when the output voltage generating transistor is in a first state and switched on and an output point (112) at which an output voltage is generated that is shifted from a defined voltage by a potential drop caused at both ends of the output voltage generating resistor. An output voltage monitoring stage (104) contains a comparator (OP1) that compares the shifted output voltage with a predefined anticipated voltage with its output connected to the current setting input of the current driver stage. An Independent claim is also included for a device for testing a semiconducting device and for a voltage driver device.