PROCESS AND DEVICE FOR TESTING AN IMPEDANCE CONNECTED TO A LOW-FREQUENCY AMPLIFIER

摘要

A process and device are disclosed for determining in a simple manner an impedance connected to a low-frequency amplifier. For that purpose, the output of the low-frequency amplifier is decoupled and a current is transmitted into the amplifier output. The voltage established at the amplifier output as a result of the current flowing through the impedance connected thereto represents a measure for the connected impedance.