Drive circuit for driving useful signal with frequency-stabilized signal feedback has feedback stage for frequency-dependent signal feedback of each useful signal amplified by amplification stage

摘要

The drive circuit has at least one amplifier stage (3a, 3b) with low output impedance for signal amplification of the useful signal, a protective impedance (9a, 9b) connected after each amplifier stage for protection of the amplifier stage and a feedback stage (14a, 14b) for frequency-dependent signal feedback of each useful signal amplified by the relevant amplifier stage.