H - Electricity – 04 – R
Patent
H - Electricity
04
R
H04R 25/00 (2006.01) H03F 3/217 (2006.01) H03G 11/00 (2006.01) H04R 3/00 (2006.01)
Patent
CA 2070700
ABSTRACT OF THE DISCLOSURE In a method and circuit arrangement for limiting an output signal, an aggregate signal is formed from a base signal and from a triangular-shaped sampling signal, and a pulse-duration-modulated control signal is generated from the aggregate signal. Upon the occurrence of an upward transgression of a threshold potential, additional pulses are generated from the aggregate signal and are inserted into the pulse-duration-modulated control signal. The control signal is used to generate a demodulated useful output signal, and the additional pulses in the control signal effect a limitation of the amplitude of the output signal only after amplification has already occurred. The amplified output signal is thus limited without reducing the amplification gain.
Martin Raimund
Wolf Herbert
Aktiengesellschaft Siemens
Fetherstonhaugh & Co.
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