DCförvrängning
DCförvrängning is a type of signal distortion that introduces a non‑zero average value, or DC component, into a waveform that is expected to have a zero mean. The term is used in electrical and electronic engineering to describe the deviation of an ideal alternating‑current (AC) signal after it has passed through a system that is not perfectly balanced or that contains components with offset errors.
When a signal is distorted by DCförvrängning, the entire waveform is shifted vertically. In audio circuits
Common causes of DCförvrängning include mismatched coupling capacitors, thermal drift of transistors, soldering errors that introduce
Measurement of DCförvrängning is typically performed by low‑pass filtering the output and recording the mean voltage,
Mitigation techniques involve using high‑quality, low‑leakage capacitors for coupling, careful component matching, adding high‑pass filters at