H03F1/3288

AMPLIFIER DEVICE WITH FEEDBACK AND FEED-FORWARD CONTROL
20260121592 · 2026-04-30 ·

An amplifier device may include a signal input for receiving a reference signal and amplifier circuitry. The amplifier device has a feed-forward signal path providing a feed-forward signal. First signal combining circuitry is configured to generate an error signal representative of a difference between the reference signal and a signal proportional to an amplified signal. Signal processing circuitry is configured to process the error signal to obtain a first signal. Second signal combining circuitry is configured to combine the first signal and the feed-forward signal to obtain a combined signal which is applied to an input of the amplifier circuitry. The signal processing circuitry has a limiter coupled to a loop filter. The limiter is configured to limit an amplitude of a second signal to a predetermined value thereby obtaining a limited signal. The loop filter is configured to obtain the first signal based on the limited signal.