This audio limiter circuit is easy to build ... Audio limiters can be used in a transmitter schematic or in any circuit you need a constant audio level.

This file type includes high resolution graphics and schematics. Front-end limiter circuits using Schottky and PIN diodes can provide needed protection in communications and other RF systems.

Figure 3 The active regulator, while not as popular as the capacitance multiplier, it does show up from time to time in published circuits. I first saw this circuit on Charles Wenzel’s website [1].

Contributing editor, Bob Pease, explains how to design several different circuits for limiting currents as high as 300 mA using an LM317, LM334N, IRF640 or IRF740. The other day I was studying a ...

Given the limited internal space constraints within receivers and the fact they must power a multitude of speakers (7 channels or more) while satisfying UL/CSA requirements, it is often necessary to ...