DIY audio amplifiers circuit diagram electronics projects and other related audio projects like : power amplifiers, audio systems, audio filters, vu meters, tone control, audio equalizers and more .
This electronic volume limiter circuit provides an input signal less rich in harmonics and an additional amplification, within certain limits (as long as it does not distort compression
Using this electronic power limiter circuit the output of a power electronic amplifier AF may be limited when they are exceeding the predefined amplitude and frequency output signal, or the current.
This 150W high power amplifier circuit diagram is designed using LM12 power operational amplifier made by National Semiconductor can be built audio power amplifier that can charge a maximum power of 150 watts.
Maximum allowable temperature of the output transistors is measured for power limiter control circuit which is part of the dynamic security protection. Power output stage is not connected to that pin until the voltage does not exceed 14 V (± 7 V). When the chip temperature rises above 150 ° C, output is automatically disconnected.
