آمپلی فایر با آی سی 555 - نسخه قابل چاپ +- Parsi Coders (http://parsicoders.com) +-- انجمن: Electronics and Robotics (http://parsicoders.com/forumdisplay.php?fid=149) +--- انجمن: Electronics (http://parsicoders.com/forumdisplay.php?fid=150) +--- موضوع: آمپلی فایر با آی سی 555 (/showthread.php?tid=3634)

آمپلی فایر با آی سی 555 - a.mehran - 09-05-2014 The 555 can be used as an amplifier. It operates very similar to pulse-width modulation. The component values cause the 555 to oscillate at approx 66kHz and the speaker does not respond to this high frequency.  Instead it responds to the average CD value of the modulated output and demonstrates the concept of pulse-width modulation. The chip gets very hot and is only for brief demonstrations.