Subscribe
 


555 timer oscillator circuit

Google
Electronics Infoline Web





NE555 drives a speaker (PWM AMP - Pulse Width Modulation Amplifier)

NE555 drives a speaker (PWM AMP - Pulse Width Modulation Amplifier)

This idea is used in old days. Old engineers could not get the good audio transistors. Therefore , they tried to construct an audio power amplifier with a chap switching transistor.

http://www.intio.or.jp/jf10zl/pwmamp.htm

555 oscillator

555 oscillator

This is the square wave oscillation circuit which used NE555

http://www.hobby-elec.org/e_ckt5.htm