The 555 timer IC is an integrated circuit (chip) used in a variety of timer, pulse generation, and oscillator applications. The 555 can be used to provide time delays, as an oscillator
, and as a flip-flop element
. Derivatives provide up to four timing circuits in one package.
555 timer is used to generate clock signals in the ic 555 timer the pin no 8 is represents vcc
Place a diode in the circuit to bypass R2 during the charging cycle.. this will allow you to achieve duty cycles of < 50%
To provide gating pulse for power electronic switching device in Inverter. It decides frequency of output, hence should be monitored carefully.
555 an IC which can be used for many applications and one of the application is astable multivibrator. For many applications we use IC 555 because its cost effective and have lot of features.The main difference is astable multivibrator switches from one state to another state automatically i.e when a pulse is given to astable multivibrator, it immediately switches to high state and remains for certain time and switches back to low state. In 555timer you can decide your own application.