Free Running Oscillator Circuit


Posted on Feb 7, 2014

This is a circuit for oscillator using astable mode operation. The basic oscillatior is using 555 timer IC. This circuit is also give mode free running oscillator. This is the figure of the circuit. Operation of the circuit is begin, when initialy by capacitor C charged towards 2/3 V+ with Ra and Rb. When voltage on C reaches that threshold level,


Free Running Oscillator Circuit
Click here to download the full size of the above Circuit.

the discharge output in pin 7 is turning on to discharging C. Using CMOS 555 timer IC is a very wide frequency at very low of voltage spikes and dissipation can be achieved. Selections of values the Ra and Rb is limited by input leakage specification at time in pin 7, 2, and 6.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Domestic VLF Reception
    10 Amp 13 8 Volt Power Supply
    50MHz frequency counter V-meter & SWR/PWR indicator
    A Noise Meter Circuit::: save ears PCB
    One-IC two-tones Sirens
    Auto Heat Limiter for Soldering Irons
    Humidity detector circuit electronic project
    Analogue Inputs to MIDI Out
    ZX Interface 2
    sine wave oscillator
    Telephony DTMF Circuits
    It used to delay the monostable multivibrator circuit diagram of a continuous sequence



    Top