555 Dual astable multivibrator circuit

Published:2011/9/18 21:46:00 Author:Ecco | Keyword: 555, Dual , astable , multivibrator | From:SeekIC

As shown in Figure 3-17, the circuit has two synchronized multivibrators whichare composed of 556 dual time-base circuit, andit can output two clock pulse signals simultaneously, the spacing and oscillation frequency can be changed by adjusting the time constant. When you select C1 = C2 = C, f = 0.91 / (R1 + R2) C, duty cycle depends on the value of R1 and R2 and it can be up to 5% to 95%.



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