OP amplifier using FET input type long analog timing circuit

Posted on Mar 28, 2007

Although people think that now use the timer make sense amplifier OP is not large, but after the power is turned Ai as often positive output saturation such a high noise enviro

OP amplifier using FET input type long analog timing circuit
Click here to download the full size of the above Circuit.

nment, the application still has its advantages. With phase voltage input is saturation voltage (about 12 V) 1/2, since two cast pipe D, the voltage is turned on, the inverting input is fixed to about 0.6V 6 as input - 6V above the trigger, OP amplifier a negative output terminal MG fJ saturated and, at the same Yat-inverting input voltage is about - 6V, capacitor cl by anti-Ri to the charge voltage exceeds - 6V, : positive output reaches saturation, a fixed end of the cycle.

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