Voltage / pulse train conversion circuit composed of TC4013

Published:2011/7/7 6:33:00 Author:Lucas | Keyword: Voltage conversion , pulse train conversion | From:SeekIC

In the circuit, Al is charge-balanced integral amplifier. When UQ <O, the analog switch TC4066 is synchronously disconnected under the rising effect of the of clock, and Al integrates the input voltage Ui, and integral time constant is decided by Rl and Cl, Al output UQ is increased exponentially; When UQ> O, TC4066 is synchronously connected under the effect of clock, and integral circuit makes the reverse integration, and UQ is decreased exponentially; when UQ = O, the integral amplifier is used in combination with the comparator, which is synchronously controlled under the effect of clock to output pulse train which is proportional to input.



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