Generator circuit of 555 square wave and sawtooth wave

Published:2011/9/18 22:06:00 Author:Ecco | Keyword: 555 , square wave , sawtooth wave, generator circuit | From:SeekIC

As shown in Figure 5-1, 555 and R2, C1, VT1 form a monostable trigger circuit, and the difference from the general flip-flop is that VT1, R1, R2, R3 form a constant current source, which charges for C1 to make a good voltage linearity, accurate delay. Delay time td = 1.1R2C1. If it requires trigger pulse period T to be greater than td, the output waveform is shown in Figure b.



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