Position: Index > Display Circuit >

555 sound and light simultaneous display stress electronic m

2016-12-13 06:58  
Declaration:We aim to transmit more information by carrying articles . We will delete it soon, if we are involved in the problems of article content ,copyright or other problems.

555 sound and light simultaneous display stress electronic metronome circuit
The stress electronic metronome is composed of the beat pulse generator, the beat type controller and the sound & light circuit, as the figure 14-37(a) shows, figure (b) is the waveform of all levels, figure (c) is the circuit. This metronome has 1-10 ten kinds of beat ways, the beat speed is 40-208 times/minute. The IC1-1(1/4CD4093) quad 2 input Schmitt trigger is connected as the beat pulse oscillator, the positive pulse width is 100ms, RP1 can be used to change the pulse interval. The IC2(CD4017) is the 1-10 circulation counter, the cycling time is set by K1. In this figure, K1 is in the position of 4 , the waveform b is the output pulse of it. The IC3(555) is under the action of the waveforms a and b to output the high tone sound waveform such as c.