The timer output waveform may be changed by modulating the control voltage applied to the timer's pin 5 and changing the reference of the timer's internal comparators. Figure2 illustrates the pulse width modulation circuit.
 When the continuous trigger pulse train is applied in the monostable mode, the timer output width is modulated according to the signal applied to the control terminal. Sine wave as well as other waveforms may be applied as a signal to the control terminal. Figure1 shows the example of pulse width modulation waveform.

  • How are  control of device time keeping?
  • In Figure 2 What shows?
Picture
Figure1
Picture
Figure2



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