When I connect the 50/50 duty cycle output signal from a 555 timer chip to the input of a properly laid out LM393 comparator, the comparator is able to adjust the duty cycle of that input signal to a different duty cycle. In other words -- the comparator works.
But when the 50/50 duty cycle output signal from a 4027 flip-flop is connect to the input of the same LM393 comparator, the comparator doesn't seem to be able to adjust the output cuty cycle to a new required setting.
Can anyone explain to me why this is happening; and also help me with this.
What I need are two opposite adjustable duty cycle signals (thus the reason for the 4027 in the circuit). I then need to be able to reduce and control that duty cycle adjustment in order to control further circuitry.
Any help will be greatly appreciated.
But when the 50/50 duty cycle output signal from a 4027 flip-flop is connect to the input of the same LM393 comparator, the comparator doesn't seem to be able to adjust the output cuty cycle to a new required setting.
Can anyone explain to me why this is happening; and also help me with this.
What I need are two opposite adjustable duty cycle signals (thus the reason for the 4027 in the circuit). I then need to be able to reduce and control that duty cycle adjustment in order to control further circuitry.
Any help will be greatly appreciated.