555 Timer

Duty Cycle Oscope

Adjust the Duty Cycle of the 555 Timer without Changing the Frequency

This tutorial explains how to control the duty cycle of the 555 timer’s output. Not only does this design control the duty cycle but the frequency remains relatively stable during the adjustment. This is helpful for a number of applications such as working with pulse width modulation. Schematic: Formulas in the Video:

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