What is duty cycle in 555 timer?
What is duty cycle in 555 timer? The duty cycle in a 555 integrated circuit (IC) is the percentage of time that the output is high for each cycle of the square wave. For example, if the total cycle time is 1 s and the output is high for the first 0.4 s of each cycle, the duty cycle is 40%. How is the duty cycle of a 555 timer calculated? The duty cycle is therefore given as D = R1/(R1 + R2). Then to generate a duty cycle of less than 50%, resistor R1 needs to be less than...