555 Timer IC Calculator(Astable)

555 Timer Calculator(Astable)

This Calculator is only for Astable mode operation. Here you have to give the value of R1, R2 & C1. The value of R1 & R2 should be in K Ohms and C1 in micro-farads(uF). Then press the button 'Compute' and get your results. Here you will get the Positive Pulse width T1 & Negative Pulse width T2 in milliseconds. After adding these two Pulse width you will get total pulse width T. You wiil also get the frequency of the output signal in KHz. From all these data you can calculate the duty cycle of the signal with these following Formula below,

Calculator:

Put Your Value Here

R1 (K Ohms)	R2 (K Ohms)	C (uF)
			Ariful's
T1 (milliseconds)	T2 (milliseconds)	Frequency (KHz)	Design

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Author

H. M. Ariful