Enter any three values and click Calculate. The empty field will be solved.
f = 1 / (ln(2) · C · (R1 + 2·R2))
C = 1 / (ln(2) · f · (R1 + 2·R2))
R1 = 1/(ln(2) · f · C) − 2·R2
R2 = (1/(ln(2) · f · C) − R1) / 2
T = 1/f
tHIGH = ln(2) · (R1 + R2) · C
tLOW = ln(2) · R2 · C
Duty = (R1 + R2) / (R1 + 2·R2)