home icon
en iconen
es icones
fr iconfr
pl iconpl
ru iconru
/img/555a.png icon

555 as an astable multivibrator

You can use this calculator in two ways:
  • to analyze multivibrator circuit you need to fill all the fields within the top-left cell and click [Compute timings] button
  • to synthesize the multivibrator circuit you need to fill all the fields within the top-right cell (chosing adequate units and parameters) and click the [Compute elements] button
NOTE: duty cycle (DC) must be > 50%!
More details here.

Circuit analysis:

R1 = 

R2 = 

C = 


Circuit synthesis:

f/T = 

DC = 

C/Rx = 


Results:
automatically select units

R1 = Ttotal =
R2 = Thigh =
C = Tlow =
f = DC = %

resistors in parallel
capacitors in series
inductances in parallel
LC resonance circuit
bandspread capacitors circuit
single-layer air-cored coil
circular loop coil
square loop coil
frequency,wavelength,period
three-digit capacitor markings
resistor codes (4 bands)
resistor codes (5 bands)
choke/inductor color codes
555 astable
555 monostable
match standard Ex value
combine standard E6, E12 & E24 values
LM317 voltage regulator
dBm ⇆ mW converter
mm ⇆ in converter
resistance of a wire
Ohm's law
dropping resistor for 'P' tubes
dropping capacitor for 'P' tubes
dropping resistor for 'U' tubes
dropping capacitor for 'U' tubes
line-of-sight
dropping resistor for LEDs
Y-Δ transform
Y-Δ transform (capacitances)
parabolic antenna gain
AWG converter

[ekalk]© Sławek Wernikowski, 2012-2016. Set of useful interactive calculators for electronics constructors and hams.

All suggestions and comments are always welcome.

[ekalk] uses cookies to improve its quality. You can change your browser settings to avoid storing cookies at your computer.


free counters

[[3.6 2014-10-09]]