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Astable Flip Flop Circuits (techlib) - Several circuits here.
The familiar astable flip-flop circuit is a handy configuration for making
flashers or generating squarewaves. Here is a typical alternating LED
flasher with the LEDs in the emitters instead of collectors as is normally
done. The bias resistors are directly connected....(added 04/05/06)
Astable Multivibrator - The capacitor C charges via R1 and R2 and
when the voltage on the capacitor reaches 2/3 of the supply, pin 6 detects
this and pin 7 connects to 0v. The capacitor discharges through R2 until its
voltage is 1/3 of the supply and pin 2 detects this and turns off pin 7 to
repeat the cycle....
Astable Multivibrator - As shown in the schematic diagram here,
the astable multivibrator simply extends the modification that converted the
bistable multivibrator to a monostable version of the circuit. Now, both
transistors are coupled to each other through capacitors. Whichever
transistor....(electronic circuit added 7/03)
Astable Multivibrator (Bill Bowden) - Scroll to find this circuit.
This is an astable multivibrator circuits to alternately flash two LEDs. The R &
C values determins….(electronic schematic / circuit added 4/02)
Astable multivibrator (blinkie) - A pulse generator, or astable, circuit can
be made using four resistors, two capacitors, two LEDs and two transistors. 'Blinkie'
uses these components to form a face, with the flashing LEDs representing the eyes.
(electronic design added 08/08/08
Astable multivibrator lights LED from a single cell - 21-Aug-08 Issue of EDN
A classical multivibrator drives a step-up inductor to power an LED from a single
cell.... [Design Idea by Luca Bruno, ITIS Hensemberger, Monza, Lissone, Italy]
Astable Multivibrator Projects - Astable or free-running multivibrators have
been used in home-built amateur radio equipment for many years. The basic circuit is a
two stage amplifier with AC-coupled feedback from output to input. One transistor
stage is on ( conducting current )....(designed added 08/08/08)
CMOS Toggle Flip Flop using Laser Pointer - The circuit below uses a CMOS
dual D flip flop (CD4013) to toggle a relay or other load with a momentary push
button. Several push buttons can be wired in parallel to control the relay from
multiple locations. A high level from the push button is coupled to the set line
through a small (0.1uF) capacitor. The high level from the Q output.... [Bill Bowden's
site]
CMOS Toggle Flip Flop Using Push Button - The circuit below uses a CMOS dual
D flip flop (CD4013) to toggle a relay or other load with a momentary push button.
Several push buttons can be wired in parallel to control the relay from multiple
locations. A high level from the push button is coupled to the set line through a
small (0.1uF) capacitor. The high level from the Q output.... [Bill Bowden's site]
