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Ammo Box Sequencer – Circuit Schematic
Ammo Box Sequencer
This is the Sequencer circuit. Power to the Logic portion of the circuit is provided by a standard commercial "wall-wart" power adaptor supplying 6 VDC. The 555...
sequencer circuit – Circuit Schematic
sequencer circuit
I am feeding that box with 12 volts, and it has a sequencer board, some external relays to drive the coaxial relays, preamp and the amplifier. As you can see, t...
Flash-Triggered Pulse Stretcher Using Classic Monostable Circuit – Circuit Schematic
Flash-Triggered Pulse Stretcher Using Classic Monostable Circuit
This is a flash triggered (photo-driven) circuit which produce a pulse with constant predetermined wide. This circuit can be used to control any device which.....
LM139 One-Shot Multivibrator – Circuit Schematic
LM139 One-Shot Multivibrator
The circuit below is a one-shot multivibrator. One shot multivibrator is also known as monostable multivibrator, or timer. The main function of such circuit is....
LM139 One Shot Multivibrator/Timer – Circuit Schematic
LM139 One Shot Multivibrator/Timer
One shot multivibrator circuit is also known as monostable multivibrator or timer. The function of such circuit is simply produce a pulse strobe with a fixed.....
Supply Voltage Monitor with 555 IC – Circuit Schematic
Supply Voltage Monitor with 555 IC
This is a supply voltage monitor circuit, an indicator to show if the power supply is in good condition. Designed using the IC 555 timer, this circuit will.....
One-Shot Multivibrator – Circuit Schematic
One-Shot Multivibrator
A one shot multivibrator generate a fixed width pulse at the output when the input is triggered. This fixed width output should be consistent, regardless the.....
Extending 555 Timers Delay with Integrator – Circuit Schematic
Extending 555 Timers Delay with Integrator
555 IC is very popular component for timer circuit. With integrator circuit, we can extend the timing period of 555IC timer with reasonable capacitor size.....
Opto-Coupled Discrete Pulse Stretcher – Circuit Schematic
Opto-Coupled Discrete Pulse Stretcher
This is a pulse stretcher circuit using optocoupler. This circuit uses a 4N26 opto-coupler combined with a standard one-shot circuitry. This circuit is.....
Digital Sample And Hold – Circuit Schematic
Digital Sample And Hold
If you need to hold an analog signal for infinite period then this digital sample and hold circuit is the solution. This circuit uses a Exar XR-2240 programmabl...
567 IC Pulse Generator With 25% Active Factor – Circuit Schematic
567 IC Pulse Generator With 25% Active Factor
Unique applications of 567 tone/frequency decoder IC? Here is one of them: pulse generator with 25% duty cycle (active factor). This signal generator produce.....
555 IC Tone Burst Generator – Circuit Schematic
555 IC Tone Burst Generator
An excellent tone burst generator can be made using 556 Dual Timer. We can connect the first half as a one-shot and the second half as an oscillator. The.....
Relay Driver with Strobe – Circuit Schematic
Relay Driver with Strobe
LM111 comparator can be used o design a relay driver with TTL strobe, this can be used to provide more control of your relay driver. You can control the strobe....
Oscilloscope-Triggered Sweep using 555 IC – Circuit Schematic
Oscilloscope-Triggered Sweep using 555 IC
We can use the 555 timer to hold the cost down of adding a triggered sweep to an economy oscilloscope. The timer is triggered by the circuit`s input op amp,.....
Driving Relay with 555 IC – Circuit Schematic
Driving Relay with 555 IC
This is a Driving Relay circuit using 555 IC. The circuit is used to drive a relay to avoid 555 hangs up, it uses an inductive feedback. The coil is prevented.....
Driving Relay with 555 IC – Circuit Schematic
Driving Relay with 555 IC
This is a Driving Relay circuit using 555 IC. The circuit is used to drive a relay to avoid 555 hangs up, it uses an inductive feedback. The coil is prevented.....
Fast Pulse Detector – Circuit Schematic
Fast Pulse Detector
A schematic diagram of a fast pulse detector is show in the figure below.  Error detection rate under 10% can be expected for 60 ns pulse. To get error free.....
Fast Pulse Detector – Circuit Schematic
Fast Pulse Detector
A schematic diagram of a fast pulse detector is show in the figure below.  Error detection rate under 10% can be expected for 60 ns pulse. To get error free.....
Pulse Width Modulator Using 555 IC – Circuit Schematic
Pulse Width Modulator Using 555 IC
A very simple pulse modulator circuit can be built using 555 IC. In 555 chip, a special modulator input is available at pin 5. Here is the schematic diagram of....
Pulse Width Modulator Using 555 IC – Circuit Schematic
Pulse Width Modulator Using 555 IC
A very simple pulse modulator circuit can be built using 555 IC. In 555 chip, a special modulator input is available at pin 5. Here is the schematic diagram of....