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frequency doubler with 4069 – Circuit Schematic
frequency doubler with 4069
This frequency doubler using a single 4069 hex inverter IC, a frequency doubler can be constructed to give an output pulse train whose frequency is twice that o...
7 segment led counter – Circuit Schematic
7 segment led counter
This simple counter can be used to count pulses, as the basis for a customer counter (like you see at the doors of some stores), or for anything else that may b...
digital electronic lock – Circuit Schematic
digital electronic lock
The digital lock shown below uses 4 common logic ICs to allow controlling a relay by entering a 4 digit number on a keypad. The first 4 outputs from the CD4017 ...
keypad controlled switch – Circuit Schematic
keypad controlled switch
This is a simplified version of the 4-Digit Keypad Controlled Switch. I have modified the design to reduce the complexity of the circuit - and the number of com...
build an interesting light chaser circuit by cascading 4017 ics – Circuit Schematic
build an interesting light chaser circuit by cascading 4017 ics
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simple nand gate circuits small electronic projects – Circuit Schematic
simple nand gate circuits small electronic projects
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make simple logic circuit design projects – Circuit Schematic
make simple logic circuit design projects
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Shift register sequencer circuit – Circuit Schematic
Shift register sequencer circuit
I was particularly enamored over the mechanics of the Quantized Random Voltage function. The thought occurred to me that, instead of having fixed quantization...
Buffers – Circuit Schematic
Buffers
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Schmitt Inverter – Circuit Schematic
Schmitt Inverter
The Schmitt trigger is a special circuit which acts like a switch that changes state at two different thresholds. These are called the upper and lower threshold...
NuSTEPPER – Circuit Schematic
NuSTEPPER
The following is a copy of an article posted by Wilf Rigter to the original BEAM email list and as such represent an important historical and technical referenc...
digital wall clock with circuit diagram – Circuit Schematic
digital wall clock with circuit diagram
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Keypad circuit schematic with 7611 – Circuit Schematic
Keypad circuit schematic with 7611
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traffic light circuit diagram – Circuit Schematic
traffic light circuit diagram
The design of the current application of the wider selection of VHDL hardware description language to realize the intersection traffic light system controller h...
digital circuit diagram – Circuit Schematic
digital circuit diagram
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basics ladder logic – Circuit Schematic
basics ladder logic
Ladder logic programming method is a method commonly used in electrical simulation schematic control system programming languages evolved. A circuit control sys...
ttl three state logic probe circuit – Circuit Schematic
ttl three state logic probe circuit
The circuit presented here usesNAND logic gates of Hitachi HD seriesIC HD74LS00, which is a quad NANDIC. Special technique has been employedto obtain three-stat...
electrical engineering logic gates – Circuit Schematic
electrical engineering logic gates
Design a circuit with four single-bit inputs X, Y, T, and Z, but only one single-bit output E. A two bit control code word S0S1 selects which of the four inputs...
flip flop electronics – Circuit Schematic
flip flop electronics
flip flop A bistable multivibrator. A circuit which has two output states and is switched from one to the other by means.....
schematics traffic controller – Circuit Schematic
schematics traffic controller
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