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Totem-Pole Output configuration found in ICs – Circuit Schematic
Totem-Pole Output configuration found in ICs
A type of output structure used with integrated circuits in which one transistor drives the output high while another transistor connected below it pulls the ou...
TTL Load circuit – Circuit Schematic
TTL Load circuit
A device through which an electric current flows and which changes electrical energy into another form. Power consumed by a device or circuit in performing its ...
Logic Probe Circuit Schematic Diagram – Circuit Schematic
Logic Probe Circuit Schematic Diagram
The following instructions will allow you to build a practical test tool for troubleshooting and analyzing digital and microcontroller circuits. The complete As...
Coin Counter summing the counter outputs – Circuit Schematic
Coin Counter summing the counter outputs
The outputs of all coin counters are summed in a 74LS126 tri-state buffer which is used so that all the counter outputs can be connected to the input.....
Bistable Multivibrator (Flip-Flop) – Circuit Schematic
Bistable Multivibrator (Flip-Flop)
This circuit is a bistable multivibrator, or flip-flop. Click on the "set" input at lower left to bring the output high (5V). Click on the "reset" input at lowe...
7-Segment LED Decoder – Circuit Schematic
7-Segment LED Decoder
It can be possible and it can be implemented using P-MOS and N-MOS together in a circuit i. e. what is called C-MOS. There we can implement Three Terminal NAND ...
1-of-4 Decoder – Circuit Schematic
1-of-4 Decoder
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8-bit Digital to Analog converter (DAC) – Circuit Schematic
8-bit Digital to Analog converter (DAC)
This article aims to introduce to beginners and intermediate readers a simple solution to build a digital to analog converter, based on the famous r/2r resistor...
74HC4052 Dual 4-channel analog multiplexer demultiplexer – Circuit Schematic
74HC4052 Dual 4-channel analog multiplexer demultiplexer
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Pulse Reading Logic Probe – Circuit Schematic
Pulse Reading Logic Probe
This logic probe uses a single CMOS IC and shows three logic conditions, High, Low and Pulsing. In addition if the probe input is neither hi or low (the high im...
Game Circuits – Circuit Schematic
Game Circuits
The circuits in Figure1 and Figure 2 exhibit certain advantages over the circuit shown in the Design Idea in EDN, "Circuit detects first event, " May 3, 2001, p...
Bistable Multivibrators – Circuit Schematic
Bistable Multivibrators
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 paral...
CMOS Toggle Flip Flop Using Laser Pointer circuit – Circuit Schematic
CMOS Toggle Flip Flop Using Laser Pointer circuit
The IR photo transistor Q1 (Radio Shack 276-145A) or similar is connected to the set input (pin 6). The photo transistor should be shielded from direct light so...
Electronic Selector for 10 sources with Display-Relay Drive circuit – Circuit Schematic
Electronic Selector for 10 sources with Display-Relay Drive circuit
This is a circuit for alternative sources selection. It combines mechanical selection using a rotating switch S1, the electronic drive of the relays RL 1-10 and...
Electronic Toggle Switch No1 circuit – Circuit Schematic
Electronic Toggle Switch No1 circuit
This simple circuit will energize and de-energize a relay at the push of a button. Pushing the button once - will energize the relay. And pushing it a second ti...
Dicing With LEDs circuit – Circuit Schematic
Dicing With LEDs circuit
Every self-respecting DIYer makes his own electronic dice with LEDs as spots. Then you don t have to throw the dice anymore just push the button. The electronic...
123 Game - All MCU-free circuit – Circuit Schematic
123 Game - All MCU-free circuit
This electronic game pits a human player against the ˜machine. The opponents use a common ˜game token and take turns moving along a path by one, two or three ...
Electronic Dice circuit – Circuit Schematic
Electronic Dice circuit
The particular circuit is substantially a generator of accidental numbers, from 1 until the 6. The clue him we see in a line from led, that each one corresponds...
Digital Roulette with Display circuit – Circuit Schematic
Digital Roulette with Display circuit
This circuit is a small digital ?roulette``. It is constituted by oscillator IC1, the counter IC2, the transistors Q1-7 that drive the display common cathode DS...
Quiz Circuit – Circuit Schematic
Quiz Circuit
This design uses four IC`s and has four input circuits and four independent outputs and a single master reset switch. The outputs here are LED`s but may be modi...