digital

This is versatile digital counter circuit, that as a cheap due to basic components you can buy in many electronic shop. My friend said the some circuits that price same this circuit may be not worth it. You can apply too much model as you want with special feature of this circuit following.
1.A count up or count down the time.
2. Can connect output to a 7 segment LED both a Cathode common or Anode common.
3. Can store a collection of information
4. Can set number counting in advance.

In circuit as figure 1 is shown normal operation, by set the circuit are 2 main, that if we want more than this, it can be connected together to added unlimited.

Figure 1 is A versatile and cheap digital counter circuit

The heart of the circuit is composed of 2 parts.
1. A decoder and drive LED display.
2. The counter number on the Binary Code Decimal Output that use IC2-CD4510

Source:

Logic probe is useful tool to measure, in a check digital circuits. As a meter, which is used to measure power in electrical circuits. Logic probe was used for detection logic “1″ and “0″ or pulse in a digital circuit. It has a handle. At the head of a pin, for measuring different parts of the circuits, or IC pin. At handle has a state of the LED display, as a “1″ or “0″ or pulse. Before use, to connect the two wires to pinch the power supply. To power the internal circuitry. Can be used with TTL and CMOS.

I compiled the logic probe types, You can create it yourself is not hard to follow.

Temple three state logic ic CD4001

The work of the circuit be the circuit will use not gate IC in show supervision. In case of still have no input signal come in be liberate input pin of IC1/1 float keep. Which make have impedance very many, which have no LED anything shine come out.

Read more source: Logic probe circuit

We are experimental to create a simple counter circuit today, is a 2-bit binary counters.
Which consists of the gate and flip-flop both of TTL-IC type. We use the ICs are NAND Gate number: SN7400N and the flip-flop No: SN7473N, which consists of JK-FF two pieces. We use only one at a time, so can try it on the counter.

Experimentation
- Build circuit as Figure 1. The NAND Gate 2 pieces in IC-SN7400N connect as RS-FF(a flip-flop) for one pulse when we press switch one time.

For JK-FF both in the IC-SN7473N that, We will use as T-FF , with connections pin J, K and CLR pin as marked “1″, and then pin CLR(Clear) is the flip-flop reset pin to output Q in the “0” status with Do not sign up with my JK and CK.

Read more at source: http://www.eleccircuit.com/the-experimentation-of-2-bit-binary-counters-by-cd4027-sn7473/

Decade Counter Circuit Jan 7, 2011 … Related Links More Circuit about digital counter More 7 segment LED countercircuit More decade counter circuit 4-digit Up-Down counter with …

Random number with led 1 digit This is a circuit diagram showing the random nature of LED 7 segment. In the diagram circuit IC1 – LM555, R1, R2 and C2 on the circuit a sensitive multi-Stable Brett Foster (Astable. multivibrator circuit) function generator signal square (Square Wave) and send the pin 3 of IC1. It can change the frequency by VR1.

Random Number Generator by IC 4017 and 4011 This be Random Number Generator Circuit there is the character is 10 LED Flasher by use IC 4017 and IC 4011. For the 4017 IC is a 16-pin CMOS decade counter. It takes clock pulses from the clock input, and makes one of the ten outputs come on in sequence each time a clock pulse

4511 Binary to Decimal decoder This isn’t a very useful or interesting circuit but it demonstrates the prinicple of a Binary to Decimal decoder IC such as the IC 4511. Read More Source: http://www.geocities.com/electronics3456/4511.html Thank you. Related Links More Circuit about digital counter More 7 segment LED counter circuit More decade counter circuit 4-digit Up-Down counter with PIC 16F88 PIC16F84A

4017 Led Pattern-Flasher The circuit uses a 555 timer oscillator to supply clock pulses of a variable frequency to the 4017 decade counter. The decade counter only needs to have three outputs so the fourth output goes into the reset pin to start the cycle all over again. The central red led is always on. Each row of

0-99 counter by IC 4017×2 When you want the counter circuit since 0 arrive at 99. I thinks this circuit may on the same wave length you certainly. it uses IC LM4017 decade counter/divider follow circuit picture. When feed a signal clock at 14 pin cause the position logic at a pin output. From 0 to 99 for switch S1

Voice logic probe by transistor BC557 The key is that the logic probe circuit, using a light emitting diode, or LED display is a state (high or low) point of the analysis, but on the other hand, it can display the state has the same voice. The circuit is shown, it is the audio source, click the tiny speaker with a

Oscillator astable multi-vibrator with Crystal controller Oscillator circuit of this nature.Often used as a clock circuit.This circuit uses a million crystal frequency control with stability.And a circuit that does not use the capacitor or Inductor all. Each transistor to work, the amplifier with feedback. The Q2 transistors to circuits with a gain equal to 1.The gain of the transistor Q1, as

Concentration test circuit This is the test concentration range, is ideal for a player to a game. Without a Net Amri alarm will be heard immediately. Operation of the circuit is to use Q1, Q2, R1, R2, R3, R4, C1 and C2 together astable multi vibrator is a rectangular waveform generator (Square Wave). It provides approximately 3 kHz

Battery operated heater Here is a simple heater circuit that can be operated from a 12V battery. The first part of the circuit is an astable multivibrator build around the two transistors Q1 and Q2 .The ON time of transistor Q2 is set to 0.5 S. The ON time of transistor Q1 can be varied by using the

Lamp Flasher by 2N2907 Bipolar Transistor I has evered to play the leading role Lamp Flasher Circuit with the integrated circuit. Which be the circuit that is simple but at this time a friend someone complain to come to that want the circuit that use the transistor. I then lead this circuit has come to in rows think to you. By