On-off control SCR with logic gate IC
Controls & Timers
This is an SCR control circuit with digital logic. The behavior of the circuit. The input A to control current for SCR turn ON.The input B will stop the current SCR (OFF). Set the two input signals to a logic “1” to control, and it asked them to different times. The control SCR to conductors. When input A is logic “1” IC1a will return to a logic “0”. The C1 is charged from a positive light, through R3, The IC1b to the logic “1”, the output pin. This is a mono-Stable, a pulse of logic “1”, the value of C1, …
Simple 555 ICs Tester Circuit
Meters & Detectors
Most IC-555 is used to generate frequency, and sometimes we need to know. Is it good or bad? But normal multimeter cannot check it. Thus, I make a simple 555 ICs tester circuit. Which is tested correctly and faster. How it works Resistors R1-R3 acts as limit current and reduce voltage to LED1-LED3. Which is LEDs show state on “Trigger” or “Low” or “High”. The Diode D1 is set voltage to pin 2 less than 1/3 VCC (0.7 volts). When slide switch S1 at position 2 (Trigger IC). Before apply voltage to this circuit, we must put the test IC …
Two divide counter circuit using IC-4027
When you want to decrease the frequency in 2 digital times circuits or Divide Frequency by 2 counter. I advises use IC 4017, because seek easy cheapness can be usable good various. Related Links digital counter circuit More circuits about IC 4017 Frequency Divider circuit Digital frequency divider 10 Hz Timebase by IC 4017 Squarewave Oscillator by IC LM339 XR2206 Function Generator Cmos Logic Clock Oscillator by Ic 4011 X tal Oscillator Frequency by 74LS04
1 Hz Timebase  circuit using IC-4017
I used input frequency 10Hz to output 1Hz.This is a 10 divider circuit. When we need a standard digital clock 1 Hz. but we have the input signal is square wave form 10 Hz so need to reduct it lower with digital frequency divider circuit 10 times I suggest that IC 4017 (Decade Counter / Divider with 10 Decoded) from the familiar to make a 10 LEDs running light circuits, but this circuit we used a frequency dividing circuit 10 times, too. It’s interesting because it uses a single IC run it. The circuit is very simple. Would not be …
0-99 counter by IC 4017×2
Basic Circuits
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 perform choose RUN or Reset. Please see circuit picture will understand increasingly. Almost forget integrated number this circuit, want the fire feeds 3V low arrive at 15V because be IC digital CMOS there. Related Links More circuit digital counter More decade counter circuit More digital …
Linear x10 Amplifier by 4011 Gate
This is very basic amplifier circuit,so I use IC digital Cmos 4011 quad NAND gate. It is to give equal to 10x linear amplifier. The resistor R1 = 1M ohm , R2 = 10M ohm. This circuit can not output speaker because it is very low power amplifier. Related Links Basic amplifier Digital integrated circuit design Gate circuit Logic gate Not gate ic Led display with nand gate digital control Standard Touch Switch by Gate of IC 4011 Gate Alarm by IC 4011 Inverter Gate by IC 4011 Quad Nand Gate