How to make indicator light Circuit Diagram

How to make indicator light Circuit Diagram Again, my LED is 1.7V, it takes 20mA (which is .02 A) of current and my supply is 4.5V. So the math is R = (4.5V - 1.7V) / .02 A R = 140 ohms Once I knew that I needed a resistor of 140 ohms to get the correct amount of voltage to the LED I looked into my assortment package of resistors to see if I could find the right one. Circuit 5# Battery voltage level indicator circuit. This circuit is simple battery level indicator circuit. Which be simple complicated can see that the circuit has will LED keep for display arrive at 3 step. The work of the circuit be this circuit was fixed come to give a temple volt usual that about 11V-14V.

2) LED as a Continuity tester: The above shown circuit is LED as continuity tester. This circuit is used for checking continuity of cables, connectors and switches. When A and B terminals are shorted, the LED glows due to battery connected inside indicating the presence of continuity. 3) LED as a High a.c voltage indicator: In this video, learn how to create a simple 220V LED indicator circuit using just a few components. This DIY project is perfect for beginners and requires mi Learn how to create a simple LED circuit diagram. This article provides step-by-step instructions for building a basic LED circuit. displays, and indicators. The basic components in an LED circuit diagram include the LED itself, a power source (such as a battery or power supply), resistors, and wires. The LED must be connected in the

Simple and Useful LED Circuits Circuit Diagram

LED indicators are crucial components in various electronic projects. They provide visual feedback on the status of a circuit or system. In this blog post, we'll explore how to create a simple LED indicator using a 555 timer IC. The circuit is built around the 555 timer IC, which is configured in astable mode to generate a square wave output. Simple Basic LED Circuit. Step 1: 3 Volt Basic LED Circuit With 10 Ohms Resistor. The above diagram shows a 3V LED circuit, in this circuit there are two AA cells are used. When you are operating an LED with 3V you have to use minimum 10 ohms resistor .

Simple 6 Watt SMPS LED Driver Circuit. The following design depicts a simple 6 watt driver example using a cheap commercial SMPS board. Simply by adding a current controller stage between the SMPS and the LEDs, we transform the SMPS circuit into a fully compatible LED driver module for the 6 watt LEDs. Parts List. T1 = TIP122. T2 = 2N2222