A simple LED torch circuit that would light up 3 white LEDs from a 6 volt supply and would make your battery last forever is described here. A useful voltage doubler circuit is incorporated here to make a highly efficient circuit using just a handful of components. Introduction Learn more how to build it. White […]
Search Results for: IC 4049 circuits
7 Easy Voltage Doubler Circuits Discussed
In this article I have explained 7 easy to build DC to DC voltage doubler circuits using a single IC 4049 and IC 555 along with a few other passive components. If you are wondering how a simple IC 555 can be used for making a powerful voltage doubler circuit, then this article will help […]
5 Simple Water Level Controller Circuits
An automatic water level controller is a device which senses undesired low and high water levels in a tank, and switches a water pump ON or OFF accordingly to maintain an optimal water content in the tank. In this article I have explained 5 simple automatic water level controller circuits which can be used for […]
NAND/NOT Gate RC Values Calculator
In this calculator, instead of entering resistor and capacitor values, you give target frequency, like 500 Hz or 1000 Hz… Then what the calculator does: Rearranged to: This is super useful when you want to hit some exact blinking rate, beep, tone or timer pulse. This Calculator will give you: Works for: Reverse NAND/NOT Oscillator […]
NOT, NAND Gate Frequency Calculator
Here we will learn how to use a NAND Gate Oscillator Calculator using CD4011 or any CMOS NAND gate IC. This calculator will take values of: NAND Gate Oscillator Calculator Calculator by homemade-circuits.com NAND Gate Oscillator Calculator Resistance (R) in ohms: Capacitance (C) in µF: Calculate Here is how this NAND oscillator actually works. We […]
LM195/LM395 Power Transistors Explained [Enhanced Power Transistors with Full Internal Protections]
The LM195 and LM395 are both high efficiency power transistors that were initially manufactured by National Semiconductor Corporation, and later acquired by “Texas Instruments”. These special power transistors are intended to be used in high power switching applications, where low power dissipation and high current gain are critical parameters. These special power transistors are virtually […]