The only electronic website that replies to every comment, and addresses all circuit related issues.

## IC 4040 Datasheet, Pinout, Application Circuits

The IC 4040 is technically a 12-stage binary ripple counter chip, in simple words a device which will produce a calculated delayed frequency output in response to every pulse applied at its clock input. This delay is incremented at the rate of 2^(n) where n is the pinout order in the sequence of its outputs.

## How to Use Aluminum Strip Heatsink for Hi-watt LEDs instead of PCB

Whenever we come across using 1 watt LEDs or other higher watt LEDs, we are always advised to use high grade aluminum based heatsinks for safeguarding the LEDs from heat, and for acquiring optimal performance from them. However as we all know such PCBs are highly costly and could be beyond the reach of new hobbyists. Using an ordinary aluminum strip as heatsink instead of a PCB looks to be an easy way out, let's learn more.

## Voltage Doubler Circuits Explored

The electronic circuit device which is used for stepping up voltage to a 2x order by charging capacitors from a lower input voltage is known as voltage doubler. The charge current is switched in such a manner that in any ideal situation, the voltage which is produced at the output is exactly two times that of the voltage at input.

## Homemade 10/12 watt LED Lamp Fixture Circuit

The post explains the construction of a homemade 10 watt LED lamp using 10 to 12 numbers of 1 watt LEds. The project was successfully built by Mr. Debabrata Mandal.

## Comparing IGBTs with MOSFETs

The post discusses the main differences between an IGBT and a MOSFeT device.

## What's IGBT - How it Works

The insulated-gate bipolar transistor (IGTB) device is a type of three-terminal power semiconductor device which are basically used as electronic switch and is also known for providing a combination of  extremely fast switching and high efficiency in the more newer devices.

## Bipolar Transistor Pin Identifier Circuit - E-B-C, NPN/PNP Detector

In the proposed BJT pin identifier circuit when the circuit is switched on, two jumpers will have both LEDs ON and the third will have only one LED illuminated. The jumper with one LED ON is connected to BASE. If it is red LED, the transistor is NPN otherwise, if green, it is PNP.

## Induction Heater Circuit Using IGBT

The principle on which induction heating works is very simple to understand. A magnetic field of high frequency is produced by the coil present in the induction heater and thus in turn eddy currents are induced over the metal (magnetic) object which is present in the middle of the coil and heats it. In order to compensate the inductive nature of the coil, a resonance capacity is placed in parallel to the coil.

## Car Turn Signal Flasher Circuit with built-in Lamp Outage Detector

The O.E.M. turn signal flashing units installed in automobiles have two  basic functions i.e. Flasher and Lamp outage detection. These flashers  are usually built with an 8-pin IC like U2044B, U6432B etc. which are  specifically made for automotive flashers.

Designed and Written By Abu-Hafss

## TSOP1730, 33, 36, 38, 40, 56 Infrared Remote Control Sensor IC Datasheet

The TSOP 17… series equipment is used in order to operate infrared remote control systems and consists of a number of miniature receivers. The lead frame is used to assemble the preamplifier and PIN diode along with the IR filter which is a design of the epoxy package.

Submitted By Surbhi Prakash

## Automatic Generator Choke Actuator Circuit

The post explains a simple automatic generator choke actuator circuit using a straightforward delay OFF timer circuit and a solenoid device.  The circuit was requested by Mr. Bob Perry.

## Make this LED Trouser Lights that Responds to your Foot Steps - Circuit Diagram

The post explains how to transform your ordinary trousers into a chasing LED lit trousers which produces an shooting LED light chasing effect in response to your foot step movement or thumping.

## USB 3.7V Li-Ion Battery Charger Circuit - Auto-Cut off Current Controlled

In this article we study a simple usb 3.7V li-ion battery charger circuit with auto-cut off, current control features.

## Vehicle Speed Limit Alarm Circuit

In our previous articles we have learned comprehensively regarding the ICs LM2907/LM2917 which are fundamentally frequency to voltage converter ICs, and are ideally applicable in all such relevant fields. Here we see how the same chip can be applied for making a vehicle speed limit alarm circuit.

## Simple Accurate Speedometer Circuit

Here we'll see how a simple yet accurate analogue speedometer circuit can be constructed at home using just a single IC and a few external passive components. The design can be used for all 2-wheeler, 3-wheeler, even in bicycles for indicating their speeds.

## Frequency to Voltage Converter IC LM2907/LM2917 Datasheet Pinouts

This is another excellent IC series which can be used for a multitude of different circuit applications. Basically it's a frequency to voltage converter (tachometer) IC with many interesting features. Let's learn more.

## Tilt Sensor Switch Circuit

The articles presents a simple water triggered switch which is effectively implemented as a super simple tilt sensor circuit. Let's know more.

## High Voltage, High Current Transistor TIP150, TIP151, TIP152 Datasheet, Application Note

The TIP150, TIP151, TIP152 series are high voltage, high current Darlington transistors which can be used for applications involving voltages at mains 120V or 220V levels. The datasheet and other related details can be read in the following article.

## Fading an LED ON/OFF - Arduino Basics

The post discusses a basic Arduino function where we learn the process of fading an LED ON/OFF through some basic code implementations.