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New Circuit Projects

Using Aluminum Strip Heatsink for Hi-watt LEDs instead of PCB

Last Updated on June 20, 2019 by Swagatam 16 Comments

20131225 050828 2

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. Double Side PCB can be Costly However as we all know such PCBs are highly costly and could […]

Filed Under: Lamps and Lights Tagged With: Aluminum, Heatsink, instead, LEDs, Strip, Watt

Making a 10/12 watt LED Lamp with 12 V Adapter

Last Updated on January 17, 2025 by Swagatam 24 Comments

2013 1223 1158 30 2

In this post I have explained the construction of a homemade 10 watt LED lamp using ready made 12 V SMPS adapter. The project was successfully built by Mr. Debabrata Mandal. In many of previous posts I have discussed the use of 1 watt white LEDs for making high efficiency LED lamps for implementing in […]

Filed Under: Lamps and Lights Tagged With: Adapter, Lamp, LED, Making, Watt

How to Compare IGBTs with MOSFETs

Last Updated on January 23, 2024 by Swagatam 14 Comments

In this post I have explained the main differences between an IGBT and a MOSFeT device. I have explained more about the facts from the following article. Comparing IGTB with power MOSFETs The insulated-gate bipolar transistor features a voltage drop which is significantly low when compared to a conventional MOSFET in the devices which have […]

Filed Under: Electronics Theory Tagged With: Compare, IGBTs, MOSFETs

Bipolar Transistor Pin Identifier Circuit

Last Updated on June 20, 2019 by Swagatam 2 Comments

TransistorAnalyzer B

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. Investigated, Modified and Written By Abu-Hafss The E-B-C, NPN/PNP Detector Concept The jumper with one LED ON is connected to BASE. If it is red LED, […]

Filed Under: Sensors and Detectors Tagged With: Bipolar, Identifier, Transistor

Induction Heater Circuit Using IGBT (Tested)

Last Updated on January 24, 2024 by Swagatam 234 Comments

In this post I will comprehensively discuss how to build a high power 1000 watt induction heater circuit using IGBTs which are considered to be the most versatile and powerful switching devices, even superior to mosfets. Induction Heater Working Principle The principle on which induction heating works is very simple to understand. A magnetic field […]

Filed Under: Temperature Controllers Tagged With: Heater, IGBT, Induction, Tested

Lamp Outage Detector Circuit for Car Turn Signal

Last Updated on January 8, 2024 by Swagatam 2 Comments

Flasherwithmalfunctionindicator

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 Circuit Operation These flashers normally oscillate at about 1.4Hz. When a […]

Filed Under: Automobile Electronics Tagged With: Detector, Lamp, Outage, Signal, Turn

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