projects:Designing a cut off 12V charger with TL431

About TL431 :

The TL430, was introduced as an adjustable shunt regulator in 1976 by Texas Instruments.

The TL431 was created as an improvement to TL430 with better accuracy and stability and was called a precision adjustable shunt regulator. The TL431 was announced as a future product in 1977 and launched in 1978
The TL431 is a three-terminal adjustable regulator series with a guaranteed thermal stability over applicable temperature ranges. The output voltage may be set to any value between VREF (approximately 2.5 volts) and 36 volts with two external resistors These devices have a typical dynamic output impedance of 0.2Ω. Active output circuitry provides a very sharp turn-on characteristic, making these devices excel lent replacement for zener diodes in many applications.
Lets use the voltage calculator tool:

Link : http://www.electronics2000.co.uk/calc/potential-divider-calculator.php

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MakeINAxom - a revolution that will light up assam (600Rs Inverters !)

#MakeINAxom #SOHOJELECTRONICS #SELABS MakeINAxom is a dream that will shine Assam and NE Region ..... এই ব্লগত SELABS বোলা অনুস্থানতোৰ সপোনক ৰাইজলৈ নিছোঁ SELABS কি , কি কৰিব বিচাৰিছে ? SELABS organization বনাইছিলো অকলেই , ইয়াৰ আৰম্ভনিত ২-৩বছৰে ফেচবুক গ্ৰুপ "SOHOJ ELECTRONICS TALK AXOM" ত ইলেক্ট্ৰনিক্সক লৈ কেনেকে প্ৰদাক্ত বনাব সেইয়া লৈ আহিছিলোঁ --- Eng:: The "SOHOJ ELECTRONICS TALK AXOM" face book group has been pioneer in bringing electronics and DIY to all in a simple way .It has acquired 9000members in 2 years that include people from all spares of job / academics . ---- SELABS কেনেদৰে বিপ্লব কৰিব বূলি ভাৱিব পাৰি ? SELABS প্ৰথমে বনাইছে সহজ-ইনভাৰ্তাৰ ৩ ৰুমত ১০০% উজ্জল লাঈত দিব দামী ইন্ভাৰ্তাৰৰ দৰে । কেবল ফেন আদি নচলে বেচিক মদেলত ,কাৰ দাম আৰু বেতেৰী যি দৰকাৰ তাৰ খৰচ কম ৰাখিবলে । The key points of MakeinAxom Industry Rs 600/-ইন্ভাৰ্তাৰ কৰি সকলোকে দিল্লীত বনোৱা বেয়া চাৰ্কিতৰ ইমাৰজেনচী আদিৰ পৰা আতৰাই অ

you said Joule Thief?

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We were covered in http://achhikhabre.com/kaushik-hazarika-sohoj-electronics-make-in-india-make-in-assam/ Who made the case ? Well I have handmande every case . Used strongest resin glue for front panel . The cabinets have a screwless look and sleek feel . Here is a real image : Many months of research for low cost inverter has given proven results . As I approached the poor to deliver 11-12hours of full light via a inverter the response was phenomenal . Faults issues and more fixes ......... Do the inverter have issues ? yes as of now 2 issue exist 1)if there is heavy spark at load the backEMF fries the low cut chip 2)no load voltage shoots to 400V so may fry few LEds but is the bulbs are secured they are not of that big concern , the mass delivery version will have the fixes for these .

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