i am a engeneering student,studing in 4th sem of deploma(electrical and electronics) in karnataka..

Iwant to make a mini project like Inverters,SCR battry chargers, emergency lamp,swtching of device with timers......

which project will u suggest to me..........?

i want to make the project easy and not so costly..

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Hi, I want project report for presentation..............etc

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i need to do a mini projet usig scr .kindly helps us ,thank you...............etc

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Battery charger circuit using SCR.


Description.

A simple battery charger based on SCR is shown here.Here the SCR rectifies the AC mains voltage to
charge the battery.When the battery connected to the charger gets discharged the battery voltage
gets dropped.This inhibits the forward biasing voltage from reaching the base of the transistor Q1
through R4 and D2.This switches off the transistor.When the transistor is turned OFF,the gate of
SCR (H1) gets the triggering voltage via R1 & D3.This makes the SCR ..............etc

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Pl help I am need of Industrial Report on SCR..............etc

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I need just a report abstravt of battery charger using scr..............etc

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PHASE-ANGLE CONTROL OF SCR USING AT89C51
Silicon-controlled rectifiers (SCR) are solidstate semiconductor devices that are usually used in power switching circuits. SCR controls the output signal by switching it ‘on’ or ‘off’, thereby controlling the power to the load in context. The two primary modes of SCR control are phase-angle fired-where a partial waveform is passed to regulate the power.
In the phase-angle controller, the firing pulse is delayed to turn on the SCR in middle of every half cycle. This..............etc

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Abstract
Organic electronics, (plastic electronics or polymer electronics), deals with conductive polymers, plastics, or small molecules. It is called 'organic' electronics because the polymers and small molecules are carbon-based, like the molecules of living things. This is as opposed to traditional electronics (or metal electronics) which relies on inorganic conductors such as copper or silicon. Polymer electronics are laminar electronics
applications
negative differential resistance(switches)
melanins. Historically, melanin is anoth..............etc

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BRIEF DESCRIPTION OF COMPONENTS:
1) Transformer:-
A transformer is a static device which consists of two or more stationary circuits interlinked by a common magnetic circuit for the purpose of transferring electrical energy between them.
• E.M.F equation of a transformer:
e=4.44Baft
B=maximum flux density in the magnetic circuit.
a=area of cross-section of the core.
f and t are frequency and no. of turns respectively.
• Step up and step down transformer:
A step up transformer is one whose secondary voltag..............etc

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scr,block diagram of battery charger,working of charger...............etc

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