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Topic :: Diode
i have ht transformer of 142 kva with air cooled facility,having secondary voltage 7850volt, and secondary connected full way bridge rectifier .i faced the problem repeatedly that transformer one coil and rectifier diode of two phase was burnt two times. i checked all the secondary ckt. no any short ckt found,then what will be the cause side
2 3002According to Shockley equation, the I – V characteristic of a diode is approximated by I = IS [ exp (nVD / VT) – 1 ]. For silicon, let the reverse bias saturation current IS as 0.000000000001. If n is ideality factor with value of 1.5, VT as thermal voltage drop of 0.026 V at room temperature, what is the value of current I that passes through the silicon diode in the heater of evaporator when the forward voltage drop VD = 0.026 V? Please take note that exp is the exponential function with e(1) = 2.718, e(2) = 7.389.
1 2918As we know diode work on both negative and positive but converting ac into DC we have to given a/c from negative of diode or positive side.please give me answer.
cpgn,
1737ELECTRICAL TECHNOLOGY - EXAMPLE 16.1 : According to Shockley equation, the I - V characteristic of a diode is approximated by I = IS [ exp (nVD / VT) - 1 ]. For silicon, let the reverse bias saturation current IS as 0.000000000001. If n is ideality factor with value of 1.5, VT as thermal voltage drop of 0.026 V at room temperature, what is the value of current I that passes through the silicon diode in the heater of evaporator when the forward voltage drop VD = 0.026 V? Please take note that exp is the exponential function with e(1) = 2.718, e(2) = 7.389.
1 2507
how we start 40w tube light with 4 diodes,2capacitors,1 choke and without starter.(a product avilable in market which lights burnt tube lights also)
Why arc quenching is used in Diode ?
in a silicon diode we can measure .7v in a voltmeter.but why we can't use this voltage for using?
state the care that shall be taken while checking the diode
Is there a diode made that works with AC 120 volt 20 amp? If so can it completely stop all current flow in 1 direction at all times?
what is resistive diode?
how can i calculate increase electrical signal power expected at the photodiode detector output given 2 optical loss coefficients and the distance covered using multimode.thank you.
how to find the resistance and gap volatage of the diode??
HAVE ANY ONE LIST OF THE FORMULAS WHICH ARE USED TO SOLVE SOLUTION OF THE DEVICES (DIODE,TRANSISTOR,CAPACITOR,FET,MOSFET)?
What is the instrument to check the rotating diode fuse of alternator in running conditions?
explian PIN photodiode and avalanche photodiode
IN A PN JUNCTION DIODE,( ON FORWARD BIAS ) WHEN ELECTRONS AND HOLES PAIRS MADE AND CURRENT FLOWS,THEIR IS NO END OF ELECTRONS AND HOLES IN A LITTLE SEMICONDUCTOR DEVICE.
"How to check the diode, fuse and bearer switch?"
difference between a diode and thyristor?
What is the difference between diode and a transistor in terms of the direction of current flow?
