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  1. Y

    what is the equivalent of BAY61 diode?

    help me plz Dear all, what is the equivalent of BAY61 diode? can i use 1N4007 instead of it? thanks all.
  2. Y

    Help me please to design this circuit

    hi all, I'm trying to design a circuit of three phase controlled rectifier, now i need a circuit to trigger thyristors and this circuit should be variable, i mean with variable that α angle should be adjustable for all thyristors at the same time and α angle can be varied using a potentiometer...
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    Help me plz, i need your great knowledge

    Dear all, i have an electronic controlling cards which have a defect somewhere in it, i have checked all analogue components such as (diodes, transistors, resistors .... etc), but there is no error found, now I want to check the ICs that is located at this card, how can i do that???? the types...
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    Please help me (Inverter Question)

    Hi all, I'm sorry if i cause any inconveviences to anyone, i have a question but i don't have an exact answer, the question is "Why the capacitor cannot be connected to the load of the inverter?", i tried to get an answer, does that relates to the charge of the capacitor :?: , i mean by that...
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    Electronic Workbench Question

    google electronic workbench manual Hello all, I have a problem in using Multisim Electronic Workbench, how can i trigger thyristors, Triacs and IGBTs , please if any one can upload a file of multisim Less than version 10 that explain how previous mentioned devices triggering, thank you, Yousef...
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    Please Help me in MATLAB Simulink Program

    I have a problem in my MATLAB program, it is about three phase inverter with induction motor load with sinusoidal wave pulse width modulation which will be applied to the gate of the thyristors bridge. please help me in my question, the problem is when i connect the induction motor the MATLAB...
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    What is the difference between closed integration and opened integration ?

    Pls i have a question, it seems desired for me . my question in electromagnetic : Q : What is the difference between closed integration and opened integration ? this question seems easy but i can't understand why we take closed integration to find manetic field inensity : ∫H dl = N i ; but this...
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    How to use Multisim to simplify the Boolean Function?

    hello all, pls i want to know how can i use Multisim to simlify the Boolean Function, and how can i simplify it using PAL (Programmable Array Logic) . if any one know how can i do that pls help me, and if can you explain it with example pls give me that. Thanks, yousef omran. [/b]
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    Basic questions about diodes

    pls i need questions of Diode .
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    Help me find code for two programs in C++

    help me plz in C++ Plz help me to find the solution of two programs in C++: 1. program to creat array and save the values in it , and save the factorial of those values into another one (Using Array) . 2. program to creat a binary search.
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    two questions in c++ required solution

    Plz help me to find the solution of two programs in C++: 1. program to creat array and save the values in it , and save the factorial of those values into another one (Using Array) . 2. program to creat a binary search.
  12. Y

    Question in DC circuit

    hello all ; i have a question , it seems easy but it has a trick the question is : Find the current through each component using superposition . the circuit in attachments , i solve the question and i found the value of current passing through each resistor is euqal 2A . This answer is correct...
  13. Y

    How the current branches in short circuit?

    Hello All, Plz dears I have a problem with short circuit that found in complex (connection resistor in series and parallel) circuit, however I can't determine when we remove the resistor in short cicuit, plz help me and I want from you if Anyone have a book or paper about short circuit plz...

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