electricalengineeringquestionanswer

Power Electronics Technical Interview Questions asked in Ametek Aerospace                One of our friend shared his interview experience. The position is for Senior Power Electronics Engineer with 5 year experience. We believe that it will be usefull for your interview preparation... The following questins were asked in the interview... [1]   How to choose a micro controller? [2]  What is the difference between a LDO and a Linear regulator? [3]  What is the difference between I2C and SPI? [4]  What is the difference between logic analyzer and a oscilloscope? [5]  On what crises do we select components/Selection of a capacitor? [6] Opamps/ADC/DAC how do you interface them externally /which ADC/DAC you have been used  and why do you selected them/resolution ? [7]  What are usages and issues with J-Tag debugger? [8]  Any experience in Automation? [9]  Emi/Emc ...

These questions were asked in TCS campus interview at Govt. College of Engineering, Tirunelveli. 1. Tell me about yourself 2. About TCS 3. As a electrical engineer, why software company 4. Draw AND gate 5. what is difference between latch and flipflop A flip-flop continuously checks its inputs and correspondingly changes its output only at times determined by clocking signal. A latch is a device which continuously checks all its input and correspondingly changes its output, independent of the determined by clocking signal. 6. Types of flipflop: There are basically four main types of  flip-flops: SR, D, JK, and T. 7. Do you know C 8. Are you willing to travel for onsite ................................................................................................................................... Thanks for reading. Please leave your comments below.  Please share your interview experiences. We will post it with answers which will be useful for our readers.

These questions are asked in the technical interview conducted in Goodrich, Bangalore for the post of Design Engineer with 2 year experience. As it is for the experienced engineers, we would have to explain as much as possible about the topic. We did not answer the non technical questions here. A1: Question about previous exp. A2: Question about currently working project. [1] Explain the amplifier operation of OP-AMP? The golden rules of OP-AMP are: 1. Vout = A. Delta Vin  [ A = Gain, Delta Vin = V+  -  V-] 2. V--  < Vout  < V++ 3. Zout = 0    ,      Zin+ = Zin- = Infinity The opamp will work as inverting amplifier and non- inverting amplifier based on the supply applied to its terminals. Non Inverting Amplifier: Inverting Amplifier: [2]Interrupted and Asked to derive the equation... Current i =  (Vin-Vout) / (Rin+Rf)               =( Vin - Vx)/Rin = (Vout - Vx)/Rf Vx = virtual grou...