Analog Electronics for GATE ECE

Hi Guys,

As per the request from many ECE guys for a post regarding Analog Electronics important topics, I am writing this post for them. Analog Electronics is one of the most important subjects for ECE and also since it is a core subject so it becomes much more important that this subject is covered in detail. But many GATE Aspirants are often confused as to what specifically we need to study from this subject as this subject is very vast in itself. This subject accounts for 10-12 marks in GATE exam and is very important if someone wants to pursue higher studies in Electronics domain. So, to reduce the effort we need to target the topics that are specific to GATE.

Diode Circuits

ECE guys will be very much aware of working of Diode in detail since they would have studied the same in Electronic Devices so they do not need to bother much about it. You can directly start from the current-voltage equation of diode and then proceed to Open Circuit and Short Circuit tests on a diode in order to determine the state of a diode. You can practice around 10-20 problems based on these tests in order to get acquainted with solving multi-diode circuits.

Then you can move onto standard applications of Diodes such as Clippers, Clampers, Rectifiers. You have to cover three categories of rectifiers i.e. Half Wave, Full Wave Center Tapped and Full wave Bridge Rectifiers. In each of these circuits, you must be aware of computing Ripple Frequency, Ripple Factor, PIV, Rectification Efficiency, TUF, etc.  Also, you have to study about rectifiers with the capacitive filter but other filters are not required for GATE.

Then one of the most important concepts in Diodes is the design of Voltage Regulators using Zener Diodes. You can study about various cases such as when Input Voltage is variable when Load is variable etc. Then, at last, you can study the application of clampers i.e Voltage Multipliers.