The total score of 100 will be in two parts, e.g. a) continuous evaluation-60 and b) semester end viva-
40.
A full mark of 10 is allotted to each job. At the end of each job, the teacher will evaluate the performance on the
basis of initiative, innovativeness, speed and insight. The sum of 6 such evaluations will make the total for
continuous evaluation.
At end semester, each student will be interviewed to assess his expertise in various facets of electronic design,
and a score out of 40 will be allotted.
A. DISCRETE ANALOG CIRCUITS.
1. Rectifiers.
(To design a rectifier for a given average output dc voltage and a given load resistance,
compare between the theoretical values of Vdc, Vrms, RF, HD, output regulation, transformer
utility factor etc. with the measured values, and thus comprehend the relevance/effect of these
various parameters.)
2. DC power supplies regulation and protection circuits.
(To learn designing a series transistor based output regulation circuit, an output current
limiting circuit, fold back circuit needed for a given output parameters.)
3. Single stage audio frequency voltage amplifier with BJT for a given Av, Zin and Zout and maximum
symmetrical out put swing.
(To learn basic design principles, different methods of biasing, bias stability, selection of
transistor from data manuals and effect of ac coupling on bandwidth.)
4. Single stage audio frequency emitter follower with JFET for a given Av, Zin and Zout and maximum
symmetrical out put swing.
(To learn the design principles and applications of an emitter follower.)
5. Complimentary symmetry power amplifier with pre amplifier, if necessary, for a given out put power
to a given load with single ended power supply.
6. RC phase shift Oscillator , Wien Bridge oscillator, Hartley and Colpitt oscillator
( To learn the design of oscillators and measuring the frequency and amplitude of oscillations)
B. OPAMP BASED ANALOG CIRCUITS
1. Inverting and non-inverting amplifier of given dc gain, input impedance and output impedance.
(To learn the basic design, inter relation between the dc gain and input/output impedances,
offset balance and the relation between feedback and GBW.)
2. Adder and subtractor.
(To learn the basic design and function of a multi input adder/subtractor (with ac and dc inputs
present simultaneously).
3. Comparator/voltage level detector for a given upper threshold level and a given lower threshold level
with facility of independent adjustment of hysteresis and center point.
(To learn the design and the technique of independent adjustment of both hysteresis and center
point.)
4. Active filters: LP, BP, HP, 1st order, 2nd order.
(To learn the design of a filter and it’s inherent phase shifting characteristics.)
5. 555 based monostable and astable of duty cycle below and above 50%.
(To learn designing 555 based timer circuits.)
B.DIGITAL LOGIC CIRCUITS
1. Design and implement a BCD to 7-segment decoder with basic and universal gates.
(To understand clearly the method of writing a truth table, use of K-map, simplifying a logic
function and optimum design with minimum number of ICs and inputs.)
2. Design and implement a 4-digit frequency counter with a clock generator.
(To learn designing a digital circuit using available standard gate, FF, counter and display Ics.)
3. Designing logic circuits using multiplexers, demultiplexers and gates to implement logic functions.
(To learn the use multiplexers and demultiplexers)
4. Design and implement a sequence detector.
(To learn designing a sequential circuit, whose output is 1 or 0 when any input bit is preceded
or succeeded by a predefined binary sequence. To define the input & output sequence from a
given physical problem, to prepare a state diagram, derive a minimal state table, to find the
simplified state equation, to implement the same & verify the result)
5. To design and implement a combination of a logic circuit and a RAM in order to generate a 4-bit data
after simplifying a logic expression, to store the output data at a predefined location in the RAM, to
retrieve the same and verify.
(To comprehend the structure and operating principle of memory devices.)
D. Power Electronics
1. Design a Single-phase full & shaft controlled converter.
2. Design of Microprocessor based Triggering socket.