Digital Circuits Lecture-52: Conversion of Flip - Flops

In this lecture, i explained the concept of conversion of flip-flops. i.e i shown how to covert SR to JK, D, and T - FF and vice versa.


For Video Lecture follow the below link:  
https://youtu.be/GK5SG1OI4sQ

For Lecture Material download from follow the below link:
http://www.mediafire.com/file/r5v3mbo97a38ru4/DE-Lec-52.pdf 

Digital Circuits Lecture-51: FLIP - FLOPS

In this lecture, i discussed about the all flip -flops i.e SR, JK, D and T flip - flop. in this i explained their operation and how to draw functional table, characteristic table and excitation table for all the flip-flops.

For Video Lecture follow the below link:  
https://youtu.be/OTUURs7FLsI

For Lecture Material download from follow the below link:
http://www.mediafire.com/file/n6j7ibwg8x248a9/DE-Lec-51.pdf 

Digital Circuits Lecture-50: LATCHES

In this lecture, i discussed about the latches. i.e SR and D latches. in this i discussed about the SR latch using NOR gates and NAND gates, also discussed latches with control input. and explained D-latch operation.
i introduced what is preset and clear inputs.


For Video Lecture follow the below link:  
https://youtu.be/seG2CIcYF5A

For Lecture Material download from follow the below link: 
http://www.mediafire.com/file/8wzpq7kai0sbs1p/DE-Lec-50.pdf

Digital Circuits Lecture-49: Introduction to Sequential Circuits

In this lecture, i have given a brief introduction to sequential circuits.


For Video Lecture follow the below link:  
https://youtu.be/dW7b1CBpYIg

For Lecture Material download from follow the below link: 
http://www.mediafire.com/file/6fb0fq29pj891re/DE-Lec-49.pdf 

Digital Circuits Lecture-48: Designing combinational circuits

In this lecture, i discussed how to design a combinational circuits for given specifications or requirements.

For Video Lecture follow the below link:  
https://youtu.be/F4U6OwufIJs

For Lecture Material download from follow the below link:
http://www.mediafire.com/file/no8bvvhe8vzn5p3/DE-Lec-48.pdf 

Digital Circuits Lecture-45: Demultiplexer

In this lecture, i discussed about the operation of demultiplexer.

For Video Lecture follow the below link:  
https://youtu.be/2W38QbSSn8Y

For Lecture Material download from follow the below link:

http://www.mediafire.com/file/ks2syqit3uhvhui/DE-Lec-45.pdf 

Digital Circuits Lecture-44(C): Implementation of large size MUX using smaller size MUX

In this Lecture, i have shown how to implement large size multiplexers using smaller size multiplexers.


For Video Lecture follow the below link:  
https://youtu.be/H2wCE6Z6xbg

For Lecture Material download from follow the below link:

http://www.mediafire.com/file/961z5a6jn8k0ckt/DE-Lec-44%28c%29.pdf 

Digital Circuits Lecture-44(B): Implementation of Boolean function using multiplexers

In this lecture, i discussed how to implement Boolean functions using multiplexer. and also shown how to implement all logic gates using 2 by 1 multiplexer.


For Video Lecture follow the below link:  
https://youtu.be/UYtk3FsMcB4

For Lecture Material download from follow the below link:

http://www.mediafire.com/file/n6chhu285uunaq7/DE-Lec-44.pdf 

Digital Circuits Lecture-43: Decoders

In this lecture, i discussed about the decoders, i.e how to design 2 by 4 decoder and 3 by 8 decoder. and also discussed decoder with enable inputs.
and also shown
design of a 2 -to-4 line decoder with active high enable input
design of a 2 -to-4 line decoder with active low enable input  
design of a 2 -to-4 line decoder with active low outputs

For Video Lecture follow the below link:  
https://youtu.be/xWmB_91SZEM

For Lecture Material download from follow the below link:
 http://www.mediafire.com/file/gclxpzk6ohi8dbb/DE-Lec-43-1.pdf

http://www.mediafire.com/file/ey49niiofeuxnsd/DE-Lec-43.pdf 

Digital Circuits Lecture-42: Encoders

                                In this lecture, i discussed about the encoders, i.e normal encoder and priority encoder. and i discussed what are the advantages of encoder and also i have shown how to implement the logic diagram from the truth table.

For Video Lecture follow the below link:  
https://youtu.be/RTsaVc3vYYg

For Lecture Material download from follow the below link:
http://www.mediafire.com/file/2zuab10pztqffke/DE-Lec-42.pdf 

Digital Circuits Lecture-41: Magnitude Comparator

In this lecture, i discussed how design a 2-bit and 3-bit magnitude comparators.

For Video Lecture follow the below link:  

https://youtu.be/-Ufcd3pYihk

For Lecture Material download from follow the below link:

http://www.mediafire.com/file/22vj9iwoanx1kwn/DE-Lec-41.pdf 

Digital Circuits Lecture-40: Binary Multiplier

                             In this lecture, i discussed the binary multiplier i.e 2-bit by 2-bit multiplier and 3-bit by 2-bit multiplier and implementations using combinational circuits.

For Video Lecture follow the below link: 
https://youtu.be/C45ZKVjC72A

For Lecture Material download from follow the below link:
 http://www.mediafire.com/file/xwoqphwe4kt5s1e/DE-Lec-40.pdf

Digital Circuits Lecture-39: Subtractors

In this lecture, i discussed subtractors in digital systems. i.e half subtractor, full subtractor, binary subtractor and adder cum subtractor. and also implemented half subtractor and full subtractor using minimum number of nand gates and nor gates.

For Video Lecture follow the below link: 
https://youtu.be/ijjJec_GqX0

For Lecture Material download from follow the below link:
http://www.mediafire.com/file/m4ikh38m9evoy6i/DE-Lec-39.pdf 

Digital Circuits Lecture-38: Implementations of Adders using universal gates

                                  In this Lecture, i have shown how to implement half adder and full adder using minimum number of only nand gates and only or gates.


For Video Lecture follow the below link: 
https://youtu.be/TZ174l_SClQ

For Lecture Material download from follow the below link:
 http://www.mediafire.com/file/2zs6k6dn325zkd5/DE-Lec-38.pdf 

Digital Circuits Lecture-37: Adders - Part 2 ( carry lookahead adder)

                                   In this lecture, i discussed the operation of carry lookahead adder and logic circuit diagram. and also discussed why carry lookahed adder is a high speed adder.


For Video Lecture follow the below link: 
https://youtu.be/C8tDw1-6SFk

For Lecture Material download from follow the below link:
http://www.mediafire.com/file/ofapt8c87z5jk17/DE-Lec-37.pdf 

Digital Circuits Lecture-36: Adders - Part 1

                         In this lecture, i discussed half-adder, full-adder and binary adder. i.e their block diagrams, truth tables and implementations.


For Video Lecture follow the below link: 
https://youtu.be/O6Q7QLzIgB4

For Lecture Material download from follow the below link:
 http://www.mediafire.com/file/dl9w5ftyduuu13d/DE-Lec-36.pdf

Digital Circuits Lecture-35: Introduction to Combinational Circuits

                                   In this lecture, i have given a brief introduction to combinational circuits, i.e why we need to study and what is combinational circuit, difference between combinational circuit and sequential circuit etc.

For Video Lecture follow the below link: 
https://youtu.be/gx6TmCmJdtc

For Lecture Material download from follow the below link:
 http://www.mediafire.com/file/07o13en2kdvg5w7/DE-Lec-35.pdf
 

Digital Circuits Lecture-34: Applications of EX-OR and EX-NOR Functions

                              In this Lecture, i discussed the applications of Ex-OR and EX-NOR functions as even parity generator and checker, odd parity generator and checker which are used in error detecting circuits in digital systems.

For Video Lecture follow the below link: 
https://youtu.be/UF11unhc_os

For Lecture Material download from follow the below link:
http://www.mediafire.com/file/25zp082db4pquga/DE-Lec-34.pdf 

Solutions to Questions on Boolean algebra and logic gates

                Hai all, In this post i am giving a link for the PDF of solution sheet for some problems on Boolean algebra and logic gates.

Download Sheet From the below link:

http://www.mediafire.com/file/j7kxy71kyxne7xc/solutions_to_questions_on_Boolean_algebra.pdf

Problem Sheet On K-map

                         In this post i am giving a link for the PDF of Problem sheet on  gate level minimization i.e on K-map and implementations using two-level gates, try to solve all the problems. i will upload solutions to specific problems. these problems i have taken from Digital Design by Morris Mano.

Download Sheet From the below link:

http://www.mediafire.com/file/r8lja4mhl2nn3tk/problems_on_gate_level_minimization.pdf 

Digital Circuits Lecture-33: Two-Level and Multi-Level Implementations

                              In this lecture, concept of two-level and multi-level implementations is discussed with some examples. and also discussed degenerate forms and non degenerate forms of two-level implementations.

For Video Lecture follow the below link: 
https://youtu.be/MEilDu-YrmM

For Lecture Material download from follow the below link:
http://www.mediafire.com/file/lw71fpb1rqpsk7j/DE-Lec-33.pdf 

Digital Circuits Lecture-31: Discussion on previous GATE Questions from K-map

                                  In this lecture i solved previous GATE problems from K-map and also given some short cut methods to find the solutions.


For Video Lecture follow the below link: 
https://youtu.be/ZraXILaTulw

For Lecture Material download from follow the below link:

http://www.mediafire.com/file/j7s6u3ysab5zjza/DE-Lec-31.pdf 

Solution Sheets On Number System

Hai all, In this post i am giving a link for the PDF of answer key and solution sheets for some problems on Number system for the problem sheet which i uploaded earlier.

Download Sheet From the below link:

http://www.mediafire.com/file/ax077h04c2z0932/answer_keys_to_problems_on_number_systems.pdf

http://www.mediafire.com/file/707142wti5lioaa/solutions_to_problem_sheet_1_on_number_systems.pdf

http://www.mediafire.com/file/wsx4ugc4a659b2f/solution_to_problem_sheet_2_on_number_systems.pdf

Digital Circuits Lecture-30: Prime Implicants and Essential Prime Implicants

                          In this lecture, i discussed prime implicants and essential prime implicants in minimization of Boolean  functions using K-map with examples.


For Video Lecture follow the below link: 
https://youtu.be/01f68d_xUVk

For Lecture Material download from follow the below link:
http://www.mediafire.com/file/pz53ciosg7lkjjl/DE-Lec-30.pdf 

Digital Circuits Lecture-29: Don't-Care Conditions in K-map

                               In this lecture, i discussed don't-care conditions on K-map and solved some examples based on don't-care conditions.

For Video Lecture follow the below link: 
https://youtu.be/1czUDagpW-c

For Lecture Material download from follow the below link:
http://www.mediafire.com/file/recp0bh9f3hksms/DE-Lec-29.pdf

Digital Circuits Lecture-28: Five-Variable K-map

In this lecture, i discussed five-variable K-map with examples, and also solved few examples on 4-variable K-map.

For Video Lecture follow the below link: 
https://youtu.be/oDbFUxhOtCk

For Lecture Material download from follow the below link:
http://www.mediafire.com/file/6fx8bqjxlw164ka/DE-Lec-28.pdf

Digital Circuits Lecture-27: Four-Variable K-map

In this lecture, i discussed four-variable K-map with examples.

For Video Lecture follow the below link: 
https://youtu.be/sxjIpkusniI

For Lecture Material download from follow the below link:
http://www.mediafire.com/file/7npujd9ndfpm7rs/DE-Lec-27.pdf 

Digital Circuits Lecture-26: Three-Variable K-map

In this lecture, i discussed three-variable K-map with examples.

For Video Lecture follow the below link: 
https://youtu.be/ZJWdERJUMNs

For Lecture Material download from follow the below link: 
http://www.mediafire.com/file/41nbqjn12ekc2bj/DE-Lec-26.pdf 

 

Digital Circuits Lecture-25: Two-Variable K-map

In this lecture, i discussed two-variable k-map using minterms and maxterms with examples.

For Video Lecture follow the below link: 

https://youtu.be/MZaT_fNs4g4

For Lecture Material download from follow the below link:

http://www.mediafire.com/file/71nfqctizk47toc/DE-Lec-25.pdf 

Digital Circuits Lecture-24: Introduction to the Karnaugh map (K-map)

In this lecture, i discussed why we need gate-level minimization and introduced K-map.


For Video Lecture follow the below link: 

https://youtu.be/1SiJx-I70hY

For Lecture Material download from follow the below link:

http://www.mediafire.com/file/zqr202auem77byz/DE-Lec-24.pdf 

Important points and concepts in Boolean algebra and logic gates

                                 In this post i am giving important points and concepts in Boolean algebra and logic gates .Read all the concepts it will be helpful for gate as well as other competitive exams. 

Download the PDF file from the below link:

http://www.mediafire.com/file/7326o32u4xa2q07/Important_points_in_Boolean_algebra_and_logic_gates.pdf

Important points and concepts in Number systems

                                 In this post i am giving important points and concepts in number systems.Read all the concepts it will be helpful for gate as well as other competitive exams. 

Download the pdf file from the below link:

http://www.mediafire.com/file/ofc6ah2kc3oigkm/important_points_in_number_systems.pdf

Problem Sheet on Boolean algebra and logic gates

                        In this post i am giving a link for the PDF of Problem sheet on  Boolean algebra and logic gates, try to solve all the problems. i will upload solutions to specific problems and answer key for all the problems. these problems i have taken from STLC by A. Anand Kumar.

Download Sheet From the below link:

http://www.mediafire.com/file/1eh4zdwphc5f4lx/problems_on_Boolean_algebra_and_logic_gates-1.pdf

 http://www.mediafire.com/file/gs5zvfdn4dfwxb5/problems_on_boolean_algebra_and_logic_gatez-2.pdf

Problem Sheet On Number System

                        In this post i am giving a link for the PDF of Problem sheet on Number system, try to solve all the problems. i will upload solutions to specific problems and answer key for all the problems. these problems i have taken from STLC by A. Anand Kumar.

Download Sheet From the below link:

http://www.mediafire.com/file/53o3louc4b3ip2n/problems_on_number_systems-1.pdf 

http://www.mediafire.com/file/8vcrntl5i7qjilp/PROBLEMS_on_number_systens-2.pdf 

 

Digital Circuits Lecture-23: Representation of Boolean functions

                             In this lecture, concept of representation of Boolean functions is explained.i.e types of representations like SOP and POS forms and conversion between canonical forms, SSOP and SPOS. and also i solved few problems on SOP and POS forms.

For Video Lecture follow the below link: 

https://youtu.be/dUst2h2zf44

For Lecture Material download from follow the below link:

http://www.mediafire.com/file/p37q443pte2m9o1/DE-Lec-23.pdf 

Digital Circuits Lecture-22: Discussion on GATE Questions from logic gates

In this lecture, i solved previous gate questions on logic gates.


For Video Lecture follow the below link:
https://youtu.be/rwvH9c8-x1U

For Lecture Material download from follow the below link:
http://www.mediafire.com/file/bm771cg6fuh5bq8/DE-Lec-22.pdf

Digital Circuits Lecture-21: Implementation of Boolean functions using logic gates

                                In this lecture, i discussed how to implement the logic functions using basic gates and universal gates and the differences between them.


For Video Lecture follow the below link: 

https://youtu.be/XcASAWt9_vA

For Lecture Material download from follow the below link:

http://www.mediafire.com/file/wig42fiw9uibdtp/DE-Lec-21.pdf

Questions on basics of Signals and Systems

Questions on basics of Signals and Systems:

                           In this post i am uploading some questions from oppenheim basic problems.try do them if any problem is there just mail me . my mail id: venky.mannem@gmail.com.
i will upload answers by 4th June.

Download problem sheet from the below link:

http://www.mediafire.com/file/2k84kwq79y85q3a/SS-QUESTIONS_ON_BASICS_OF_SIGNALS.pdf 

Digital Circuits Lecture-20: Alternate Logic Gates (Bubbled gates)

Digital Circuits Lecture-20: Alternate Logic Gates (Bubbled gates)
                 In this lecture, i discussed about alternate symbols for logic gates or also called bubbled gates.
 

For Video Lecture follow the below link: 

https://youtu.be/bBjMPMRpOJs

For Lecture Material download from follow the below link:

http://www.mediafire.com/file/na82q5nwpmx1o1x/DE-Lec-20.pdf

Digital Circuits Lecture-19: NOR Gate Implementations

Digital Circuits Lecture-19: NOR Gate Implementations
                                           In this lecture, i shown how to implement other logic gates and Boolean functions using only NOR gates.

For Video Lecture follow the below link: 

https://youtu.be/Q45yO_W2uxw

For Lecture Material download from follow the below link:

http://www.mediafire.com/file/ok2c7aaa5fbvvdn/DE-Lec-19.pdf

Digital Circuits Lecture-18: NAND Gate Implementations

Digital Circuits Lecture-18: NAND Gate Implementation
                                   In this lecture, i shown how to implement other logic gates and Boolean functions using only NAND gates.

For Video Lecture follow the below link: 

https://youtu.be/elkc1_RSvBw

For Lecture Material download from follow the below link:

http://www.mediafire.com/file/0882i8b20pralo3/DE-Lec-18.pdf

Digital Circuits Lecture-17: Logic Gates (Part-2)

Digital Circuits Lecture-17: Logic Gates (Part-2):
                                        In this Lecture, i discussed the universal gates and their symbols and truth tables, special gates , their symbols, truth tables and their properties.

For Video Lecture follow the below link: 

https://youtu.be/Y4vtuZuOp90

For Lecture Material download from follow the below link:

http://www.mediafire.com/file/rg7c6uu9q0uqa74/DC-Lec-17.pdf 

Digital Circuits Lecture-1-14: Number Systems

Digital Circuits Lecture-1-14: Number Systems
                            In these lectures i have discussed about various number systems and conversion between number systems. and also discussed Complements, binary codes, alpha numeric codes, subtraction using complements, how to represent a negative number using sign magnitude form.

For Video Lecture follow the below link:

https://youtu.be/EEeCBv-lDgU 

For Lecture Material download from follow the below link:

http://www.mediafire.com/file/m418bxpbb0xnd9k/DEC-Number_Systems.pdf 

Digital Circuits Lecture-16: Logic Gates (Part-1)

Digital Circuits Lecture-16: Logic Gates (Part-1):
                         In this lecture, i discussed about logic gates, i.e why we need to study about logic gates and discussed about three basic gates AND, OR and NOT gate, their logic symbols, general expressions and logical expressions and truth tables.

 

For Video Lecture follow the below link: 

https://youtu.be/1qHuVDQ9obc

For Lecture Material download from follow the below link:

http://www.mediafire.com/file/i463h7n4y77740q/DC-LEC-16.pdf