Syllabus for the Trade of “Electronics Mechanic” Duration: 6 Months Second Semester Semester Code: ELM: SEM II Analog and Digital Electronic Circuits OBJECTIVES Construct and test simple amplifier circuits Construct and test wave shaping circuits Identify and test power electronic components Identify and test opto electronic devices Practice SMD Soldering and De-soldering of Simple SMD components Identify and verify truth tables of various digital ICs using Data book Practice circuit simulation software to simulate and test the circuits Stimulate and test various circuits using the software Identify and test various types of LEDs and LED displays Construct and test various OP-AMP IC based circuits Construct and test 555 IC based application circuits 12 SYLLABUS FOR TRADE PRACTICAL AND TRADE THEORY SEMESTER-II Week No 1 Trade practical Transistor 2-3 Identify PNP and NPN Transistors Record the different specification of transistors using data book/web site Identify different transistors with respect to different packaging styles, power, switching transistor, heat sinks Measure E-B, C-B & C-E terminal resistances and infer. Construct and test a transistor based switching circuit to control a relay (use Relays of different coil voltages and Transistors of different β ) Construct a Transistorized amplifier vary the gain by changing the circuit components Amplifier Construct and test voltage divider bias Construct and Test a common emitter amplifier with and without bypass capacitors Construct and Test common base amplifier Construct and Test common collector/emitter follower amplifier Construct and Test Darlington amplifier Construct and test a two stage RC Coupled amplifier Construct and test a Class B complementary push pull amplifier Construct and test class C Tuned amplifier 13 Trade theory Construction, Working of a PNP and NPN Transistors. Purpose of E, B & C Terminals. Flow of currents into and out of terminals of PNP/ NPN Transistors and their relations. Significance of β of a Transistor Need for Biasing of Transistor junctions, Interpretation of main parameters of a Transistor.VBE, VCB,VCE, IC, IB, Junction Temperature, junction capacitance, Frequency of operation, Discuss a Transistor application as a switch. Discuss a Transistor application as an amplifier. Define input impedance and output impedances Transistor power ratings & packaging styles, use of different heat sinks. Transistor (CB, CE & CC) configurations and their characteristics and applications Transistor biasing circuits and stabilization Techniques. Classification of amplifiers according to frequency, mode of operation, methods of coupling, Voltage amplifiers- voltage gain, loading effect. Configuration of common emitter, common base, common collector transistor, their definition characteristics and applications. Single stage CE amplifier, (CC amplifier) emitter follower circuit and its advantages RC coupled amplifier, Distinguish between voltage and power amplifier, Push pull amplifier and class C tuned amplifier Alpha, beta, voltage gain, Concept of dB dBm. Feedback and its types. 4 5 6-7 8 Demonstrate Colpitts oscillator, Hartley oscillator circuits Construct and test a RC phase shift oscillator circuits Construct and test a crystal oscillator circuits Demonstrate Astable, monostable, bistable circuits using transistors. Wave shaping circuits Construct and test shunt clipper Construct and test series and dual clipper circuit using diodes Construct and test clamper circuit using diodes Construct and test Schmitt trigger circuit using transistors Power Electronic Components Identify FET transistors and record main parameters from the Data book Test the given FET using multi meter Construct and test a FET Amplifier Identify SCRs of different ratings and the packages Test different SCRs using a Multi meter and component tester Construct a test circuit to test SCRs Construct a test circuit of SCR using UJT triggering Identify different heat sinks used with SCRs. Construct a snubber circuit for protecting SCR use freewheeling diode to reduce back emf. Construct and test solid state relay. Construct a jig circuit to test DIAC Identify and test a TRIAC using multi meter Construct a simple dimmer circuit using TRIAC Identify and Test a UJT using multi meter Construct UJT based free running oscillator and change its frequency. MOSFET & IGBT: Identify MOSFET by its number Identify different heat sinks used with various power MOSFET devices. Construct MOSFET test circuit with a small load Identify IGBT by its number 14 Introduction to positive feedback and requisites of an oscillator, Study of Colpitts, Hartley, Crystal and RC oscillators. Types of multi vibrators and study of circuit diagrams Diode shunt clipper circuits and Clamping /limiting circuits and their applications. Schmitt trigger circuits Construction of FET, differentiate it with BJT. Purpose of Gate, Drain and source terminals and voltage / current relations between them, Impedances between various terminals. Interpret the main parameters of the FET. Suitability of FET amplifiers in measuring device applications. Working of power electronic components such as SCR, TRIAC, DIAC and UJT. Working of MOSFET, Power MOSFET and IGBT - their types, characteristics, switching speed, power ratings and protection. Differentiate FET with MOSFET, differentiate a Transistor with IGBT. 9 10 11 12 Construct IGBT test circuit with a small load Opto Electronics: Identify different types of LEDs Test LEDs using DC supply and measure voltage drop and current using multimeter Identify and test LDR, Identify photo voltaic cell Construct a circuit to test a photo voltaic cell Construct a circuit to switch a lamp load using photo diode Construct a circuit to switch a lamp load using photo transistor. Identify Opto coupler input and output terminals and measure the quantum of isolation between i/o terminals (Opto Transistor, TRIAC and SCR) and operate a Relay by connecting a switch Basic SMD (2,3,4 terminal components): Identification of 2,3,4 terminal SMD components De-solder the SMD components from the given PCB Solder the SMD components in the same PCB Check for cold continuity of PCB Identification of loose /dry solder, broken tracks on printed wired assemblies Basic Gates: Identify different Logic Gates (AND, OR, NAND, NOR, X-OR, X-NOR, NOT ICs) by the number printed on them and draw I/O pin-out numbers. Verify the truth tables of all Logic Gate ICs by connecting switches and LEDs. Construct and verify the truth table of all the gates using NAND and NOR gates Use digital IC tester to test the various digital ICs (TTL and CMOS) Combinational Circuits: Construct Half Adder circuit and verify the truth table. Construct Full adder and verify the truth table. Construct the Adder cum Subtractor and verify the result 15 Working and application of LED, IR LEDs, Photo diode ,photo transistor, its characteristics and application, optical sensor, opto-couplers, circuits with opto isolators, characteristics of LASER diodes Introduction to SMD technology Identification of 2,3,4 terminal SMD components, advantages of SMD components over conventional lead components Introduction to solder paste and machine. Soldering of SM assemblies - Reflow soldering Tips for selection of hardware, Inspection of SM. Introduction to Digital Electronics. Difference between analog and digital signals, Logic families and their comparison, Logic levels of TTL and CMOS. Number systems (Decimal, binary, octal, Hexadecimal) BCD code, ASCII code and code conversions. Logic Gates and their truth tables, propagation delay, power dissipation and noise immunity Combinational logic circuits such as Half Adder, Full adder, Parallel Binary adders, 2-bit and four bit full adders. Magnitude comparators. Half adder, full adder ICs and their applications for implementing arithmetic operations 13 14-15 16-17 Construct and Test a 2 to 4 Decoder Construct and Test a 4 to 2 Encoder Construct and Test a 4 to 1 Multiplexer Construct and Test a 1 to 4 De Multiplexer Flip Flops: Identify different Flip-Flop (ICs) by the number printed on them Construct and test four bit latch using 7475 . Verify the truth tables of Flip-Flop ICs (RS, D, T, JK, MSJK) by connecting switches and LEDs Electronic circuit simulation software Prepare simple digital and electronic circuits using the software Simulate and test the prepared digital and analog circuits Convert the prepared circuit into a layout diagram. Explore various troubleshooting and fault finding resources provided in the simulation software. Counter & shift Registers: Construct and test a four bit asynchronous binary counter using 7493. Construct and test 7493 as a modulus-12 counter. Construct and test a four bit Synchronous binary counter using 74163. Construct and test synchronous Decade counter. Construct and test an up/down synchronous decade counter using 74190 and monitor the output on LEDs. Identify and test common anode and common cathode seven segment LED display using multi meter Display the two digit count value on seven segment display using decoder/driver ICs. Construct a shift register using RS/D/JK flip flop and verify the result Construct and test four bit SIPO register Construct and test four bit PIPO register Construct and test bidirectional shift registers 16 Basic Binary Decoder and four bit binary decoders.. Concept of encoder and decoder, Need for multiplexing of data. 1:4 line Multiplexer /Demultiplexer. Introduction to Flip-Flop. S-R Latch, Gated S-R Latch, D- Latch. FlipFlop: Basic RS Flip Flop, edge triggered D Flip Flop, JK Flip Flop, T Flip Flop, Master-Slave flip flops and Timing diagrams, Basic flip flop applications like data storage , data transfer and frequency division. Study the library components available in the circuit simulation software. Various resources of the software. Basics of Counters, types of counters, two bit and three bit Asynchronous binary counters and decade counters with the timing diagrams. 3-bit Synchronous counters and synchronous decade counters. Types of seven segment display, BCD display, BCD to decimal decoder. BCD to 7 segment display circuits, Basics of Register, types and application of Registers. 18-21 Op – Amp & Timer 555 Applications: Use analog IC tester to test the various analog ICs Construction and testing of various OpAmp circuits Inverting, Non-inverting and Summing Amplifiers Construct and test Differentiator and Integrator Construct and test a zero crossing detector Construct and test Instrumentation amplifier Construct and test a Binary weighted and R-2R Ladder type Digital-to-Analog Converters. Construct and test Astable timer circuit using IC 555 Construct and test mono stable timer circuit using IC 555 Construct and test VCO (V to F Converter) using IC 555 Construct and test 555 timers as pulse width modulator. 17 Block diagram and Working of OpAmp, importance, Ideal characteristics, advantages and applications. Schematic diagram of 741, symbol, Non inverting voltage amplifier, inverting voltage amplifier, summing amplifier, Comparator, zero cross detector, differentiator, integrator and instrumentation amplifier, other popular Op-Amps. Block diagram of 555, functional description w.r.t. different configurations of 555 such as mono stable, Astable and VCO operations for various application SYLLABUS FOR WORKSHOP SCIENCE AND CALCULATION SEMESTER-II Week No 1-2 Workshop calculation & Sc. . Calculation of transistor currents and amplification factor(gain) 3-4 Gain dB calculation of voltage, current and power 5-6 Arithmetic and geometric progression, sum of n-terms, simple calculations Mensuration – Find the area of regular objects like triangle, rectangle, square and circle. Mensuration: volumes of cube, cuboid, sphere cylinder. 7-8 9 10 Calculation of frequency of LC and RC oscillator and multivibrator circuits Calculation of LED, IRLED and photo diode currents 11 Trigonometry ratios, identities 12 Problems on conversion of Decimal numbers to binary, octal, and Hexadecimal 13 Bit, byte, nibble, KB, MB ,GB 14-16 Addition and subtraction of Binary, Octal and Hexadecimal Numbers 17-18 Calculation of frequency division in flip-flops/counters 19-21 Inverting and non inverting amplifier gain calculations Time period and frequency calculation of Astable, monostable multivibrators using IC555 18 SYLLABUS FOR ENGINEERING DRAWING SEMESTER-II Week No Engineering Drawing 1 Single stage amplifiers, Multistage amplifiers 2-4 Class ‘A’, Class ‘B’, Push pull, Complimentary symmetry circuits 5-6 Crystal and RC Oscillators circuits, Multivibrators 7 Symbols for different wave shapes, Square, saw tooth, sine, triangular, Pulse. clipper and clamper circuits 8-9 UJT, FET, MOSFET, DIAC, TRIC, SCR, IGBT symbols and circuits of FET Amplifier, SCR using UJT triggering, snubber circuit, light dimmer circuit using TRIAC, UJT based free running oscillator Orthographic 3rd angle projection of very simple objects 10-11 12 LED, IRLED, photo diode, photo transistor, opto coupler symbols symbols of Logic gates 13 Half adder, full adder, multiplexer and de-multiplexer 14-16 Logic diagram and symbols of Flip flops 17-18 Logic diagram of 3- bit asynchronous, synchronous and decade counters 19-21 Op-Amp block diagram Inverting and non-inverting configuration, pin diagram of 555,741 Functional block diagram of Ic555 and Astable, Monostable circuits using IC555 19 A. Tools & Equipments for the trade of Electronics Mechanic for First and Second Semester TRAINEES TOOL KIT FOR 20 TRAINEES +1 INSTRUCTOR Sl No. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Names of the Items Connecting screwdriver 100 mm Neon tester 500 V. Screw driver set (set of 5 ) Insulated combination pliers 150 mm Insulated side cutting pliers 150 mm Long nose pliers 150 mm Soldering iron 25 W. 240 V. Electrician knife Tweezers 100mm Digital Multimeter (3 ½ digit) Soldering Iron Changeable bits 10 W De- soldering pump Quantity 10 Nos 6 Nos 10 Nos 6 Nos 8 Nos 6 Nos 10 Nos 6 Nos 10 Nos 10 Nos 6 Nos 10 Nos B. General Machinery Shop outfit Sl.No Name of the items 1. Steel rule 300mm 2. Steel measuring tape-3 m 3. Tools makers vice 100mm (clamp) 4. Tools maker vice 50mm (clamp) 5. Crimping tool (pliers) 6. Magneto spanner set 7. File flat 200mm bastard 8. File flat 200mm second cut 9. File flat 200mm smooth 10. 100mm flat pliers 11. 100mm round Nose pliers 12. Scriber straight 150mm 13. Hammer ball pen 0.5Kg 14. Allen key set (set of 9) 15. Tubular box spanner (set of 6Nos) 16. Magnifying lenses 75mm 17. Continuity tester 18. Hacksaw frame adjustable 19. Cold chisel 20mm 20. Scissors 200mm 21. Handsaw 450mm 22. Hand Drill Machine 23. First aid kit 24. Fire Extinguisher 25. Bench Vice 26. Dual DC regulated power supply 30-0-30 V, 2 Amps 20 Quantity 4 Nos 4 Nos 1 Nos 1 Nos 2 Nos 2 Nos 2 Nos 2 Nos 2Nos 4 Nos 4 Nos 2 Nos 1 No 1 No 1 set 2 Nos 6 Nos 2 Nos 1 No 1 No 1 No 2 Nos 1 No 2 Nos 1 No 4 Nos 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42 43 44 45 46 47. 48. 49 DC regulated variable power supply 0-24 V, 1Amp LCR meter (Digital) CRO Dual Trace 20 MHz (component testing facilities) Signal Generator, 0-100 KHz Battery Charger Analog multimeter 2 Nos Function generator (Triangular, square and sine wave) Or ELECTRONIC WORK BENCH Instead of sr no’s ( 26,27,29,31,34 ) Dimmer start 3 Amps Analog Component Trainer Op Amp trainer Digital IC Trainer Digital IC Tester Digital and Analog Bread Board Trainer Rheostats various values and ratings POWER ELECTRONICS TRAINER with at least 6 no’s of onboard applications Computers in the assembled form (including cabinet, motherboards, HDD, DVD, SMPS, Monitor, KB, Mouse, LAN card, Blu-Ray drive and player), MS Office education version. Laptops latest configuration Laser jet Printer INTERNET BROADBAND CONNECTION Electronic circuit simulation software with 6 user licenses Different types of electronic and electrical cables, connectors, sockets, terminations. Different types of Analog electronic components, digital ICs, power electronic components, general purpose PCBs, bread board, MCB, ELCB Crimping tools as necessary for performing terminations mentioned week no 17-21 of SEMSTER-1 2 Nos 1 No 2 Nos 2 Nos 1 No 4 Nos 2 Nos 2 Nos 4 Nos 3 Nos 4 Nos 1 No 6 Nos 2 Nos 4 No 4 Nos 1 No 1 No 1 No 1 No As required As required As required C.WORKSHOP FURNITURE: Sl.No 1 2 3 4 5 6 Name of the items Instructor’s table Instructor’s chair Metal Rack, 100cm x 150cm x 45cm Lockers with 16 drawers standard size Steel Almirah, 2.5 m x 1.20 m x 0.5 m Black board/white board 21 Quantity 1 No 2 Nos 4 Nos 2 Nos 2 Nos 1 No
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