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WEEK. NO. 27

  1. Reference Learning Outcome :-Plan and Interface the LCD, LED, DPM panels to various circuits and evaluate performance. (Mapped NOS: ELE/N8107)
  2. Duration :- Professional Skill 35 Hrs.; Professional Knowledge 05 Hrs.(for above learning out come)
TRADE THEORY (Professional Knowledge ) :- 
    • Different types of seven segment displays, decoders and driver ICs.
    • Concept of multiplexing and its advantages.
    • Block diagrams of 7106 and 7107 and their configuration for different measurements.
    • Use of DPM with seven segment display.
    • Principles of working of LCD.
    • Different sizes of LCDs.
    • Decoder/ driver ICs used with LCDs and their pin diagrams.
    • Use of DPM with LCD to display different voltage & current signals.
TRADE PRACTICAL (Professional Skills  With Indicative Hours) :- Job no. & Name of the Practical
  • Digital panel Meter
  • 205. Identify LED Display module and its decoder/driver ICs. (05 Hrs.)
  • 206. Display a word on a two line LED. (06 Hrs.)
  • 207. Measure/current flowing through a resistor and display it on LED Module. (06 Hrs.)
  • 208. Measure/current flowing through a sensor and display it on a LED module (DPM). (06 Hrs.)
  • 209. Identify LCD Display module and its decoder/driver ICs. (06 Hrs.)
  • 210. Measure/current flowing through a resistor and display it. (06 Hrs.)

WEEK. NO. 28, 29 & 30

  1. Reference Learning Outcome :-Detect the faults and troubleshoot SMPS, UPS and inverter. (Mapped NOS:ELE/N7202)
  2. Duration :- Professional Skill 120 Hrs.; Professional Knowledge 40 Hrs.(for above learning out come)
TRADE THEORY (Professional Knowledge ) :- 
    • Concept and block diagram of manual, automatic and servo voltage stabilizer, o/p voltage adjustment.
    • Voltage cut-off systems, relays used in stabilizer.
    • Block Diagram of different types of Switch mode power supplies and their working principles.
    • Inverter; principle of operation, block diagram, power rating, change over period.
    • Installation of inverters, protection circuits used in inverters.
    • Battery level, overload, over charging etc.
    • Various faults and its rectification in inverter.
    • Block diagram of DC-DC converters and their working principals.
TRADE PRACTICAL (Professional Skills  With Indicative Hours) :- Job no. & Name of the Practical
  • SMPS and Inverter
  • 211. Identify the components/devices and draw their corresponding symbols. (03 Hrs.)
  • 212. Dismantle the given stabilizer and find major sections/ ICs components. (06 Hrs.)
  • 213. List the defect and symptom in the faulty SMPS. (05 Hrs.)
  • 214. Measure / Monitor major test points of computer SMPS. (07 Hrs.)
  • 215. Troubleshoot the fault in the given SMPS unit. Rectify the defect and verify the output with load. Record your procedure followed for trouble shooting the defects. (08 Hrs.)
  • 216. Use SMPS used in TVs and PCs for Practice. (05 Hrs.)
  • 217. Install and test the SMPS in PC. (05 Hrs.)
  • 218. Install and test an inverter. (05 Hrs.)
  • 219. Troubleshoot the fault in the given inverter unit. Rectify the defects and verify the output with load. (08 Hrs.)
  • 220. Construct and test IC Based DC-DC converter for different voltages. (08 Hrs.)
  • 221. Construct and test a switching step down regulator using LM2576. (08 Hrs.)
  • 222. Construct and test a switching step up regulator using MC 34063. (08 Hrs.)

WEEK. NO. 31  &  32

  1. Reference Learning Outcome :-Detect the faults and troubleshoot SMPS, UPS and inverter. (Mapped NOS:ELE/N7202)
  2. Duration :- Professional Skill 120 Hrs.; Professional Knowledge 40 Hrs.(for above learning out come)
TRADE THEORY (Professional Knowledge ) :- 
    • Concept of Uninterrupted power supply.
    • Difference between Inverters and UPS.
    • Basic block diagram of UPS & operating principle.
    • Types of UPS : Off line UPS, On line UPS, Line interactive UPS & their comparison
    • UPS specifications. Load power factor & types of indications & protections
    • Installation of single phase & UPS.
TRADE PRACTICAL (Professional Skills  With Indicative Hours) :- Job no. & Name of the Practical
  • UPS
  • 223. Connect battery stack to the UPS. (07 Hrs.)
  • 224. Identify front panel control & indicators of UPS. (05 Hrs.)
  • 225. Connect Battery & load to UPS & test on battery mode. (06 Hrs.)
  • 226. Open top cover of a UPS; identify its isolator transformers, the UPS transformer and various circuit boards in UPS. (08 Hrs.)
  • 227. Identify the various test point and verify the voltages on these. (05 Hrs.)
  • 228. Identify various circuit boards in UPS and monitor voltages at various test points. (05 Hrs.)
  • 229. Perform load test to measure backup time. (08 Hrs.)

WEEK. NO. 33

  1. Reference Learning Outcome :- Identify, Test and verify characteristics of Photovoltaic cells, Modules, Batteries and Charge controllers. Install a solar panel, execute testing and evaluate performance by connecting the panel to the inverter. (Mapped NOS: ELE/N5902)
  2. Duration :- Professional Skill 60 Hrs.; Professional Knowledge 15 Hrs. (for above learning out come)
TRADE THEORY (Professional Knowledge ) :- 
    • Semiconductor properties and types. P-type and N-type semiconductors, PN junction, etc.
    • Conversion of solar radiation to electricity.
    • Main materials used to develop solar cells (Silicon, Cadmium tellurides, etc.)
    • Light sensitive properties of PN junction.
    • Difference of photo electric and photo voltaic effects of a PN junction.
    • PV cell characteristics, I–V curve, effects of temperature.
    • Photovoltaic effect.
    • Photo voltaic module: minimal functional specification, cells per module, max watts per module, maximum voltage at max power, maximum current at max power.
TRADE PRACTICAL (Professional Skills  With Indicative Hours) :- Job no. & Name of the Practical
  • 1. Identify and Test an LED and a Photodiode to verify the photo emitting effect and light sensitivity. (04 hrs)
  • 2. Test a Photo voltaic cell for different illumination levels and verify photovoltaic property. (04 hrs)
  • 3. Plot I-V curve for photovoltaic cell based on the illumination at constant temperature. (04hrs)
  • 4. Plot I-V curve for photovoltaic cell based on temperature at constant illumination. (04 hrs)
  • 5. Test photovoltaic cell in sunlight at various angles of inclination and direction. (04 hrs)
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