electronics bifocal

XII Standard Bifocal Vocational Electronics Class 12

Textbook for XII Standard Bifocal Vocational Electronics under the discipline of Maharashtra State Board of Secondary & Higher Secondary Education


Applied Electronics Chapter / Electronics Class 12 Bifocal Paper 1

  1. Instruments
    2. 1.1 Introduction 
    3. 1.2 Cathode Ray Tube 
    4. 1.3 Deflection Systems in CRT 
    5. 1.4 Properties of CRT screen 
    6. 1.5 Front panel controls of CRO 
    7. 1.6 Block diagram of CRO 
    8. 1.7 Internal circuit of TBG 
    9. 1.8 Applications of CRO 
    10. 1.9 Function Generator 
    11. 1.10 Digital Multimeter 
  2. DC Power supplies
    2. 2.1 Introduction 
    3. 2.2 Block diagram of power supply 
    4. 2.3 Rectifier circuits
    5. 2.4 Filter Circuits 
    6. 2.5 Concepts of Voltage Regulator
    7. 2.6 Shunt Zener Regulator 
    8. 2.7 3-terminal voltage regulator 
    9. 2.8 Switch Mode Power Supply (SMPS) 
  3. Transducers
    2. 3.1 Introduction 
    3. 3.2 Active & Passive Transducers 
    4. 3.3 Selection of transducer 
    5. 3.4 Thermister 
    6. 3.5 Light Dependant Resistor (LDR) 
    7. 3.6 Capacitive Transducer 
    8. 3.7 Linear variable differential transformer (LVDT) 
    9. 3.8 Piezo Crystal Transducer 
    10. 3.9 Loudspeaker (Speaker) 
    11. 3.10 OptoCoupler (Opto Isolator)
    12. 3.11 Gas sensor 
  4. Operational amplifiers
    2. 4.1 Introduction 
    3. 4.2 Fundamentals of amplifier 
    4. 4.3 Differential amplifier 
    5. 4.4 Operational Amplifier
    6. 4.5 Linear Applications of Opamp 
  5. Modern electronics communication
    2. 5.1 Introduction 
    3. 5.2 Elements of communication system 
    4. 5.3 Classification of communication system 
    5. 5.4 Concept of modulation 
    6. 5.5 The process of Amplitude modulation (AM) 
    7. 5.6 Frequency modulation (FM)
    8. 5.7 Satellite communication 
    9. 5.8 Digital Data communication 
    10. 5.9 Networks in Communication
    11. 5.10 Optical fiber communication 
    12. 5.11 Facsimile (Fax) 
    13. 5.12 Cellular mobile radio system 
    14. 5.13 Concept of RADAR 
  6. Study of integrated circuits
    2. 6.1 Introduction 
    3. 6.2 Types of timer 
    4. 6.3 IC 555 Timer 
    5. 6.4 Applications of IC 555 
    6. 6.5 IC 741 operational amplifier
    7. 6.6 Applications of IC741 opamp 
    8. 6.7 3-terminal voltage regulator


Textbook for XII Standard Bifocal Vocational Digital Electronics 

Digital Electronics Notes /Chapter Electronics Class 12 Bifocal Paper 2

  1. Number systems
    1. 1.1 Introduction 
    2. 1.2 Binary number system 
    3. 1.3 Hexadecimal number system 
    4. 1.4 Concept of codes 
    5. 1.5 Binary Arithmetic 
    6. 1.6 Subtraction using 1’s complement method 
    7. 1.7 Subtraction using 2’s complement method 
  2. Logic gates
    2. 2.1 Basic Points (Important Topic) 
    3. 2.2 Boolean Algebra 
    4. 2.3 De Morgan’s Theorems 
    5. 2.4 Basic gates 
    6. 2.5 Logic Gates at a Glance 
    7. 2.6 NAND Gate as Universal Building Block 
    8. 2.7 NOR Gate as Universal Building Block 
    9. 2.8 Odd/Even Parity 
    10. 2.9 Basic applications of Logic Gates 
    11. 2.10 The 4-bit Binary Adder 
  3. Logic families
    2. 3.1 Introduction 
    3. 3.2 Classification of TTL & CMOS 
    4. 3.3 Characteristics of ICs 
    5. 3.4 Voltage & current Parameters 
    6. 3.5 TTL Technology
    7. 3.6 CMOS Technology 
    8. 3.7 Comparison of TTL & CMOS Families 
  4. Combinational logic circuits
    2. 4.1 Introduction 
    3. 4.2 Multiplexer 
    4. 4.3 DeMultiplexer 
    5. 4.4 Encoder 
    6. 4.5 Decoder 
  5. Flip flops, Registers & Counters
    2. 5.1 Introduction
    3. 5.2 Basic terminologies (Conceptual Topic)
    4. 5.3 Flip Flop 
    5. 5.4 Registers 
    6. 5.5 Counters 
  6. Analog to digital and digital to analog converters
    2. 6.1 Introduction
    3. 6.2 Need of AD & DA Conversion
    4. 6.3 Weighted Resistor DAC 
    5. 6.4 The R-2R Ladder DAC 
    6. 6.5 Analog to Digital Converters (ADC)
  7. Computer fundamentals
    2. 7.1 Introduction 
    3. 7.2 Block diagram of a computer
    4. 7.3 Types of memories 
    5. 7.4 Specifications of PC


    6. Paper-1, Applied Electronics

      1. Instruments – 15% – this chapter is very important
      2. DC Power Supplies – 20% – this chapter will be helpful for understanding concepts in Chapter-4
      3. Operational Amplifiers – 25% – extremely important chapter.

      Paper-2, Digital Electronics

      1. Number systems – 15%
      2. Logic Gates – 15% –
      3. Combinational Logic Circuits – 20% 
      4. Flip Flops – 20% – RS FF