Semiconductor Devices — Class 12 Maharashtra HSC Physics revision notes
A 7-page visual revision sheet for Semiconductor Devices, written for Class 12 Maharashtra HSC Physics. Formulas, diagrams and the traps that cost marks, laid out to be read the night before rather than the term before. Free, and it opens inside CapCompass.
What this Semiconductor Devices sheet covers
- rectifier
- rectification
- Why rectify at all
- Half wave vs full wave rectifier
- Half wave
- Full wave
- ripple factor
- ripple factor, a measure of leftover AC in the DC output
- filter circuit
- capacitor filter
- Filter circuits
- zener diode
- zener breakdown
- junction breakdown
- Zener as a voltage regulator
- series resistor limits Zener current, V(in) must exceed V_Z
- load voltage always equals the Zener voltage
- current division at the junction
- maximum power rating sets the maximum Zener current
- photodiode
- solar cell
- photovoltaic cell
- led
- light emitting diode
- Light emitting diode (LED)
- Four special-purpose junctions, one summary
- Reverse bias devices
- No-bias and forward-bias devices
- Emitter
- Base
- Collector
- bipolar junction transistor
- bjt
- Bipolar junction transistor (BJT)
- Current relations and gain
- Kirchhoff's current law at the base node
- DC current gain, common emitter
- DC current gain, common base
- the two gains, related
- transistor configuration
- common emitter
- common base
- common collector
- The three transistor configurations
- Common emitter (CE)
- Common base / collector
- transistor amplifier
- voltage gain
- current gain
- The CE amplifier: gain formulas
- input and output dynamic resistances
- AC current gain
- voltage gain, load resistance R_L
- power gain (magnitude)
- analog signal
- digital signal
- Analog vs digital signals
- The five basic gates, Boolean expressions
- NOT (inverter), one input
- AND, logical multiplication
- OR, logical addition
- NAND (NOT-AND), NOR (NOT-OR)
- Truth tables, side by side
- AND vs OR
- NAND vs NOR
- exclusive or
- xor gate
- Exclusive-OR (X-OR) gate
- Symbols
- Traps that cost marks
- Tricks that save time
How CapCompass uses this sheet
These notes are not a standalone PDF. CapCompass plans Physics chapter by chapter against your real exam dates and free hours, and when the plan reaches Semiconductor Devices the sheet opens inside the study block itself — at the page covering the sub-topic that block is on, with the timer still running. Revision arrives at the moment the plan says revise, instead of having to be gone looking for.
More Physics Class 12 revision notes
- AC Circuits
- Current Electricity
- Dual Nature of Radiation and Matter
- Electromagnetic Induction
- Electrostatics
- Kinetic Theory of Gases and Radiation
- Magnetic Fields due to Electric Current
- Magnetic Materials
- Mechanical Properties of Fluids
- Oscillations
- Rotational Dynamics
- Structure of Atoms and Nuclei
- Superposition of Waves
- Thermodynamics
- Wave Optics