Hello puys,
I am posting some of the imp questions subject wise:
Following r some imp topics:
Semiconductor devices and circuits:
Resistance, inductance(dc short, ac open), capacitance (ac short , dc open)
Diodes:
types& definitions: p-n, zener(zener breakdown, voltage regulator),tunnel (tunneling effect),varactor,
Impatt,Trapatt, gunn, pin;
Transistors:
two types 1. Based on minority carrier(BJT:npn,pnp) 2. based on FET principle(IGFET,JFET,MOSFET,MESFET);
Amplifiers:
types:LNA,Power amp,feedback,balanced,distributed amp
Active state (for CE conf):Base if FB and collector is RB:
Saturation:Both bas and collector are FB
Cut-off:Both bas and collector are RB
Untuned Amp:Class A,B,AB,C
Oscillator:total phase shift at input is 0 or multiples of 2pi.
MPMC:
MP are memoryless.General purpose processors
MC have inbuilt memory and IO ports
to interface MP with ports 825 is used
MP types: 8085 (8-data, 16 address);8086(16data,16 address); 80186(16 data, 20 adddress); 80286(16 data, 24 address);80386(16 data, 32 address);80486 (32 data, 32 address); pentium (64 data, 32 address,Pipelining,More segmentations&memory; banks);Pentium Pro(64 data,36 address)
MC: 4K rom, 128 bytes ram,2 timers,4 io ports,1 serial port, 8 bit cpu, 16 address lines, 40 pins
Control systems:
Definitions:
System:A no of elements are connected in a sequence to perform a specific function is called a system.
Control system: system in which o/p is controlled by i/p.
Open loop system(o/p does not change automatically)& closed loop system (output changes automatically)
Stability:BIBO condition :i/p=0 then o/p tends to 0.
Limtedly stable,absolutely stable and conditionally stable:
Three ways to check stability: Routh-herwitz criteria, nyquist criteria, root locus method
PS: Will be posting topics of other subjects soon.
Cheers,
Vivek