Friday, 29 March 2013
Monday, 25 March 2013
Sunday, 24 March 2013
Saturday, 23 March 2013
Friday, 22 March 2013
PROPERTIES OF RL IMPEDANCE OR RC ADMITTANCE
1) Poles and zeros are alternating
2) Poles and zeros are simple and lie on the negative real
axis of the s-plane.
3)The critical frequency nearest to origin is a zero
4) The critical frequency farthest from origin is a pole
5)The residues of Y(s) at its poles are all negative and
real
6)...
Friday, 22 March 2013 0
Thursday, 21 March 2013
PROPERTIES OF RC IMPEDANCE OR RL ADMITTANCE
1)Poles and zeros are alternating
2) Poles and zeros are simple and lie on the negative real
axis of the s-plane.
3)The critical frequency nearest to origin is a pole which
indicates a capacitor for RC impedance
4) The critical frequency farthest from origin is a zero which...
Thursday, 21 March 2013 0
Tuesday, 19 March 2013
Switch
connected to +VM
Once
VM is connected, the capacitor starts charging linearly then the
output at the integrator decreases linearly. This linearly decreasing ramp is
fed to inverting terminal of the zero crossing detector. Since the input at non
inverting terminal is greater than inverting terminal, it produces a positive
going...
Tuesday, 19 March 2013 0
Sunday, 17 March 2013
1 INTRODUCTION TO SEMICONDUCTORS
2.BANDS,ELECTRON,HOLE
3.TYPES OF SEMICONDUCTORS
4.MASS ACTION LAW,MINORITY CARRIER CONCENTRATION
5.MOBILITY AND CONDUCTIVITY
6.CARRIER TRANSPORT PHENOMENUN
7.HALL EFFECT
8.EFFECT OF TEMPERATURE ON MOBILITY
9.CONTINUITY EQUATION
...
Sunday, 17 March 2013 0
TO READ THE SPECIFIC TOPIC CLICK ON THE LINK GIVEN BY THE SIDE OF EACH TOPIC
INTRODUCTION TO DVMs
DIGITAL READOUTS OF DVMs
TYPES OF DVMs
RAMP TYPE
DUAL SLOPE INTEGRATING TY...
IT IS ALSO CALLED SINGLE SLOPE TYPE DVM OR PULSE WIDTH TYPE
DVM
OPERATION
This DVM measures unknown voltage VM by measuring
the time taken by a linearly falling ramp voltage to fall from unknown voltage
level to zero volts
Ramp generator produces a decreasing OR increasing ramp
Input comparator generates starting pulse...
Saturday, 16 March 2013
The sinusoidal waveform of
figure 1 with its additional notation will now be used as a model in defining a
few basic terms. These terms, however, can be applied to any alternating waveform.
It...
Saturday, 16 March 2013 0
In 3 / 4 digit numerator
indicates maximum value and denominator indicates number of digits
Number of digits
Maximum value
9/10
0,1,2,3………9
9
1/2
0,1
1
3/4
0,1,2,3
3
Note
A full digit has decimal
point but ½ , ¾ … doesn’t have decimal point
Example
( 0 –...
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