Download Design And Analysis of an improved version of triangle-to

Design And Analysis of an improved
version of triangle-to-sine wave
conversion
CHAPTER 1
1.1
Introduction
1.2
Shaping Techniques
1.3
Trigonometric Functions Synthesis
CHAPTER 2
Bipolar Technique
2.1
Introduction
2.2
Analysis of the General Sine-Shaping Network
CHAPTER 3
Mosfet Technique
3.1
Introduction
3.2
Synthesis Principle and Analysis
CHAPTER 4
4.1 Transistor shape
Current source circuit
4.2 Circuit Analysis
CHAPTER 5
Improvement:
1-Triangle to Sine wave converter by using transistor
- Simulation for the old circuit Triangle-to-Sine wave conversion
by using spice technique (Microcap V6) .
•The old technique used the amplitude in mV.
• The result of this simulation has shown good agreement with the
provided lab-result.
Simulation circuit
2-Two different approach in developing triangle-toSine converter have been adopted as :a-Diode Shape technique
-The Simulation for this technique is carried out by using computer
program (Microcap V6) .
-In this technique the diode shape has been utilized(it is easy to built).
-The advantage of this approach is to eliminate the two transistor
which lead to the elimination two current source in old circuit .
-This technique doesn’t required DC source .
Simulation circuit
·By added mixer in diode shape technique Triangle-to-Sine wave
converter we can obtain Triangle AM modulator-to-Sine wave AM
modulator as shown
Simulation circuit
b -Seven-Segment Using 12 Transistor
·The Seven Segment Triangle-to-Sine wave converter has been
simulated by using spice technique
Simulation circuit
· The advantage of this proposed Triangle-to-Sine wave that
its ability to increase the operating voltage from 1.8-15v
· by added mixer in Seven Segment Triangle-to-Sine wave converter
we can obtain Triangle AM modulator-to-Sine wave AM modulator
as shown
Simulation circuit
Conclusion
 The importance of triangle to sine wave converters stem
from the fact that triangular waveforms are easier to generate.
 Triangular waveforms are generated from pulse (square
wave) generator by integrating the square wave.
 The BJT, which has the smallest error than any other
technique. Also, the angular range could be increased by one π
for each addition of the transistor.
 The MOSFET, which has the advantage that it can be
applied to synthesize any odd function.
 The nonlinear technique as a whole has the advantage that
we could get an offset output voltage which appears as a phase
shift associated with the output signal.
 For high frequency the techniques are not work good .
 In old Bipolar technique the amplitude should be small.
 The advantage of Seven Segment technique Triangle-to-Sine wave
that its ability to increase the operating voltage from1.8-15v.
Thank you for cooperation