# Analog Circuit Design using PSpice

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```					               OBJECTIVE

Learning Analog
Learning to use
Designing by
building application
circuits and verifying
PSpice for schematics
expected outputs
and simulation
through simulations

By: HEMANSHU ABBEY
It is the main
PSpice is a PC                      will be used for
engine that is
version of                        PSpice analysis.
used to perform
SPICE                                 It is a
the circuit
(Simulated                         schematic entry
analysis, verify
Program with                          program to
circuit designs
Integrated                           perform the
and to predict
Circuit                             necessary
the circuit
Emphasis)                          conversion into
behaviour.
a PSpice netlist.
•   NETWORK THEOREMS
•   DC/AC ANALYSIS OF CIRCUITS
CIRCUIT THEORY     •   RC,RL,RLC CIRCUITS & RESONANCE
•   TRANSFORMER DESIGN

•   DIODE,BJT,JFET,MOSFET CIRCUITS
•   BJT/JFET AMPLIFIER DESIGN
AMPLIFIER DESIGN   •   POWER AMPLIFIER DESIGIN
•   BODE PLOTS/FREQUENCY RESPONSE OF
BJT/JFET AMPLIFIERS

• OPERATIONAL AMPLIFIERS
• ANALOG FILTER DESIGNING
APPLICATION      • VOLTAGE REGULATORS & POWER SUPPLY
CIRCUITS          CIRCUIT DESIGING
• OSCILLATOR CIRCUIT DESIGNING
• 555 TIMER APPLICATIONS
DESIGN 1           DESIGN 2            DESIGN 3

GENERATION OF     COMMON EMITTER         WIEN BRIDGE
SINUSOIDAL WAVE    AMPLIFIER DESIGN   OSCILLATOR THEORY &
FROM A TRIANGULAR                             DESIGN
WAVE USING DIODES
DESIGN 1
DESIGN CALCULATIONS:
∆VOUT/ ∆ VIN = R1/(R1 +Rin) = (7-5)/(10-5) = 2/5
So Let R1 =2K, Rin = 3K.
DESIGN 2

Voltage Divider Biasing
used for better stability.

Check whether Transistor
operates in linear region
and that Q point is proper

RE1 influences the AC
voltage gain and RE1+RE2
controls the DC bias.

C1 and C2 are used as
Coupling Capacitors and
CE as bypass capacitor. CE
value formula used here
Take β = 180

2.64mA           7.33K           4V                14.69uA

4.08V

 Re or the AC emitter resistance is given by 26mV/IE where IE
as calculated earlier as approx 2.64mA. So Re = 9.84Ω

+ Re) = 2.95.You can Increase the gain by choosing a
smaller RE1 such as 300 ohms
DESIGN 3

     A fundamental part of the Wien-bridge oscillator is a lead-lag circuit.
R and C series structure together forms the lead portion of the
circuit; and the parallel arrangement forms the lag circuit.
      Thus the circuit can be modelled as a High Pass Filter connected to
a Low Pass Filter producing a very selective 2nd order frequency
dependant Band Pass Filter with a high Q factor at the selected
frequency.
Minimize the time to learn PSpice and
Schematic Capture

A learning experience with hands-
on, interactive training.

Knowledge of PSpice and its
application in Analog Design will
profile.
40 Hrs of
Extensive
Analog Design
Classes and
Lab-work
Computer CD
comprising of User
A book on Analog manuals, University
using PSpice by  topics, Free
Design       Hemanshu Abbey simulation software
Assignment
handouts
For Registration
Contact CETPA

Batches in Roorkee &
Greater Noida

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