"An investment in knowledge pays the best interest"
ECAD Syllabus (KJSCE 2014) and examination scheme
Lecture 01 dated 10-01-2019 :
Topics Covered : Introduction to Frequency response: basic concepts, its objectives, examples for high speed circuits, time and frequency domain behavior for simple RC circuit, need for frequency response.
Module or sub-module covered : Developed motivation for studying frequency response
Topics Covered : Introduction to Frequency response: basic concepts, its objectives, examples for high speed circuits, time and frequency domain behavior for simple RC circuit, need for frequency response.
Module or sub-module covered : Developed motivation for studying frequency response
ecad_01.pdf | |
File Size: | 969 kb |
File Type: |
Lecture 02 dated 11-01-2019
Topics Covered : Circuit Theory concepts( required as prerequisites for the topic of Frequency response), Our 1st Frequency response of a Simple RC circuit ( Simple but intuitive), steps to compute frequency response, definition of bandwidth. LT Spice simulation for a simple RC circuit.
Module or sub-module covered : Covered Pre-requisites topics required for covering frequency response
ecad_02.pdf | |
File Size: | 1048 kb |
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Video lecture 1.1 ( Contents for Lecture 1 and 2)
For those students who have missed ECAD lecture 1 and 2)
Henceforth the SIMULATIONS circuits we simulate in class live, it's images will be shared from 14/1/2019 on-wards
Simulation of various circuits were carried out in LT Spice simulation tool
Students are encouraged to use LT Spice
Simulation of various circuits were carried out in LT Spice simulation tool
Students are encouraged to use LT Spice
SIMULATIONS related to lecture 02 are below : 02.01 to 02.02 ( Total 2 images)
SIMULATION 02.01: Simple RC circuit: high pass response
SIMULATION 02.01: Frequency response of Simple RC circuit: high pass response
Lecture 03 dated 12-01-2019
Topics Covered :Review of Lecture 2, Simple RC circuit frequency response revisited and its quick conclusion, Poles and Zeros, Bode's Rules ( helps in drawing approximate frequency response), Logarithms, Decibels and simple numerical on it, General frequency considerations(The table) , Low frequency analysis ( using simple RC circuit) along with detailed magnitude response and LT Spice simulations for the same
Module or sub-module coverage :Module 1.1 and Pre-requisites topics required for covering frequency response
Topics Covered :Review of Lecture 2, Simple RC circuit frequency response revisited and its quick conclusion, Poles and Zeros, Bode's Rules ( helps in drawing approximate frequency response), Logarithms, Decibels and simple numerical on it, General frequency considerations(The table) , Low frequency analysis ( using simple RC circuit) along with detailed magnitude response and LT Spice simulations for the same
Module or sub-module coverage :Module 1.1 and Pre-requisites topics required for covering frequency response
ecad_03.pdf | |
File Size: | 3151 kb |
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SIMULATIONS related to lecture 03 are below : 03.01 to 03.02 ( Total 2 images)
SIMULATION 03.01: Simple RC circuit: Low pass response
SIMULATION 03.02: Frequency response of Simple RC circuit: Low pass response
Lecture 04 dated 14-01-2019
Topics Covered : Low frequency response of CE BJT amplifier: Overview of coupling and bypass capacitor, importance of DC biasing in amplifiers, concept of Q point revised, CE amplifier gives 180 degrees out of phase amplified output: reason Justified, review of various bjt models ( re, hybrid- pi, and h parameter), AC( Mid- frequency) equivalent circuit for CE amplifier, Low frequency AC equivalent circuit with hybrid pi model for CE amplifier
Module or sub-module coverage :Module 1.2
Topics Covered : Low frequency response of CE BJT amplifier: Overview of coupling and bypass capacitor, importance of DC biasing in amplifiers, concept of Q point revised, CE amplifier gives 180 degrees out of phase amplified output: reason Justified, review of various bjt models ( re, hybrid- pi, and h parameter), AC( Mid- frequency) equivalent circuit for CE amplifier, Low frequency AC equivalent circuit with hybrid pi model for CE amplifier
Module or sub-module coverage :Module 1.2
ecad_04.pdf | |
File Size: | 844 kb |
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Lecture 05 dated 15-01-2019
Topics Covered : Low frequency response of CE BJT amplifier: Effect of coupling capacitors ( CC1, CC2) and bypass capacitors (CE) on frequency response of CE amplifier, Numerical 01 based on Low frequency determination of CE amplifier.
Module or sub-module coverage :Module 1.2
ecad_05.pdf | |
File Size: | 2152 kb |
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Image related to lecture 05 (numerical 01) is given below
Lecture 06 dated 16-01-2019
Topics Covered : Determination of mid band gain for Numerical 01 based on Low frequency determination of CE amplifier and plotting of its frequency response, LT Spice verification of mid-band gain and lower cut-off frequency via simulations w.r.t Numerical 01
Numerical 02 based on Low frequency determination of CE amplifier without CE ( determination of mid-band gain and lower cut-off frequency)
Module or sub-module coverage :Module 1.2
ecad_06.pdf | |
File Size: | 2061 kb |
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SIMULATIONS related to lecture 06 are below : 06.01 to 06.02 ( Total 10 images)
SIMULATION 06.01: Circuit for Numerical 01: Complete low frequency response
SIMULATION 06.02: Complete Low frequency response for Numerical 01
SIMULATION 06.03: Circuit for Numerical 01: Effect of CC1 alone on the low frequency response
SIMULATION 06.04: Effect of CC1 alone on the low frequency response w.r.t numerical 01
SIMULATION 06.05: Circuit for Numerical 01: Effect of CC2 alone on the low frequency response
SIMULATION 06.06: Effect of CC2 alone on the low frequency response w.r.t numerical 01
SIMULATION 06.07: Circuit for Numerical 01: Effect of CE alone on the low frequency response
SIMULATION 06.08: Effect of CE alone on the low frequency response w.r.t numerical 01
In lecture 6, w.r.t numerical 02, we have written one expression directly
i.e Vo / Vi = - RC / ( 1/gm) + RE )
Kindly find the video showing the origin of this expression
Start video from 43 minutes and watch it till 60 minutes
i.e Vo / Vi = - RC / ( 1/gm) + RE )
Kindly find the video showing the origin of this expression
Start video from 43 minutes and watch it till 60 minutes
Solve Numerical 03 on your own !!!
numerical_03.pdf | |
File Size: | 1155 kb |
File Type: |
Results for Numerical 03:
ICQ = 3.49 mA , r_pi = 744.98 ohms , gm = 134.23 mA/V
FL_CC1 = 127.95Hz FL_CC2 = 20.67Hz FL_CE = 1909.99 Hz
FL = 1909.99 Hz , Av mid (with Rsig) = - 146.98 , | Av mid (with Rsig) | = 43.34 dB
Announcement 1: updated on 17/01/2018
Kindly note that ECAD lecture on 18/01/2018 will start from 9:30 am onwards and will continue till 11:30 am
This extra one hour is for compensation for holidays and lectures lost during Skream and also keeping in mind the vast syllabus of ECAD
Kindly complete numerical 03 in your notebooks, a routine check of notebooks might take place in class.
Kindly carry calculators every day, and try to do all calculations on tour own always.
Lecture 07,08 dated 18-01-2019
Topics Covered : Numerical 05: Low frequency response for a CC amplifier, Low frequency response of Common Source JFET amplifier, i.e determination of F_L CC1 , F_LCC2 and F_LCS. Numerical 05 completed up to determination of FL
Module or sub-module coverage :Module 1.2
ecad_07-08.pdf | |
File Size: | 3745 kb |
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Numerical 06
numerical_06.pdf | |
File Size: | 1445 kb |
File Type: |
Lecture 09 dated 21-01-2019
Topics Covered : Mid-band gain determination of Numerical 05 and its frequency response plot, Low frequency response of MOSFET Amplifier, Numerical 07 based on determination of FL and mid-band gain for D-MOSFET common source amplifier.
Module or sub-module coverage :Module 1.2
Topics Covered : Mid-band gain determination of Numerical 05 and its frequency response plot, Low frequency response of MOSFET Amplifier, Numerical 07 based on determination of FL and mid-band gain for D-MOSFET common source amplifier.
Module or sub-module coverage :Module 1.2
ecad_09.pdf | |
File Size: | 1481 kb |
File Type: |
Lecture 10 dated 22-01-2019
Topics Covered : Enhancement- MOSFET basics, Numerical 08 based on determination of FL and mid-band gain for an E-MOSFET amplifier circuit, Numerical 09 only circuit diagram
Module or sub-module coverage :Module 1.2
Topics Covered : Enhancement- MOSFET basics, Numerical 08 based on determination of FL and mid-band gain for an E-MOSFET amplifier circuit, Numerical 09 only circuit diagram
Module or sub-module coverage :Module 1.2
ecad_10.pdf | |
File Size: | 1951 kb |
File Type: |
Numerical 09
numerical_09.pdf | |
File Size: | 1381 kb |
File Type: |
Lecture 11 dated 23-01-2019
Topics Covered : Effect of Load capacitance on frequency response of BJT and FET amplifier, High frequency model of bipolar transistor
Module or sub-module coverage :Module 1.2 .... completed, Module 1.3 .... started
Topics Covered : Effect of Load capacitance on frequency response of BJT and FET amplifier, High frequency model of bipolar transistor
Module or sub-module coverage :Module 1.2 .... completed, Module 1.3 .... started
ecad_11.pdf | |
File Size: | 2260 kb |
File Type: |
In lecture 11, topic of high frequency model for a bipolar transistor was discussed.
Kindly find the video regarding the above topic
Start video from 38 minutes and watch it till the end.
Lecture 12 dated 25-01-2019
Topics Covered: Revision of high frequency model for a bipolar transistor, Miller theorem (miller effect), Miller capacitance, High frequency response of a BJT amplifier, Numerical 10 and LT Spice simulation of circuit in numerical 10 and its verification of results
Module or sub-module covered: Module 1.3
Topics Covered: Revision of high frequency model for a bipolar transistor, Miller theorem (miller effect), Miller capacitance, High frequency response of a BJT amplifier, Numerical 10 and LT Spice simulation of circuit in numerical 10 and its verification of results
Module or sub-module covered: Module 1.3
ecad_12.pdf | |
File Size: | 2936 kb |
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SIMULATIONS related to lecture 12 are below : 12.01 to 12.02 ( Total 02 images)
SIMULATION 12.01: High frequency response w.r.t numerical 10
SIMULATION 12.02: Complete Frequency response w.r.t numerical 10
Lecture 13 dated 28-01-2019
Topics Covered: Analysis of High frequency response of JFET amplifier, Numerical 11 based on high frequency response of JFET amplifier, Numerical 12 based on high frequency response of MOSFET amplifier. Need for Multi-stage amplifier, its types and types of coupling scheme, RC-coupling and Direct coupling explanation with examples.
Self Study Topics : High frequency model for MOSFETs, Unity gain bandwidth product and its derivation.
Module or sub-module covered: Module 1.3 and Module 2.1
ecad_13.pdf | |
File Size: | 4583 kb |
File Type: |
SIMULATIONS related to lecture 13 are below : 13.01 to 13.02 ( Total 02 images)
SIMULATION 13.01: E-MOSFET circuit w.r.t numerical 12
SIMULATION 13.02: High frequency response of E-MOSFET w.r.t numerical 12
Lecture 14 dated 29-01-2019
Topics Covered: Analysis of two stage CE-CE cascaded RC coupled amplifier, Numerical 13 based on CE-CE cascaded RC coupled amplifier, Analysis of two stage CS-CS cascaded RC coupled amplifier
Module or sub-module covered: Module 2.1
ecad_14.pdf | |
File Size: | 1713 kb |
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Lecture 15 dated 30-01-2019
Topics Covered: Numerical 14 based on two stage CS-CS cascaded RC coupled amplifier, Numerical 15 based on two stage CS-CE cascaded RC coupled amplifier
Self Study Topics : Analysis of two stage CS-CE cascaded RC coupled amplifier
Module or sub-module covered: Module 2.1
ecad_15.pdf | |
File Size: | 2019 kb |
File Type: |
Lecture 16 dated 01-02-2019
Topics Covered: Cascode amplifier BJT based ( Directly coupled CE-CB amplifier): Its need, DC analysis, AC analysis, derivation for voltage and current gain, Numerical 16 based on CE-CB Cascode amplifier, Superiority of Cascode over Cascade w.r.t bandwidth
Module or sub-module covered:Module 2.1
ecad_16.pdf | |
File Size: | 2415 kb |
File Type: |
Lecture 17 dated 05-02-2019
Topics Covered: Numerical 17 based on BJT CE-CB Cascode amplifier, Cascode amplifier MOSFET based ( Directly coupled CS-CG amplifier): Its need, DC analysis, AC analysis, derivation for voltage.
Module or sub-module covered:Module 2.1
ecad_17.pdf | |
File Size: | 1731 kb |
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SIMULATIONS related to lecture 17 are below : 17.01 to 17.03 ( Total 03 images)
SIMULATION 17.01: Cascode (CE-CB) amplifier w.r.t numerical 17
SIMULATION 17.02: Input-output waveforms indicating the Gain of CE stage (Av1) in a Cascode amplifier w.r.t numerical 17
Calculated gain Av1 = -0.9949 Observed gain from waveforms: Av1 = -0.99265
SIMULATION 17.03: Input-output waveforms indicating the Gain of CB stage (Av2) in a Cascode amplifier w.r.t numerical 17
Calculated gain Av2 = 45.98 Observed gain from waveforms: Av2 = 41.478
Calculated gain Av2 = 45.98 Observed gain from waveforms: Av2 = 41.478
Lecture 18 dated 06-02-2019
Topics Covered: Numerical 18 based on MOSFET based ( Directly coupled CS-CG amplifier), concept of Darlington pair, DC Analysis of Emitter coupled darlington amplifier
Module or sub-module covered:Module 2.1
ecad_18.pdf | |
File Size: | 1614 kb |
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SIMULATIONS related to lecture 18 are below : 18.01 to 18.02 ( Total 02 images)
SIMULATION 18.01: Cascode (CS-CG) amplifier w.r.t numerical 18
SIMULATION 18.01: Cascode (CS-CG) amplifier w.r.t numerical 18
SIMULATION 18.02: Input-output waveforms indicating the Gain of CS stage (Av1) and CB stage (Av2) in a Cascode amplifier w.r.t numerical 18
Calculated gain Av1 = -1 Observed gain from waveforms: Av1 = -0.996
Calculated gain Av2 = 2.89 Observed gain from waveforms: Av2 = 2.89
Lecture 19 dated 11-02-2019
Topics Covered: AC Analysis of Darlington emitter follower amplifier, Numerical 19 based on Darlington emitter follower circuit, Numerical 20 based on BJT-BJT Directly coupled amplifier
Topics not covered: AC analysis of numerical 19 and 20
Module or sub-module covered:Module 2.1
Topics Covered: AC Analysis of Darlington emitter follower amplifier, Numerical 19 based on Darlington emitter follower circuit, Numerical 20 based on BJT-BJT Directly coupled amplifier
Topics not covered: AC analysis of numerical 19 and 20
Module or sub-module covered:Module 2.1
ecad_19.pdf | |
File Size: | 3726 kb |
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numerical_21.pdf | |
File Size: | 1396 kb |
File Type: |
Kindly attempt numerical 21, leftover AC analysis of numerical 19 and 20 in your note books.
Lecture 20 dated 12-02-2019
Topics Covered: Design 01 based on CE-CE amplifier
Module or sub-module covered:Module 2.2
Topics Covered: Design 01 based on CE-CE amplifier
Module or sub-module covered:Module 2.2
ecad_20.pdf | |
File Size: | 2770 kb |
File Type: |
Lecture 21 dated 13-02-2019
Topics Covered: Design 02 based on CS-CS amplifier
Module or sub-module covered:Module 2.2
ecad_21.pdf | |
File Size: | 1990 kb |
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Lecture 22 dated 15-02-2019
Topics Covered: Design 03 based on CS-CE amplifier
Module or sub-module covered: Module 2.2
ecad_22.pdf | |
File Size: | 2215 kb |
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Lecture 23 dated 18-02-2019
Topics Covered: Terminology w.r.t Differential amplifier (i.e. Vd, Vcm, Ad, Acm, CMRR), Motivation for differential amplifier.
Module or sub-module covered: Module 6.1
Lecture 23 dated 18-02-2019
Topics Covered: Terminology w.r.t Differential amplifier (i.e. Vd, Vcm, Ad, Acm, CMRR), Motivation for differential amplifier.
Module or sub-module covered: Module 6.1
ecad_23.pdf | |
File Size: | 2239 kb |
File Type: |
In lecture 23, topic of motivation for Differential amplifier was discussed.
Kindly find the video regarding the above topic
Start video from 13 minutes and watch it till 41 minutes.
Kindly find the video regarding the above topic
Start video from 13 minutes and watch it till 41 minutes.
In lecture 23, topic of motivation for Differential amplifier was discussed.
Kindly find the video regarding the above topic
Start video from beginning and watch it till the end.
Lecture 24 dated 20-02-2019
Topics Covered: DC Transfer characteristics of BJT differential amplifier.
Module or sub-module covered: Module 6.1
ecad_24.pdf | |
File Size: | 969 kb |
File Type: |
Lecture 25 dated 25-02-2019
Topics Covered: Introduction to feedback, examples of negative feedback, general negative feedback system, and closed loop transfer function
Module or sub-module covered: Module 3.1
Lecture 25 dated 25-02-2019
Topics Covered: Introduction to feedback, examples of negative feedback, general negative feedback system, and closed loop transfer function
Module or sub-module covered: Module 3.1
Lecture 26 dated 26-02-2019
Topics Covered: Error signal expression of negative feedback system, Golden rule, Loop gain, important property of negative feedback, concepts of feedback systems, Factors that causes open loop gain to vary, example of feedback circuit.
Module or sub-module covered: Module 3.1
Lecture 26 dated 26-02-2019
Topics Covered: Error signal expression of negative feedback system, Golden rule, Loop gain, important property of negative feedback, concepts of feedback systems, Factors that causes open loop gain to vary, example of feedback circuit.
Module or sub-module covered: Module 3.1
Lecture 27 dated 27-02-2019
Topics Covered: Properties of negative feedback, Gain Desensitization, Numerical 22 and 23, Bandwidth Extension, Numerical 24, Modification of Input and Output impedance, Higher Linearity.
Module or sub-module covered: Module 3.1
ECAD Mid-term Test 1 Solution
mid_term_1_solution.pdf | |
File Size: | 2372 kb |
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Lecture 28 dated 05-03-2019
Topics Covered: Ideal Vs Real sources, sensing a voltage and a current, Types of amplifiers: V-V, V-I, I-V, output, and I-I, input and output impedance of four amplifier types
Module or sub-module covered: Module 3.1
Lecture 29 dated 06-03-2019
Topics Covered: Models of four amplifier types, Sense and return mechanisms, four feedback topologies
Module or sub-module covered: Module 3.1
Lecture 30 dated 11-03-2019
Topics Covered: Analysis of Voltage-voltage feedback topology, i.e. derive expression of closed loop gain, closed loop input and output impedance
Module or sub-module covered: Module 3.1
Topics Covered: Analysis of Voltage-voltage feedback topology, i.e. derive expression of closed loop gain, closed loop input and output impedance
Module or sub-module covered: Module 3.1
Lecture 31 dated 12-03-2019
Topics Covered: Analysis of Voltage-current feedback topology, i.e. derive expression of closed loop gain, closed loop input and output impedance
Module or sub-module covered: Module 3.1
Lecture 32 dated 13-03-2019
Topics Covered: Analysis of Current-voltage feedback topology, i.e. derive expression of closed loop gain, closed loop input and output impedance
Module or sub-module covered: Module 3.1
Lecture 32 dated 13-03-2019
Topics Covered: Analysis of Current-voltage feedback topology, i.e. derive expression of closed loop gain, closed loop input and output impedance
Module or sub-module covered: Module 3.1
Lecture 33 dated 15-03-2019
Topics Covered: Analysis of Current-current feedback topology, i.e. derive expression of closed loop gain, closed loop input and output impedance. Comparison of four feedback topologies, Circuit Analysis: Method of analysis of negative feedback amplifier topology.
Module or sub-module covered: Module 3.1 & 3.2
Lecture 33 dated 15-03-2019
Topics Covered: Analysis of Current-current feedback topology, i.e. derive expression of closed loop gain, closed loop input and output impedance. Comparison of four feedback topologies, Circuit Analysis: Method of analysis of negative feedback amplifier topology.
Module or sub-module covered: Module 3.1 & 3.2
Lecture 34 dated 18-03-2019
Topics Covered: Numerical 25 based on current-series negative feedback amplifier
Module or sub-module covered: Module 3.2
Lecture 35 dated 19-03-2019
Topics Covered: Numerical 26 based on voltage-shunt negative feedback amplifier
Module or sub-module covered: Module 3.2
Lecture 35 dated 19-03-2019
Topics Covered: Numerical 26 based on voltage-shunt negative feedback amplifier
Module or sub-module covered: Module 3.2
Lecture 36 dated 20-03-2019
Topics Covered: Numerical 27 based on voltage-voltage negative feedback amplifier and numerical 29 based on current-current negative feedback amplifier
Module or sub-module covered: Module 3.2
Lecture 36 dated 20-03-2019
Topics Covered: Numerical 27 based on voltage-voltage negative feedback amplifier and numerical 29 based on current-current negative feedback amplifier
Module or sub-module covered: Module 3.2
ECAD Numerical 28
Lecture 37 dated 22-03-2019
Topics Covered: Effect of bandwidth on negative feedback amplifier. Team building activity live in class. Concept of negative feedback.
Module or sub-module covered: Module 3.2 and 4.1
Lecture 38 dated 25-03-2019
Topics Covered: Difference between amplifier and oscillator, Barkhausen criterion, classification of oscillators.
Module or sub-module covered: Module 4.1
ecad_38.pdf | |
File Size: | 1558 kb |
File Type: |
Lecture 39 dated 26-03-2019
Topics Covered: RC phase shift oscillator working and derivation for frequency of oscillation.
Module or sub-module covered: Module 4.2
ecad_39.pdf | |
File Size: | 2597 kb |
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Lecture 40 dated 27-03-2019
Topics Covered: Design 04: Design of transistorized RC phase shift oscillator
Module or sub-module covered: Module 4.2
ecad_40.pdf | |
File Size: | 1466 kb |
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Lecture 41 dated 29-03-2019
Topics Covered: Wein bridge oscillator working and derivation of frequency of oscillator.
Module or sub-module covered: Module 4.2
ecad_41.pdf | |
File Size: | 2501 kb |
File Type: |
Lecture 42 dated 01-04-2019
Topics Covered: Radio frequency oscillator, LC Tank circuit, Working of Hartley, Colpitt’s and Clapp’s oscillator
Topics Not covered: General derivation of LC oscillator
Module or sub-module covered: Module 4.3
ecad_42.pdf | |
File Size: | 6648 kb |
File Type: |
Lecture 43 dated 02-04-2019
Topics Covered: Tuned collector oscillator, Numerical 31 and 32
Module or sub-module covered: Module 4.3
ecad_43.pdf | |
File Size: | 1872 kb |
File Type: |
Lecture 44 dated 03-04-2019
Topics Covered: Crystal oscillator, properties, principle, Pierce Crystal Oscillator
Module or sub-module covered: Module 4.3
ecad_44.pdf | |
File Size: | 2262 kb |
File Type: |
Lecture 45 dated 05-04-2019
Topics Covered: Difference between voltage amplifier and Power amplifier, Overview of Power BJT, Power MOSFET, Heat sinks
Module or sub-module covered: Module 4.3
Handout will be updated later
Lecture 46 dated 08-04-2019
Topics Covered: Series Fed Class A Power amplifier analysis, Numerical 33
Module or sub-module covered: Module 5.2
ecad_46.pdf | |
File Size: | 3103 kb |
File Type: |
Lecture 47 dated 09-04-2019
Topics Covered: Transformer-coupled Class A Power amplifier analysis, Numerical 34
Module or sub-module covered: Module 5.2
ecad_47.pdf | |
File Size: | 2709 kb |
File Type: |
Lecture 48 dated 10-04-2019
Topics Covered: Numerical 35 based on Transformer-coupled Class A Power amplifier, Numerical 36
Module or sub-module covered: Module 5.2
ecad_48.pdf | |
File Size: | 1448 kb |
File Type: |
Lecture 49 dated 12-04-2019
Topics Covered: Design 05 based on Series fed Class A power amplifier and Design 06 based on transformer-coupled Class Power amplifier
Module or sub-module covered: Module 5.3
ecad_49.pdf | |
File Size: | 2917 kb |
File Type: |
Lecture 50 dated 13-04-2019
Topics Covered: Numerical 37, Analysis of Series Fed Class A power amplifier with Potential divider biasing
Topics not covered: Analysis of Transformer-coupled Class A power amplifier with Potential divider biasing
Module or sub-module covered: Module 5.2
ecad_50.pdf | |
File Size: | 2265 kb |
File Type: |
ECAD lecture: BJT differential amplifier
Topics Covered: DC Analysis of BJT differential amplifier, Derivation of Ad and Acm for DIBO and DIUO configurations, differential and common mode input impedance, Numerical 38, Numerical 39 and Numerical 40
Module or sub-module covered: 6.1
ecad_bjt_differential_amplfier.pdf | |
File Size: | 4419 kb |
File Type: |
ECAD lecture: MOSFET Differential Amplifier
Topics Covered: DC Transfer characteristics, DC Analysis, Derivation of Ad and Acm for DIBO and DIUO configurations, Numerical 41
Module or sub-module covered: 6.2
ecad_mosfet_differential_amplifier.pdf | |
File Size: | 2909 kb |
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ECAD lecture: Constant Current Sources
Topics Covered: Need of constant current sources, BJT current sources: Two transistor and improved three transistor current source, Cascode current source, Wilson and Widlar current source, MOSFET current sources
Module or sub-module covered: 6.3
ecad_constant_current_sources.pdf | |
File Size: | 9109 kb |
File Type: |
NOTE:
Since these topics were not covered in class, few pointers will help one grasp the topic faster.
1. Read up a few pages of the handout and try to understand the NEED of constant current sources. (Takes 10-15 minutes)
2. Then read on how we build a current source using a BJT (Takes 5 minutes)
3. Start with basic two transistor current sources (only concentrate on understanding the circuit and deriving the relationship between the output current and reference current) (Takes 15-20 minutes)
4. Move on to 3 transistor Current sources( do same) (Takes 15-20 minutes)
5. Then slowly on a similar pace, one can try Wilson, Cascode and Widlar current sources
6. One important note, Kindly SKIP output resistance explanation and equation for all current sources ( if you have time, do it)
7. A similar strategy can be followed for MOSFET based current sources.
Since these topics were not covered in class, few pointers will help one grasp the topic faster.
1. Read up a few pages of the handout and try to understand the NEED of constant current sources. (Takes 10-15 minutes)
2. Then read on how we build a current source using a BJT (Takes 5 minutes)
3. Start with basic two transistor current sources (only concentrate on understanding the circuit and deriving the relationship between the output current and reference current) (Takes 15-20 minutes)
4. Move on to 3 transistor Current sources( do same) (Takes 15-20 minutes)
5. Then slowly on a similar pace, one can try Wilson, Cascode and Widlar current sources
6. One important note, Kindly SKIP output resistance explanation and equation for all current sources ( if you have time, do it)
7. A similar strategy can be followed for MOSFET based current sources.
Basic Current Mirror OR Two transistor BJT current source
Watch video from start and end at 15 minutes
Watch video from start and end at 15 minutes
ECAD lecture: Power Amplifier
Topics Covered: Comparison between different classes of Power amplifier, Class B transformer coupled Push-Pull Power amplifier: Working, waveforms and derivation of efficiency, Problem of Cross-over distortion in Class B, Two techniques for elimination of COD, Class AB Power amplifier, Biasing techniques for Class AB: Diode biasing, VBE Multiplier biasing, input buffer biasing transistor biasing, Class C Power amplifier
Module or sub-module covered: 5.2
ecad_power_amplifiers.pdf | |
File Size: | 3613 kb |
File Type: |