ec302-introduction
TRANSCRIPT
![Page 1: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/1.jpg)
EC302 – Electronic Computer Aided Design
MOHD AT-TARMIZI BIN ABU HASSAN
013-3507201
![Page 2: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/2.jpg)
FIRST WARNING !!!
• NO excuse for who come late to my class• NO reconsider for any marks given• NO empty-talk in my class• NO delay assignments submitting• NO inappropriate wear• NO hang around in my class• NO stupid talk
![Page 3: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/3.jpg)
THE INTRODUCTION
![Page 4: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/4.jpg)
CAD = Computer Aided Design
• modeling of physical systems on computers
• allowing both interactive and automatic analysis of design variants
• expression of designs in a form suitable for manufacturing
* Also known as CADD (Computer Aided Design & Drafting)
![Page 5: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/5.jpg)
Software
• Altium Designer a.k.a DXP Designer• PSpice• PLECS• Crocodile Clips a.k.a Crocodile Technology• LiveWire• Eagle DXFmany more….
![Page 6: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/6.jpg)
![Page 7: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/7.jpg)
Type of Simulation Circuit
• Analog• Digital• Mixed-signal
![Page 8: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/8.jpg)
Type of Simulation
• DC Analysis• DC Sweep Analysis• AC Analysis• Transfer Function Analysis• Transient Analysis
![Page 9: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/9.jpg)
DC Analysis
• Determination of steady-state response of the circuit when time-invariant DC sources are applied.
![Page 10: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/10.jpg)
DC Sweep Analysis
• Determination of response of the circuit when excitation, or any other component is varied over a range.
![Page 11: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/11.jpg)
AC Analysis
• a.k.a Frequency Domain Analysis • Determination of steady-state response of
the circuit when sinusoidal excitation is applied mine the frequency response of the circuit.
• The frequency of excitation can be varied to determine the frequency response of the circuit.
![Page 12: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/12.jpg)
Transfer Function Analysis
• Determination of small-signal transfer function with small-signal gain, input impedance, output impedance.
![Page 13: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/13.jpg)
Transient Analysis
• a.k.a Time Domain Analysis• Determination of variation of response of
the circuit with respect to time.
![Page 14: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/14.jpg)
Advantages of Simulation
• able to provide users with practical feedback when designing real world systems
• study a problem at several different levels of abstraction
• can be used as an effective means for teaching or demonstrating concepts to students
![Page 15: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/15.jpg)
Disadvantages of Simulation
• computationally intensive processing required by some simulators
• restricted by limited hardware platforms which cannot meet the computational demands of the simulator
• introduce simplifying assumptions or heuristics into the simulator engine
• computational complexity is to employ the hierarchical approach to design and simulation
![Page 16: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/16.jpg)
Simulation Method
• Circuit level• Logic level• System level
![Page 17: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/17.jpg)
Design and Simulation Process
Identify Project
Design / Redesign Project
Simulation
Testing
PCB Design Layout
Prototype
- A project or circuit to be designed is identified
- The project/circuit is designed based on theory
- The project designed is simulated using software
package to produce results/outputs of the project operation
- The printed project/circuit board layout is designed and produced
- An actual working model of the project is constructed
- See whether the project actually works as in simulation
Fai
l
![Page 18: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/18.jpg)
Netlist
• Source Element• Passive Device Element• Active Device Element
![Page 19: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/19.jpg)
Source element
• The sources functions to supply the circuit with power supply or input waveforms. There are THREE (3) different types of sources used in simulation
- DC Source
- AC Source
- Transient Source
![Page 20: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/20.jpg)
DC Source
• A source that generates dc voltage and dc current
• There are two types of dc sources: – dependent source– independent source
![Page 21: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/21.jpg)
AC Source
• A source that generates sinusoidal waveforms at different frequencies with the same magnitude
![Page 22: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/22.jpg)
Transient Source
• A source that generates waveform whose amplitude changes with time
• Examples of transient sources are:
- Sine Waveform
- Pulse Waveform
- Polynomial Waveform
- Exponential Waveform
![Page 23: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/23.jpg)
Passive Device Element
• Passive elements are electronic passive components
• Example:
- Resistor
- Capacitor
- Inductor
- Transformer
![Page 24: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/24.jpg)
Active Device Element
• Active device elements are electronic components made of semiconductor material
• Examples :
- Diode
- Bipolar Transistor (BJT)
- Field-Effect Transistor (FET)
- Integrated Circuit (IC)
![Page 25: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/25.jpg)
Why do we need to simulate
• A simulation is not used to figure out how a circuit works
• It is important to know the theory of your design before you simulate
![Page 26: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/26.jpg)
Why do we need to simulate
• In the verification process, results generated by the simulation package will give information about the designed circuit
![Page 27: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/27.jpg)
Output in verification process
• Circuit Output - voltage distribution, current flow, waveforms, frequency response curve, switching speed in digital circuits
• circuit operation sensitivity towards change in other component values
• change in circuit characteristics due to temperature change
• circuit elements parameters could be modify for optimum operation
![Page 28: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/28.jpg)
UNDERSTAND ?
![Page 29: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/29.jpg)
QUIZ 1
• Give at least FOUR (4) types of simulation.
• Draw the flow chart for simulation process.
P/S : Don’t forget to write down your name, reg. no, i/c no, class, and assessment no.
![Page 30: EC302-Introduction](https://reader033.vdocuments.site/reader033/viewer/2022052905/5585b295d8b42af75f8b4579/html5/thumbnails/30.jpg)
LAST WARNING !!!
• NO excuse for who come late to my class• NO reconsider for any marks given• NO empty-talk in my class• NO delay assignments submitting• NO inappropriate wear• NO hang around in my class• NO stupid talk