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Week 6 S-25 Electrical and Electronic Systems.pptx
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- 2. Lecture Learning Outcomes Studentswill be able to: Differentiate Analogue and Digital Electronics Explain Logic Gates and its applications Discuss Electronics in the Textile Industry
- 3. Analogue vs DigitalElectronics Analogue Electronics example: You can run the fan at any number of speeds. Analog electronics uses components that can have several states. Digital electronics, relies on circuits that have switches. You can either have the switch on, or off. And this is used to perform all the data processing.
- 4. Analogue vs DigitalElectronics We use digital electronics in general, since digital is a lot more tolerant to noise. Since there are only two states, there needs to be lot of disturbance before one state is mistaken for another. As a result, we can take more liberties while designing and go faster with digital electronics. Analog has its own domains. The outside world is analog, so we use a lot of analog inputs and convert them to digital, process it and reconvert to analog output.
- 5. Analogue vs DigitalElectronics Basic elements of Analogue Electronics: Resistors, Capacitors, Inductors, Transistors Basic elements of Digital Electronics: Logic Gates
- 6. Logic Gates Logicgates are the basic building blocks of any digital system. It is an electronic circuit having one or more than one input and only one output. The relationship between the input and the output is based on a certain logic. Based on this, logic gates are named as AND gate, OR gate, NOT gate, NAND, NOR, etc. AND Gate: A circuit which performs an AND operation.
- 7. Logic Gates ORGate: A circuit which performs an OR operation. NOT Gate: NOT gate is also known as Inverter.
- 8. Logic Gates NANDGate: A NOT-AND operation is known as NAND operation. NOR Gate: A NOT-OR operation is known as NOR operation.
- 9. Application of LogicGates
- 10. Introduction to Electronicsin Textile Industry In Textile Industry, electronics can be embedded in the fabrics to make them function electrically and behave physically as textiles. The technology is not visible on the fabric as it is actually embedded into it. This type of fabrics are known as electronic textiles. The field of e-textiles can be divided into two main categories: 1) Laminated e-textiles: The first category involves mounting classical electronic devices such as conducting wires, ICs, LEDs and conventional batteries into garments. 2) Embedded e-textiles: The second category involves creating electronic function directly on the textile fibers. These functions can either be passive such as pure wires, conducting textile fibers, or more advanced functions such as transistors, diodes and solar cells. The field of embedding advanced electronic components onto textile fibers is sometimes referred to as fibertronics.
- 11. Introduction to Electronicsin Textile Industry Examples A shirt that takes regular measurements of the wearer’s heart rate while they’re exercising and pairs with a smartphone app. Small, light, and stylish wearable medical devices that monitor blood oxygen or other difficult-to-detect health metrics and sends alerts to a medical team automatically. A backpack for children that incorporates GPS and other location functionality into the fabric for safety purposes.
- 12. Introduction to Electronicsin Textile Industry Examples Most research and commercial e-textile projects are hybrids where electronic components embedded in the textile are connected to classical electronic devices or components. Some examples are touch buttons that are constructed completely in textile forms by using conducting textile weaves, which are then connected to devices such as music players or LEDs that are mounted on woven conducting fiber networks to form displays.
- 13. Introduction to Electronicsin Textile Industry BENEFITS OF E TEXTILES – Flexible – No wires to snag environment – Large surface area for sensing – Invisible to others – Cheap manufacturing Electrical properties: Conductivity is the most important factor. Electrical resistance low enough to allow a flow of electric energy, such as for power or data transmission, is critical. Metal, carbon, or optical fibers are typically well-known conductors. Conductive yarns are either pure metal yarns or composites of metals and textiles. Metals are superior in strength and fineness, and textiles are selected for comfort. In order to produce a successful conductive yarn, the best mix of conductive and non-conductive materials is critical. As a thread takes on a bigger portion of conductive components, it loses the typical textile properties such as flexibility or drapability and becomes more conductive. The achievement in electrical resistance has ranged from 0.2441 ohms per meter (Ω/m) to 5,000 Ω/m
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Editor's Notes
- #2 3.4 Optical Diodes