SMPS & I/O DEVICES Presented by: Samudranil (986545) Soumyashree(974410) Satyam (929405) Priya (974829) Soham (986412)

Contents Introduction Details operation How to choose best SMPS Types Comparison Latest trends and Market updates I/O Devices Market and advance Technology updates Conclusion

Introduction SMPS (Switched Mode Power Supply): Electronic device which accepts AC voltage and converts into DC voltage.

Details A : Input EMI filtering; B : Input filter capacitor C : Transformer D : Output filter coil E : Output filter capacitor

Details Operation:-

How to choose the best SMPS The load to be put on computer The motherboard of the computer The architecture

Types DC to DC Converter : The primary power received from AC main is rectified and filtered as high voltage DC. Forward Converters : Uses a tranformer to increase and decrease the output voltage and provide galvanic isolation. Flyback Converters : Buck-boost converter with the inductor split to form a transformer. Self Oscilating : Self-Oscillating Flyback Converter is the most simple and basic converter based on the flyback principle.

Comparision Power SupplyLinearSMPS SizeLarge and heavySmall and Light Efficiency30-40%70 – 95% ComplexitySimpleComplex EMILow noiseFiltering Required CostHigh(Due to material)Low

Advantages & Disadvantages Advantages : Lower Weight Smaller Size Higher Efficiency Lower Power Dissipation Disadvantages: Noise External Component Expert Design Required Costs

Latest Trends and Market updates Going Green : No load feature including the WLP350, WLP225 series. Zero Voltage switching : EMSYS Electronics ltd. Reduces the losses in the power supply. Wide temperature range : -40 degree celcius to 70 degree. Nippon India's Meanwell RST Omron's S8VK-T-seris

I/O Devices Communication between an information processing system and a outside world. Inputs are the signal received by system which are processed by the CPU and sent to the outside world. Output are the data sent out from the system.

Details Input Device: Types of input devices : Manual input devices

Automatic input devices

Output devices : Monitor CRT monitors LCD plasma Printer dot matrix printers ink jet printers laser printer multi purpose printer Plotter speakers

Market Updates Touchscreen telephone access systems features 22 in. color Double protectionHeadset 3D Scan System

Sanitized Medical joystick Custom Keypad

Advanced Technologies Razer unveils the world's most advanced gaming mouse Remix Mini - The World's First True Android PC

Neeron is a programmable contactless switch with Z sense! Hds 7 gen2 touch

Conclusion The most common SMPS technologies : flyback,push-pull, half bridge, full bridge converters have been outlined Each has its own particular operating characteristics and advantages, which makes it suitable to particular applications. Using these I/O devices user can do its work more effectively

Thank you