power electronics notes by arun kumar pdf free download

The SMPS should also function normally under 50Hz and 60Hz frequency as well. SMPS can be used in any country and could provide a stable output of full load if the voltage is between 85-265V AC. This means the input voltage can differ from the 85V AC to 265V AC. Generally, SMPS works with universal input voltage range. There are also other nations which use different voltage levels. For India, the input AC is available in 220-230 volt, for the USA it is rated for 110 volts. As this design is specified for AC-DC conversion, the input will be Alternating current (AC). An input supply voltage is the first thing which will be used by the SMPS and will be transformed into a useful value to feed the load. Different kinds of power supply work in different environments and with specific input-output boundaries. If this 12v 15watt power supply circuit doesn’t match your requirement, you can check various power supply circuit with different ratings.īefore proceeding with any kind of power supply design, requirement analysis has to be done based on the environment in which our Power supply will be used. This circuit can be used to power small loads or even be adapted into a charger to charge you lead-acid and lithium batteries. In this tutorial we will learn how to build a 12v SMPS circuit that would convert AC mains power to 12V DC with a maximum current rating of 1.25A. The most commonly used of type of power supply circuit is the SMPS (Switching Mode Power Supply), you can easily find this type of circuits in your 12V adapter or Mobile/Laptop charger. consists of a power supply unit built into it which converts the AC mains voltage to a suitable level of DC voltage for them to operate. Almost all devices in our home, like TV, Printer, Music Player etc. Every Electronic device or product requires a reliable power supply unit (PSU) to operate it.

Power electronics notes by arun kumar pdf free download