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Low cost flyback power supply design

Posted: 12 Aug 2014  Print Version  Bookmark and Share

Keywords:inverter  AC back up  stored energy  battery 

Inverters are commonly employed in residential and industrial applications for AC back up in case of power outages. The function of an inverter is to convert the stored energy in the battery to AC voltage that can be used to provide power to various devices such as fans and lights when AC power is not available.

Depending upon the power output (VA), inverters come in various power ranges ranging from 100 VA to 3.2 kVA. The input of the power inverter may come from a 12 V, 24 V, or 48 V battery. In a high frequency (HF) inverter, AC voltage is converted to an intermediate high voltage before it's converted to an AC waveform using pulse width modulation (PWM).

This application note discusses designing an integrated and low-cost power supply for the most commonly used inverter application that runs from 12-V battery. However, the concept of using a boost converter for a flyback application can be applied across any similar design.

View the PDF document for more information.

Originally published by Texas Instruments Inc. at www.ti.com as "Designing a Low Cost Flyback Power Supply Using Boost Converter (TPS61165) for High Frequency Inverter".





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