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Battery_input_buck_boost_regulator

2016-05-10 19:29  
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Battery_input_buck_boost_regulator
This circuit converts an input voltage that can range from above (6 V) and below (4 V) the desired output voltage (5 V). Normally, such a circuit must provide both step-up and step-down actions. However, if the input ground can be floated, as is often the case with a battery, an inverter can be used instead of a transformer or a complicated and lossy step-up/down circuit by fixing the most-negative output voltage at ground.