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Convert negative inputs to positive outputs


Power circuit diagram - Convert negative inputs to positive outputs
Power Circuit diagram - Convert negative inputs to positive outputs
Voltage divider R1/R2 at IC1’s output provides feedback that sets the output voltage 10.5V above IC1’s ground pin.
Shane Chang and Budge Ing, Maxim Integrated Products, Sunnyvale, California
You can obtain a precise, positive-output voltage from a negative-voltage supply with a boost converter and a linear regulator.

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