Miniature polarity reversing power supply composed of MAX1721
Source: InternetPublisher:sigma Keywords: Power supply BSP Updated: 2021/03/11
Shown in the figure is a miniature polarity reversing power supply composed of a miniature (SOT23 package ) inverting charge pump integrated circuit MAX1721 . This circuit only needs to connect a small capacitor of 0.33μF to the outside of MAX1721 to complete the polarity reversal, that is, the output voltage Vo=-Vi.
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