Miniature polarity reversal power supply using MAX1721
Source: InternetPublisher:newrudeman Keywords: Reverse Power Supply MAX1721 Updated: 2024/08/19
As shown in the figure, a miniature polarity reversal power supply is constructed using the miniature (SOT23 package) inverting charge pump integrated circuit MAX1721. This circuit only needs to connect a small-capacity, small-size 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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