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How does the power input circuit in the picture work?

Hardware design
九月 21, 2020 by Jocelyn 394

The picture shows a power input circuit. How does this part work?

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Bradley 发表于 September 21, 2020

It seems to be to reduce the power-on surge current.

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Payton 发表于 September 21, 2020

Power on, charge the capacitor first, power off, and empty to save power.

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Grayson 发表于 September 21, 2020

When the power is turned on, the capacitor is charged first, and when the power is turned off, the capacitor is discharged and stored before disconnecting the output.

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