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Schematic for power supply module ?

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Well-Known Member
This newer module step-sets the output voltage by +, - touch buttons on the bottom right; is is not the same as similar ones that use a potentiometer :

Uses a XL4015E1 chip, and a MCP6002i. Probably made by 'WHDTS' Do you know its schematic ?
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Nigel Goodwin

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There is a chip under the numerical display to drive it, and unless it has additional features; the method to step voltage has me scratching my head...
That chip will be a microcontroller, doing all the work.

The datasheet for the regulator chip doesn't really help, that's easily available and obviously doesn't mention any extra control circuitry.
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