Review on π CenryKay DC-DC Buck Boost Converter with LCD Digital Voltmeter Ammeter - Adjustable 0.5V-30V, 3A Boost Drop by Andrew Aldana
With built-in voltmeter and ammeter
I used them to make adjustable bench power supplies and adjustable chargers. The only problem is that the input voltage is limited to 30VDC, as the rectified 24VAC voltage can rise above the input threshold and cause the power to cut off (a very minor issue for me).
- Button Control: The button controls the ON/OFF state of the output voltage, and the default state of the output can be set to ON or OFF at the next power-up.
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