V
VK2RK
Guest
If using this voltage buck regulator be advised that the manufacturer has an error on the PCB that causes the unit not to behave as expected.
From the image it can be seen that one can select one of the seven output conditions, when I tested the unit I found that the output voltages were not as expected, selecting the 5V produced a voltage below this figure, that the variable control altered the output voltage but not reach 5 Volts.
Tracing the board revealed that the manufactures had the variable control permanently connected, requiring to cut the track.
After this the selected voltages behaved as expected.
From the image it can be seen that one can select one of the seven output conditions, when I tested the unit I found that the output voltages were not as expected, selecting the 5V produced a voltage below this figure, that the variable control altered the output voltage but not reach 5 Volts.
Tracing the board revealed that the manufactures had the variable control permanently connected, requiring to cut the track.
After this the selected voltages behaved as expected.