DC-DC Buck Converter doesn't lower voltage

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Howard Marsh
September 17, 2017 at 11:30 pm

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#21891 Reply |

I just tried my new DROK DC-DC Adjustable 5A Buck Converter Stabilizer 6-32V to 1.25-32V Step Down Dual Amperage LCD Display Constant Volt Amp 6V 12V 24V Regulator Power and it does not appear to work correctly.

I’m using a 12v battery as input and was trying to adjust the output to 5v for USB application.

No matter what I do, the voltage does not change. I tried adjusting it with a load (1K and 470 ohm resisters) and no load and regardless of the Vpot setting the output voltage is the same as the input.

If I am using it correctly, how do I get a replacement?

Thanks

Drok
Keymaster

September 18, 2017 at 10:10 am

Post count: 2971

#21902 Reply |

Hello Howard Marsh,
Thanks for writing in.
Would you please firstly help to confirm if it is the following item?
180080

The factory default output for this item is 20V, so you need to turn anticlockwise the “ADJ-V” regulator for over 10 turns.
Please let us know if it can work.
Best regards.

Howard Marsh
September 19, 2017 at 12:07 am

Post count: 0

#21939 Reply |

It is that item only without the shield:

https://www.amazon.com/gp/product/B01FCY4JFU/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

Model: 180078

Thanks

Drok
Keymaster

September 19, 2017 at 7:44 am

Post count: 2971

#21957 Reply |

Hello Howard Marsh,
Thanks for your reply.
This item #180078 is the same to #180080. The only difference is without shell.
As what we said previously, please try to turn anticlockwise the “ADJ-V” regulator for over 10 turns until output voltage is changed.
Best regards.
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Viewing 4 posts - 1 through 4 (of 4 total)