Apologies, I’m not sure if that image is coming up so I’ll just add a direct link below.

https://drive.google.com/file/d/0B9xAbPi14YnWOEd6eFIzRGg2UGs/view?usp=sharing

Thanks.

Hi,

Thank you for the previous post, it was very helpful. My connections are all correct but alas my problem still persists.

So I’m putting a constant 12V from a power supply into the Vin +/-. The max Vout is 2.8V and the fault light is on. The increase from the minimum output (0.8V) to approximately 2.6V seems to be linear and operating correctly, I’m using typical rotary shaft potentiates (200kOhm CC, 500kOhm Vout) to control output. I have also turned the under voltage counter clockwise to no avail. This module was working correctly at one time and unfortunately I cannot pinpoint the exact circumstances under which it malfunctioned.

Hopefully there is some obvious solution to my problem, thank you for your help.

Best regards,

James.

Hey Drok team,

I can’t figure it out. I must of fried one of the chip pins, anyway I’ve just gone and bought myself another one.

Thanks for all the help,

James.

Hello again,

It is with a great deal of frustration that I must message you again.
So I went and bought another module, same as model as the previous. I was testing it for its purpose and the module failed (due to my actions). So I now own two of these malfunctioning modules and I feel like I have to mend them now, if possible. But at least this time I had a multimeter on the output.

So, what I was trying to do:
I removed the CC-SET and VOUT-SET potentiometers and replaced them with female headers so that I could just plug in wires coming from a larger one turn potentiometers (of equal value) with knobs.

This was all fine and actually worked well, but while testing it I momentarily saw the multimeter read 40V (it may have been initially higher) then drop down to 2.8V. This is as high as it will go now and the error light is on. I assume I bumped my setup and the module saw a greater resistance than was actually applied and tried to apply a voltage that was greater than it’s rated for. This is true for both of the modules I bought.

Please help, thanks.

Regards,

James.

Hi,

Yes, I have made an adjustment damaging the module and am looking for help in trying to find a solution to repair it.

The module worked fine prior to the adjustment, as stated in my previous post.

I think that for some reason the module saw a much larger resistance than the one being applied and tried to output a voltage greater than the operating limits of the module, thus damaging it.

Currently the modules fault LED is on and the max output voltage is 2.8V.

Please advise.

Kind regards,

James.

Hi,  Would it be possible to get the circuit diagram of the drok buck converta 5V-30V.  sku:090627.

Also it seems now no longer available in Amazon.  Is it still available for purchase ?

Thanks