[Edit] Using a 18-25W LED Driver, it was not possible figure Constant Voltage function out: whenever a voltage is set for it, within itsrange (50 to 75V), the driver starts making high pitched intermittent (not happy) noises, as if DT24 was trying to "pulse resistance" against it. I bought one of these and I think: Constant Voltage function could be suitable for LED drivers, which are current driven and have a range of power (18w to 24w, for example). I don't test it yet*. Yes. I have some LED drivers for testing: - 4-7w @ 300mA (suitable for 7x1W Power LED spotlight) - 18-24w @ unknown/not clear stated current (suitable for ceiling LED fixture) * I'll come back here in a couple of days: I have some working LED drivers for testing that function. See you soon.
In your CV demonstration, I think you misunderstand what is happening. When you set 4.8V CV, you are overloading the power brick, and the power brick is going into cut off to protect itself. It's not that the DL24P cannot find a solution, it's that the brick is overloaded and going into cutoff. The power brick waits a few seconds, then tries to supply power again... the cycle repeats. It is not an issue with the DL24P "being able to find a solution". Ideally, you would use a benchtop power supply to demonstrate all these modes, very easy to show what is going on when you can actually control the output of your power source to demonstrate the modes of the DL24/DL24P.
Yes, I agree the brick is overloaded. I see what you mean. I could have been clearer with my terminology. It would have been better to say that the DL24 is trying to produce a load that would achieve the target voltage. I did a quick test with a bench supply. My supply is limited to 5A. The bench supply does a little better, but it soon hits its current limit. At that point the DL24 behaves the same way, with the cycling of the load as seen in the video.
Good, looking forward for more videos
[Edit] Using a 18-25W LED Driver, it was not possible figure Constant Voltage function out: whenever a voltage is set for it, within itsrange (50 to 75V), the driver starts making high pitched intermittent (not happy) noises, as if DT24 was trying to "pulse resistance" against it.
I bought one of these and I think: Constant Voltage function could be suitable for LED drivers, which are current driven and have a range of power (18w to 24w, for example). I don't test it yet*.
Yes. I have some LED drivers for testing:
- 4-7w @ 300mA (suitable for 7x1W Power LED spotlight)
- 18-24w @ unknown/not clear stated current (suitable for ceiling LED fixture)
* I'll come back here in a couple of days: I have some working LED drivers for testing that function. See you soon.
In your CV demonstration, I think you misunderstand what is happening. When you set 4.8V CV, you are overloading the power brick, and the power brick is going into cut off to protect itself. It's not that the DL24P cannot find a solution, it's that the brick is overloaded and going into cutoff. The power brick waits a few seconds, then tries to supply power again... the cycle repeats. It is not an issue with the DL24P "being able to find a solution".
Ideally, you would use a benchtop power supply to demonstrate all these modes, very easy to show what is going on when you can actually control the output of your power source to demonstrate the modes of the DL24/DL24P.
Yes, I agree the brick is overloaded. I see what you mean. I could have been clearer with my terminology. It would have been better to say that the DL24 is trying to produce a load that would achieve the target voltage.
I did a quick test with a bench supply. My supply is limited to 5A. The bench supply does a little better, but it soon hits its current limit. At that point the DL24 behaves the same way, with the cycling of the load as seen in the video.