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I'm not sure if you already fully understand what you're doing. The ALD210808 is a very expensive precision device. However, in your circuit, all precision is created by the sensing resistor and the sense amplifier. The ALD's excellent matching and DC specs - except maybe for leakage current -...
@cupoftea: the pdf is not perfectly clear but the 10th light certainly does not draw 100 watt.
Ts states turning on an additional light with each step and notes in the table the theoretical, expected total power to the lights, ignoring cable losses.
I assumed that the noted smps voltage is...
What you experience is clearly the result of a constant power load: the lower the input voltage, the more current the lights draw. You definitely need a higher voltage at the end of the 100? 200m? run. Just a few volts more may make a big difference.
Sounds like a silly question but did you...
Don't give up so soon. 'It does not work' is not the end of testing, it is the beginning.
Is power present (not shown in your circuit diagram)?
How did you generate 2.5V? (also not shown in your circuit diagram)
Is the pinning of each component correct (sensor pins 1 and 2 don't match the...
Let's first clarify the power supplies during programming:
The PICKIT is powered from the USB supply, not from the circuit.
During programming, your microcontroller can be supplied from the system supply. It could also be supplied from the PICKIT, as long as the target consumes < 30 mA. Refer to...
In addition to the above -excellent- suggestions, also consider that nonlinear distortion, psrr and cmrr are directly related to the difference between open and closed loop gain ('excess gain'). Depending on your application, the lack of excess gain may cause problems in the higher frequency...
Thanks.
Well I don't see ratings on smps level efficiency and standby usage in the DK124 datasheet. I may be looking at the wrong place. Now I notice the fuse holder has a good enclosure, no problem with creepage indeed.
Nice work!
Just curious, as I don't look at SMPSs that much. What range of efficiency and standby power did you reach?
I also wonder how you decided about the cutouts for the creepage.
The fuse seems a bit close to the DK124 but the creepage is still OK?
There is nothing wrong with your basic idea, it should work. I've used a cheap class D module, a battery and a speaker before to make a usable mobile bass amp.
You mention 'distortion' as the problem, but the video shows a large low frequency oscillation. Are the two problems happening at the...
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