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Other Equipment & Products / Re: Pace ADS200 soldering station
« Last post by Hydrawerk on Today at 11:08:17 pm »It is probably made of steel and/or aluminium. Pace MBT450 looks a lot more industrial than any today's JBC station.
I insist that with lower frequency (everything else being equal) the voltage at the filter capacitor falls further. Model an AC voltage source, followed by a rectifier bridge, a capacitor and a constant current load. My prediction is that the voltage at the capacitor and load falls further with decreasing frequency. It must be obvious to anyone.
I meant I get a clean sine wave up to 841MHz.Ah, I see. Well, that's just one point in time, and the display persistence hides the deviation of the peaks from the real value. What we're interested in is observing dynamically how the waveform becomes wobbly as the signal frequency increases and gets closer to that point.
It's clearly better than the Rigol, though, which is much worse at 1/2.5x the sampling rate. I wonder how the SDS800X HD scopes perform in this scenario.
Here's, BTW, a 500 MHz sine wave captured at 1.25 GSa/s sampling rate:
I keep wondering what that 1N4148 is even doing there? It's the oddest circuit I've seen.
The frequency of mains supply after rectification 100Hz or 120Hz depending on where you live. AND THERE IS NO SIGNIFICANT BEHAVIOUR CHANGE OF AN ELECTROLYTIC CAPACITOR BETWEEN 100Hz AND 120Hz AT 20 to 25Co It makes no damn difference whether it's on a linear supply or an SMPS. That tiny change in Value and ESR between 100Hz and 120Hz won't make a damn bit of difference to the ripple voltage. Electrolytic capacitors have as much as 20% tolerance in value and your saying that a fraction of a uF can make a significant difference to ouptut ripple? That's absurd! Just to reduce the output ripple voltage by half, the capacitance needs to double.Canadian, eh? Now, now, there is no need to be rude. I see you don't get it and you get defensive.
OK so Arcam had it perfect 30 years back!?