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A lot of the suggestions found online about separating analog/digital circuits is impractical, especially with only two copper layers to work with. And usually deciding if and how to partition things requires a detailed description of how the board connects to all external circuits/systems (and...
When you say "tolerances as 1%", what do you mean specifically? Does it mean each component can vary independently of the others? That would be unrealistic. For example the Z0 of a line might vary by 5% from board to board due to substrate variability (especially if they're from different fab...
It's still not clear if the simulation has one or two ports. If two, can you show the plot for S21?
If it's just one port, then have you put some sort of terminator on the other end of the line? If not, then your S11 plots look as expected.
Giving out tiny crumbs of information like this probably won't yield useful advice.
I'm guessing this is for making a pulsed magnetic field, like a magnetizer? Does it matter what shape the pulse is?
By "line filter" I meant a series inductance followed by some shunt capacitance, which will filter off the 25kHz PWM signal from the driver.
It's possible that the leakage inductance of the transformer may effectively act as the inductor, so simply adding a capacitor on the secondary side...
The schematic shows that it's a self-oscillating flyback. Its behavior is governed by three different feedback loops all competing with each other. It looks like you've done an excellent job transcribing the schematic, so I'll do my best to explain how it works.
At power-on, R1 and R7 will...
Please stop using the forums to ask people to pirate standards for you.
They're managed by different bodies, who each get to decide what to charge for access to their standards.
Also IPC-2221 is not a safety standard.
What you're describing is basically just a coaxial cable with a terminator at one end (provided by the scope, if it has a 50ohm input mode) and the "probe" end connecting directly to the DUT. This is something that's straightforward and worthwhile to craft yourself. But I suppose you could find...
From the standpoint of just filtering, the order of the CM/DM filters don't matter, like crutschow said above.
When also considering other aspects such as safety, surge immunity, etc, there can be practical benefits to specific arrangements for the filter components.
Indeed figure 2 is...
In principle, using a DC supply as an input to a MPPT controller can work, but it whether it actually will work will depend on how your inverter implements the MPPT. It might be worth it to first try connecting a simple 75V supply to the inverter before trying for anything more complicated...
When properly configured, the LTC7000 should raise Vout with a controlled slew rate, and thus acts roughly like a current source into a capacitive load.
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Agreed, for such a large capacitor bank those FETs will likely not survive. Another good reason to reduce the VBUS capacitance.
Too bad I didn't see this thread earlier. I've used the LTC7000 in a few designs, with trip thresholds up to 100A.
Yes, you have to implement some sort of RC on the gate to limit the output slew rate, thus providing inrush limiting to capacitive loads. I suggest you will need far more...
BLDCs are driven by inverters (half bridges) powered from DC, not a series switch powered from AC. Completely different. With a half bridge, the body diodes can carry the load freewheeling current without overvolting the FETs.
Certainly every conductor has transmission line behavior (at a high enough frequency), even in a vacuum.
If the wire passes near materials or media with differing conductivity/permittivity/permeability, then that will have a confounding effect on the "length" measurement. Same for the path of...
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