Google’s Switched Tank Converter (STC)
6K views · Jul 26, 2025 · Education
Comments · 23
@mikemarachov3230 · 1 year ago
פרופסור, תודה רבה :) חיכיתי לזה מאוד! שעוד הרבה מאוד שנים תעשה לנו סרטוני הדרכה ולימוד!
1
@Sakertech-mv · 1 year ago
These capacitor switched topologies always have the same problem: too many switches, drivers, isolated supplies for the drivers and complex controls.
3
@qwaqwa1960 · 1 year ago
This seems quite similar to what Prof. Cuk was promoting some years ago...
1
@ArnoldSzathmary · 1 year ago
The topic of how power supplies can be built without the usual inductors is extremely interesting, regardless of the reasons behind it. However, I think it is a niche technology.
1
@weishufuying · 1 year ago
Very nice explanation. I have a question about the plotted efficiency and the conduction loss calculation. One of the slide shows the efficiency at 600W is greater than 97%. Let's take 97% at 600W, which is 50A for 12V output. In this case, the total power loss is 18.56W, wherein the conduction loss takes about half, hence ~9W. Using the equation in one of your side, 9W = 50A*50A* 5*(Rdson+ESR+...), it would result in 0.7mOhm. Do you think it is practical for google to achieve such a low total resistance at DC?
@ciceropower3992 · 1 year ago
Great! What about a video regarding hot swap techniques? thanks.
1
@n3r0z3r0 · 1 year ago
Am I only one who feeling discomfort seeing P-chan FETs assumed to work as N-chan ?
1
@codures · 1 year ago (edited)
Q: why not throw an extra coil before Cout (keeping the load on Cout) to limit those spikes?<br>I don't know if it's possible but it would be great if one could adapt off the shelf SCCs (from microchip for instance) and improve their (pathetic) efficiency.<br>Edit: great video professor.
1
@JamesReedy · 1 year ago
Curiosity? Tell it to bajillions of iPhones whose audio power amps have been driven by switched capacitor boost converters.
2
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