Timeline for Difference between Peak rectifier vs Full wave rectifier
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
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| Sep 18, 2020 at 23:05 | comment | added | td127 | Interesting! The demo app note goes into great detail about the power lost in that capacitor (due to large AC voltage across it) while acknowledging there is much smaller loss in the diode rectifier (DC with ripple). The benefit appears to be "better THD" (?) I don't get it but as I said, I'm out of my league: I'm only licensed to +48V :) | |
| Sep 18, 2020 at 22:33 | comment | added | Michael | just added an edit again. the eval board datasheet for this part is interesting too. most of the schematics in there show a 1uf cap on the output but the BOM doesnt show it and I dont see it on the layout. but the output waveform I put in the edit makes me believe there is. Maybe it's external to the eval board when they did the testing though.. link: nxp.com/docs/en/user-guide/UM11348.pdf | |
| Sep 18, 2020 at 22:18 | comment | added | td127 | There's probably something I'm missing about the PFC Control mechanism on the output. That (Power Factor Correction) is something I'm not at all familiar with so am suddenly in over my head. Maybe the cap we've been looking at is really associated with the PFC circuit.. | |
| Sep 18, 2020 at 21:57 | comment | added | Michael | So in terms of efficiency when DC is desired at the output, I guess this half as an improvement as I thought it was over a typical diode bridge. Since the diode-cap combo is needed at the end you're still getting a one diode drop. Still an improvement over two and is still really good for high power applications im sure but was thinking you'd save on two diode drops. | |
| Sep 18, 2020 at 19:51 | history | answered | td127 | CC BY-SA 4.0 |