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Ideal bridge rectifier GB
Ideal bridge rectifier GB
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Old 12th February 2019, 09:35 AM   #21
jan.didden is offline jan.didden  Europe
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The documentation I saw at the time this started to take off showed less harmonics, because the the charging opening angle is wider. I think there's a sim test circuit available.

Edit:Of course, see attached.

Jan
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File Type: asc LT4320_DC2465A.asc (6.9 KB, 79 views)
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Last edited by jan.didden; 12th February 2019 at 09:39 AM.
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Old 12th February 2019, 09:55 AM   #22
jan.didden is offline jan.didden  Europe
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Moderators, maybe move this tech part of the tread away from the GB thread?

Jan
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Old 12th February 2019, 11:47 AM   #23
tvicol is offline tvicol  Europe
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Updated first page with two youtube videos about synchronous rectification.

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Old 12th February 2019, 04:19 PM   #24
janho12345 is offline janho12345  Germany
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Definitely interested!
Need cool and low drop rectifier.
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Old 12th February 2019, 04:44 PM   #25
DPH is offline DPH  United States
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Quote:
Originally Posted by analog_sa View Post
Have you considered using GaN transistors?
The "switching" frequency of this synchronous rectification circuit and the modest voltage requirements herein basically wastes any advantage SiC/GaN transistors provide. This is definitely a place to look for slower plain-Jane Si very-low R_dson/modest C_gs switching transistors sized appropriately for the load requirements.

When you want a high efficiency >1 MHz switching power supply network, then the exotics make a lot more sense.
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Old 12th February 2019, 06:28 PM   #26
tvicol is offline tvicol  Europe
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Quote:
Originally Posted by xrk971 View Post
...
One thing I am unsure of, is how the transients of the resulting sawtooth wave looks after the bulk cap? Does it even look like a diode sawtooth? Or will it be a total mess? ...
At full load on my Zeno regulator. Measured directly on the cap after Saligny.

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Old 13th February 2019, 07:32 AM   #27
tvicol is offline tvicol  Europe
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GB list is open till 1st March.

Saligny - Ideal bridge - open till 1st March - Google Sheets

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Old 13th February 2019, 05:53 PM   #28
pinnocchio is offline pinnocchio  Canada
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Saw this a few months ago but very happy someone is bringing it to DIY possibilities!
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Old 14th February 2019, 07:12 PM   #29
Destroyer OS is offline Destroyer OS  United States
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Ideal bridge rectifier GB
Cool!
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Old 14th February 2019, 08:18 PM   #30
dhaen is offline dhaen  Europe
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Just added 2 to the sheet
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