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Old 19th May 2019, 11:41 PM   #91
imnewbie is offline imnewbie  United States
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Originally Posted by vvs07 View Post
Thank you very much. Which PT did you use?
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Old 6th June 2019, 06:40 AM   #92
Hook is online now Hook  United States
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Default Diode help

I am planning to use the diode section of the board. I noted that on the first page of the build guide 30A, 200V minimum diodes are recommended. I was not sure if this referred to forward or reverse voltage and current. Looking at Mouser's parameters listed for TO220 devices it looks like this is forward current and reverse voltage. Can anyone confirm this?

Based on Jeff Young's advice about "fast" and "soft" diodes I came up with the diodes linked below. They exceed the suggested minimums and the data sheet for them touts them as fast and soft. Will these diodes work well for the PSU?

https://www.mouser.com/datasheet/2/4...m3-1351050.pdf

Last edited by Hook; 6th June 2019 at 06:53 AM. Reason: link was incorrect
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Old 6th June 2019, 11:51 AM   #93
6L6 is offline 6L6  United States
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Those look good.
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Old 6th June 2019, 07:06 PM   #94
Hook is online now Hook  United States
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Oops I thought I had this posted in the universal PSU forum, guess I had too many tabs open. Thanks for responding and correctly guessing what I am building.

Last edited by Hook; 6th June 2019 at 07:07 PM. Reason: Removed emoticons not supported by forum
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Old 7th June 2019, 08:32 PM   #95
vdi_nenna is offline vdi_nenna  United States
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Just purchased a couple tubes of IRFP9140 and IRFP140 MOSFETs.
Need to match them. This instructional article says to bias to .2V across the MOSFET source resistor.

Is the actual parallel Source resistance actually .235 Ohm?
What's the actual current each mosfet sees?
What's the total bias for a push-pull F4 channel?

Thanks,

Vince
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Old 8th June 2019, 01:34 AM   #96
vdi_nenna is offline vdi_nenna  United States
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Can someone delete posts #95 and 96? I posted in the wrong thread.
Meant to post in the F4 Build Guide. I posted there.

Thanks,

Vince
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Last edited by vdi_nenna; 8th June 2019 at 01:37 AM.
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Old 15th July 2019, 02:27 PM   #97
Drummy66 is offline Drummy66
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Any chance of a A40 guide???
Or is there one and I just haven't found it?
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