AW: [EVGRAY] Re: buck plug ...

Database ID: 105809

2018-01-17T21:18:43+01:00

Sven Friedrich <[email protected]>

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Hello Ole, in the case of the large modules, the data are also given at 150 degrees Celsius. The fact is that the more powerful modules generate less heat. I have removed and used aluminum heatsinks from various defective converters. I do not want to install expensive water cooling as long as I can get hi power module cheaper. When I think about how small the igbts are on the huge radiators, there is a big thermal problem here. It is especially this circuit. I have seen in my other experiments yet no such burden. Otherwise, the thyristors, igbt modules have not even felt warm. The diodes I have now lowered with 200a modules on hand warming. Finally, I would like to further increase the coupling capacitors capacity so that I can transfer more energy while more heat is generated again. I think it will be short but very strong currents flow otherwise I can not explain that. Greetings Sven

Von Samsung Mobile gesendet

-------- Ursprüngliche Nachricht --------
Von: "[email protected] [EVGRAY]" <[email protected]>
Datum:17.01.2018 20:49 (GMT+01:00)
An: [email protected]
Betreff: [EVGRAY] Re: buck plug ...

Hi Sven,

The max current given in the datasheets is when the surface of the device is held a 20 degrees Celcius. This requires water cooling. Else the current has to be derated according to the datasheet. Don't dissipate more power in the device than allowed according to the datasheet and ambient temperature. Use appropriate heat sink to dissipate the power.

Regards
Ole

---In [email protected], <s.friedrich@...> wrote :

Hello Hector,

why did you use these powerful diodes 180 amps, I'm assuming that thyristors must also be so stable.

I was lucky and cheap get a power block.

Is it only possible to perform diode plug experiments without the components dying the heat dead. It is of course possible to cool small components with huge cooling effort, the only question is what is cheaper.

Who still transverter experiments performs or experiment please report.

regards

Sven

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