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Nesto oko hladjenja...
#46
Da dodamo još i situaciju kada taj isti mosfet radi u prekidačkom režimu rada.

Pri PWM_ON od 16uS na periodi od 50uS dobijamo oko 9App (24 / 2,4 + 0,27)
odnosno RMS vrednost struje od 5,07A

Disipacija (Peak) je oko 22W (neračunajući veoma uske pikove koji dostižu do 60W)
Srednja vrednost disipacije je sada oko 7.3W

Iz Heatsink calculatora (isti uslovi kao u prošlom primeru)
Temperatura hladnjaka sada iznosi oko 32C
Temperatura kućišta oko 35C
Temperatura pelete oko 40C

==========

Ovde se vidi koliko su manji gubici u prekidačkom režimu rada mosfeta nego u lineranom.
Ali ne može se svuda upotrebiti prekidački režim rada ...


Pozz
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Messages In This Thread
Nesto oko hladjenja... - by Macola - 04-11-2013, 10:42 PM
RE: Nesto oko hladjenja... - by Macola - 04-08-2015, 04:00 AM
RE: Nesto oko hladjenja... - by Macola - 04-08-2015, 09:02 PM
RE: Nesto oko hladjenja... - by Macola - 04-08-2015, 11:19 PM
RE: Nesto oko hladjenja... - by Želja - 05-04-2016, 10:20 PM
RE: Nesto oko hladjenja... - by Želja - 05-05-2016, 10:33 AM
RE: Nesto oko hladjenja... - by Vlajko - 05-06-2016, 01:22 AM
RE: Nesto oko hladjenja... - by Vlajko - 05-06-2016, 01:54 AM
RE: Nesto oko hladjenja... - by Želja - 05-06-2016, 11:07 AM
RE: Nesto oko hladjenja... - by mikikg - 05-06-2016, 11:29 AM
RE: Nesto oko hladjenja... - by mikikg - 05-06-2016, 12:15 PM
RE: Nesto oko hladjenja... - by Želja - 05-06-2016, 12:19 PM
RE: Nesto oko hladjenja... - by Želja - 05-31-2016, 01:45 PM
RE: Nesto oko hladjenja... - by mikikg - 05-06-2016, 12:48 PM
RE: Nesto oko hladjenja... - by mikikg - 05-31-2016, 04:47 PM
RE: Nesto oko hladjenja... - by Dragan83 - 05-31-2016, 07:56 PM
RE: Nesto oko hladjenja... - by Želja - 05-31-2016, 08:31 PM
RE: Nesto oko hladjenja... - by Dragan83 - 05-31-2016, 08:37 PM
RE: Nesto oko hladjenja... - by Dragan83 - 05-31-2016, 08:35 PM
RE: Nesto oko hladjenja... - by Želja - 05-31-2016, 09:00 PM
RE: Nesto oko hladjenja... - by Dragan83 - 05-31-2016, 09:17 PM
RE: Nesto oko hladjenja... - by Dragan83 - 06-01-2016, 05:23 PM
RE: Nesto oko hladjenja... - by Želja - 06-01-2016, 05:42 PM
RE: Nesto oko hladjenja... - by Želja - 06-01-2016, 07:39 PM
RE: Nesto oko hladjenja... - by Želja - 06-01-2016, 08:10 PM
RE: Nesto oko hladjenja... - by Dragan83 - 06-03-2016, 08:47 PM
RE: Nesto oko hladjenja... - by emiSAr - 06-03-2016, 10:00 PM
RE: Nesto oko hladjenja... - by Želja - 06-04-2016, 08:24 AM
RE: Nesto oko hladjenja... - by mikikg - 06-04-2016, 08:54 AM
RE: Nesto oko hladjenja... - by Želja - 06-04-2016, 09:12 AM
RE: Nesto oko hladjenja... - by mikikg - 06-04-2016, 09:22 AM
RE: Nesto oko hladjenja... - by mikikg - 06-04-2016, 09:23 AM
RE: Nesto oko hladjenja... - by Želja - 06-04-2016, 09:30 AM
RE: Nesto oko hladjenja... - by mikikg - 06-04-2016, 09:33 AM
RE: Nesto oko hladjenja... - by Želja - 06-04-2016, 09:42 AM
RE: Nesto oko hladjenja... - by mikikg - 06-04-2016, 09:44 AM
RE: Nesto oko hladjenja... - by Želja - 06-04-2016, 09:48 AM
RE: Nesto oko hladjenja... - by Želja - 06-04-2016, 10:43 AM
RE: Nesto oko hladjenja... - by Želja - 06-04-2016, 11:37 AM
RE: Nesto oko hladjenja... - by Želja - 06-04-2016, 11:57 AM
RE: Nesto oko hladjenja... - by mikikg - 06-04-2016, 11:41 PM
RE: Nesto oko hladjenja... - by Želja - 06-05-2016, 09:44 AM
RE: Nesto oko hladjenja... - by Želja - 06-05-2016, 05:05 PM
RE: Nesto oko hladjenja... - by mikikg - 06-05-2016, 05:23 PM
RE: Nesto oko hladjenja... - by Želja - 06-05-2016, 05:36 PM
RE: Nesto oko hladjenja... - by Želja - 06-05-2016, 05:38 PM
RE: Nesto oko hladjenja... - by mikikg - 06-05-2016, 06:06 PM
RE: Nesto oko hladjenja... - by Želja - 06-05-2016, 06:08 PM
RE: Nesto oko hladjenja... - by mikikg - 06-05-2016, 07:53 PM
RE: Nesto oko hladjenja... - by Želja - 06-05-2016, 08:17 PM
RE: Nesto oko hladjenja... - by Khadgar2007 - 06-05-2016, 08:29 PM
RE: Nesto oko hladjenja... - by Dragan83 - 06-06-2016, 08:11 PM
RE: Nesto oko hladjenja... - by Želja - 06-06-2016, 08:35 PM
RE: Nesto oko hladjenja... - by Dragan83 - 06-06-2016, 10:12 PM
RE: Nesto oko hladjenja... - by bogdan.kecman - 06-08-2016, 10:55 PM
RE: Nesto oko hladjenja... - by bogdan.kecman - 06-08-2016, 10:57 PM
RE: Nesto oko hladjenja... - by bogdan.kecman - 06-08-2016, 11:00 PM
RE: Nesto oko hladjenja... - by bogdan.kecman - 06-08-2016, 11:02 PM
RE: Nesto oko hladjenja... - by bogdan.kecman - 06-08-2016, 11:04 PM
RE: Nesto oko hladjenja... - by bogdan.kecman - 06-08-2016, 11:06 PM
RE: Nesto oko hladjenja... - by bogdan.kecman - 06-08-2016, 11:13 PM
RE: Nesto oko hladjenja... - by bogdan.kecman - 06-08-2016, 11:16 PM
RE: Nesto oko hladjenja... - by bogdan.kecman - 06-08-2016, 11:23 PM
RE: Nesto oko hladjenja... - by bogdan.kecman - 06-08-2016, 11:28 PM
RE: Nesto oko hladjenja... - by Macola - 06-09-2016, 11:56 AM
RE: Nesto oko hladjenja... - by Millan - 06-09-2016, 12:44 PM
RE: Nesto oko hladjenja... - by Braca - 06-09-2016, 03:09 PM
RE: Nesto oko hladjenja... - by TDA - 06-09-2016, 02:16 PM
RE: Nesto oko hladjenja... - by bogdan.kecman - 06-09-2016, 08:11 PM
RE: Nesto oko hladjenja... - by bogdan.kecman - 06-09-2016, 08:27 PM
Nesto oko hladjenja... - by HomeMadeAudioProject - 05-07-2013, 06:36 PM
Nesto oko hladjenja... - by Macola - 05-07-2013, 06:46 PM
Nesto oko hladjenja... - by HomeMadeAudioProject - 05-07-2013, 06:47 PM
Nesto oko hladjenja... - by HomeMadeAudioProject - 01-13-2014, 06:01 PM
Nesto oko hladjenja... - by Macola - 01-13-2014, 08:49 PM

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