DC-DC zo sietovky 2

[Miroslav Sinko]

Citam z DPS: 1993 DIGITAL EQUIP CORP. Na tych fotkach, to je ona.

Je novsia, ako tie, z ktorych som mal DPS05R09. Tie boli 1990-1991 a
este neobsahovali radic takejto integracie a prevedenia. Bohuzial tie
sietovky uz nemam, ani fotky, ale boli na nich radice UM9090 (DIL48) a
na druhom type sietoviek LNC011 (DIL40) + plno integracov 74..

miro

--- peter tesar <peter.tesar@centrum.sk> wrote:

> Zdravim,
> to aka stara sietovka bola?
> Prednedavnom som tu na pracovisku tiez zhanal stare sietovky za
> ucelom 
> vytazenia DCtoDC modulu z nich, aj som ziskal zopar kusov (takmer co 
> kus, to iny typ a obvykle sa na ne datasheety zhanaju velmi tazko),
> ale 
> takyto diskretny som nenasiel ani jeden.
> Peter Tesar.
> 
> 
> 
> Miroslav Sinko wrote:
> 
> >Dobry den,
> >
> >kedysi v aprili 2003 som tu pisal o DC-DC menici DPS05R09 zo starych
> >ISA sietoviek. Vtedy som bol neprijemne zaskoceny vlastnou spotrebou
> >naprazdno a potom aj nizkou ucinnostou pri zatazi.
> >
> >Teraz sa mi dostala do ruk dalsia ISA sietovka s menicom postavenym
> z
> >diskretnych suciastok:
> >http://www.za.gaya.sk/~sinkom/tmp/DCDC/DCDC_modul/
> >
> >Odber z 5V naprazdno je          11mA; Uvyst = 8.99V
> >Odber z 5V pri zatazi 100ohm je 172mA; Uvyst = 8.50V; Ivyst = 85mA
> >(logicky :-)
> >
> >Ucinnost za tychto podmienok vychadza 84%, pekne :-) Na druhej
> strane
> >pokles vystupneho napatia je vyssi.
> >
> >Na porovnanie namerane hodnoty DPS05R09 su v tu:
> >http://www.za.gaya.sk/~sinkom/tmp/DCDC/
> >
> >miro
> >
> >
> >
> >
> > 
>
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