RE: [CAD_CAM_EDM_DRO] Not-so-off-topic: rectifiers

Randy:

You can always use a rectifier having either a higher current or higher
standoff voltage rating in place of one having lower ratings. The higher
current unit may run a little cooler than the "correct" unit, while the
higher voltage unit may have a higher forward dropping voltage (Some of the
high voltage rectifiers are really several diodes connected in series, if
this is the case, the forward voltage drops of each rectifier are additive.
If you're going between 50 and 400 volts, only one diode is used and the
forward voltage drop is essentially constant). There's really no downside,
other than cost.

-- Jerry

-----Original Message-----
From: Randy Gordon-Gilmore [mailto:zephyrus@...]
Sent: Tuesday, July 10, 2001 2:03 AM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] Not-so-off-topic: rectifiers


When spec'ing a bridge rectifier for a linear power supply (say, using a
24V 10A transformer) is there any harm in using an over-spec'd one? Any
benefit? Prices for the square kind seem pretty flat from, say, 15A 50V to
50A 400V...

Best regards,

Randy

Randy Gordon-Gilmore ,----.___________ ______________ _________________
ProtoTrains // = = === == || == == == = || == == == = == =|
Rio Vista, CA, USA /-O==O------------o==o------------o==o-----------o==o-'
zephyrus@... http://www.rickadee.net/~zephyrus


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