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n914va(at)bvunet.net
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 Posted: Mon Nov 12, 2007 12:36 pm Post subject: Power schematic for review |
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Here's my plan for my Europa with a ULPower Ul260i powerplant. Comments please. Thank you.
Vaughn Teegarden
Hoping to finish before I die
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Download |
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EuropaUL26iSchematic.pdf |
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303.68 KB |
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nuckolls.bob(at)cox.net
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| Posted: Mon Nov 12, 2007 2:41 pm Post subject: Power schematic for review |
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At 03:34 PM 11/12/2007 -0500, you wrote:
| Quote: | Here's my plan for my Europa with a ULPower Ul260i powerplant. Comments
please. Thank you.
|
Wondering why you left off OV protection?
Bob . . .
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( "Problems are the price of progress. )
( Don't bring me anything but trouble. )
( Good news weakens me." )
( -Charles F. Kettering- )
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vaughnray(at)bvunet.net
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| Posted: Mon Nov 12, 2007 7:28 pm Post subject: Power schematic for review |
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This is the message That I got from ULPower when I asked them about
overvoltage protection.
"The Regulator has an internal over-voltage shunt built in."
Vaughn
--
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nuckolls.bob(at)cox.net
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| Posted: Mon Nov 12, 2007 8:41 pm Post subject: Power schematic for review |
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At 10:25 PM 11/12/2007 -0500, you wrote:
| Quote: |
<vaughnray(at)bvunet.net>
This is the message That I got from ULPower when I asked them about
overvoltage protection.
"The Regulator has an internal over-voltage shunt built in."
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??? Hmmmm . . . This would be a first for
PM rectifier/regulator products that I'm
aware of. Can you tell me the manufacturer
and part number for this device?
Bob . . .
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vaughnray(at)bvunet.net
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| Posted: Mon Nov 12, 2007 9:01 pm Post subject: Power schematic for review |
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I will see if I can find that information.
Vaughn
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Peter H
Joined: 20 Mar 2007
Posts: 197
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| Posted: Mon Nov 12, 2007 9:03 pm Post subject: Power schematic for review |
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Bob, Vaughn
Maybe they are referring to the regulator circuit itself but we need to
protect against the failure of this component.
Peter H
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Eric M. Jones
Joined: 10 Jan 2006
Posts: 565
Location: Massachusetts
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| Posted: Tue Nov 13, 2007 9:14 am Post subject: Re: Power schematic for review |
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| Quote: | <vaughnray>
This is the message That I got from ULPower when I asked them about
overvoltage protection.
"The Regulator has an internal over-voltage shunt built in." |
An over-voltage protector comes in two basic flavors.
1) A load dump over-voltage is 60V for 500 mS (or so). This is not hard to protect against.
2) A hard failure of the regulator or alternator, in the worst case puts out 60V (or more!) forever. OUCH.
Both problems need amelioration.
"I tried being reasonable, I didn't like it."
---Clint Eastwood
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_________________
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge, MA 01550
(508) 764-2072
emjones(at)charter.net |
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