<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
Horace Heffner wrote:
<blockquote
cite="mid:470310B7-6543-4E39-95E9-88F68B50FC6D@mtaonline.net"
type="cite"><br>
On Feb 4, 2009, at 11:40 AM, Dr Stiffler wrote:
<br>
<br>
<br>
<blockquote type="cite">Why not just disconnect C1 and leave this
connection open, but you will indeed need D1 & D2. Works well with
80 super white LED's.
<br>
</blockquote>
<br>
C1 exists at some value whether shown or not. By pushing up the value
of C1 the current duration is pushed up and the frequency dropped, and
the peak voltage controlled/limited. The current still sloshes back
and forth, but the experiment is more controlled.
<br>
<br>
D1 and D2 might not be needed in the configuration shown depending on
the values of L1 and C1. Also, the fact the current path through an
array has low resistance takes the reverse voltage load off the opposed
array.
<br>
<br>
<br>
<blockquote type="cite"><br>
D1 and D2 can be Vishay 1N4148's which are indeed rated at 500mA
forward peak and 300mA If.
<br>
</blockquote>
<br>
I don't see the significance of those specific values. I proposed no
specific values.
<br>
<br>
<br>
<blockquote type="cite">These are the diodes you felt did not exist
or at least questioned my specs; in a comment on vortexx.
<br>
</blockquote>
<br>
I don't recall this at all. Do you have a reference? This doesn't
sound like me. I doubt that I would question the existence of some kind
of diode. In fact, I think I have a supply of 1N4148's on hand
somewhere, or something similar with a 1000 PIV rating.
<br>
<br>
</blockquote>
<b><font color="#cc0000">Well I would love some of these, do you have a
link to a specific product?<br>
<br>
The Vishay is my preferred diode and it has a Vrrm=100V - Vr=75V -
Isfm=2A - Ifrm=500mA - If=300mA.<br>
<br>
Tried most all I could get my hands on and this little guy is needed in
both SEC and ESEC circuits as is the MPSA06 from a particular
manufacture.<br>
<br>
Anyway where can I get some 1N4148's @1kv to test?<br>
<br>
Thanks.<br>
</font></b>
<blockquote
cite="mid:470310B7-6543-4E39-95E9-88F68B50FC6D@mtaonline.net"
type="cite"><br>
<blockquote type="cite">I know of over 100 people that have driven at
least 50 SW's this way. Why close the old loop.
<br>
</blockquote>
<br>
To measure the source of apparent brightness effects. Also, it would
eliminate energy loss due to capacitive linkage to the environment and
thus heating of the environment.
<br>
<br>
<blockquote type="cite"><br>
Buy the way JameCo sells the Vishay 1N4148 and they take CE well over
350 volts. Strange little guys.
<br>
<br>
<br>
-- <br>
************************************************************************
<br>
CONFIDENTIALITY NOTICE
<br>
This e-mail and any attachment are confidential and may be privileged
<br>
or otherwise protected from disclosure. It is solely intended for the
<br>
person(s) named above. If you are not the intended recipient, then
<br>
reading, use, disclosure, copying or distribution of all or parts of
<br>
this e-mail or associated attachments is strictly prohibited. If you
<br>
are not the intended recipient, please notify the sender immediately
<br>
by replying to this message and delete this e-mail and any attachments
<br>
permanently from your system.
<br>
<br>
NON-DISCLOSURE AGREEMENT
<br>
All parties under a non-disclosure agreement with Dr. Ronald Stiffler
<br>
and/or Stiffler Scientific are hereby notified that the contents in
<br>
this e-mail and any attachments hereto are covered under one or more
<br>
non-disclosure agreements and restrictions as set forth therein.
<br>
************************************************************************
<br>
<br>
_______________________________________________
<br>
NewCandle mailing list
<br>
<a class="moz-txt-link-abbreviated" href="mailto:NewCandle@ipdiscover.com">NewCandle@ipdiscover.com</a>
<br>
<a class="moz-txt-link-freetext" href="http://ipdiscover.com/mailman/listinfo/newcandle_ipdiscover.com">http://ipdiscover.com/mailman/listinfo/newcandle_ipdiscover.com</a>
<br>
</blockquote>
<br>
Please be advised that the content of any correspondence to me, Horace
Heffner, is placed into public domain unless otherwise specified by
prior written agreement. I can be contacted at: <a class="moz-txt-link-abbreviated" href="mailto:hheffner@mtaonline.net">hheffner@mtaonline.net</a>.
However, by sending unsolicited information to this address, the sender
agrees to place it in public domian and to make it available for
immediate posting to public news forums.
<br>
<br>
Best regards,
<br>
<br>
Horace Heffner
<br>
<a class="moz-txt-link-freetext" href="http://www.mtaonline.net/~hheffner/">http://www.mtaonline.net/~hheffner/</a>
<br>
<br>
<br>
<br>
<br>
<br>
_______________________________________________
<br>
NewCandle mailing list
<br>
<a class="moz-txt-link-abbreviated" href="mailto:NewCandle@ipdiscover.com">NewCandle@ipdiscover.com</a>
<br>
<a class="moz-txt-link-freetext" href="http://ipdiscover.com/mailman/listinfo/newcandle_ipdiscover.com">http://ipdiscover.com/mailman/listinfo/newcandle_ipdiscover.com</a>
<br>
<br>
</blockquote>
<br>
<br>
<pre class="moz-signature" cols="72">--
************************************************************************
CONFIDENTIALITY NOTICE
This e-mail and any attachment are confidential and may be privileged
or otherwise protected from disclosure. It is solely intended for the
person(s) named above. If you are not the intended recipient, then
reading, use, disclosure, copying or distribution of all or parts of
this e-mail or associated attachments is strictly prohibited. If you
are not the intended recipient, please notify the sender immediately
by replying to this message and delete this e-mail and any attachments
permanently from your system.
NON-DISCLOSURE AGREEMENT
All parties under a non-disclosure agreement with Dr. Ronald Stiffler
and/or Stiffler Scientific are hereby notified that the contents in
this e-mail and any attachments hereto are covered under one or more
non-disclosure agreements and restrictions as set forth therein.
************************************************************************
</pre>
</body>
</html>