wn/homepage
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

change approach, too much m4

Browse Source
This commit is contained in:
Wolfgang Hottgenroth
2018-05-08 17:25:41 +02:00
parent 10e888649b
commit 54a933c83a
87 changed files with 256 additions and 2081 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
posts/2014-01-22.01/article.html
View File

@ -1,15 +1,6 @@
<html>
<head>
<title>Projects - just for fun</title>
</head>
<body>
define(`TITLE', `Another (better) MBus-Master, Part 4')
define(`DATE', `2014-01-22')
define(`CONTENT', `
Now everything is on one board. A step-up power supply, based on the LM2577, has been added to provide the unusual voltage of 35V required for the bus. Thus, a simple 12V-DC-walk-plug could be used to power the system. However, this introduced some difficulties - hold on.
<a href="http://a385e-5.de/wp-content/uploads/2014/01/Foto-31-e1390381553417.jpg"><img src="http://a385e-5.de/wp-content/uploads/2014/01/Foto-31-e1390381553417-300x225.jpg" alt="Foto 3" width="300" height="225" class="alignnone size-medium wp-image-377" /></a>
@ -32,15 +23,11 @@ This is with the SMPS, with an additional load of 200mA:
<a href="http://a385e-5.de/wp-content/uploads/2014/01/with_smps_2.png"><img src="http://a385e-5.de/wp-content/uploads/2014/01/with_smps_2-300x219.png" alt="with_smps_2" width="300" height="219" class="alignnone size-medium wp-image-375" /></a>
The receive signal can still be recognized and the comparator does its job, but the difference is impressive - although not really unexpected.
The receive signal can still be recognized and the comparator does it'`s job, but the difference is impressive - although not really unexpected.
Here is it with the SMPS again, now without additional load:
<a href="http://a385e-5.de/wp-content/uploads/2014/01/with_smps_noload.png"><img src="http://a385e-5.de/wp-content/uploads/2014/01/with_smps_noload-300x219.png" alt="with_smps_noload" width="300" height="219" class="alignnone size-medium wp-image-374" /></a>
So, the SMPS must either be strictly separated from the remaining circuit on one board or even better be placed on a separate board - however, putting the SMPS and the receive recognition so close to each other was - rethinking it now - asking for trouble.
</body>
</html>
')