Testing the h bridge.

See links to read the tutorial I followed. I’ll update a parts list soon and post better images. This circuit is half an h bridge and implements power on and forward current only (no reverse).

I need to do sone evaluation to determine if the resistors are correct and if the transitors are handling the heat.

Michael Jackson in the news.

sqlite> SELECT strftime('%Y/%m', date) AS date, SUM(CASE WHEN content like '%Michael Jackson%' THEN 1 ELSE 0 END) AS count FROM articles GROUP BY date ORDER BY date DESC;
date|count
2009/07|54
2009/06|94
2009/05|3
2009/04|1
2009/03|0
2009/02|1
2009/01|0
2008/12|1
2008/11|4
2008/10|0
2008/09|0
2008/08|1
2008/07|0
2008/06|0
2008/05|0
2008/04|0
2008/03|0
2008/02|0
2008/01|0
2007/12|0
2007/11|2
2007/10|0
2007/09|0
2007/08|0
2007/07|2
2007/06|1
2007/05|0
2007/04|0
2007/03|0
2007/02|1
2007/01|1

Top 20 verbs.

sqlite> select count,phrase from phrases where pos = ‘V’ order by count desc limit 20;
count|phrase
19340|said/VBD
18704|says/VBZ
14604|is/VBZ
8383|was/VBD
6424|say/VBP
5495|writes/VBZ
5306|are/VBP
4992|be/VB
2672|were/VBD
2672|killing/VBG
2578|died/VBD

2476|has/VBZ
2034|accused/VBN
1928|including/VBG
1925|killed/VBN
1793|had/VBD
1734|’s/VBZ
1729|according/VBG
1610|saying/VBG
1563|found/VBD