Peak and Hold

[Jeff Webb]

Stewart Prince wrote:
> 
> I finally found the part number for the Hitachi peak and hold injector driver.
> 
> HA13705
> If anyone is interested, I'll FTP it to the diy site.
> S. Prince

Thanks for the part number.  I found the data sheet with a web search. 
It wouldn't hurt to FTP it to the DIY site, though.  From a quick look
at the data sheet, it looks like the part is a current limited saturated
driver.  Maybe I missed something, though.

Jeff Webb

http://www.hitachi.co.jp/Sicd/English/Products/senyou/eHA13705C.pdf






> 
> Ron Schroeder wrote:
> 
> > At 09:23 AM 4/12/01 -0400, you wrote:
> > >
> > >Nifty idea. This of course begs the question: How much
> > >faster do they open at 24v vs. 12v? This is something
> > >that I've been wanting to try with TBI PnH's. Just not
> > >enough hours in the day. . .
> > >
> > >BobR.
> >
> > Hi Bob,
> >
> > In about 60% of the time but not only is the peak current higher but I am
> > doing some compensation for the inductance to get a faster current rise
> > time too.
> >
> > Ron Schroeder
> > WD8CDH
> > E. E. S.
> > wd8cdh at bnl.gov
> > rjs at bnl.gov
> > ron at 112motors.com
> > 631 344-4561 Day
> > 631 286-5677 Nite
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> 
> --
> STEWART PRINCE
> 
> PROFESSOR, MECHANICAL ENGINEERING
> 
> CALIFORNIA STATE UNIVERSITY, NORTHRIDGE
> 
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