Injector driver chips? Where?

Sandy sandyg at interramp.com
Tue Feb 27 17:49:41 GMT 1996


At 10:07 AM 2/27/96 -0500, you wrote:
>--------
>
>   In message <9602271012.AA25333 at benjy> , you write:
> 
>| > 
>| > Look at national's LM1949, it is a single piece part, but is very flexible.
>| > It is being tested to also see if it will work as an ignition driver. Very
>| > flexible, and not to expensive.
>| > 
>| > Sandy
>| > 
>| 
>| Beware - this chip does not operate as a switch mode controller and so the
>| darlington dissipates a lot of heat! It does allow for a low part count 
>| solution but fixes the ratio of peak to hold current to 4.
>
>No... take another look at the 7th page of the data sheets. I
>was playing with this last night.
>
>                                       John S Gwynne
>                                          Gwynne.1 at osu.edu

I saw that too! but it looks like it has the makings of an old spark gap
transmitter, with all the associated RFI problems that you could imagine.

Sandy




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