Igniters => DIS

[Bob Wooten]

Steve,

I found the driver in the hardware section but the only thing in the
download was a BOM (for the Injector driver & the coil driver).  any ideas
where I can find a print?  I downloaded the spec sheet for the device from
the National site but I don't see how it can control ON time.  it does have
a timer circuit in it but it only forces the device to goto the "hold"
current condition after one time constant & this is about 1/4 of the peak
current.  unless there is a way to force the device to think that the hold
current is 0.

thanks
BW

-----Original Message-----
From: owner-diy_efi at diy-efi.org [mailto:owner-diy_efi at diy-efi.org]On
Behalf Of steve ravet
Sent: Wednesday, February 28, 2001 6:41 PM
To: diy_efi at diy-efi.org
Subject: Re: Igniters => DIS




Bob Wooten wrote:
>
> hmmmmmmmmm, there has to be a simple way to time this & keep $ & component
> count down.  makes me think, & keeps the cob webs out of the head.
>
> thanks amigo
> BW

Try the LM1949 from NAt Semi.  A smart coil driver, it starts off with
full voltage and reduces it as the coil charges.  There's an example
circuit (Sandy's driver board) on the efi332 page.

--steve


--
Steve Ravet
steve.ravet at arm.com
ARM,Inc.
www.arm.com
----------------------------------------------------------------------------
To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org


----------------------------------------------------------------------------
To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org