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eRAM power requirements
- Subject: eRAM power requirements
- From: Land Shark <lndshrk@xxxxxxxxxxxx>
- Date: Sat, 9 Jan 1999 11:31:57 -0700
mark kibort wrote:
(a bunch of stuff about the ERAM)
Mark if you want real numbers.. go buy a wattmeter
and place it in circuit with your ERAM.
Then record the power drain.. DURING a test
Then get back to us... the results, I'm sure are
going to surprize you!
In both tests, you can't really determine the
drain, as the eRAM will drink power from the
battery until the battery is below XX.X volts
at which time the alternator charges and only
THEN does it require the power from the engine!
Ditto on the separate battery test.
If you start thinking of current as "water" and
a battery as a full city water tank, you'll get the
picture.
I've come to the conclusion that while you mean no
harm, you simply don't get how a cars charging
system works.. the battery acts like a big "capacitor"
in the system and you can take HUGE drains for a few
seconds without feeling them "now" .. you only feel
them when the charge occurs
(I guess this makes a battery like a credit card ;)
The other way to do it is to use a batteryless car,
but that would be VERY BAD with all the electronics
which havent been hardened.. so a wattmeter is the
way to go!
Jim
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