[Teaa-l] EV update from Hickory
rtg at ee.duke.edu
Tue Oct 4 11:17:59 EDT 2005
- Greetings -
Joe Capowski, sir, you have made several good points. About the DC-DC
converter, two options occur to me. First, how about a diode between
converter and auxiliary battery in the fashion of the diodes found in
the alternator used on an ICE. The converter would be set 0.65 V higher
to accommodate the extra diode drop. No current would flow back from
battery to converter.
Second and this requires a robust keyed power switch (ignition switch)
is to connect the converter on the load side of the switch along with
radio, turn signals, etc. The auxiliary battery will be on the source
side of the switch. This may require a double-pole switch so that the
motor controller as a 12 V load will not be connected to to the ooutput
of the DC-DC converter.
Maybe I should think about this some more.
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