Re: what is the max bus voltage, 300V?

[Victor Tikhonov <vtikhono@lsil.com>]

Lee Hart wrote:
> 
> >> normal cars don't have regen; they get along just fine.
> 
> Jon "Sheer" Pullen wrote:
> > Sure they do. Take your foot off the throttle in any normal car and
> > the engine will turn into a compressor, slowing the car down and
> > heating up the coolant.
> 
> The equivalent of this is plug or dynamic braking for an EV (burning up
> the excess energy as heat). This is easier than regenerative braking
> (capturing the energy in the battery). The common Curtis controllers
> have this as a standard feature.
> 
> > On the other hand, 336 volts is a lot more likely to do permanant
> > damage to you than 120.
> 
> But, we deal with 240vac (which is 340v peak) in our homes all the time.
> Our microwave ovens run on 3000vdc, our cars have 15kv on the spark
> plugs, and our TV sets have 25kv on the picture tube. High voltage is
> safe if properly packaged.

I must compliment Lee. For each statement he always finds counter-
arguments (which is natural - everything has flip side). I just think,
imagine if someone would make a series of statements (verbatim as Lee
just did) first. Lee would find counter arguments to each of such 
"his own statements" in no time, should they come first from 
someone else.

Often each paragraph starts from "But...". I've never seen a single
post from anyone on the list for as long as I subscribe, to which
Lee would say "Agreed", "Agreed", ... after each paragraph :-)
 
> > AC has certain attributes which lend themselves to a wide power band.
 
> For example?

Linear torque from zero to about half of max RPM.

Lee, I think I know your response: "But, you can make controller 
do the same to a DC motor! it's not the property of the motor itself"

Sure. Just for some reason no one does it. And it's desirable.

OK, your turn, Lee... :-)