We'd all have built-in headlight modulators!
Dude. Think about how that would work, and you'll see what a funny mental picture it is. Stroms tooling down the road with electrical systems on for one second, off for one second, on for two seconds, off for one second ...
Depending on the speed of modulation the battery would be enough of a buffer to hide the fluctuations.
I used to see a similar modulation affect on my KLR headlight when rolling down the highway. As I added load to the system, I could slow the modulation down or speed it up.
The point is I'm not positive that the strom charging system is a shunt type system. There are other ways to vary/regulate voltage. Shunting it is a pretty ancient way of doing it.
EDIT Think of it like this. Old style household dimmers used to be basically shunt type dimmers. They'd run the current through a variable resistor to change voltage and dim the lights. Modern household dimmers are switching regulators. When they are on full power it's full power to the light, but as you dim the lights it starts switching the power on and off to the light, but it's so fast you don't see a flicker, only a dimming of the light as the average voltage become lower. For an instant the bulb is getting full voltage then another instant its getting no voltage. My example of the gerbing thermostat is poor because of the long cycle times. But for a charging system the cycles could be in fractions of a second.
Last edited by Gramps; 07-27-2010 at 10:14 PM.