Yes. An olde electromechanical regulator does that. Modern PWM regulators (such as I described earlier) do that much more efficiently and accurately.Just to make sure. All I really need to do it turn the field on below 14.5 volts and off above 14.5 volts. Or in the case of two 8 volters in series 19.3 volts?
As per post#3Yes. An olde electromechanical regulator does that. .
Duty cycle varies. As the demand goes up, the ratio of ON/OFF time is increased to as high as 99%. When I worked w/ CO2 Lasers driven by RF power, the drive for the Class E RF drivers were also controlled using PWM.I'm trying to figure out how PWM would be better. Seems like as it approaches the final value it is kind of PWM anyway as it pops above and below 14.5 volts..
The PWM regulators I mentioned don't appear to make any noticeable noise. At least, I've never noticed any in my '69 Plymouth's AM/FM radio, even when DX-ing on AM BC or on my ham HF transceiver. IIRC, the switch rate is actually pretty low.PWM has a fixed switching frequency just the pulse width varies, whereas the older basic method the frequency varies, it is still effective though, just offers the possibility of the varying EMI if you had a radio etc hooked up to it..
Max.
As I mentioned, the PWM type replaced the electronic version of the mechanical regulator that came out as an intermediate measure after RFI was experienced, the PWM type came on the scene as a noise free replacement.The PWM regulators I mentioned don't appear to make any noticeable noise. At least, I've never noticed any in my '69 Plymouth's AM/FM radio, even when DX-ing on AM BC or on my ham HF transceiver. IIRC, the switch rate is actually pretty low.
Yep, 100,000,000 automobiles cant be wrong...I want to build a regulator for my little portable generator. (battery, small engine, alternator) In looking on the internet it looks like they just turn the field on below 14.6 volts and off above 14.6. Is it really that simple?