Forum Discussion
jrnymn7
Jan 12, 2015Explorer
"Sorry I do not understand the "charging with a charger" statement"
I'm referring to regular everyday charging with a charger, i.e; any charger that plugs into 120vac, be it a portable, or a converter/charger, etc.
An 80a charger converts/bucks 120v/20a service into the appropriate charging volts and amps. The charger is limited by it's V setpoint, and current limit. Likewise, an mppt controller converts/bucks X volts and Y amps into usable volts and amps, and is limited by its voltage setpoint and current limit. But I'm wondering if it's really that simple, or is there more to it?
And I guess the relevant question would be, at what point would a system (array plus mppt) be over-sized, to a point where mppt would lose any advantage over pwm?
I'm referring to regular everyday charging with a charger, i.e; any charger that plugs into 120vac, be it a portable, or a converter/charger, etc.
An 80a charger converts/bucks 120v/20a service into the appropriate charging volts and amps. The charger is limited by it's V setpoint, and current limit. Likewise, an mppt controller converts/bucks X volts and Y amps into usable volts and amps, and is limited by its voltage setpoint and current limit. But I'm wondering if it's really that simple, or is there more to it?
And I guess the relevant question would be, at what point would a system (array plus mppt) be over-sized, to a point where mppt would lose any advantage over pwm?
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