PD or Iota for my upgrade?
I'm thinking about a converter and battery upgrade. The batteries will be wet cell lead acid 6 volt Possible T-105s or the 230AH, EGC2 from Sam's club. I'll probably go for four. (Does nayone have...
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The problem with the PD is that when in boost it will not supply rated current. It never supplies rated current because output voltage is unable to rise to 14.4V. Raising the voltage setpoint (as you suggested) will not help. If it's not capable of getting to 14.4V (at rated current), it will certainly not get there at 14.8V.
I believe the converter's problem is its front end. As you mention, the diodes peak charge to 170Vdc. The converter has an extremely hard time holding this voltage at max power. Voltage will drop and as a result the converter is not capable of holding 14.4V. The ac peak current gets very high. I haven't seen any PD that's capable of holding 14.4V at rated current when charging a battery.
If you're interested in charging at 14.7V then the Iota is the only low cost converter that I know of that does the job.
Sal
I believe the converter's problem is its front end. As you mention, the diodes peak charge to 170Vdc. The converter has an extremely hard time holding this voltage at max power. Voltage will drop and as a result the converter is not capable of holding 14.4V. The ac peak current gets very high. I haven't seen any PD that's capable of holding 14.4V at rated current when charging a battery.
If you're interested in charging at 14.7V then the Iota is the only low cost converter that I know of that does the job.
Sal
DryCamper11 wrote:
The fundamental operation is relatively simple. There are lots of bells and whistles, but ignoring those, the system takes the AC voltage and runs it through a full wave bridge to produce 170VDC unregulated.
It takes that voltage and chops it, sending the chopped voltage through a center tapped transformer to produce lower voltage AC that is sent through another bridge circuit to rectify back to DC and supply the output.
