Quote:
Originally Posted by Mark McLeod
The two PDP protected 12v & 24v outputs are good down to about 4.5v, maintaining their 12v/24v.
The other PDP outputs get cut off at around 5.5v.
Beware sharp sudden spiky dips at low voltages.
See Power Distribution Board.pdf, pages 6 & 7 Specifications for minimum voltages for the 24v protected supply, 12v protected supply and 5v (as well as all regular 12v-direct battery) outputs. |
Thanks. I should have looked for the manual myself.
In practice, do they have caps on the inputs to survive small spikes that dip below these values or does noise make the radio go dark?
Also, have people had any success monitoring battery voltage and then modifying motor outputs to prevent such brown outs? It seems like it would be reasonably straight forward: when battery voltage dips below X find the largest users of current (probably wheel motors) and scale their output back until the battery voltage recovers. With a reasonably fast loop time, I suppose that we can keep from browning out in the first place (you'll lose power on the motors but you stay connected -- seems like a bargain worth making).
Joe J.