For every electric device there is a voltage range within it should be runned. Imagine there is a Tesla that runs at a Voltage of 375V and as long as there is enough capacity in its batterypack left to back it up, everything is fine. But as the Batteries get discharged, the Voltage is dropping lower and lower, how is there enough power to drive further? With decreasing voltage and current over discharge time, the maximum power drops and so does maximum of speed one can go?
Of course the batteries can be arranged parallel or in series, but i can´t imagine this can prevent the batterypack to drop below a certain voltage all the time!
Current to any load, is due to the available charge in battery, and would try to maintain the source voltage. When available charge reduced the limit, first voltage reduction would be the cause to maintain current to load, and appliance would work if it is with in the tolerance limit of voltage......
Most of these equipment have DC/DC convertors (in case of a phone), or an invertor (an invertor is a DC/AC convertor to drive the motor of the electric car) that negate the drop in source voltage, ie they drive the load (the output DC or AC voltage) such that the resulting output is invariant when the source voltage remains within a certain range.
Of course, there are also (cheaper) appliances where the voltage drop results in a performance drop. (eg toys, cheap bike lights, etc.)
- Badges
- Science topic
- Similar topics
- Agricultural Science
- Environmental Science