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18
Electronics/Cells_and_batteries.md
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@ -20,22 +20,32 @@ Cells and batteries can be connected to each other in electrical ciruits to incr
- parallel
- series-parallel
> The key thing to remember: **cells configured in series increases the overall voltage available** and **cells configured in parallel increases the overall current available**
### Series connections
With series connections we distinguish **series aiding** and **series opposing** configurations.
In the case of series aiding, cells are connected one in front of another with the positive terminal connecting to the negative terminal of the other in a line.
In the case of **series aiding**, cells are connected one in front of another with the positive terminal connecting to the negative terminal of the other in a line.
In this configuration the **same current flows through all the cells**. This is represented mathematically as follows ($T$ stands for time):
In this configuration the same current flows through all the cells, it is not accumulative. We represent this as follows:
$$
I_{T} = I_{1} + I_{2} + I_{3} \\
I_{T} = I_{1} + I_{2} + I_{3}
$$
The voltage is the sum of the individual cell voltages (represented here as [electrical field](/Electronics/Physics_of_electricity/Voltage.md#distinguishing-voltage-from-electric-field)).
However the voltage is accumulative: it is the _sum_ of the individual cell voltages, represented below as [electrical field](/Electronics/Physics_of_electricity/Voltage.md#distinguishing-voltage-from-electric-field):
$$
E_{T} = E_{1} + E_{2} + E_{3} \\
$$
// TODO: Add image
In the case of **series opposing**, negative terminals are connected to each other and positive terminals are connected to each other in a series. This doesn't have many applications.
### Parallel connections
Parallel connections follow the series opposing (negative to negative, positive to positive) configuration but they are not connected in sequence.
_The same current flows through all cells. This is represented mathematically as follows ($T$ stands for time)_: