Talk:Electronics/Cells

Discussion of dry and wet cells is not particularly necessary for basic electronics. -maxpower


 * I agree. - Omegatron 00:31, 1 Jun 2004 (UTC)


 * so get rid of 'em completely? some useful info is left here, battery voltages, but whatever turns your crank.


 * There is some useful info. We should probably mention them and talk about them a little, along with other types of power supplies, but we don't need to explain the chemistry or describe every different battery size or talk about recharging them.  Just say that they convert the energy of chemical reactions into electricity and leave it at that.  I also think we should be talking about ideal sources in parallel and series first, and then show how a cell (or generator or opamp output or whatever) behaves like an ideal voltage source with a source impedance. - Omegatron 16:13, 1 Jun 2004 (UTC)


 * For circuits, it seems that types of (ideal) sources are more important. (Not sure if this is well covered somewhere...it could be a section on it's own, or combined with cells, or part of 'Other Components'.)  I've referred to them as independent and dependent sources, but could alternately be independent and current-controlled/voltage-controlled.  I like the simpler terminology.  Whatever the source value depends on can be called the dependence variable. - maxpower 00:32, 3 Jun 2004 (UTC)


 * I always just called them "sources" and "controlled sources", and represent them with either circles or diamonds:


 * Regular:


 * [[Image:Voltage source symbol.png]] [[Image:Current source symbol.png]]


 * Controlled:


 * [[Image:Controlled voltage source symbol.png]] [[Image:Controlled current source symbol.png]]


 * "Independent" is better than "regular", though.


 * - Omegatron 14:26, 4 Jun 2004 (UTC)

A indication of how long each cell will last for would be nice. In charge but preferably in Ampere hours. That is if the cell is rated 1Ah then it can deliver one ampere for one hour or 0.5 amperes for 2 hours.