2 ms·
That seems like a good way to make a piece of equipment just not work. The stuff inside the printers also probably relies on proper capacitor values.
by polishdude20 6y ago
That seems like a good way to make a piece of equipment just not work. The stuff inside the printers also probably relies on proper capacitor values.
- jstanley 6y agoSeems unlikely. It's probably ~all digital, so I expect the capacitors are literally only there for filtering the power supply.
- deleted 6y ago[deleted]
- gugagore 6y agoIf you learn about https://en.m.wikipedia.org/wiki/Decoupling_capacitor https://en.m.wikipedia.org/wiki/Decoupling_capacitor you'll see that there is more to the consideration than "just use the highest capacitance capacitor".
- IAmGraydon 6y agoPower caps. They act like a shock absorber or a very short term UPS for incoming power.
- gugagore 6y agoA shock absorber contains an element that does damping and a spring. The ideal capacitor can only be one of those elements in the analogy, I think.
- fnordfnordfnord 6y agoThe shock absorber isn't a great analogy for a filter cap but, a capacitor has inductance and resistance, even though it is primarily a capacitor and we usually ignore the L and R for simplicity's sake.
- gugagore 6y agoThat's why I wrote "ideal capacitor"
- gugagore 6y agoYou're right. From https://en.m.wikipedia.org/wiki/Decoupling_capacitor https://en.m.wikipedia.org/wiki/Decoupling_capacitor Since capacitors differ in their high-frequency characteristics (and capacitors with good high-frequency properties are often types with small capacity, while large capacitors usually have worse high-frequency response), decoupling often involves the use of a combination of capacitors. For example in logic circuits, a common arrangement is ~100 nF ceramic per logic IC (multiple ones for complex ICs), combined with electrolytic or tantalum capacitor(s) up to a few hundred μF per board or board section.