Glossary:Ballast: Difference between revisions
(Created page with "Whereas a conventional resistor only draws a current equal to the voltage divided by the Glossary:Resistance|resista...") |
mNo edit summary |
||
| Line 1: | Line 1: | ||
Whereas a conventional [[Glossary:Resistor|resistor]] only draws a [[Glossary:Amp|current]] equal to the [[Glossary:Volt|voltage]] divided by the [[Glossary:Resistance|resistance]], in the case of a [[Glossary:LED|LED]] or a lamp utilising an electrical discharge through a gas or vapour (such as a | Whereas a conventional [[Glossary:Resistor|resistor]] only draws a [[Glossary:Amp|current]] equal to the [[Glossary:Volt|voltage]] divided by the [[Glossary:Resistance|resistance]], in the case of a [[Glossary:LED|LED]] or a lamp utilising an electrical discharge through a gas or vapour (such as a fluorescent tube) the current increases rapidly once a certain voltage is reached. The current must therefore be limited by the circuit driving it. There are several ways this can be achieved but they are all referred to as a "ballast". | ||
Latest revision as of 21:25, 1 October 2021
Whereas a conventional resistor only draws a current equal to the voltage divided by the resistance, in the case of a LED or a lamp utilising an electrical discharge through a gas or vapour (such as a fluorescent tube) the current increases rapidly once a certain voltage is reached. The current must therefore be limited by the circuit driving it. There are several ways this can be achieved but they are all referred to as a "ballast".