007: Parallel components – Resistors – Light Emitting Diodes LEDs – Capacitors

Parallel resistors provide more current (less resistance). Whereas, parallel LEDs or other diodes, share the current as long as they have the same voltage drop. And finally, capacitors add up their capacitance when connected in parallel.

  • Resistors in parallel gives an equivalent of lower resistance than any of their rated values.
  • Diodes/LEDs block a certain amount of voltage while forward biased, and then start passing current pretty much freely after that. Therefore, equal value voltage drop diodes will split the current evenly among them. A lower voltage drop diode will pass all the current, preventing voltage from rising high enough to power a higher forward voltage diode. Current still needs to be set by a resistor or current source.
  • Capacitance simply adds up when capacitors are connected in parallel. They will all share a voltage, so they much all be rated to handle the highest voltage that they will be charged to. In addition, very large value capacitors (especially low resistance supercapacitors) should have close to the same voltage before they are connected in parallel.

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Basic electronics circuit fragments and simple circuits 5 Parallel components Resistors LEDs Capacitors diagram by electronzap electronzapdotcom
Basic electronics circuit fragments and simple circuits 5 Parallel components Resistors LEDs Capacitors diagram by electronzap electronzapdotcom

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