Capacitance Addition Formula Origin

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SUMMARY

The discussion focuses on the derivation of the capacitance addition formula applicable to various conductors, emphasizing that capacitance is determined by geometry and distances rather than the conductors themselves. The participants reference the book "Electronic Engineering" by Alley and Atwood (1973) for insights on parasitic capacitances. The key takeaway is that understanding the spatial arrangement of conductors is crucial for calculating capacitance in different configurations.

PREREQUISITES
  • Understanding of basic electrical concepts, particularly capacitance.
  • Familiarity with geometric principles related to conductor placement.
  • Knowledge of parasitic capacitance in electronic circuits.
  • Access to "Electronic Engineering" by Alley and Atwood for deeper insights.
NEXT STEPS
  • Research the geometric factors affecting capacitance in various conductor configurations.
  • Study the derivation of capacitance formulas for non-parallel plate capacitors.
  • Explore the concept of parasitic capacitance in detail, particularly in PCB design.
  • Investigate advanced capacitance measurement techniques and tools.
USEFUL FOR

Electrical engineers, electronics designers, and students studying capacitor behavior in various configurations will benefit from this discussion.

ExplosivePete
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Hello,

Could someone help me find a general derivation of the formula for addition of capacitance of conductors? I'm hoping to find something that could be applied to a general assortment of conductors, not just parallel plate capacitors.

I look forward to your response,

Pete
 
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If you mean capacitance between conductors, or capacitance from conductor to ground, it is not a function of the conductor itself, but rather a function of the geometry and the distances.

For parasitic capacitances in electronics see
Alley, Charles L.; Atwood, Kenneth W. (1973). Electronic Engineering, 3rd Ed. New York: John Wiley & Sons. p. 199. ISBN 0-471-02450-3.
 

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