Calculate the values of resistors and capacitors

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Discussion Overview

The discussion revolves around calculating the values of resistors and capacitors in a single pole double throw (SPDT) circuit, particularly in the context of using a pin diode as a switch operating between 300 MHz and 3 GHz. Participants seek equations and guidance for component values relevant to this application.

Discussion Character

  • Technical explanation
  • Debate/contested
  • Homework-related

Main Points Raised

  • One participant inquires about how to calculate the values of resistors and capacitors in an SPDT circuit.
  • Another participant suggests that the resistance in a switch would be very low, prompting a question about how low that would be.
  • A participant asks for methods to calculate the values of capacitors and inductors involved in the circuit.
  • One response indicates that more specific application details are needed, stating that a switch functioning as an SPDT would not require additional circuits and that resistance depends on the switch's construction.
  • A participant describes their use of the SPDT as a driver for a pin diode and requests equations for calculating component values necessary for operation at high frequencies.
  • A later reply criticizes the clarity of the initial questions, emphasizing the need for more detailed information about the circuit to provide effective assistance.

Areas of Agreement / Disagreement

Participants express varying levels of understanding and clarity regarding the original questions, with some indicating a need for more information while others attempt to provide insights based on the limited details given. The discussion remains unresolved as participants have not reached a consensus on the calculations or requirements.

Contextual Notes

The discussion highlights limitations related to the specificity of the circuit details provided, which affects the ability to offer precise guidance on calculations. There is also a mention of a language barrier that may contribute to the clarity issues in the questions posed.

mudassarhanif
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any body who can tell me how to calculate the values of resistors and capacitors in single pole double throw circuit?
 
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if its a switch, very low resistance

dr
 


how much low that would be? approximately zero?

how can i calculate the values of capacitors and inductors involve in this circuit?
 


you need to provide more info on your specific application. a switch working as a SPDT (single pole double throw) would need no added circuits
resistance is depending upon the construction of the switch

dr
 


Basically, i am use this SPDT as a driver for pin diode and pin diode works as a switch.

now i need to operate that between 300 Mhz-3Ghz... so i need some equations to calculate the values of elements using in SPDT inorder to drive the pin diode to switch on and off
 


mudassarhanif said:
Basically, i am use this SPDT as a driver for pin diode and pin diode works as a switch.

now i need to operate that between 300 Mhz-3Ghz... so i need some equations to calculate the values of elements using in SPDT inorder to drive the pin diode to switch on and off

You already have a thread going on this subject in the EE forum:

https://www.physicsforums.com/showthread.php?t=399090

Please do not multiple-post across the forums with the same question.

Now, one of the problems in both of these threads has been that you have asked obtuse, obscure, poorly-defined questions, with very little in the way of details. This makes it hard for us to help you, and makes it very tedious to read these threads.

I understand that there is a language barrier issue, so it may be difficult for you to post much. But you really do need to provide much more detail about the circuit you are working with, or that you want to build, before we can be of help.
 

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