Calculate the values of resistors and capacitors

AI Thread Summary
Calculating resistor and capacitor values for a single pole double throw (SPDT) circuit requires specific details about the application, particularly when operating between 300 MHz and 3 GHz. The resistance of the switch is very low, potentially near zero, but the exact requirements depend on the switch's construction. To effectively drive a pin diode as a switch, clear equations and parameters are necessary. The discussion highlights the need for more detailed information to provide accurate assistance. Providing clearer questions will facilitate better guidance in designing the circuit.
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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