Blocking capacitor

[mudassar]

Hi,

i am designing single pole single throw switch which will act as a biasing circuit and helps in activating the pin diode. i.e. in forward and reverse bias.

i need to know that what is the purpose of blocking capacitor in single pole single throw circuit? is it necessary to have this at both ends of the switch i.e. at start and at end? and how the value of this capacitor can be determined?

 

[Nigel Goodwin]

I suggest you post a circuit, I don't understand what you mean?.

 

[ericgibbs]

Hi,

i am designing single pole single throw switch which will act as a biasing circuit and helps in activating the pin diode. i.e. in forward and reverse bias.

i need to know that what is the purpose of blocking capacitor in single pole single throw circuit? is it necessary to have this at both ends of the switch i.e. at start and at end? and how the value of this capacitor can be determined?

hi,
This pdf contains all the information you will need to design PIN diode circuits, happy reading.

 

[mudassar]

thanxs erric i got it