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How do you bias a varactor diode?

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Varactor diode

using RFC , to eleminate the RF in the DC path , and also use decoupling capacitors

khouly
 

Re: Varactor diode

it can be done by taking care that a RF signal is superposed over a constant negative DC supply to take care that the diode is in reverse bias....
 

Re: Varactor diode

Through a simple resistor of 33K... 100K since the current through the varicap is very very small +/- 10uA !!..
 

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