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Capacitance is the ability of a body to store an electrical charge

2
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. Technically the current wouldn't go through the higher impedance S-D capacitance, and wants to travel through the diode instead. Can I ignore the capacitance of source-drain while the voltage drops … across the diode? (I know this is not a ~practical~ thing, but I'm wondering more about the diode versus S-D capacitance than the practicality of backwards FETs) …
asked May 22 '15 by ARMATAV
4
votes
Here's what I know; Image (a) - That capacitor above the varicap isolates the tuned circuit from the DC tuning voltage, but still allows the capacitance of the varicap to contribute to frequency … the same tuning voltage, but inherently the tuning voltage is isolated from the tuned circuit, without the need to add the big capacitor to block it, and thus you only have the capacitance of those …
answered Apr 28 '15 by ARMATAV