Timeline for Pull-up resistor over a microphone
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
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| Aug 30, 2015 at 1:03 | comment | added | Dwayne Reid | Couple of things wrong with your answer: 1) The Electret element inside the microphone does NOT need bias. The bias is part of the material that makes up the microphone dielectric. 2) Every Electret mic that I have seen has a built-in source-follower FET. This FET is what needs the external bias that you supply to the microphone capsule. Typical output impedance for most of the Electret mics that I have worked with measures to be close to 1k but that can vary widely. | |
| Apr 14, 2012 at 16:46 | vote | accept | user16307 | ||
| Apr 14, 2012 at 16:46 | vote | accept | user16307 | ||
| Apr 14, 2012 at 16:46 | |||||
| Apr 6, 2012 at 9:40 | history | answered | stevenvh | CC BY-SA 3.0 |