Timeline for Class C Amplifier: Calculating the base resistor
Current License: CC BY-SA 4.0
11 events
| when toggle format | what | by | license | comment | |
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| Jul 2, 2020 at 0:30 | comment | added | D.A.S. | @user287001 I could not see your simulation. Can you see mine? tinyurl.com/ydy6ce7b What efficiency did you get? | |
| Jul 1, 2020 at 23:11 | comment | added | user136077 | Check my answer. I have tried it and as simulated it works. | |
| Jul 1, 2020 at 23:05 | comment | added | D.A.S. | If AC Coupled how can it occur? then it turns off with a peak detected input. So it must be direct coupled. | |
| Jul 1, 2020 at 23:04 | comment | added | user136077 | There is no bias in class C amps, only a narrow top of a sine gets through. | |
| Jul 1, 2020 at 23:02 | comment | added | D.A.S. | My oversight. I tried but cannot find an efficient bias. tinyurl.com/y9zfbagh | |
| Jul 1, 2020 at 22:41 | comment | added | user136077 | Not quite. 500Hz AC should exist only as summed to the operating DC voltage. The classic AM radio transmitter had usually the secondary of an audio output transformer in series with the DC voltage which was supplied to class C amp. The principle was called in the vacuum tube era "anode modulation". | |
| Jul 1, 2020 at 22:30 | comment | added | D.A.S. | @user287001 Like this ? tinyurl.com/yb3n6zel | |
| Jul 1, 2020 at 22:20 | comment | added | D.A.S. | Yes you can do that as well perhaps better than how I did it. | |
| Jul 1, 2020 at 22:04 | comment | added | user136077 | Excuse me, but class C amps are heavily non-linear, they cannot amplify properly AM signals. Amplitude modulation in class C amps is done by swinging the operating voltage. | |
| Jul 1, 2020 at 21:42 | history | edited | D.A.S. | CC BY-SA 4.0 |
added 116 characters in body
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| Jul 1, 2020 at 21:31 | history | answered | D.A.S. | CC BY-SA 4.0 |