To: | [email protected] |
---|---|
Subject: | Re: LF: PA problem |
From: | DK7FC <[email protected]> |
Date: | Wed, 08 Nov 2017 14:52:34 +0100 |
In-reply-to: | <[email protected]> |
References: | <[email protected]> <[email protected]> <[email protected]> <[email protected]> |
Reply-to: | [email protected] |
Sender: | [email protected] |
User-agent: | Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 |
Am 08.11.2017 14:37, schrieb DK7FC: And i would add a 1000 uF electrolytic capacitor with a low internal resistance (the good ones :-) ) near the Drain, in parallel to the 1 uF capacitor.Sorry that was wrong. Actually there should be a small inductor between that large C and the drain, just a few uH, like others said before. That value is not so critical, it can be 10 uH or so. 73, StefanPS: In 2001 i built a 1 kW class E PA for 137 kHz using a single IRFP360 and 80V DC. I also built a 13.8 V version using a IRF540N giving 100 W. But it has always been a high effort to get a good efficiency. Since many years i prefer class D PAs. |
<Prev in Thread] | Current Thread | [Next in Thread> |
---|---|---|
|
Previous by Date: | Re: LF: PA problem, DK7FC |
---|---|
Next by Date: | Re: VLF: VO1NA in Todmorden on 8270 Hz - also in Amberg?, jcraig |
Previous by Thread: | Re: LF: PA problem, DK7FC |
Next by Thread: | Re: LF: PA problem, N1BUG |
Indexes: | [Date] [Thread] [Top] [All Lists] |