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| To: | [email protected] |
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| Subject: | Re: LF: Re: Current mode class D PA for 475 kHz - success |
| From: | Stefan Schäfer <[email protected]> |
| Date: | Thu, 31 May 2012 18:37:02 +0200 |
| In-reply-to: | <002f01cd3f35$a45c6e70$6d01a8c0@DELL4> |
| References: | <8BE4322932454ABBAF36917E7F0B7293@uwePC> <CAMFjj70+gM-ukas=NGMLyYwpL_wKnr-Mx3B6JH23XTr7yk_k9A@mail.gmail.com> <[email protected]> <[email protected]> <000601cd3f2d$7877fca0$6d01a8c0@DELL4> <[email protected]> <002f01cd3f35$a45c6e70$6d01a8c0@DELL4> |
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Jay, MF,I just tried the CMCD and immediately achieved 89% efficiency at 12VDC and 36W RF at 475 kHz (dummy load). Just a first result. I can answer my own question now: Without a load the PA behaves not critical! The current consumption is 0.2A only (including the current of the VFO and exciter) !! :-) I'm going to improve the design now and will publish some photos soon... 73, Stefan/DK7FC Am 31.05.2012 15:59, schrieb [email protected]: Stefan Thanks for the positive comments.Have to admit I haven't been following what you're up to ... curious what problems you're running into with VMCD at 500 kHz?Jay |
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