Return to KLUBNL.PL main page
| To: | <[email protected]> |
|---|---|
| Subject: | Re: LF: Title: Power MOSFET Knock Efficiency Up A Notch |
| From: | "Alan Melia" <[email protected]> |
| Date: | Wed, 23 Feb 2011 11:52:27 -0000 |
| Dkim-signature: | v=1; a=rsa-sha256; c=relaxed/relaxed; d=btinternet.com; s=s1024; t=1298461943; bh=83vgXjYXZyxMPt1fBspi5YCiQcSGMZYtBaCbB/bTWv4=; h=Received:X-Yahoo-SMTP:X-YMail-OSG:X-Yahoo-Newman-Property:Message-ID:From:To:References:Subject:Date:MIME-Version:Content-Type:Content-Transfer-Encoding:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE:X-Antivirus:X-Antivirus-Status; b=AeE88snUlM1VBWncbbiQyLEAOwieZNkzbLjl1NRzXofyhKzBHmBPUzHQ8T0hSCCwssRgH20X/reT3BS9qlrxzuLE4/7dMJY9xoF4EWAPdRyBEb5Eoqby2SJoUh/jEuT3caouB8S58frj9BLUo9u/DUARjNm6Dqve/zOmagmgwak= |
| Domainkey-signature: | a=rsa-sha1; q=dns; c=nofws; s=s1024; d=btinternet.com; h=DKIM-Signature:Received:X-Yahoo-SMTP:X-YMail-OSG:X-Yahoo-Newman-Property:Message-ID:From:To:References:Subject:Date:MIME-Version:Content-Type:Content-Transfer-Encoding:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE:X-Antivirus:X-Antivirus-Status; b=uoxddJgG2W6hOlvdAnX+rL+vefh5fve1Tl3skj5kSAOAV6SzfUtQ0Y3pOyCbN4WXzp3DzeH4WXZMZbAhv8f1ii89uHmioolyniRd9OX3dJFGdXVtEF+IaClIFCxLn70TgUZO4Ih3+fZEdAIbbZSKXl8fOngTPUoiwJtvu9X9Iu0= ; |
| Domainkey-status: | good (testing) |
| References: | <788033577-1298396905-cardhu_decombobulator_blackberry.rim.net-1949347720-@bda644.bisx.prod.on.blackberry> <[email protected]> <008101cbd2ca$dafdbd40$4001a8c0@lark> <[email protected]> |
| Reply-to: | [email protected] |
| Sender: | [email protected] |
Hi Stefan, Ah I wasn't thinking of /p operation....you need a mule to carry more batteries :-)) Alan G3NYK ----- Original Message ----- From: "Stefan Schäfer" <[email protected]> To: <[email protected]> Sent: Wednesday, February 23, 2011 11:35 AM Subject: Re: LF: Title: Power MOSFET Knock Efficiency Up A Notch Hi Alan, In a few weeks i am /p in EI for 7...10 days! I'm thinking about beeing QRV on LF with a "travel-equipment". This might be a 100m kite antenna and a LF TRX and a 12V PA running at up to 30W out. There would be no alternative to a 12 V design! Using such a 12V, 7Ah battery would allow some hours of TX activity! :-) 73, Stefan/DK7FC Am 22.02.2011 20:52, schrieb Alan Melia: > Why stick to 12v ?? Best efficiency will always be at higher supply voltages > ....also more tractable output impedances. > Alan G3NYK > ----- Original Message ----- > From: "Stefan Schäfer"<[email protected]> > To:<[email protected]> > Sent: Tuesday, February 22, 2011 6:24 PM > Subject: Re: LF: Title: Power MOSFET Knock Efficiency Up A Notch > > > >> These FETs can be used as a very low-loss electronic switch in 12V >> circuits but are not suitable for a easy PA design (running at 12VDC). >> Maybe they are difficult to get. An alternative which is easy to get and >> is most suitable for a high power class E PA at 12 VDC is the IRF1404 >> <http://www.datasheetcatalog.org/datasheet/irf/irf1404.pdf> >> >> >> 73, Stefan/DK7FC >> >> Am 22.02.2011 18:48, schrieb [email protected]: >> >>> Could these help in getting the efficiencies higher in LF amps? >>> >>> Granted, these are low power devices. Looks like they are on the right >>> > track. > >>> >>> >>> >>> > http://electronicdesign.com/article/power/Power-MOSFET-Knock-Efficiency-Up-A-Notch-.aspx?cid=ed_productsnewsletter&NL=1&[email protected] > >>> Sent via BlackBerry by AT&T >>> >>> >> > |
| <Prev in Thread] | Current Thread | [Next in Thread> |
|---|---|---|
| ||
| Previous by Date: | Re: LF: Title: Power MOSFET Knock Efficiency Up A Notch, Stefan Schäfer |
|---|---|
| Next by Date: | LF: Re: Soldering enamelled copper wire, mal hamilton |
| Previous by Thread: | Re: LF: Title: Power MOSFET Knock Efficiency Up A Notch, Stefan Schäfer |
| Next by Thread: | Re: LF: Title: Power MOSFET Knock Efficiency Up A Notch, henny van elst |
| Indexes: | [Date] [Thread] [Top] [All Lists] |