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RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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RF To DC COnverter - RF Cafe Forums

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Nilesh Patel
Post subject: RF To DC COnverter
Unread postPosted: Mon Apr 25, 2005 6:35 am

I have a VHF & UHF TV Transmitters which produce 500W. I run this through bi-directional coupler. I need a circuit that will take RF signal in VHF & UHF band and produce 0 to10 VDC adjustable. Any ideas or sources.

Thank you very much


Post subject: RF to DC Convertor
Unread postPosted: Tue Apr 26, 2005 9:47 am

Good day. Check out both Analog Devices and Linear Technology. I believe they both make an IC that does RF to DC. They might not have the DC voltage range that you want, but you should be able to scale it.

Good Luck


Post subject:
Unread postPosted: Tue Apr 26, 2005 10:48 am

I designed a similar circuit using a Analog Device's AD8010. You will need to couple >60db from your signal. You will have to scale the output.

It seems the detector is the easy part of this circuit, what are you going to use for a coupler?


Post subject:
Unread postPosted: Tue Apr 26, 2005 10:49 am

A correction to my previous post, I used an Analog Device part AD8310.

Posted  11/12/2012
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