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Old 27th December 2005, 11:46 PM   #1
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Default 120V AC to 120V DC, 10A

Any ideas or theories about the easiest way? Topology, linear, switch mode? Cheapest and simplest design?
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Old 28th December 2005, 12:08 AM   #2
Eva is offline Eva  Spain
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Has the output to be isolated?
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Old 28th December 2005, 12:46 AM   #3
lineup is offline lineup  Sweden
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You need exactly 120 V
or would it be okay with 100 or 140 VDC

Best if you tell what you will power with it.
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Old 28th December 2005, 04:11 AM   #4
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It will be used to power a ARF473 RF Power MOSFET RF amplifier in the 144Mhz range with 300 to 500W output possible. I would assume it should be isolated. Any suggestions would be appreciated.
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Old 28th December 2005, 12:36 PM   #5
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Use a 1:1.41 ratio transformer followed by rectifer and caps. If you need regulated power you might have to adjust the ratio to get a slightly higher voltage.

Perhaps not the cheapest solution, but simplest (oh well, you have to find such a transformer).
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Old 28th December 2005, 11:58 PM   #6
Eva is offline Eva  Spain
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hawkfeather:

I'm just curious, do you have a working FM amplifier built around that dual MOSFET, or are you planning to build it?
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Old 29th December 2005, 07:25 AM   #7
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Hey Eva,

Please e-mail me and I will fill you in on what I am working on. I respect your status on this forum and I appreciate all of the help you give to everyone. You are plainly a master in electronics theory and design. I am planning to build this amp and a suitable power supply.
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Old 30th December 2005, 08:02 AM   #8
AndrewT is offline AndrewT  Scotland
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Hi,
my tupence worth, (UK equivalent to two cents).
Buy a switch mode PSU.
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