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Old 24th March 2013, 05:42 PM   #4001
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Why would it act differently than solo F6?
What I wanted to say is: When you adjust each solo diyF6 in your setup for bias, ensure that it is operating open loop by cutting the feedback trace as close to the power output as possible. This is safest solution. An ther solution is to cut the trace after the 100 Ohm feedback resistor; such that it is connected [solely] to the bottom primary winding. This is a situation of a closed loop gain =1; which maybe problematic only when you are adjustring for bias etc.. I see this second situation [CLG=1] less desirable than OLG = xc. I am projecting possible problems at the tweaking stage. What is needed in the end is: With the bridge connected, both power outputs must settle at 0 VDc when power is turned on.
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Old 24th March 2013, 06:24 PM   #4002
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everything is safe if common feedback resistor is made of two halves , with common node connected to gnd , through setting procedure

effectively having two independent regular F6 channels with that arrangement
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Old 24th March 2013, 06:35 PM   #4003
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Thanks, mr ZM. Kinda like biasing f5x.
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Old 24th March 2013, 06:50 PM   #4004
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Thanks, mr ZM. Kinda like biasing f5x.
buzzforb and Zen Mod. I'm afraid that I am not on the same page you two are looking at. Nonetheless, I'm looking forward to the outcome.
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Old 24th March 2013, 06:56 PM   #4005
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F5X -- the EUVL Approach - The Build Thread

Post 9
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Old 24th March 2013, 07:12 PM   #4006
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Thanks buzzforb. I simply took the initiative to do a PPA [potential problem analysis] for the startup of your bridged DIDO. You put a lot of time, effort, and $s to reach this advanced point. Better safe [for the equipment] than sorry will be my PPA to any DIYer.
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Old 24th March 2013, 07:15 PM   #4007
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F6 by Buzz , known as DIlDO F6

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Old 24th March 2013, 07:24 PM   #4008
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The Mrs will be pleased. Thanks Antoinel for looking out. If I make magic smoke, I'll learn more cause I have to figure out why. I'll smoke some laterals first. Convenient bias level.
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Last edited by buzzforb; 24th March 2013 at 07:49 PM.
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Old 24th March 2013, 07:45 PM   #4009
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F6 by Buzz , known as DIlDO F6

Impure thoughts!
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Old 24th March 2013, 08:00 PM   #4010
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guilty as charged

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