user TURBO?s replication of Steven Mark?s TPU ?

[Hoppy]

Hi GK

How many amps are you pulling from your new supply with a 100W lamp on the output?

[CTG Labs]

Sorry, mis-post.

[gyulasun]

Sorry, mis-post.

Hi Dave,

I have happened to see your picture and the possible explanation for that black blob is that within that display area the control of the TFT transistors are missing so those transistors cannot get any useful 'update' from the driving matrix.  Permanent fault, usually unrepairable.  If I have goofed, please let me know...

rgds,  Gyula

[Spherenot]

Here is the coils specs and circuit.

GK: Regarding the note on your image, TPU4-coils.gif : "No special reason for 4 segments. Could all be one segment."  Will you be winding TPU#5 with single control coils?  Inquiring minds want to know.

[starcruiser]

Spherenot,

I believe GK was referring to the feedback coil and not the control coils.

There is some debate as to whether the feedback coil should be segmented the same as the control and wired in the same manner or one continuous coil.

I am wondering if the feedback should be wound opposite the control coils (wrap direction) as in the Markovich diagram.

In any case you can wind the feedback coil in 4 segments and try those two configs, i.e. serially connect them or like the control coils, opposing (Tesla generator).

I will try both, first as Otto has done, in segments, then after validating the results Otto has gotten, I will redo the feedback in an opposed coil config.