Minipulse Plus Rev My time has come!

[godigit1]

There is a lot of noise or ringing,is that because my coil isnt damped as it should?


Try turning off any florescent lights anywhere near or other electrical equipment maybe.

[mushaba]

Probe 1 TP3 and probe 2 at TP9

There is a lot of noise or ringing,is that because my coil isnt damped as it should?

[mushaba]

Made an 8" pattern to wound the coil



Made the coil from 0.50mm double enameled wire...Final specs 382 uH 2.5 Ohms unshielded.. Im using 390Ohm damping resistor.



Steps 1 to 5 looking good although at step 4 i measure spikes at 500V..

Step 6
adjusted the minimum sample delay of 10us.



Probe to TP8 the EFE delay pulse width i measure 114us not 100us as the documents says,is that right?
Probe to TP9 after PL6 shorted (i turned the pot to one end) the pulses are 15,6us not 10us...With gain pot i adjust from 15,6us to 30us....

Am i doing anything wrong??

[waltr]

Looking good so far.

I would just wind a simple temporary coil for testing. Get the inductance close (GeoTech's coil calculator works fine), typically 300 to 400uH.
Any diameter is good from 4 inch to 10 inch. A smaller coil is easier to handle during testing.
Leave the wires off the coil long and twist them together then connect to PCB. The twisted lead provide pretty good shielding.

[mushaba]

Hello everybody,as mentioned above I started my Mpp Beach Rev E.
Im stuck to step 4 because I don't have a coil yet
Posting some measurements..