EVGRAY Archive

Re: Aw: [EVGRAY] Re: Push pull generator.

Database ID: 108721
2018-07-08T08:01:49-07:00
onielsen2000 <[email protected]>

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Re-post with the picture attached.

Regards
Ole
 
---In [email protected], <onielsen@...> wrote :

 Hi Sven,

The capacitor in parallel to the parasitic gate-source capacitor can be omitted if using a low impedance gate driver placed close to the MOSFET for minimizing inductive loops. Twisting the gate source wires forms a transmission line of less impedance than the big loops on the picture. Twisting the wires of different gate circuits together couples them together. This can be seen in the scope shot where spikes are transferred between the two gate circuits. This also happens between the big loops that work as loop antennas which both send and receive the signals. See the picture below if it makes it through Yahoo.

"For me, C1 is 1μF MKP and C2 is 68μF Elko.
R2 2.2 ohms and R3 now 10K."
This doesn't tell anything without knowing how or what they're connected to.

Regards
Ole

References

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