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Good news is that adding a PNP gate drive turn off circuit has seemed to remove any of the parasitic coupling. I measured the rise time of the turn on of the SSR and it is sufficient for what I need! There won't be much switching in the way of the SSR.
Hi all, thank you all for your feedback!
dick_freebird: I would use a standard relay but reliability is a great concern!
Barry: It happens with almost any MOSFET and most gate drivers (Some worst than others), but specifically the IPLK60R600 by Infineon. The gate driver is a VOM1271...
My apologies. It appears my schematic and waveforms did not show up for some reason! Let me try this again. It is a custom SSR circuit utilizing N Channel MOSFETS so I could pick lower output capacitance MOSFETS so that way the impedance is higher when the SSR is off at higher frequencies. The...
I'm experiencing trouble in both my model and in my measurements of a real circuit of a solid state relay. I'm attempting to switch a 200kHz high power source. However it seems as though I cannot get the MOSFET to remain off during the zero crossing event. I'm also using a photovoltaic...
-As an estimate the impedance would be about 100 MegaOhms and as quiet as possible with the supplied GBW below as bandwidth is more important to this application than noise.
GBW estimated to be about 200MHz. (Maximum Gain of 20)
The Diodes are there as input protection to the op amp (Extreme...
I am looking at building a Pre-Amp that has a high impedance due to having a high impedance load (Like that of most Piezoelectric Elements). My biggest issue with this is that it needs to feed an ADC that is unipolar but can be either single ended or differential. The circuit also requires...
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