Of course I could just select the LT part, but it costs $5, versus 60 cents for the MCP part. Otherwise the output is high and the mosfet is off. If the output voltage falls below the battery voltage, the opamp output goes low, which turns on the mosfet. I'm also attaching a picture of the schematic. I should note that the MCP6041 library also comes in a "COMP" version, which I've included in the ZIP, which supposedly is better suited when the part is used as a comparator. So it's all the files needed to run the simulation. Also included are the library files for the opamp and mosfet, as well as the solar panel model I'm using. The LT version works fine, but the MCP version doesn't.
asc, which is identical except for the opamp selection. asc as well as the LT1494 version of the. Ok, attached is a ZIP file containg the MCP6041 version of the.
MODEL INTER PMOS(VTO=0 KP=10 LEVEL=1) Cgdmax 7 4 2600p Rcgd 7 4 10meg Dgd 4 6 DGD Rdgd 4 6 10meg.
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