i've drawn part of my fan controller that I'm reverse engineering.
I'm new to eagle so it's a bit messy and incomplete but the main part I am trying to figure out is the top right circuit that provides power to 7 ic's - phillips CMOS hef 14 pin schmitts and nands invertors etc. 2 IR2106s mosfet drivers and 2 unknown ic's so far.
If it's a commonly used power supply could someone tell me what kind it is ?
also one of the components I've listed as ZD10 - not sure if it is actally a zener. the 2 red bands are closest to the gate of the mosfet.
it's got red,red,black,silver bands on it and can be seen in the pic below, just below the 1002 resistor.
Also, the motor states 24VDC nominal and it looks like the B+ for the mosfets -> coils is much higher than that. anybody know why ?
I've attached the eagle schematic too.
many thanks
I'm new to eagle so it's a bit messy and incomplete but the main part I am trying to figure out is the top right circuit that provides power to 7 ic's - phillips CMOS hef 14 pin schmitts and nands invertors etc. 2 IR2106s mosfet drivers and 2 unknown ic's so far.
If it's a commonly used power supply could someone tell me what kind it is ?
also one of the components I've listed as ZD10 - not sure if it is actally a zener. the 2 red bands are closest to the gate of the mosfet.
it's got red,red,black,silver bands on it and can be seen in the pic below, just below the 1002 resistor.
Also, the motor states 24VDC nominal and it looks like the B+ for the mosfets -> coils is much higher than that. anybody know why ?
I've attached the eagle schematic too.
many thanks
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