RC-Monster Forums - View Single Post - Home-brew battery measuring station

himalaya · 06.09.2009, 04:41 AM

Great thinking Brian.

I am worrying about the MMM's input decoupling capacitors, you are pushing them really hard by this app.

IMO a programable(or just use a potentiometer to adjust) linear current source would be just fine for this application. just get a few power MOSFETs mounted on a HUGE fan-cooled heatsink, drive them with an Opamp connected as a current source, that's it.

You know what a stable and constant current means for a battery test platform, right?

	(#1)
himalaya RC-Monster Carbon Fiber Offline Posts: 392 Join Date: Nov 2008	06.09.2009, 04:41 AM Great thinking Brian. I am worrying about the MMM's input decoupling capacitors, you are pushing them really hard by this app. IMO a programable(or just use a potentiometer to adjust) linear current source would be just fine for this application. just get a few power MOSFETs mounted on a HUGE fan-cooled heatsink, drive them with an Opamp connected as a current source, that's it. You know what a stable and constant current means for a battery test platform, right? ....What a Blue Sky....