RC-Monster Forums - View Single Post - How to build a brushless motor test bench?

BrianG · 01.22.2013, 11:39 AM

If using a power supply, be careful. The back emf of BL systems can fry PS circuits. If possible, I would add a diode across the regulator circuit so that when output voltage is higher than input (from emf pulses), that energy gets redirected. Doing this is not easy for switching PS units. Personally, I'd just use a battery but charge it fresh for each test to make sure you are doing a true apples to apples comparison.

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BrianG RC-Monster Admin Offline Posts: 14,609 Join Date: Nov 2005 Location: Des Moines, IA	01.22.2013, 11:39 AM If using a power supply, be careful. The back emf of BL systems can fry PS circuits. If possible, I would add a diode across the regulator circuit so that when output voltage is higher than input (from emf pulses), that energy gets redirected. Doing this is not easy for switching PS units. Personally, I'd just use a battery but charge it fresh for each test to make sure you are doing a true apples to apples comparison.