electronicsLearner77
- Jul 2, 2015
- 306
- Joined
- Jul 2, 2015
- Messages
- 306
Two questions i have regarding this.
a. When driving a 3 phase magnet using hall sensor, we use 6 pwm legs, 3 for and 3 for low side. When ever i have seen commutation diagram three voltages are mentioned like high, float and negative. I am able to understand positive that will be Batter+ and negative will be Battery-. Then what exactly is float. I am asking this because with pwm you can provide either high or low, floating is not possible. Can someone please explain me.
B. Next is hall signals will be going from high to low or vice versa. What high actually represents a North or South pole. When exactly this transition will happen? At the middle?
a. When driving a 3 phase magnet using hall sensor, we use 6 pwm legs, 3 for and 3 for low side. When ever i have seen commutation diagram three voltages are mentioned like high, float and negative. I am able to understand positive that will be Batter+ and negative will be Battery-. Then what exactly is float. I am asking this because with pwm you can provide either high or low, floating is not possible. Can someone please explain me.
B. Next is hall signals will be going from high to low or vice versa. What high actually represents a North or South pole. When exactly this transition will happen? At the middle?