On Semi LV8811三相BLDC马达驱动方案
On Semi公司的LV8811/13/14是通过180°正弦波驱动三相BLDC马达驱动器,工作电压3.6伏(V)至16 V,6 V至16 V,和3.6 V至16 V.器件由单个霍尔传感器控制,降低系统成本,电机速度可通过一个脉宽调制(PWM)信号或一个直流电压设置,并具有过流,过压,欠压和过温等保护功能,主要用在家电如冰箱的散热风扇,及游戏机和计算设备.本文介绍了LV8811/13/14主要特性,框图,几种应用电路,以及LV8811G/13G/14J评估板主要特性,电路图,材料清单和PCB设计图.
The LV8811G, LV8813G are a 3-phase BLDC motors driver which are controlled by single Hall sensor. A 180 degrees sinusoidal driving method is adopted and the IC can control motor with low vibration and the low noise. In addition, lead-angle adjustment is possible by external pins. Lead-angle value and lead-angle slant can be adjusted independently. Thus, the device can be driven by high efficiency and low noise with various motors. The power element to drive a motor is built-in and contributes to high efficiency by low on resistance (0.5 Ω). The Hall sensor bias driver is equipped, and a Hall IC is supported as well. As a method of the rotary speed control of the motor, direct-PWM pulse input or DC-voltage input can be chosen.
LV8811/13/14主要特性:
∙3-phase full wave (sinusoidal) drive ..
