发明名称 |
Apparatus for driving brushless DC motor |
摘要 |
Disclosed is an apparatus for driving a BLDC motor, the apparatus including: a BLDC motor having a single sensing coil therein; a position/speed calculation unit for calculating a current position and a current speed of a rotor by using voltages at both ends of the sensing coil; a control unit for comparing the current speed of the rotor calculated by the position/speed calculation unit with a command speed and then outputting a control signal through a Proportional Integral (PI) control; a motor driving unit for generating a PWM signal based on the current position of the rotor calculated by the position/speed calculation unit and the control signal output by the control unit; and a power device unit for controlling the BLDC motor according to the PWM signal generated by the motor driving unit. |
申请公布号 |
US8796979(B2) |
申请公布日期 |
2014.08.05 |
申请号 |
US201213672764 |
申请日期 |
2012.11.09 |
申请人 |
Electronics and Telecommunications Research Institute |
发明人 |
Oh Jimin |
分类号 |
G05B11/28;H02P6/00 |
主分类号 |
G05B11/28 |
代理机构 |
Rabin & Berdo, P.C. |
代理人 |
Rabin & Berdo, P.C. |
主权项 |
1. An apparatus for driving a BLDC motor, the apparatus comprising:
a BLDC motor having a single sensing coil therein; a position/speed calculation unit for calculating a current position and a current speed of a rotor by using voltages at both ends of the sensing coil; a control unit for comparing the current speed of the rotor calculated by the position/speed calculation unit with a command speed and then outputting a control signal through a Proportional Integral (PI) control; a motor driving unit for generating a PWM signal based on the current position of the rotor calculated by the position/speed calculation unit and the control signal output by the control unit; and a power device unit for controlling the BLDC motor according to the PWM signal generated by the motor driving unit. |
地址 |
Daejeon KR |