发明名称 |
DC on line AC brushless motor |
摘要 |
A phase regulated power supply is provided for converting alternating current (AC) to direct current (DC) for powering a DC brushless motor, such as a fan. The power supply includes a full wave bridge rectifier and a driver circuit, which may be an IC chip, controlled by standard commutation circuitry. An output capacitor is connected electrically downstream to the switch for supplying a reduced DC ripple voltage to the motor load. The power supply preferably includes a line filter for removing input power surges. The speed of the motor may be varied by changing the values of bias resistors used with the driver circuit.
|
申请公布号 |
US5606232(A) |
申请公布日期 |
1997.02.25 |
申请号 |
US19940343115 |
申请日期 |
1994.11.22 |
申请人 |
NIDEC CORPORATION |
发明人 |
HARLAN, GEORGE H.;AVERY, JOHN R. |
分类号 |
H02M7/217;H02P6/00;(IPC1-7):H02P3/00 |
主分类号 |
H02M7/217 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|