发明名称 |
SENSORLESS DC BRUSHLESS MOTOR START-UP CIRCUIT USING UNBALANCING CLOCK |
摘要 |
<p>A start-up circuit for a sensorless, brushless DC motor modifies a conventional start-up circuit to include an intermittently-accelerated-rate clock generator for supplying a clock signal intermittently accelerated in rate to a shift register that is connected as a ring counter for selectively generating three-phase commutation signals during start-up and six-phase phase commutation signals during running. The intermittently-accelerated-rate clock generator facilitates the start-up circuit increasing the magnitude of a back electromotive force by adjusting the rate of a starting clock during start-up of the motor, so as to be capable of both a normal start-up with a normal-rate clock signal and an accelerating start-up with an accelerated-rate clock signal. This permits a stable and rapid start-up without need for a microprocessor or complicated circuitry.</p> |
申请公布号 |
KR0154854(B1) |
申请公布日期 |
1998.12.15 |
申请号 |
KR19950026160 |
申请日期 |
1995.08.23 |
申请人 |
SAMSUNG ELECTRONICS CO.,LTD |
发明人 |
PARK, SI-HONG;BANG, SUK-HUN;KANG, NAM-JIN |
分类号 |
H02P1/16;H02P6/18;H02P6/20;(IPC1-7):H02P6/02 |
主分类号 |
H02P1/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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