会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 86. 发明专利
    • FR2810418B1
    • 2004-11-26
    • FR0106240
    • 2001-05-11
    • KOITO MFG CO LTD
    • ICHIKAWA TOMOYUKI
    • B60Q1/08B60Q1/115B60Q1/18G05B1/00
    • A motor-controlling circuit for an optical-axis-adjusting unit of an illuminating device. The motor-controlling circuit ensures smooth control of a motor, which adjusts an optical axis, and ensures accurate repetition of a motor-stop position by way of PID and PWM control. The motor-controlling circuit 9 includes a motor 7 and a position detecting portion 6b. Feedback control is performed whereby an error between the motor's present position information, and the target value of position control, becomes zero. The motor-controlling circuit also includes a calculation portion 14 including a proportional-calculation portion 11, an integration-calculation portion 12, a differential-calculation portion 13, and a PID-calculation-processing portion 15 that calculates control by adding weighted respective outputs of the calculation portion 14. Further, a PWM-controlling-portion 16 generates a control signal having a duty cycle that is varied in response to the amount of control from the PID-calculation-processing portion 15, whereby the drive and control of the motor 7 are executed.