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    • 83. 发明授权
    • PWM driving apparatus
    • PWM驱动装置
    • US07079758B2
    • 2006-07-18
    • US10797816
    • 2004-03-09
    • Hideki SunagaFutoshi ArakiKaoru TanakaEiji Takahashi
    • Hideki SunagaFutoshi ArakiKaoru TanakaEiji Takahashi
    • H02P7/06
    • H02P5/68H02P7/29H03K7/08
    • When a PWM signal generating unit (10) sets a duty D of a PWM signal based on command signals (10c), the PWM signal generating unit (10) sets a phase difference φ between each of the PWM signals based on a relation formula of φ (degree)=360 (degree)×D (%)/100 (%), and generates and outputs first PWM signals (10a) and second PWM signals (10b) in which the duty is D (%) and the phase difference is φ (degree). The first PWM signals (10a) and the second PWM signals (10b) are respectively supplied to a first load driving circuit (21) and a second load driving circuit (22) to operate a first motor fan (3) and a second motor fan (4) by a PWM control, respectively.
    • 当PWM信号生成单元(10)基于指令信号(10c)设定PWM信号的占空比D时,PWM信号生成部(10)基于关系式设定各个PWM信号之间的相位差phi (度)= 360度(度)×D(%)/ 100(%),并且产生并输出其中占空比为D(%)的第一PWM信号(10a)和第二PWM信号(10b) 相位差为phi(度)。 第一PWM信号(10a)和第二PWM信号(10b)分别提供给第一负载驱动电路(21)和第二负载驱动电路(22),以操作第一电动机风扇(3)和第二负载驱动电路 电机风扇(4)分别由PWM控制。
    • 86. 发明授权
    • Driving control device for actuator
    • 驱动控制装置
    • US07023152B2
    • 2006-04-04
    • US10743540
    • 2003-12-23
    • Hideki SunagaKaoru TanakaFutoshi ArakiEiji Takahashi
    • Hideki SunagaKaoru TanakaFutoshi ArakiEiji Takahashi
    • H02P1/04H02P1/16
    • H02P3/12H02P7/04
    • A driving control device for an actuator comprises a driving device to drive an actuator having an electric motor (30) and a driving control device (50) to control the rotation of the electric motor (30) by controlling the driving device. The driving control device includes an H bridge circuit constructed by four switching semiconductor elements (Tr1 to Tr4), and rotates the electric motor in normal and reverse directions by turning on and turning off the switching semiconductor elements (Tr1 to Tr4). The driving control device (50) conducts to activate and to stop the electric motor (30) by applying a PWM signal to the switching semiconductor elements (Tr3 and Tr4) constructing the lower arm of the H bridge circuit (51).
    • 用于致动器的驱动控制装置包括用于驱动具有电动机(30)的致动器的驱动装置和通过控制驱动装置来控制电动机(30)的旋转的驱动控制装置(50)。 驱动控制装置包括由四个开关半导体元件(Tr 1至Tr 4)构成的H桥电路,并且通过接通和断开开关半导体元件(Tr 1至Tr 4)来使电动机沿正向和反向旋转, 。 驱动控制装置(50)通过向构成H桥式电路(51)的下臂的切换用半导体元件(Tr 3,Tr 4)施加PWM信号来进行电动机30的起动和停止。