PWM 인버터의 제어장치
    42.
    发明授权
    PWM 인버터의 제어장치 失效
    PWM逆变器

    公开(公告)号:KR1019880001153B1

    公开(公告)日:1988-07-01

    申请号:KR1019850003573

    申请日:1985-05-24

    Inventor: 임현문

    Abstract: The control system for a PWM inverter uses an analog method, by which the ON and OFF states of transistors are determined by comparing the fundamental wave with the carrier wave. The control system consists of a three-phase bridge rectifying circuit in which the diodes (D1-6) rectifies three-phase AC source, an inverter circuit in which the transistor (TR1-6) supplies the Ac current to the motor (M1) by transforming the regular output of the three phase bridge rectifying circuit, and a condenser (C1) which reduces ripple in order to operate the inverter circuit normally. Due to analog method the harmonic waves are eliminated.

    Abstract translation: PWM逆变器的控制系统采用模拟方法,通过比较基波和载波来确定晶体管的导通和截止状态。 控制系统由三相桥式整流电路组成,其中二极管(D1-6)对三相交流电源进行整流,其中晶体管(TR1-6)将AC电流提供给电动机(M1)的逆变器电路, 通过变换三相桥式整流电路的常规输出,以及降低纹波的电容器(C1),以正常操作逆变器电路。 由于模拟方法,消除了谐波。

    44.
    外观设计
    失效

    公开(公告)号:KR3000728690000S

    公开(公告)日:1987-07-25

    申请号:KR3019860007905

    申请日:1986-06-07

    Designer: 임현문

Patent Agency Ranking