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    • 3. 发明授权
    • Gate control apparatus
    • 闸门控制装置
    • US4079270A
    • 1978-03-14
    • US681248
    • 1976-04-28
    • Masahiko IbamotoMasato SuzukiSigeru Kuriyama
    • Masahiko IbamotoMasato SuzukiSigeru Kuriyama
    • G05F1/10H02M1/06H02M1/08H02M3/137H03K17/60
    • H02M3/137
    • In a semiconductor device which includes a main thyristor and an auxiliary thyristor for turning off the main thyristor and controls conduction period of the main thyristor according to a given duty factor, a gate control apparatus comprising a phase shifter for producing a square wave output corresponding to the duty factor, an integrator for integrating the output of the phase shifter, a relay circuit having two level settings and receiving the output from the integrator to produce an output which exhibits a hysterisis characteristic corresponding to the two level settings, and an amplifier for turning on the main thyristor in response to the output from the relay circuit and turning on the auxiliary thyristor upon the termination of the output from the relay circuit.
    • 在包括用于关断主晶闸管的主晶闸管和辅助晶闸管的半导体器件中,根据给定的占空因数控制主晶闸管的导通周期,门控制装置包括用于产生对应于 占空因数,用于积分移相器的输出的积分器,具有两个电平设置的继电器电路并且接收来自积分器的输出以产生表现出与两个电平设置相对应的滞后特性的输出,以及用于转动的放大器 在主晶闸管上响应于继电器电路的输出并在继电器电路的输出终止时接通辅助晶闸管。