AC voltage regulator
    1.
    发明授权
    AC voltage regulator 失效
    交流电压调节器

    公开(公告)号:US4168476A

    公开(公告)日:1979-09-18

    申请号:US814558

    申请日:1977-07-11

    IPC分类号: G05F5/00

    CPC分类号: G05F5/00

    摘要: The conductive period of a thyristor is controlled during each half cycle of an AC source to regulate the RMS voltage across a load at substantially a constant level as the AC source voltage fluctuates widely. A signal proportional to the voltage variation in the AC source is derived by monitoring that voltage and comparing it with a reference voltage. Conduction through the thyristor during each half cycle of the AC source is then delayed for a period of time in proportion to this signal so that the period of conductivity becomes inversely proportional thereto.

    摘要翻译: 在交流电源的每个半周期期间,控制晶闸管的导通周期,以便在交流电源电压波动很大的情况下,在整个负载上调节RMS电压基本上恒定的电平。 通过监测该电压并将其与参考电压进行比较,得到与AC电源电压变化成比例的信号。 然后在AC源的每个半周期期间通过晶闸管的导通与该信号成比例地延迟一段时间,使得电导率周期成反比。

    Oscillator circuit
    2.
    发明授权
    Oscillator circuit 失效
    振荡电路

    公开(公告)号:US4260960A

    公开(公告)日:1981-04-07

    申请号:US38211

    申请日:1979-05-11

    IPC分类号: H03K3/352 H03K3/35

    CPC分类号: H03K3/352

    摘要: Within an oscillator circuit of the type wherein positive or negative current is recurrently directed to the gate of a GTO device when the charge voltage levels across first and second capacitors respectively reach trigger levels, voltage sensing circuitry is incorporated to insure that the capacitors are charged during independent periods of time so that the duration of each portion in the frequency cycles is separately controllable.

    摘要翻译: 在这种类型的振荡器电路中,当跨过第一和第二电容器的充电电压电平分别达到触发电平时,正或负电流被反复地指向GTO装置的栅极,电压感测电路被并入,以确保电容器在 独立的时间段,使得频率周期中的每个部分的持续时间是可以单独控制的。

    Relaxation oscillator
    3.
    发明授权
    Relaxation oscillator 失效
    放松振荡器

    公开(公告)号:US4267527A

    公开(公告)日:1981-05-12

    申请号:US38210

    申请日:1979-05-11

    IPC分类号: H03K3/352 H03K3/35

    CPC分类号: H03K3/352

    摘要: Power consumption is substantially reduced and constant frequency is substantially derived without regulating the supply voltage for an oscillator circuit of the type wherein a capacitor is recurrently charged to a threshold voltage from the supply voltage and is then discharged through a gate turn-off (GTO) device. A reference voltage level proportional to the supply voltage is applied at the control electrode of the GTO device and positive current is applied at that control electrode when the differential between the charge voltage level and the reference voltage level reaches a positive trigger level, while negative current is applied thereat when that differential reaches a negative trigger level.

    摘要翻译: 功率消耗被大大降低,并且在不调节电容器从电源电压再次充电到阈值电压的类型的振荡器电路的电源电压的基础上实质地得到恒定频率,然后通过门极关断(GTO)放电, 设备。 在GTO装置的控制电极处施加与电源电压成比例的参考电压电平,当充电电压电平和参考电压电平之间的差达到正触发电平时,在该控制电极处施加正电流,而负电流 当该差分达到负触发电平时被应用。