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    • 4. 发明授权
    • D.C.-d.c. converter with a transformer and a reactance coil
    • 直升机 变压器和电抗线圈
    • US06323627B1
    • 2001-11-27
    • US09623112
    • 2000-11-15
    • Claus SchmiedererRobert Kern
    • Claus SchmiedererRobert Kern
    • G05F110
    • H05B41/2885H02M3/155H05B41/2882Y02B20/202
    • A DC-DC converter having a transformer, a reactance coil and a controllable switch for turning a DC supply voltage on and off. The contact gap of a switching transistor is set at a reference potential at a connecting tap between a primary winding and a secondary winding of the reactance coil, which is connected like a transformer with a certain transformation ratio. The anode-cathode segment of a diode and an output capacitor are set at reference potentials in series with the secondary winding of the reactance coil, with the output voltage for a load being applied across the output capacitor. The DC supply voltage is supplied to the primary winding of the reactance coil over an inductance arrangement, and a capacitance arrangement is arranged in parallel with the contact gap of the switching transistor so that a series resonant circuit, which is operative in the turn-on and turn-off phases of the switching transistor, is provided by the inductance arrangement and the capacitance arrangement.
    • 一种具有变压器,电抗线圈和用于开启和关闭直流电源电压的可控开关的DC-DC转换器。 开关晶体管的接触间隙在电抗线圈的初级绕组和次级绕组之间的连接分接头处被设定为基准电位,其以变换比例变化地连接。 二极管的阳极 - 阴极段和输出电容器被设置为与电抗线圈的次级绕组串联的参考电位,负载的输出电压施加在输出电容器两端。 直流电源电压通过电感装置提供给电抗线圈的初级绕组,并且电容布置与开关晶体管的接触间隙并联布置,使得串联谐振电路在导通时工作 和开关晶体管的截止相位由电感布置和电容布置提供。
    • 8. 发明授权
    • Method for controlling the power supplied by an electrical circuit, in
particular, a sinusoidal source
    • 用于控制由电路,特别是正弦源提供的电力的方法
    • US5821635A
    • 1998-10-13
    • US817981
    • 1997-04-25
    • Robert Kern
    • Robert Kern
    • G05F1/45H02M5/257G05F1/00
    • H02M5/2573Y10T307/406
    • A method for controlling the power supplied by a sinusoidal source (1) wherein the power supplied is determined, on the one hand, by the integer number of the pulses comprised in a burst which is fully switched through to the load (17) at the output of the circuit and, on the other hand, by the length of the last phase angle-controlled pulse within each burst. To provide the actuation signal for a switch which connects the sinusoidal pulses to the load, the zero passages of the sinusoidal pulses (A) of the sinusoidal source (1) are determined in a zero passage detector (5). A division circuit (7) generates trigger pulses (C) of a lower frequency from the zero passage pulses (B), which trigger pulses reset the ramp voltage (D) of a sawtooth generator (9). The ramp voltage (D) is compared in a comparator (15) to a regulated quantity (E) of a desired value device (11). The comparator then emits the actuation signal (F) to a power switch (4) for controlling the connection of the burst of pulses to the load when the ramp voltage (D) exceeds the regulated quantity (E).
    • PCT No.PCT / DE96 / 01261 Sec。 371日期1997年04月25日 102(e)1997年4月25日PCT PCT 1996年7月12日PCT公布。 出版物WO97 / 08601 日期1997年3月6日一种用于控制由正弦源(1)提供的功率的方法,其中所提供的功率一方面由包括在完全切换到负载的脉冲串中的整数脉冲确定 (17),另一方面是每个脉冲串内的最后相位角度控制脉冲的长度。 为了提供将正弦脉冲连接到负载的开关的致动信号,在零通过检测器(5)中确定正弦源(1)的正弦脉冲(A)的零通道。 除法电路(7)从零通过脉冲(B)产生较低频率的触发脉冲(C),触发脉冲(C)触发脉冲复位锯齿波发生器(9)的斜坡电压(D)。 斜坡电压(D)在比较器(15)中与期望值器件(11)的调节量(E)进行比较。 当斜坡电压(D)超过调节量(E)时,比较器然后将致动信号(F)发射到功率开关(4),用于控制脉冲串与负载的连接。