Start-up for a switched-mode power supply
    1.
    发明授权
    Start-up for a switched-mode power supply 失效
    开关电源的启动

    公开(公告)号:US5200886A

    公开(公告)日:1993-04-06

    申请号:US838452

    申请日:1992-03-10

    IPC分类号: H02M3/335 H02M7/5375

    CPC分类号: H02M3/33507 H02M2001/0006

    摘要: It is intended to improve especially a switched-mode power supply operating in accordance with the flyback converter principle, in such a manner that it has a characteristic during the run-up phase which is easier on the components compared with previously. To keep the regulating voltage of the regulating circuit (Rk) of the switched-mode power supply constant during the run-up phase, a differentiating capacitor (Cd) is connected in parallel with a diode circuit (D1) in one case and between the cathode terminals of two diode circuits (D1 and D2) in the other case. Keeping the regulating voltage constant results in a uniformly linear running-up of the switched-mode power supply output voltage (Ua), as a result of which lastly the loading on various components is also reduced.

    摘要翻译: PCT No.PCT / DE90 / 00697 Sec。 371日期:1992年3月10日 102(e)1992年3月10日PCT PCT 1990年9月11日PCT公布。 公开号WO91 / 04605 日期为1991年04月4日。其目的在于提高特别是按照反激转换器原理工作的开关电源,使其具有在起动阶段期间的特性,比较容易 以前。 为了保持开关阶段电源的调节电路(Rk)的调节电压恒定,在一种情况下,差分电容(Cd)与二极管电路(D1)并联连接, 在另一种情况下,两个二极管电路(D1和D2)的阴极端子。 保持调节电压恒定导致开关模式电源输出电压(Ua)的均匀线性上升,结果最终也减少了各种部件上的负载。

    Primary side clock single-ended forward converter with connectible
secondary circuits and having switchable actual value feed for the
output voltage control
    2.
    发明授权
    Primary side clock single-ended forward converter with connectible secondary circuits and having switchable actual value feed for the output voltage control 失效
    具有可连接二次电路的初级侧时钟单端正激转换器,并具有用于输出电压控制的可切换实际值馈电

    公开(公告)号:US4672516A

    公开(公告)日:1987-06-09

    申请号:US830106

    申请日:1986-02-18

    IPC分类号: H02M3/28 H02M3/335 H02M3/24

    摘要: A single-ended flow converter which is clocked at the primary winding side and which is provided with a controller and monitor and comprises a plurality of switched power packs that are connected by secondary windings and are each composed of an electronic switch, a storage inductor, a free wheeling diode and a smoothing capacitor for supplying power to a DC user. The flow converter is compact and has high efficiency and has at least one secondary winding (T3 III) which has a further switch power pack (2) associated to it such that one electronic switch (V19) has its storage inductor (L2a) connected to the end of one winding of the secondary winding (T3 III) and has a second electronic switch (V18) which has its storage inductor (L2b) connected at the other end of the secondary winding (T3 III) and at least one of the free wheeling diodes (V7, V8) and the smoothing capacitors (C4 and C5) have at least one terminal connected to ground. A second switch (K1) is connected between one end of the secondary winding (T3 III) and the end of one further secondary winding (T3 III). A changeover switch (K2) is actuated depending upon the second switch (K1) has its first switching contact connected via a resistor (R5) are connected via a second resistor (R6) at the voltage output of another of said power packs (3). The common contact of the switch (K2) is connected to ground through a third resistor (R9) and is connected to the input of the controller (RU).

    摘要翻译: 一个单端流量转换器,其在初级绕组侧被计时,并且设置有控制器和监视器,并且包括通过次级绕组连接的多个开关电源组,每个由电子开关,存储电感器, 续流二极管和用于向DC用户供电的平滑电容器。 流量转换器紧凑并且具有高效率并且具有至少一个次级绕组(T3III),其具有与其相关联的另外的开关电源组件(2),使得一个电子开关(V19)的存储电感器(L2a)连接到 次级绕组(T3III)的一个绕组的端部并且具有第二电子开关(V18),其具有连接在次级绕组(T3III)的另一端的存储电感器(L2b)和至少一个自由 轮式二极管(V7,V8)和平滑电容器(C4和C5)至少有一个端子连接到地。 第二开关(K1)连接在次级绕组(T3III)的一端和一个另外的次级绕组(T3III)的端部之间。 根据第二开关(K1),其第一开关触点经由电阻器(R5)连接的转换开关(K2)通过第二电阻器(R6)在另一个所述电源组件(3)的电压输出端连接, 。 开关(K2)的常见触点通过第三个电阻(R9)连接到地,并连接到控制器(RÜ)的输入端。