公开(公告)号：US5862043A

公开(公告)日：1999-01-19

申请号：US831203

申请日：1997-04-02

Applicant: Myung Joong Youn ,  Gun Woo Moon ,  Jun Young Lee ,  Che Hong Ahn

Inventor： Myung Joong Youn ,  Gun Woo Moon ,  Jun Young Lee ,  Che Hong Ahn

IPC: H02M3/28 ,  H02M1/00 ,  H02M1/42 ,  H02M3/335

CPC classification number: H02M1/4258 ,  H02M3/33592 ,  Y02B70/126 ,  Y02B70/1475

Abstract: A switch coupled active forward converter comprising an AC power supply circuit for supplying AC power, a filtering circuit connected to the AC power supply circuit, for filtering an output current from the AC power supply circuit, an up converter connected to the filtering circuit, for generating a saw tooth wave signal in response to an output voltage from the filtering circuit, the saw tooth wave signal having a peak value following an input voltage to the AC power supply circuit when a switch ON operation is performed, a clamping circuit connected in common to the up converter, AC power supply circuit and filtering circuit, for clamping an output voltage from the up converter to a desired level, a transformer having a primary coil connected to the up converter, and an output circuit connected to a secondary coil of the transformer.

Abstract translation: 一种开关耦合有源正激转换器，包括用于提供AC电力的AC电源电路，连接到AC电源电路的滤波电路，用于对来自AC电源电路的输出电流进行滤波;连接到滤波电路的上变频器，用于 响应于来自滤波电路的输出电压产生锯齿波信号，锯齿波信号在执行开关导通操作时具有跟随AC电源电路的输入电压的峰值，钳位电路被共同连接 至上变频器，交流电源电路和滤波电路，用于将来自上变频器的输出电压钳位到期望的电平，具有连接到上变频器的初级线圈的变压器以及连接到上转换器的次级线圈的输出电路 变压器。

公开(公告)号：US5712780A

公开(公告)日：1998-01-27

申请号：US747448

申请日：1996-11-12

Applicant: Myoung Joong Youn ,  Gun Woo Moon ,  Young Seok Jung ,  Chung Wook Roh ,  Che Hong Ahn

Inventor： Myoung Joong Youn ,  Gun Woo Moon ,  Young Seok Jung ,  Chung Wook Roh ,  Che Hong Ahn

IPC: H02M1/42 ,  H02M7/537

CPC classification number: H02M1/4258 ,  Y02B70/126

Abstract: The present invention provides a high quality power supply, and more particularly to an improved single-ended converter having the high power factor close to unity. In accordance with the present invention, the power supply comprises a power source, a low-pass filter, a rectifier including an inductor, a transformer primary coil, a transformer secondary coil, a ripple energy storing capacitor, a switching controller and an inductance element wound round a core where said transformer primary and secondary coils are wound. The inductance element being coupled to said rectifying means so that compensates a voltage applied to said inductor in said rectifying means with a voltage applied to said transformer primary coil.

Abstract translation: 本发明提供了一种高质量的电源，更具体地说，涉及一种功率因数接近一个的改进的单端转换器。 根据本发明，电源包括电源，低通滤波器，包括电感器的整流器，变压器初级线圈，变压器次级线圈，纹波储能电容器，开关控制器和电感元件 缠绕在所述变压器初级和次级线圈缠绕的芯上。 电感元件耦合到所述整流装置，以便以施加到所述变压器初级线圈的电压来补偿施加到所述整流装置中的所述电感器的电压。