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1. 发明授权

US6038146A High power factors, single stage harmonics correction converter 失效
标题翻译：高功率因数，单级谐波校正转换器
公开(公告)号：US6038146A
公开(公告)日：2000-03-14
申请号：US874412
申请日：1997-06-13
申请人： Edward Han Chen Luo , Piotr Markowski , Fu-Sheng Tsai
发明人： Edward Han Chen Luo , Piotr Markowski , Fu-Sheng Tsai
IPC分类号： H02M1/00 , H02M1/42 , H02M3/335 , H02M3/24 , H02M5/42 , H02M7/217
CPC分类号： H02M1/4258 , Y02B70/126
摘要： An AC-to-DC power converter (power supply) with high power factors and which minimizes the input charging current flowing through the separate inductor by locating the separate inductor between a full-bridge rectifier and the transformer but out of the storage capacitor's current path. In this manner, when the input voltage is sufficiently high, the converter draws input current into the transformer through the separate inductor, while current flowing to and charging the storage capacitor is unimpeded by the separate inductor. The current being drawn through the separate inductor and into the transformer may also be used to recharge the storage capacitor. Associated losses are reduced and the separate inductor may be reduced in size. Other embodiments eliminate the second primary winding in the transformer and place a second set of windings coupled to the separate inductor between the full-bridge rectifier and the storage capacitor, which reduces the current spike when the storage capacitor is recharged with current flowing through this path.
摘要翻译：具有高功率因数的AC到DC功率转换器（电源），并且通过将全桥整流器和变压器之间的分离电感器定位，而不是存储电容器的电流路径，使流过分离电感器的输入充电电流最小化。以这种方式，当输入电压足够高时，转换器通过单独的电感器将输入电流吸入变压器，而流向存储电容器的电流不受单独的电感器的阻碍。通过单独的电感器吸入并进入变压器的电流也可用于对存储电容器进行再充电。相关的损耗减小，单独的电感器可能会减小。其他实施例消除了变压器中的第二初级绕组，并且将第二组绕组耦合到全桥整流器和存储电容器之间的分离电感器，这在存储电容器被流过该路径的电流再充电时减小了电流尖峰。

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