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1. 发明申请

WO1997045948A1 RCC SWITCHING POWER SUPPLY 审中-公开
标题翻译： RCC开关电源
公开(公告)号：WO1997045948A1
公开(公告)日：1997-12-04
申请号：PCT/JP1997001235
申请日：1997-04-10
申请人： SHINDENGEN ELECTRIC MANUFACTURING CO., LTD. , SHIMAMURA, Takashi
发明人： SHINDENGEN ELECTRIC MANUFACTURING CO., LTD.
IPC分类号： H02M03/338
CPC分类号： H02M1/34 , H02M3/33569 , H02M3/338 , H02M2001/342 , H02M2001/346 , Y02B70/1491
摘要： A RCC switching power is turned on/off repeatedly by a main switching means (9) to supply a switching current to a primary winding (31) and an energy is transferred from the primary side to the secondary side by flyback operation. A circuit composed of a series connection of a snubber capacitor (7) in a snubber circuit (5a to 5c) and an auxiliary switching means (3) is connected in parallel to the primary winding (31). When the auxiliary switching means (3) is closed by an auxiliary winding (4) while the main switching means (9) is opened, the auxiliary switching means (3) performs a third quadrant operation in which the snubber capacitor (7) is charged by the energy stored in the leakage inductance component of the primary winding (31) and then performs a first quadrant operation in which the snubber capacitor (7) is discharged to supply a current to the primary winding (31). By the current, the energy is transferred to the secondary winding side (32) or a smoothing capacitor (21) on the primary side is charged and the energy is transferred to a primary side rectifying/smoothing means (18). As a surge voltage is not applied to the main switching means (9) and the energy stored in the leakage inductance component is not wasted, a low noise and high efficiency RCC switching power supply (2a to 2c) is obtained.
摘要翻译：通过主开关装置（9）重复地接通/断开RCC开关电源，以向初级绕组（31）提供开关电流，并且通过反激操作将能量从初级侧传送到次级侧。由缓冲电路（5a〜5c）中的缓冲电容器（7）和辅助开关装置（3）的串联连接构成的电路与初级绕组（31）并联连接。当主开关装置（9）断开时辅助开关装置（3）由辅助绕组（4）闭合时，辅助开关装置（3）执行缓冲电容器（7）被充电的第三象限操作通过存储在初级绕组（31）的漏电感分量中的能量，然后执行其中缓冲电容器（7）放电以向初级绕组（31）提供电流的第一象限操作。通过电流，将能量传递到次级绕组侧（32），或者将初级侧的平滑电容器（21）充电，并将能量传递到初级侧整流/平滑装置（18）。由于不向主开关装置（9）施加浪涌电压，并且不会浪费存储在漏电感部件中的能量，所以能够获得低噪声，高效率的RCC开关电源（2a〜2c）。

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