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1. 发明授权

US4672228A Battery backup system for switched power supply 失效
标题翻译：电源备用系统用于开关电源
公开(公告)号：US4672228A
公开(公告)日：1987-06-09
申请号：US772134
申请日：1985-09-03
申请人： Jack W. Swoboda
发明人： Jack W. Swoboda
IPC分类号： H02J9/06
CPC分类号： H02J9/061 , Y10T307/615 , Y10T307/625
摘要： A battery back-up system providing a short term hold-up for a converter type switched power supply. The back-up system includes a regulated charger circuit for maintaining the battery in a charged condition and a direct current fan which cools the power supply in both the normal and battery back-up modes. Over-voltage protection for the system is provided during the battery back-up mode, and protection for the battery is provided against excessive battery charging voltages. The fan and regulator are automatically turned off when the battery reaches a deep discharge condition to protect the battery.
摘要翻译：一种电池备用系统，为转换器型开关电源提供短期保持。备用系统包括用于将电池保持在充电状态的稳压充电器电路和在正常和电池备用模式下冷却电源的直流风扇。在电池备份模式下，提供系统的过电压保护功能，可以防止过大的电池充电电压对电池进行保护。当电池达到深度放电条件时，风扇和调节器将自动关闭，以保护电池。

2. 发明授权

US4656570A Self-balancing push-pull square wave converter type of switched power supply 失效
标题翻译：自平衡推挽方波转换器类型的开关电源
公开(公告)号：US4656570A
公开(公告)日：1987-04-07
申请号：US778858
申请日：1985-09-23
申请人： Jack W. Swoboda
发明人： Jack W. Swoboda
IPC分类号： H02M3/337 , H02M3/335
CPC分类号： H02M3/3374
摘要： A switched power supply of the self-balancing push-pull square-wave converter type which includes a pair of switching transistors connected to the primary of a transformer and which are driven by a square-wave oscillator, and which also includes a pre-regulator chopper connected to the transistors. A ripple voltage appears on the output of the pre-regulator which is a function of the current flow through the individual transistors, and this voltage is coupled through a capacitor and a series resistor to the square-wave oscillator to terminate the drive current through each transistor for each cycle in which the current flow through the transistor exceeds a predetermined maximum.
摘要翻译：一种自平衡推挽方波转换器的开关电源，其包括连接到变压器的初级并由方波振荡器驱动的一对开关晶体管，并且还包括预调节器斩波器连接到晶体管。在预调节器的输出上出现纹波电压，这是通过单个晶体管的电流的函数，并且该电压通过电容器和串联电阻耦合到方波振荡器以终止通过每个晶体管的驱动电流每个周期的晶体管，其中流过晶体管的电流超过预定的最大值。

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