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1. 发明授权

US07106602B2 Switching-bursting method and apparatus for reducing standby power and improving load regulation in a DC—DC converter 失效
标题翻译：用于降低待机功率并改善DC-DC转换器中的负载调节的开关断路方法和装置
公开(公告)号：US07106602B2
公开(公告)日：2006-09-12
申请号：US10902228
申请日：2004-07-28
申请人： Samuel P. Mabanta , Donnifer Reyes , Mirasol Ponce
发明人： Samuel P. Mabanta , Donnifer Reyes , Mirasol Ponce
IPC分类号： H02M3/338
CPC分类号： H02M3/3385 , H02M2001/0032 , Y02B70/16
摘要： A circuit and corresponding method for reducing standby power and improving no-load to full-load regulation for ringing choke converters by maintaining a reduced duty cycle, with longer off time at no-load, while maintaining the output voltage swing closer to the full-load level. This reduced duty cycle prevents the output voltage from swinging high with respect to the full-load level, thereby providing good no-load and full-load output regulation in open feedback loop systems. The circuit and method provides very low no-load switching frequency and duty cycle by increasing the off time of the main switch through use of a turn off transistor driven by a zener diode, thereby maintaining conduction even with a very small control current and prolonging the off time of the main switch. The circuit and method achieves the benefits preferably using only less costly basic discrete converter components instead of more costly integrated circuits.
摘要翻译：通过保持减小的占空比，在空载时间较短的同时保持输出电压摆幅更接近全频，从而降低待机功率并改善空载负载到满载调节的电路和相应方法，负载水平。这种减小的占空比可以防止输出电压相对于满载电平摆动高电平，从而在开环反馈环路系统中提供良好的空载和全负载输出调节。该电路和方法通过使用由齐纳二极管驱动的关断晶体管来增加主开关的关断时间，从而提供非常低的无负载开关频率和占空比，从而即使在非常小的控制电流下也能保持导通，并延长主开关的关闭时间。电路和方法优点仅使用较低成本的基本离散转换器部件而不是更昂贵的集成电路。

2. 发明申请

US20050024895A1 Switching-bursting method and apparatus for reducing standby power and improving load regulation in a DC-DC converter 失效
标题翻译：用于降低待机功率并改善DC-DC转换器中的负载调节的开关断路方法和装置
公开(公告)号：US20050024895A1
公开(公告)日：2005-02-03
申请号：US10902228
申请日：2004-07-28
申请人： Samuel Mabanta , Donnifer Reyes , Mirasol Ponce
发明人： Samuel Mabanta , Donnifer Reyes , Mirasol Ponce
IPC分类号： H02M3/335 , H02M3/338 , H02P20060101
CPC分类号： H02M3/3385 , H02M2001/0032 , Y02B70/16
摘要： A circuit and corresponding method for reducing standby power and improving no-load to full-load regulation for ringing choke converters by maintaining a reduced duty cycle, with longer off time at no-load, while maintaining the output voltage swing closer to the full-load level. This reduced duty cycle prevents the output voltage from swinging high with respect to the full-load level, thereby providing good no-load and full-load output regulation in open feedback loop systems. The circuit and method provides very low no-load switching frequency and duty cycle by increasing the off time of the main switch through use of a turn off transistor driven by a zener diode, thereby maintaining conduction even with a very small control current and prolonging the off time of the main switch. The circuit and method achieves the benefits preferably using only less costly basic discrete converter components instead of more costly integrated circuits.
摘要翻译：通过保持减小的占空比，在空载时间较短的同时保持输出电压摆幅更接近全频，从而降低待机功率并改善空载负载到满载调节的电路和相应方法，负载水平。这种减小的占空比可以防止输出电压相对于满载电平摆动高电平，从而在开环反馈环路系统中提供良好的空载和全负载输出调节。该电路和方法通过使用由齐纳二极管驱动的关断晶体管来增加主开关的关断时间来提供非常低的无负载开关频率和占空比，从而即使在非常小的控制电流下也可以保持导通，并延长主开关的关闭时间。电路和方法优点仅使用较低成本的基本离散转换器部件而不是更昂贵的集成电路。

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