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1. 发明申请

US20130175945A1 CIRCUIT AND METHOD FOR PREHEATING FILAMENTS AND BALLAST 审中-公开
标题翻译：用于预热线和电池的电路和方法
公开(公告)号：US20130175945A1
公开(公告)日：2013-07-11
申请号：US13811281
申请日：2011-09-01
申请人： Yuancheng Guo , Wei Chen , Jie Hong Jian , Hui Ling Xu
发明人： Yuancheng Guo , Wei Chen , Jie Hong Jian , Hui Ling Xu
IPC分类号： H05B41/04
CPC分类号： H05B41/04 , H05B41/044 , H05B41/295
摘要： A circuit for preheating filaments may include: a transistor; a first winding, one terminal of which being electrically connected with a collector of the transistor, and the other terminal being connected to an input of a power source; a second winding, one terminal of which being electrically connected with an emitter of the transistor, the other terminal being electrically connected with a base of the transistor, and the second winding being coupled with the first winding in a self-excitation mode; one or more load windings respectively connected with the filaments in series, and each of which being coupled with the first winding in a flyback mode; and a delay switch, configured to change into an on state from an off state when a trigger signal with a predetermined delay is received, so as to turn off the transistor.
摘要翻译：用于预热丝的电路可以包括：晶体管; 第一绕组，其一个端子与晶体管的集电极电连接，另一个端子连接到电源的输入端; 第二绕组，其一个端子与晶体管的发射极电连接，另一个端子与晶体管的基极电连接，第二绕组以自激模式与第一绕组耦合; 一个或多个负载绕组分别与灯丝串联连接，并且每个负载绕组以回扫模式与第一绕组耦合; 以及延迟开关，被配置为当接收到具有预定延迟的触发信号时，从断开状态变为导通状态，以便关断晶体管。

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