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1. 发明申请

WO2008120012A3 FORWARD POWER CONVERTER CONTROLLERS 审中-公开
标题翻译：前转换器控制器
公开(公告)号：WO2008120012A3
公开(公告)日：2008-11-27
申请号：PCT/GB2008050220
申请日：2008-03-27
申请人： CAMBRIDGE SEMICONDUCTOR LTD , JACQUES RUSSELL , RYAN PAUL , MCKAY CATRIONA , DE SILVA DEVARAHANDI INDIKA MA , GARNER DAVID M , LALITHAMBIKA VINOD A
发明人： JACQUES RUSSELL , RYAN PAUL , MCKAY CATRIONA , DE SILVA DEVARAHANDI INDIKA MAHESH , GARNER DAVID M , LALITHAMBIKA VINOD A
IPC分类号： H02M3/335 , H02M1/32
CPC分类号： H02M3/33538 , H02M1/32 , H02M3/33507 , Y02B70/1433
摘要： This invention relates to control techniques and controllers for resonant discontinuous forward power converters (RDFCs). A method of controlling a resonant discontinuous forward converter (RDFC), said converter including a transformer (702) with primary (702p) and secondary (702s) matched polarity windings and a switch (704) to, in operation, cyclically switch DC power to said primary winding (702p) of said transformer (702), said converter further having a DC output coupled to said secondary winding (702s) of said converter said method comprising: sensing a primary winding signal during an on period of said switch (704), said primary winding signal representing a current in said primary winding (702p), comparing said sensed primary winding signal wit a threshold value; and controlling one or both of an on and off duration of said switch (704) in response to said comparison.
摘要翻译：本发明涉及用于谐振不连续正向功率转换器（RDFC）的控制技术和控制器。一种控制谐振不连续正向转换器（RDFC）的方法，所述转换器包括具有初级（702p）和次级（702s）匹配极性绕组的变压器（702）和开关（704），以在操作中将DC电力循环地切换到所述转换器（702）的所述初级绕组（702p），所述转换器还具有耦合到所述转换器的所述次级绕组（702s）的DC输出，所述方法包括：在所述开关（704）的接通周期期间感测初级绕组信号，所述初级绕组信号表示所述初级绕组（702p）中的电流，将所述感测到的初级绕组信号与阈值进行比较; 以及响应于所述比较来控制所述开关（704）的接通和关断持续时间中的一个或两个。

2. 发明申请

WO2007135457A2 SWITCH MODE POWER SUPPLY CONTROLLERS 审中-公开
标题翻译：开关电源控制器
公开(公告)号：WO2007135457A2
公开(公告)日：2007-11-29
申请号：PCT/GB2007050260
申请日：2007-05-14
申请人： CAMBRIDGE SEMICONDUCTOR LTD , GARNER DAVID M , COULSON DAVID ROBERT , DE SILVA DEVARAHANDI INDIKA MA , KUMAR JAYARAMAN , LALITHAMBIKA VINOD A
发明人： GARNER DAVID M , COULSON DAVID ROBERT , DE SILVA DEVARAHANDI INDIKA MA , KUMAR JAYARAMAN , LALITHAMBIKA VINOD A
CPC分类号： H02M3/33507
摘要： This invention relates to SMPS controllers employing primary side sensing to detect a point of zero magnetic flux, at which the output voltage of the SMPS may be sampled accurately on the primary side. We describe a switch mode power supply (SMPS) controller for regulating the output voltage of an SMPS is response to a feedback signal from an auxilliary winding of a magnetic energy storage device forming part of an output circuit of the SMPS, the SMPS controller comprising: a reference level input to receive an output reference level signal; an input to receive said feedback signal, said feedback signal being responsive to a voltage on said auxilliary winding of said magnetic energy storage device; an integrator to integrate a difference between said feedback signal and a first fixed reference level signal; a first comparator to compare an output of said integrator with a second fixed reference level signal and to provide an output responsive to said comparison for regulating said SMPS output voltage.
摘要翻译：本发明涉及采用初级侧检测来检测零磁通点的SMPS控制器，SMPS的输出电压可以在初级侧被精确地采样。我们描述用于调节SMPS的输出电压的开关模式电源（SMPS）控制器是响应来自构成SMPS的输出电路的一部分的磁能存储装置的辅助绕组的反馈信号，SMPS控制器包括：用于接收输出参考电平信号的参考电平输入; 用于接收所述反馈信号的输入端，所述反馈信号响应于所述磁能存储装置的所述辅助绕组上的电压; 积分器，用于积分所述反馈信号和第一固定参考电平信号之间的差; 第一比较器，用于将所述积分器的输出与第二固定参考电平信号进行比较，并提供响应于所述比较的输出来调节所述SMPS输出电压。

3. 发明申请

WO2008132509A3 BIPOLAR TRANSISTOR DRIVERS 审中-公开
标题翻译：双极晶体管驱动器
公开(公告)号：WO2008132509A3
公开(公告)日：2008-12-24
申请号：PCT/GB2008050300
申请日：2008-04-25
申请人： CAMBRIDGE SEMICONDUCTOR LTD , GARNER DAVID M , LALITHAMBIKA VINOD A , RYAN PAUL , JACQUES RUSSELL
发明人： GARNER DAVID M , LALITHAMBIKA VINOD A , RYAN PAUL , JACQUES RUSSELL
IPC分类号： H03K17/082
CPC分类号： H03K17/0422 , H02M3/33507 , H03F3/2171 , H03F3/45183 , H03F2203/45322 , H03F2203/45352 , H03F2203/45396 , H03F2203/45466 , H03F2203/45506 , H03K17/0406 , H03K17/0826 , H03K17/0828 , H03K17/567 , H03K17/64 , Y02B70/1433
摘要： We describe a switching power converter comprising a bipolar switching device (BJT or IGBT) switching an inductive load, and including a closed-loop control system. The control system comprises a voltage sensing system to sense a voltage on a collector terminal of the sw itching device and provide a voltage sense signal; a controller; and a drive modulation system coupled to an output of the controller for modulating a drive to the control terminal of said bipolar switching device responsive to a controller control signal; wherein said controller is configured to monitor changes in the sensed voltage during a period when said switching device is switched on and to control said drive modulation system to control the degree of saturation of said bipolar switching device when the device is switched on and hence improve turn-off times.
摘要翻译：我们描述了包括切换感性负载的双极开关器件（BJT或IGBT）以及包括闭环控制系统的开关功率转换器。该控制系统包括：电压感测系统，用于感测开关装置的集电极端子上的电压并提供电压感测信号; 控制器; 以及驱动调制系统，其耦合到所述控制器的输出端，用于响应于控制器控制信号来调制到所述双极开关装置的控制端子的驱动; 其中所述控制器被配置成监测所述开关装置接通期间的感测电压的变化，并且控制所述驱动调制系统以在所述装置接通时控制所述双极开关装置的饱和度并因此改善转向 - 时间。

4. 发明申请

WO9966968A2 GAS OUTLET BARREL RETENTION APPARATUS 审中-公开
标题翻译：气体出口巴条保持装置
公开(公告)号：WO9966968A2
公开(公告)日：1999-12-29
申请号：PCT/US9913973
申请日：1999-06-21
申请人： HILL ROM CO INC , COPE ROBERT L III , GARNER DAVID M , COLBURN ERIC R
发明人： COPE ROBERT L III , GARNER DAVID M , COLBURN ERIC R
IPC分类号： F16L5/00 , A61M20060101 , A61M16/00 , F16L37/00 , F16L37/24 , F16L37/26 , F16L37/60 , A61M
CPC分类号： F16L37/60 , Y10T137/6184 , Y10T137/6195 , Y10T137/698
摘要： A gas outlet apparatus (10) is configured to provide a medical gas outlet for a gas supply line (62). The apparatus (10) includes a front cover (12) formed to include a gas outlet opening (14), a back plate (24) coupled to the front cover (12), and a gas outlet barrel (30) having an inlet end, an outlet end (80), and a valve located between the inlet end and the outlet end (80). The apparatus (10) also includes a retention portion located on the back plate (24). The retention portion is configured to engage the barrel (30) adjacent the outlet end (80) to secure the barrel (30) to the back plate (24) and the cover (12) and with the outlet end (80) of the barrel (30) in alignment with the gas outlet opening (14) formed in the front cover (12).
摘要翻译：气体出口装置（10）构造成提供用于气体供应管线（62）的医疗气体出口。装置（10）包括形成为包括气体出口开口（14），耦合到前盖（12）的后板（24）和气体出口筒（30）的前盖（12），出口端（80）和位于入口端和出口端（80）之间的阀。设备（10）还包括位于背板（24）上的保持部分。保持部分构造成与邻近出口端（80）的筒（30）接合，以将筒（30）固定到背板（24）和盖（12）上并与筒体的出口端（80）（30）与形成在前盖（12）中的气体出口（14）对准。

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