专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07369386B2 Overcurrent protection for solid state switching system 有权
标题翻译：固态开关系统的过电流保护
公开(公告)号：US07369386B2
公开(公告)日：2008-05-06
申请号：US11048123
申请日：2005-01-31
申请人： Eric G. Rasmussen , John P. Thurk , Eric W. Suomi
发明人： Eric G. Rasmussen , John P. Thurk , Eric W. Suomi
IPC分类号： H02H9/08
CPC分类号： H02M1/44 , H02M1/32 , H02M5/293 , H02M2001/0009 , H05B39/00 , H05B39/044 , H05K1/0306 , H05K1/14 , H05K1/144 , H05K3/0061 , H05K3/222 , H05K2201/10166 , Y02B20/146
摘要： Current sensing resistors are connected directly to output terminals of MOSFETs forming the series switching stage of a PWM sinewave dimmer. An analog sensed current signal is coupled through an EMI resistant current link to comparators that provide an overcurrent indication in response to an overcurrent condition. A logic circuit overrides PWM control signals from a programmable controller, and operates drivers to render the series switching stage nonconductive and to render a clamp switching stage conductive until after the end of the current PWM duty cycle power on segment. The logic circuit sends an overcurrent signal through an optocoupler to an input of the programmable controller. The input of the controller is polled at a clock frequency for overcurrent signals and if the count exceeds a limit in any half cycle, or a maximum sum in sixteen half cycles of the AC supply, the series switching stage is rendered nonconductive and the clamp switching stage is rendered conductive pending a reset signal.
摘要翻译：电流检测电阻直接连接到形成PWM正弦波调光器的串联切换级的MOSFET的输出端。模拟感测电流信号通过抗EMI电流链路耦合到提供响应于过电流状况的过电流指示的比较器。逻辑电路覆盖来自可编程控制器的PWM控制信号，并且操作驱动器以使串联开关级不导通，并使钳位开关级导通，直到电流PWM占空比上电为止。逻辑电路通过光耦合器将过电流信号发送到可编程控制器的输入端。控制器的输入以过电流信号的时钟频率进行轮询，如果计数超过任何半周期的限制，或交流电源的十六个半周期内的最大和，则串联切换级变为非导通，钳位切换在复位信号之前，阶段被导通。

2. 发明授权

US06707256B2 Dimmer pack 失效
标题翻译：调光包
公开(公告)号：US06707256B2
公开(公告)日：2004-03-16
申请号：US10180200
申请日：2002-06-25
申请人： Bradley J. Brunker , Joseph W. Garvey , Eric W. Suomi , John P. Thurk
发明人： Bradley J. Brunker , Joseph W. Garvey , Eric W. Suomi , John P. Thurk
IPC分类号： H01J724
CPC分类号： H05B39/00
摘要： A self contained multiple dimming channel package includes a housing with a main power circuit board supported on its bottom wall and a control circuit board extending laterally and vertically to baffle air flow through the housing. A cross flow cooling fan forces air through an opening in the control board and across power switching modules and toroidal chokes mounted to the main board. Each power switching module includes a heat sink with fins parallel to the air flow, and the chokes are mounted in rows with their central openings aligned with the air flow. The power switching modules include circuits attached to the heat sinks with terminals releasably plugged into mating connectors on the main board. Circuit breaker switches are snapped into place in the housing. The front corners of the housing are provided with integral mounting bracket and handle members.
摘要翻译：自包含的多个调光通道封装包括：壳体，其主电源电路板支撑在其底壁上;以及控制电路板，横向和垂直地延伸到通过壳体的挡板气流。横流冷却风扇迫使空气通过控制板上的开口，并跨过电源开关模块和安装在主板上的环形扼流圈。每个功率切换模块包括散热片，散热片与空气流平行，并且扼流圈安装成行，其中心开口与气流对齐。功率开关模块包括连接到散热器的电路，端子可释放地插入主板上的配合连接器。断路器开关卡入到外壳中。外壳的前角设有一体式安装支架和手柄部件。

3. 发明授权

US07019469B1 Sinewave dimmer control method 失效
标题翻译：正弦调光控制方法
公开(公告)号：US07019469B1
公开(公告)日：2006-03-28
申请号：US10971682
申请日：2004-10-21
申请人： John P. Thurk , Eric W. Suomi , Eric G. Rasmussen
发明人： John P. Thurk , Eric W. Suomi , Eric G. Rasmussen
IPC分类号： H05B37/00
CPC分类号： H05B39/048 , H02M1/38 , H02M5/293 , H05B41/3924 , Y10S315/04
摘要： An input line filter separates an ac sinusoidal power source from a power switching stage having a series switching section and a clamp switching section. Both the series switching section and a clamp switching section include complementary pairs of high power and high speed MOSFETs. The series switching section is connected in series between the input line filter and the inductor of an output load filter between the power switching stage and a load. The clamp switching section is connected to shunt the inductor and load. Synchronous operation is achieved by alternately operating the series and clamp switching sections to conductive conditions at a high pulse width modulation frequency. The duty cycle is selected to provide a sinusoidal output waveform with a desired amplitude. A microprocessor based programmable controller provides control signals for alternate conduction of the series and clamp switching sections. A dead time interval stored in memory in the controller separates the control signals for reliable and efficient operation. The dead time interval may be constant, or may be varied in accordance with load power variations.
摘要翻译：输入线滤波器将交流正弦电源与具有串联切换部分和钳位切换部分的功率开关级分离。串联开关部分和钳位开关部分都包括互补的大功率和高速MOSFET对。串联开关部分串联连接在输入线路滤波器和功率开关级与负载之间的输出负载滤波器的电感器之间。钳位开关部分被连接以分流电感和负载。通过交替地以高脉冲宽度调制频率将串联和钳位开关部分交替地导通到导电条件来实现同步操作。选择占空比以提供具有所需幅度的正弦输出波形。基于微处理器的可编程控制器提供用于串联和钳位切换部分的交替传导的控制信号。存储在控制器存储器中的死区时间间隔分离出控制信号，以实现可靠高效的操作。死区间隔可以是恒定的，或者可以根据负载功率变化而变化。

4. 发明授权

US07382595B2 Low voltage overcurrent protection for solid state switching system 有权
标题翻译：固态开关系统的低压过流保护
公开(公告)号：US07382595B2
公开(公告)日：2008-06-03
申请号：US11137053
申请日：2005-05-25
申请人： John P. Thurk , Eric G. Rasmussen , Eric W. Suomi
发明人： John P. Thurk , Eric G. Rasmussen , Eric W. Suomi
IPC分类号： H02H9/08
CPC分类号： H05B41/2856 , Y02B20/186
摘要： A current sensing transformer having a low impedance primary winding is connected in series with a filter and load circuit supplied with output current by a high frequency switching PWM power supply such as a sinewave dimmer. Sensed output current is supplied to a microprocessor based programmable controller. The controller performs a routine including a family of overcurrent tests. Tests of the family are satisfied by the presence of different output current values for different time durations. At least one of the tests is enabled only at low requested output voltages or dimming levels. In response to satisfaction of any of the tests, a series power switching stage of the power supply is rendered nonconductive to shut down the power supply.
摘要翻译：具有低阻抗初级绕组的电流感测变压器与通过诸如正弦波调光器的高频开关PWM电源提供输出电流的滤波器和负载电路串联连接。感应输出电流提供给基于微处理器的可编程控制器。控制器执行包括一系列过电流测试的程序。在不同时间段内出现不同的输出电流值，满足家庭测试。至少有一个测试仅在低要求的输出电压或调光级别启用。响应于任何测试的满足，电源的串联电源开关级不导通以关闭电源。

5. 发明授权

US06849943B2 Power module package for high frequency switching system 有权
标题翻译：电源模块封装，用于高频开关系统
公开(公告)号：US06849943B2
公开(公告)日：2005-02-01
申请号：US10457067
申请日：2003-06-06
申请人： John P. Thurk , Eric W. Suomi , Bradley J. Brunker
发明人： John P. Thurk , Eric W. Suomi , Bradley J. Brunker
IPC分类号： H02M1/44 , H02M7/00 , H05B39/00 , H05B39/04 , H05K1/03 , H05K1/14 , H05K3/22 , H01L23/34
CPC分类号： H02M1/44 , H01L2924/0002 , H02M7/003 , H05B39/00 , H05B39/044 , H05K1/0306 , H05K1/144 , H05K3/0061 , H05K3/222 , H05K2201/10166 , Y02B20/146 , H01L2924/00
摘要： A heat sink with fins has a flat, planar surface soldered to a metallic layer at one surface of a flat, planar ceramic layer. The opposite surface of the ceramic layer has a metallic pattern including base areas for high power, high frequency load switching MOSFETs. Lead frames are soldered between the lead frame base areas and base contact areas of the MOSFET packages. Thermal conduction between the MOSFETs and the heat sink dissipates the heat from switching losses. A gate drive circuit board for the load switching system is supported spaced from the and is separated from the MOSFETs by a thermally blocking air gap, with the component side of the gate drive circuit board facing away from the MOSFETs. Spade terminals of the lead frames extend through openings in the gate drive circuit board to route high power signals independently of the gate driver circuit board.
摘要翻译：具有翅片的散热器具有平坦的平坦表面，其在平坦的陶瓷层的一个表面处焊接到金属层。陶瓷层的相对表面具有包括用于高功率高频负载开关MOSFET的基极区域的金属图案。引线框架焊接在引线框架基极区域和MOSFET封装的基极接触区域之间。 MOSFET和散热片之间的热传导消耗了开关损耗的热量。用于负载开关系统的栅极驱动电路板通过热阻隔气隙与MOSFET间隔开并与MOSFET分离，栅极驱动电路板的元件侧面向远离MOSFET。引线框架的铲形端子延伸穿过栅极驱动电路板中的开口，以独立于栅极驱动器电路板路由高功率信号。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式