公开(公告)号：US20100079132A1

公开(公告)日：2010-04-01

申请号：US12286627

申请日：2008-10-01

申请人： Gerald W. Steele ,  Edward Mullins

发明人： Gerald W. Steele ,  Edward Mullins

IPC分类号： G01R1/30

CPC分类号： G01R1/30 ,  G01R1/203

摘要： An integrated circuit current shunt amplifier (2A) includes an amplifier (9) having a (+) input connected to a first terminal (5A) of a shunt resistor (RSHUNT). An output transistor (24) has a gate coupled to an output of the amplifier, a source coupled to a (−) input of the amplifier, and a drain coupled to a first terminal of an output resistor (ROUT). A gain resistor (RGAIN) is coupled between the (−) input of the amplifier and a second terminal of the shunt resistor. The gain resistor has a temperature coefficient which is essentially the same as that of the shunt resistor.A voltage regulator (26) can be coupled between the second terminal of the shunt resistor and a low-side supply voltage terminal (27) of the amplifier. A charge pump (30) can provide a below-ground voltage on a second terminal of the output resistor. A difference amplifier (31) coupled to the drain and referenced to the below-ground voltage produces an output voltage (Vout) referenced to ground.

摘要翻译： 集成电路电流分流放大器（2A）包括具有连接到分流电阻器（RSHUNT）的第一端子（5A）的（+）输入的放大器（9）。 输出晶体管（24）具有耦合到放大器的输出的栅极，耦合到放大器的（ - ）输入的源极和耦合到输出电阻器（ROUT）的第一端子的漏极。 增益电阻（RGAIN）耦合在放大器的（ - ）输入端和分流电阻的第二端之间。 增益电阻的温度系数基本上与分流电阻的温度系数相同。 电压调节器（26）可以耦合在分流电阻器的第二端子和放大器的低侧电源电压端子（27）之间。 电荷泵（30）可以在输出电阻器的第二端上提供地下电压。 耦合到漏极并参考地下电压的差分放大器（31）产生参考地的输出电压（Vout）。

公开(公告)号：US07683604B1

公开(公告)日：2010-03-23

申请号：US12286627

申请日：2008-10-01

申请人： Gerald W. Steele ,  Edward Mullins

发明人： Gerald W. Steele ,  Edward Mullins

IPC分类号： G01R1/30

CPC分类号： G01R1/30 ,  G01R1/203

摘要： An integrated circuit current shunt amplifier (2A) includes an amplifier (9) having a (+) input connected to a first terminal (5A) of a shunt resistor (RSHUNT). An output transistor (24) has a gate coupled to an output of the amplifier, a source coupled to a (−) input of the amplifier, and a drain coupled to a first terminal of an output resistor (ROUT). A gain resistor (RGAIN) is coupled between the (−) input of the amplifier and a second terminal of the shunt resistor. The gain resistor has a temperature coefficient which is essentially the same as that of the shunt resistor. A voltage regulator (26) can be coupled between the second terminal of the shunt resistor and a low-side supply voltage terminal (27) of the amplifier. A charge pump (30) can provide a below-ground voltage on a second terminal of the output resistor. A difference amplifier (31) coupled to the drain and referenced to the below-ground voltage produces an output voltage (Vout) referenced to ground.

摘要翻译： 集成电路电流分流放大器（2A）包括具有连接到分流电阻器（RSHUNT）的第一端子（5A）的（+）输入的放大器（9）。 输出晶体管（24）具有耦合到放大器的输出的栅极，耦合到放大器的（ - ）输入的源极和耦合到输出电阻器（ROUT）的第一端子的漏极。 增益电阻（RGAIN）耦合在放大器的（ - ）输入端和分流电阻的第二端之间。 增益电阻的温度系数基本上与分流电阻的温度系数相同。 电压调节器（26）可以耦合在分流电阻器的第二端子和放大器的低侧电源电压端子（27）之间。 电荷泵（30）可以在输出电阻器的第二端上提供地下电压。 耦合到漏极并参考地下电压的差分放大器（31）产生参考地的输出电压（Vout）。

公开(公告)号：US20110033985A1

公开(公告)日：2011-02-10

申请号：US12910933

申请日：2010-10-25

申请人： Ubol Udompanyavit ,  Sreenivasan K. Koduri ,  Gerald W. Steele ,  Jason Marc Cole ,  Steven Kummerl

发明人： Ubol Udompanyavit ,  Sreenivasan K. Koduri ,  Gerald W. Steele ,  Jason Marc Cole ,  Steven Kummerl

IPC分类号： H01L21/60

CPC分类号： H01L23/495 ,  H01L23/3107 ,  H01L23/49548 ,  H01L24/28 ,  H01L24/48 ,  H01L24/49 ,  H01L2224/05554 ,  H01L2224/2919 ,  H01L2224/48091 ,  H01L2224/48195 ,  H01L2224/48247 ,  H01L2224/49171 ,  H01L2924/00014 ,  H01L2924/01046 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/14 ,  H01L2924/15747 ,  H01L2924/181 ,  H01L2924/0665 ,  H01L2924/00 ,  H01L2924/00012 ,  H01L2224/45099 ,  H01L2224/45015 ,  H01L2924/207

摘要： An integrated circuit package that comprises a lead frame, an integrated circuit located on the lead frame and a shunt resistor coupled to the lead frame and to the integrated circuit. The shunt resistor has a lower temperature coefficient of resistance than the lead frame, and the lead frame has a lower resistivity than the shunt resistor. The shunt resistor has a low-resistance coupling to external leads of the lead frame, or, the shunt resistor has its own integrated external leads.

摘要翻译： 一种集成电路封装，包括引线框架，位于引线框架上的集成电路和耦合到引线框架和集成电路的分流电阻器。 分流电阻器具有比引线框架更低的电阻温度系数，并且引线框架具有比分流电阻器更低的电阻率。 分流电阻器具有与引线框架的外部引线的低电阻耦合，或者分流电阻器具有其自己的集成外部引线。

公开(公告)号：US20090174479A1

公开(公告)日：2009-07-09

申请号：US12287762

申请日：2008-10-14

申请人： Shoubao Yan ,  Gerald W. Steele ,  David R. Baum

发明人： Shoubao Yan ,  Gerald W. Steele ,  David R. Baum

IPC分类号： H03F3/45

CPC分类号： H03F3/45475 ,  H03F1/0216 ,  H03F3/387 ,  H03F3/393 ,  H03F3/45219 ,  H03F3/45632 ,  H03F3/45928 ,  H03F2200/513

摘要： A differential amplifier (1D) includes circuitry (5,R1,R2,52) coupling a common mode component of an input voltage (Vin+−Vin−) to a maximum voltage selector circuit (53) that produces an internal voltage (VRAIL-TOP) equal to the larger of a first supply voltage (VREG) and the common mode component. An input amplifier circuit (46) of the differential amplifier is powered by the internal voltage. The input voltage (Vin+−Vin−) is coupled to inputs (41A,B) of the input amplifier circuit (46). Outputs (64A,B) of the input amplifier circuit (46) are amplified by an output amplifier (50).

摘要翻译： 差分放大器（1D）包括将输入电压（Vin + -Vin-）的共模分量耦合到产生内部电压的最大电压选择电路（53）的电路（5，R1，R2,52）（VRAIL-TOP ）等于第一电源电压（VREG）和共模分量中较大者。 差分放大器的输入放大器电路（46）由内部电压供电。 输入电压（Vin + -Vin-）耦合到输入放大器电路（46）的输入（41A，B）。 输入放大器电路（46）的输出（64A，B）由输出放大器（50）放大。

公开(公告)号：US08847438B2

公开(公告)日：2014-09-30

申请号：US12218281

申请日：2008-07-14

申请人： Gerald W. Steele ,  Tony R. Larson

发明人： Gerald W. Steele ,  Tony R. Larson

IPC分类号： H02J1/00 ,  H02J1/10

CPC分类号： H02J1/102 ,  Y10T307/74 ,  Y10T307/865 ,  Y10T307/937

摘要： A hot swap controller includes a shunt resistor (32-1,2) and a power transistor (37-1,2) having a source coupled to a load maintains the first power transistor in a fully-turned-on condition to cause it to deliver a load current contribution (IL1,2) which flows through the shunt resistor and the power transistor to the load (25). Current sensing circuitry (35-1,2) produces a first control signal (V45-1,2-V47-1,2) equal to the difference between a DC component (V47-1) proportional to a first load current contribution (IL1) flowing in the first shunt resistor and a feedback-based component (V45-1). A control amplifier (49-1,2) produces a second control signal (V51-1,2) in response to the first control signal to modify a drive signal (53-1) to the power transistor so as to reduce a channel resistance of the power transistor if the first control signal exceeds a predetermined level.

摘要翻译： 热插拔控制器包括分流电阻器（32-1,2）和具有耦合到负载的源极的功率晶体管（37-1,2），其将第一功率晶体管保持在完全导通状态，以使其成为 提供流过分流电阻器和功率晶体管到负载（25）的负载电流贡献（IL1,2）。 电流感测电路（35-1,2）产生等于与第一负载电流贡献（IL1）成比例的DC分量（V47-1）之间的差的第一控制信号（V45-1,2-V47-1,2） ）在第一分流电阻器和基于反馈的组件（V45-1）中流动。 控制放大器（49-1,2）响应于第一控制信号产生第二控制信号（V51-1,2），以将功率晶体管的驱动信号（53-1）修改为减小通道电阻 的功率晶体管，如果第一控制信号超过预定电平。

公开(公告)号：US07821333B2

公开(公告)日：2010-10-26

申请号：US12287762

申请日：2008-10-14

申请人： Shoubao Yan ,  Gerald W. Steele ,  David R. Baum

发明人： Shoubao Yan ,  Gerald W. Steele ,  David R. Baum

IPC分类号： H03F1/02

CPC分类号： H03F3/45475 ,  H03F1/0216 ,  H03F3/387 ,  H03F3/393 ,  H03F3/45219 ,  H03F3/45632 ,  H03F3/45928 ,  H03F2200/513

摘要： A differential amplifier (1D) includes circuitry (5,R1,R2,52) coupling a common mode component of an input voltage (Vin+−Vin−) to a maximum voltage selector circuit (53) that produces an internal voltage (VRAIL-TOP) equal to the larger of a first supply voltage (VREG) and the common mode component. An input amplifier circuit (46) of the differential amplifier is powered by the internal voltage. The input voltage (Vin+−Vin−) is coupled to inputs (41A,B) of the input amplifier circuit (46). Outputs (64A,B) of the input amplifier circuit (46) are amplified by an output amplifier (50).

摘要翻译： 差分放大器（1D）包括将输入电压（Vin + -Vin-）的共模分量耦合到产生内部电压的最大电压选择电路（53）的电路（5，R1，R2,52）（VRAIL-TOP ）等于第一电源电压（VREG）和共模分量中较大者。 差分放大器的输入放大器电路（46）由内部电压供电。 输入电压（Vin + -Vin-）耦合到输入放大器电路（46）的输入（41A，B）。 输入放大器电路（46）的输出（64A，B）由输出放大器（50）放大。

公开(公告)号：US20100007217A1

公开(公告)日：2010-01-14

申请号：US12218281

申请日：2008-07-14

申请人： Gerald W. Steele ,  Tony R. Larson

发明人： Gerald W. Steele ,  Tony R. Larson

IPC分类号： H01H35/00

CPC分类号： H02J1/102 ,  Y10T307/74 ,  Y10T307/865 ,  Y10T307/937

摘要： A hot swap controller includes a shunt resistor (32-1,2) and a power transistor (37-1,2) having a source coupled to a load maintains the first power transistor in a fully-turned-on condition to cause it to deliver a load current contribution (I1,2) which flows through the shunt resistor and the power transistor to the load (25). Current sensing circuitry (35-1,2) produces a first control signal (V45-1,2-V47-1,2) equal to the difference between a DC component (V47-1) proportional to a first load current contribution (IL1) flowing in the first shunt resistor and a feedback-based component (V45-1). A control amplifier (49-1,2) produces a second control signal (V51-1,2) in response to the first control signal to modify a drive signal (53-1) to the power transistor so as to reduce a channel resistance of the power transistor if the first control signal exceeds a predetermined level.

摘要翻译： 热插拔控制器包括分流电阻器（32-1,2）和具有耦合到负载的源极的功率晶体管（37-1,2），其将第一功率晶体管保持在完全导通状态，以使其成为 提供流过分流电阻器和功率晶体管到负载（25）的负载电流贡献（I1,2）。 电流感测电路（35-1,2）产生等于与第一负载电流贡献（IL1）成比例的DC分量（V47-1）之间的差的第一控制信号（V45-1,2-V47-1,2） ）在第一分流电阻器和基于反馈的组件（V45-1）中流动。 控制放大器（49-1,2）响应于第一控制信号产生第二控制信号（V51-1,2），以将功率晶体管的驱动信号（53-1）修改为减小通道电阻 的功率晶体管，如果第一控制信号超过预定电平。