公开(公告)号：US20040178779A1

公开(公告)日：2004-09-16

申请号：US10806605

申请日：2004-03-23

Applicant: INTERSIL AMERICAS INC.

Inventor： Michael M. Walters ,  Matthew B. Harris ,  Bogdan M. Duduman

IPC: H02M003/24

CPC classification number: H02M3/1588 ,  H02M3/156 ,  H02M3/1584 ,  H02M3/285 ,  H02M2001/0009 ,  Y02B70/1466

Abstract: A DC-to-DC converter includes one or more power switches, a pulse width modulation circuit for generating control pulses for the power switches, and an output inductor connected to the power switches. A thermally compensated current sensor is connected to an intrinsic current sensing element exhibiting a temperature-based parameter non-linearity. The thermally compensated current sensor has a temperature coefficient that substantially matches a temperature coefficient of an intrinsic power converter element used to measure current flow, thus linearizing the current measurement. Also, a current feedback loop circuit cooperates with the pulse width modulation circuit to control the power switches responsive to the thermally compensated current sensor.

公开(公告)号：US20030039127A1

公开(公告)日：2003-02-27

申请号：US10219556

申请日：2002-08-15

Applicant: Intersil Americas Inc.

Inventor： Bogdan M. Duduman ,  Matthew B. Harris ,  Robert H. Isham

IPC: H02M003/335

CPC classification number: H02M3/156

Abstract: The integrated control circuit is for an electronic circuit, such as a DC-to-DC converter, using current sense information developed across an intrinsic circuit element of the electronic circuit. The integrated control circuit includes a temperature sensor to sense a temperature rise induced by the intrinsic circuit element of the electronic circuit. The temperature error signal and a feedback signal from the intrinsic circuit element of the converter are combined to provide a temperature-corrected feedback signal to a control unit for the converter.

Abstract translation: 集成控制电路用于电子电路，例如DC-DC转换器，其使用在电子电路的本征电路元件上产生的电流感测信息。 集成控制电路包括用于感测由电子电路的本征电路元件引起的温度升高的温度传感器。 组合温度误差信号和来自转换器的本征电路元件的反馈信号，以向转换器的控制单元提供经温度校正的反馈信号。

公开(公告)号：US20040217744A1

公开(公告)日：2004-11-04

申请号：US10858586

申请日：2004-06-02

Applicant: INTERSIL AMERICAS INC.

Inventor： Michael M. Walters ,  Matthew B. Harris ,  Bogdan M. Duduman

IPC: H02M001/00

CPC classification number: H02M3/1588 ,  H02M3/156 ,  H02M3/1584 ,  H02M3/285 ,  H02M2001/0009 ,  Y02B70/1466

Abstract: A DC-to-DC converter includes one or more power switches, a pulse width modulation circuit for generating control pulses for the power switches, and an output inductor connected to the power switches. A thermally compensated current sensor is connected to an intrinsic current sensing element exhibiting a temperature-based parameter non-linearity. The thermally compensated current sensor has a temperature coefficient that substantially matches a temperature coefficient of an intrinsic power converter element used to measure current flow, thus linearizing the current measurement. Also, a current feedback loop circuit cooperates with the pulse width modulation circuit to control the power switches responsive to the thermally compensated current sensor.

公开(公告)号：US20030038614A1

公开(公告)日：2003-02-27

申请号：US10219555

申请日：2002-08-15

Applicant: Intersil Americas Inc.

Inventor： Michael M. Walters ,  Matthew B. Harris ,  Bogdan M. Duduman

IPC: G05F001/40

CPC classification number: H02M3/1588 ,  H02M3/156 ,  H02M3/1584 ,  H02M3/285 ,  H02M2001/0009 ,  Y02B70/1466

Abstract: A DC-to-DC converter includes one or more power switches, a pulse width modulation circuit for generating control pulses for the power switches, and an output inductor connected to the power switches. A thermally compensated current sensor is connected to an intrinsic current sensing element exhibiting a temperature-based parameter non-linearity. The thermally compensated current sensor has a temperature coefficient that substantially matches a temperature coefficient of an intrinsic power converter element used to measure current flow, thus linearizing the current measurement. Also, a current feedback loop circuit cooperates with the pulse width modulation circuit to control the power switches responsive to the thermally compensated current sensor.

Abstract translation: DC-DC转换器包括一个或多个电源开关，用于产生功率开关的控制脉冲的脉冲宽度调制电路和连接到电源开关的输出电感器。 热补偿电流传感器连接到呈现基于温度的参数非线性的本征电流感测元件。 热补偿电流传感器具有与用于测量电流的本征功率转换器元件的温度系数基本匹配的温度系数，从而线性化电流测量。 此外，电流反馈回路电路与脉宽调制电路配合，以响应于热补偿电流传感器来控制功率开关。