公开(公告)号：US20040130307A1

公开(公告)日：2004-07-08

申请号：US10725764

申请日：2003-12-02

Applicant: Intersil Americas Inc. State of Incorporation: Delaware

Inventor： Noel Dequina ,  Donald R. Preslar ,  Paul K. Sferrazza

IPC: G05F001/40

CPC classification number: H02M1/38 ,  H02M3/1588 ,  Y02B70/1466

Abstract: A control circuit for a switch mode DC-DC converter contains an arrangement of monitored LGATE, UGATE and PHASE node condition threshold detectors, outputs of which are processed in accordance with a switching control operator to ensure that each of an upper FET (UFET) and a lower FET (LFET) is completely turned off before the other FET begins conduction, thereby maintaining a dead time that exhibits no shoot-through current and is independent of the type of switching FET.

Abstract translation: 用于开关模式DC-DC转换器的控制电路包含监视的LGATE，UGATE和PHASE节点状态阈值检测器的布置，其输出根据切换控制算子进行处理，以确保上FET（UFET）和 在另一个FET开始导通之前，下部FET（LFET）完全关闭，从而保持不存在直通电流的死区时间，并且不依赖于开关FET的类型。

公开(公告)号：US20030201761A1

公开(公告)日：2003-10-30

申请号：US10357924

申请日：2003-02-04

Applicant: Intersil Americas Inc., State of Incorporation: Delaware

Inventor： Matthew B. Harris

IPC: G05F001/40

CPC classification number: H02J1/102 ,  H02M3/1584

Abstract: A multi-phase DC-DC converter architecture in which parameters including error signal gains and modulator gains are defined so as to balance multiple converter channel currents, irrespective of whether the converter channels are supplied with the same or different input voltages.

Abstract translation: 定义了包括误差信号增益和调制器增益的参数以便平衡多个转换器通道电流的多相DC-DC转换器架构，而不管转换器通道是否具有相同或不同的输入电压。

公开(公告)号：US20040228152A1

公开(公告)日：2004-11-18

申请号：US10765385

申请日：2004-01-27

Applicant: Intersil Americas Inc., State of Incorporation: Delaware

Inventor： Eric Magne Solie

IPC: H02M001/00

CPC classification number: H02M1/36 ,  H02M2001/0025

Abstract: A soft start circuit for a DC-DC converter has an input reference voltage coupled to an error amplifier and to a soft start capacitor. A feedback resistor is coupled between an output node and the error amplifier, whose output is coupled to a pulse width modulator (PWM). The PWM output is coupled through an inductor to the output node, to which an output capacitor referenced to ground is coupled. Means is provided to charge up the soft start capacitor to the output voltage while the converter is disabled. As a result, when enabled, the converter will not discharge the output capacitor, but will ramp the output voltage to the voltage Vref without excessive currents.

Abstract translation: 用于DC-DC转换器的软启动电路具有耦合到误差放大器和软启动电容器的输入参考电压。 反馈电阻耦合在输出节点和误差放大器之间，其输出耦合到脉宽调制器（PWM）。 PWM输出通过电感器耦合到输出节点，与地面相关的输出电容耦合到输出节点。 提供了在转换器禁用时将软启动电容充电到输出电压的手段。 因此，当使能时，转换器不会对输出电容器放电，但会将输出电压斜坡上升到电压Vref，而不会有过大的电流。