公开(公告)号：US07592787B2

公开(公告)日：2009-09-22

申请号：US11694308

申请日：2007-03-30

申请人： Weihong Qui ,  Shangyang Xiao ,  Robert H. Isham

发明人： Weihong Qui ,  Shangyang Xiao ,  Robert H. Isham

IPC分类号： G05F1/59 ,  G05F1/565

CPC分类号： H02M3/1584 ,  H02M3/285

摘要： A pulse width modulation (PWM) modulator for a multiphase power converter and related adaptive firing order (AFO) method includes a multiphase leading edge generator having pulse generating circuitry associated with each of the regulator phases, wherein the pulse generating circuitry generates phase pulses associated with each of the phases. An adaptive firing order (AFO) controller having circuitry including a mixer receives and sums the phase pulses into a summing signal and uses the summing signal to generate a series of turn-on pulses therefrom. A multiphase PWM generator has inputs coupled to an output of the AFO controller coupled to receive the series of turn-on pulses, the multiphase PWM generator having circuitry for generating said PWM signals therefrom. An adaptive firing order (AFO) controlled multi-phase power converter includes a plurality of parallel connected regulator phases controlled by respective pulse width modulation (PWM) signals provided by the PWM modulator.

摘要翻译： 用于多相功率转换器的脉宽调制（PWM）调制器和相关的自适应点火顺序（AFO）方法包括具有与每个调节器相位相关联的脉冲发生电路的多相前沿发生器，其中脉冲发生电路产生与 每个阶段。 具有包括混合器的电路的自适应点火顺序（AFO）控制器接收并将相位脉冲求和到求和信号中，并且使用求和信号从其产生一系列导通脉冲。 多相PWM发生器具有耦合到耦合以接收一系列导通脉冲的AFO控制器的输出的输入，所述多相PWM发生器具有用于从其产生所述PWM信号的电路。 自适应点火顺序（AFO）控制的多相功率转换器包括由PWM调制器提供的相应的脉冲宽度调制（PWM）信号控制的多个并联的调节器相位。

公开(公告)号：USRE38906E1

公开(公告)日：2005-12-06

申请号：US10045169

申请日：2002-01-11

申请人： Charles E. Hawkes ,  Michael M. Walters ,  Robert H. Isham

发明人： Charles E. Hawkes ,  Michael M. Walters ,  Robert H. Isham

IPC分类号： G05F1/565 ,  G05F1/00 ,  G06F1/26 ,  H02M3/00 ,  H02M3/156 ,  G05F1/56

CPC分类号： H02M3/156 ,  H02M2001/0019

摘要： A DC/DC converter has an output voltage and sources an output current to a load. The DC/DC converter includes an error amplifier with a reference input and a summing input. The reference input is electrically connected to a reference voltage. The summing input is electrically connected to the output voltage and the output current. The summing input is configured for adding together the output voltage and the output current. The error amplifier issues an error signal and adjusts the error signal dependent at least in part upon the output voltage and the output current. A comparator receives the error signal. The comparator has a ramp input electrically connected to a voltage ramp signal. The comparator issues an output signal that is based at least in part upon said error input. A power switch has an on condition and an off condition, and supplies dc current to the load when in the on condition. The power switch has a control input electrically connected to the comparator output signal. The power switch is responsive to the control input to change between the on condition and the off condition to thereby adjust the output current of the DC/DC converter.

公开(公告)号：US06687105B2

公开(公告)日：2004-02-03

申请号：US10219556

申请日：2002-08-15

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

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

IPC分类号： H02H700

CPC分类号： H02M3/156

摘要： 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.

摘要翻译： 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：US4471243A

公开(公告)日：1984-09-11

申请号：US401625

申请日：1982-07-26

申请人： Robert H. Isham

发明人： Robert H. Isham

IPC分类号： H04L25/26 ,  H03K17/693 ,  H03K19/094

CPC分类号： H04L25/26

摘要： A bidirectional interface circuit whose signal terminals can function as either input or output terminals whereby the interface circuit can couple signals from a microprocessor to a load module or from a source module to the microprocessor.

摘要翻译： 双向接口电路，其信号端子可以用作输入或输出端子，由此接口电路可以将来自微处理器的信号耦合到负载模块或从源模块耦合到微处理器。

公开(公告)号：US4267527A

公开(公告)日：1981-05-12

申请号：US38210

申请日：1979-05-11

申请人： Cesare J. Petrizio ,  Robert H. Isham

发明人： Cesare J. Petrizio ,  Robert H. Isham

IPC分类号： H03K3/352 ,  H03K3/35

CPC分类号： H03K3/352

摘要： Power consumption is substantially reduced and constant frequency is substantially derived without regulating the supply voltage for an oscillator circuit of the type wherein a capacitor is recurrently charged to a threshold voltage from the supply voltage and is then discharged through a gate turn-off (GTO) device. A reference voltage level proportional to the supply voltage is applied at the control electrode of the GTO device and positive current is applied at that control electrode when the differential between the charge voltage level and the reference voltage level reaches a positive trigger level, while negative current is applied thereat when that differential reaches a negative trigger level.

摘要翻译： 功率消耗被大大降低，并且在不调节电容器从电源电压再次充电到阈值电压的类型的振荡器电路的电源电压的基础上实质地得到恒定频率，然后通过门极关断（GTO）放电， 设备。 在GTO装置的控制电极处施加与电源电压成比例的参考电压电平，当充电电压电平和参考电压电平之间的差达到正触发电平时，在该控制电极处施加正电流，而负电流 当该差分达到负触发电平时被应用。