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1. 发明申请

US20070247774A1 NOISE IMMUNE OVER CURRENT PROTECTION WITH INHERENT CURRENT LIMITING FOR SWITCHING POWER CONVERTER 有权
标题翻译：通过电流转换器开关电流限制的噪声免疫
公开(公告)号：US20070247774A1
公开(公告)日：2007-10-25
申请号：US11736679
申请日：2007-04-18
申请人： Xiao-chang Cheng , Jun Honda , Gabriele Bernardinis
发明人： Xiao-chang Cheng , Jun Honda , Gabriele Bernardinis
IPC分类号： H02H3/08
CPC分类号： H02H1/04
摘要： A circuit for providing over-current protection, the circuit including a gate driver circuit for controlling a bridge circuit including a half bridge stage having high and low switches. The circuit includes a feedback loop circuit for counting over-current indicators sensed during one or more consecutive PWM cycles; wherein when an over-current indicator is sensed, the low switch is turned OFF for duration of a first time period after which the low switch is turned back ON, to enable determination of an over-current condition where false noise signals are rejected thereby preventing circuit shutdowns due to false over-current condition.
摘要翻译：一种用于提供过电流保护的电路，所述电路包括用于控制包括具有高和低开关的半桥级的桥式电路的栅极驱动电路。电路包括用于对在一个或多个连续PWM周期期间感测到的过电流指示进行计数的反馈回路电路; 其中，当检测到过电流指示器时，低电平开关在第一时间段的持续时间内被关闭，在此之后低开关被重新接通，以便能够确定错误噪声信号被拒绝的过电流状态，从而防止由于过电流故障导致电路关断。

2. 发明授权

US07636227B2 Noise immune over current protection with inherent current limiting for switching power converter 有权
标题翻译：用于开关电源转换器的固有电流限制的免疫过电流保护
公开(公告)号：US07636227B2
公开(公告)日：2009-12-22
申请号：US11736679
申请日：2007-04-18
申请人： Xiao-chang Cheng , Jun Honda , Gabriele Bernardinis
发明人： Xiao-chang Cheng , Jun Honda , Gabriele Bernardinis
IPC分类号： H02H9/08
CPC分类号： H02H1/04
摘要： A circuit for providing over-current protection, the circuit including a gate driver circuit for controlling a bridge circuit including a half bridge stage having high and low switches. The circuit includes a feedback loop circuit for counting over-current indicators sensed during one or more consecutive PWM cycles; wherein when an over-current indicator is sensed, the low switch is turned OFF for duration of a first time period after which the low switch is turned back ON, to enable determination of an over-current condition where false noise signals are rejected thereby preventing circuit shutdowns due to false over-current condition.
摘要翻译：一种用于提供过电流保护的电路，所述电路包括用于控制包括具有高和低开关的半桥级的桥式电路的栅极驱动电路。电路包括用于对在一个或多个连续PWM周期期间感测到的过电流指示进行计数的反馈回路电路; 其中，当检测到过电流指示器时，低电平开关在第一时间段的持续时间内被关闭，在此之后低开关被重新接通，以便能够确定错误噪声信号被拒绝的过电流状态，从而防止由于过电流故障导致电路关断。

3. 发明授权

US08022682B2 Method to reduce inrush voltage and current in a switching power converter 有权
标题翻译：降低开关电源转换器浪涌电压和电流的方法
公开(公告)号：US08022682B2
公开(公告)日：2011-09-20
申请号：US11741070
申请日：2007-04-27
申请人： Jun Honda , Xiao-chang Cheng
发明人： Jun Honda , Xiao-chang Cheng
IPC分类号： G05F1/00
CPC分类号： H02M1/36 , H02M3/156 , Y10S323/901 , Y10S323/908
摘要： A circuit for minimizing voltage inrush upon startup in a switching power converter having a switching stage including high and low switches connected at a common node, a feedback loop for maintaining a target output voltage, an output capacitor connected between an output node and the ground, an inductor connected between the common node and the output node, and a control circuit having a first error amplifier for providing a first signal based on a comparison of a reference voltage and voltage provided by the feedback loop, the control circuit including a level switch connected between the ground and the common node, the level switch being controlled in accordance with the first signal, wherein a large inrush current flowing into the output capacitor when the circuit is starting up is minimized.
摘要翻译：一种用于在具有包括连接在公共节点上的高低开关的开关级的开关电源转换器中启动时的电压最小化的电路，用于维持目标输出电压的反馈回路，连接在输出节点和地之间的输出电容器，连接在所述公共节点和所述输出节点之间的电感器，以及控制电路，具有第一误差放大器，用于基于由所述反馈回路提供的参考电压和电压的比较来提供第一信号，所述控制电路包括连接的电平开关在接地和公共节点之间，根据第一信号控制电平开关，其中当电路启动时流入输出电容器的大的涌入电流被最小化。

4. 发明申请

US20070252566A1 METHOD TO REDUCE INRUSH VOLTAGE AND CURRENT IN A SWITCHING POWER CONVERTER 有权
标题翻译：降低开关电源转换器中的电压和电流的方法
公开(公告)号：US20070252566A1
公开(公告)日：2007-11-01
申请号：US11741070
申请日：2007-04-27
申请人： Jun Honda , Xiao-chang Cheng
发明人： Jun Honda , Xiao-chang Cheng
IPC分类号： G05F1/00
CPC分类号： H02M1/36 , H02M3/156 , Y10S323/901 , Y10S323/908
摘要： A circuit for minimizing voltage inrush upon startup in a switching power converter having a switching stage including high and low switches connected at a common node, a feedback loop for maintaining a target output voltage, an output capacitor connected between an output node and the ground, an inductor connected between the common node and the output node, and a control circuit having a first error amplifier for providing a first signal based on a comparison of a reference voltage and voltage provided by the feedback loop, the control circuit including a level switch connected between the ground and the common node, the level switch being controlled in accordance with the first signal, wherein a large inrush current flowing into the output capacitor when the circuit is starting up is minimized.
摘要翻译：一种用于在具有包括连接在公共节点上的高低开关的开关级的开关电源转换器中启动时的电压最小化的电路，用于维持目标输出电压的反馈回路，连接在输出节点和地之间的输出电容器，连接在所述公共节点和所述输出节点之间的电感器，以及控制电路，具有第一误差放大器，用于基于由所述反馈回路提供的参考电压和电压的比较来提供第一信号，所述控制电路包括连接的电平开关在接地和公共节点之间，根据第一信号控制电平开关，其中当电路启动时流入输出电容器的大的涌入电流被最小化。

5. 发明申请

US20050151568A1 Gate driver with level shift between static wells with no power supply 有权
标题翻译：门驱动器，静电井之间的电平转换，无电源
公开(公告)号：US20050151568A1
公开(公告)日：2005-07-14
申请号：US11013973
申请日：2004-12-16
申请人： Jun Honda , Xiao-chang Cheng
发明人： Jun Honda , Xiao-chang Cheng
IPC分类号： H03K19/0175 , H03B1/00 , H03F3/213 , H03F3/217 , H03K17/00 , H03K17/16 , H03K17/687
CPC分类号： H03F3/2171 , H03K17/16 , H03K17/6871
摘要： A control terminal driver IC for a switching circuit having series connected high and low side output transistors, an associated split power supply and a floating input, the gate drive IC, an exemplary, but non-limiting, example of which is a Class D audio amplifier. The IC includes an input circuit, a voltage to current converter connected to the input circuit, a level shifter formed in a mid well of the IC, which is operative to transfer the input signal to the low side without the need for a power supply input to the mid well, a current to voltage converter on the low side coupled to the level shifter; and an output circuit which is operative to generate control terminal drive signals for the high and low side transistors.
摘要翻译：具有串联连接的高低侧输出晶体管的开关电路的控制端子驱动器IC，相关联的分离电源和浮动输入，栅极驱动IC，其示例性但非限制性示例是D类音频放大器 IC包括输入电路，连接到输入电路的电压到电流转换器，形成在IC的中间阱中的电平转换器，其可操作以将输入信号传送到低侧而不需要电源输入在中间阱中，耦合到电平移位器的低压侧的电流至电压转换器; 以及输出电路，其用于产生用于高侧和低侧晶体管的控制端驱动信号。

6. 发明授权

US07528651B2 Noise free implementation of PWM modulator combined with gate driver stage in a single die 有权
标题翻译：在单个芯片中与PWM驱动器结合门驱动器级的无噪声实现
公开(公告)号：US07528651B2
公开(公告)日：2009-05-05
申请号：US11744960
申请日：2007-05-07
申请人： Jun Honda , Xiao-chang Cheng
发明人： Jun Honda , Xiao-chang Cheng
IPC分类号： H03F3/38
CPC分类号： H03F3/217 , H03F1/26 , H03F2200/03 , H03F2200/351 , H03F2200/372
摘要： An integrated noise isolation circuit on a single silicon substrate die having a structural arrangement that minimizes noise. The integrated circuit including a noise sensitive circuit including an input stage; a noise generating circuit including an output stage; at least one high voltage level shift circuit coupling the noise generating and noise sensitive circuits for transferring a signal from the input to the output stage; and at least one floating structure for isolating influence of the noise.
摘要翻译：在单个硅衬底管芯上的集成噪声隔离电路，具有使噪声最小化的结构布置。所述集成电路包括包括输入级的噪声敏感电路; 包括输出级的噪声产生电路; 耦合所述噪声产生和噪声敏感电路的至少一个高电压电平移位电路，用于将信号从所述输入传送到所述输出级; 以及用于隔离噪声影响的至少一个浮动结构。

7. 发明授权

US07116136B2 Gate driver with level shift between static wells with no power supply 有权
标题翻译：门驱动器，静电井之间的电平转换，无电源
公开(公告)号：US07116136B2
公开(公告)日：2006-10-03
申请号：US11013973
申请日：2004-12-16
申请人： Jun Honda , Xiao-chang Cheng
发明人： Jun Honda , Xiao-chang Cheng
IPC分类号： H03B1/00 , H03L5/00
CPC分类号： H03F3/2171 , H03K17/16 , H03K17/6871
摘要： A control terminal driver IC for a switching circuit having series connected high and low side output transistors, an associated split power supply and a floating input, the gate drive IC, an exemplary, but non-limiting, example of which is a Class D audio amplifier. The IC includes an input circuit, a voltage to current converter connected to the input circuit, a level shifter formed in a mid well of the IC, which is operative to transfer the input signal to the low side without the need for a power supply input to the mid well, a current to voltage converter on the low side coupled to the level shifter; and an output circuit which is operative to generate control terminal drive signals for the high and low side transistors.
摘要翻译：具有串联连接的高低侧输出晶体管的开关电路的控制端子驱动器IC，相关联的分离电源和浮动输入，栅极驱动IC，其示例性但非限制性示例是D类音频放大器 IC包括输入电路，连接到输入电路的电压到电流转换器，形成在IC的中间阱中的电平转换器，其可操作以将输入信号传送到低侧而不需要电源输入在中间阱中，耦合到电平移位器的低压侧的电流至电压转换器; 以及输出电路，其用于产生用于高侧和低侧晶体管的控制端驱动信号。

8. 发明申请

US20070258180A1 NOISE FREE IMPLEMENTATION OF PWM MODULATOR COMBINED WITH GATE DRIVER STAGE IN A SINGLE DIE 有权
标题翻译：在单个DIE中与门控驱动器组合的PWM调节器的无噪声实现
公开(公告)号：US20070258180A1
公开(公告)日：2007-11-08
申请号：US11744960
申请日：2007-05-07
申请人： Jun Honda , Xiao-chang Cheng
发明人： Jun Honda , Xiao-chang Cheng
IPC分类号： H01H47/00
CPC分类号： H03F3/217 , H03F1/26 , H03F2200/03 , H03F2200/351 , H03F2200/372
摘要： An integrated noise isolation circuit on a single silicon substrate die having a structural arrangement that minimizes noise. The integrated circuit including a noise sensitive circuit including an input stage; a noise generating circuit including an output stage; at least one high voltage level shift circuit coupling the noise generating and noise sensitive circuits for transferring a signal from the input to the output stage; and at least one floating structure for isolating influence of the noise.
摘要翻译：在单个硅衬底管芯上的集成噪声隔离电路，具有使噪声最小化的结构布置。所述集成电路包括包括输入级的噪声敏感电路; 包括输出级的噪声产生电路; 耦合所述噪声产生和噪声敏感电路的至少一个高电压电平移位电路，用于将信号从所述输入传送到所述输出级; 以及用于隔离噪声影响的至少一个浮动结构。

9. 发明授权

US06998911B2 Gate control circuit with soft start/stop function 有权
标题翻译：门控电路具有软启动/停止功能
公开(公告)号：US06998911B2
公开(公告)日：2006-02-14
申请号：US11016632
申请日：2004-12-17
申请人： Jun Honda , Xiao-chang Cheng
发明人： Jun Honda , Xiao-chang Cheng
IPC分类号： H03F3/38
CPC分类号： H03F3/2173 , H03F1/305 , H03F3/2171 , H03F2200/03 , H03F2200/321 , H03F2200/351 , H03F2200/372 , H03F2200/375 , H03K17/166 , H03K17/6874
摘要： A control terminal driver circuit for a switching amplifier including a driver for each of a pair of output power transistors responsive to a PWM information signal. The circuit operates in response to an operating state signal indicating a start up condition for the amplifier to vary the amplitude of the drive pulses for the output transistors between a zero value and a maximum value for normal operation of the amplifier over a start up interval, and to reverse the process during a shut down interval. A DC offset detector is provided to detect a DC offset at amplifier output, and an error circuit responsive to an output of the DC offset detector controls the relative amplitude of the driver outputs during at least a portion of the start up interval to substantially eliminate the DC offset. Also disclosed is a switching amplifier including a control terminal driver circuit as described above.
摘要翻译：一种用于开关放大器的控制端子驱动器电路，其包括响应于PWM信息信号的一对输出功率晶体管中的每一个的驱动器。电路响应于指示放大器的启动条件的操作状态信号而工作，以在放大器的起始间隔之间改变放大器的正常工作的零值和最大值之间的输出晶体管的驱动脉冲的幅度，并在关闭间隔期间逆转进程。提供DC偏移检测器以检测放大器输出端的DC偏移，并且响应于DC偏移检测器的输出的误差电路在至少启动间隔的一部分期间控制驱动器输出的相对幅度，以基本上消除直流偏移。还公开了包括如上所述的控制端子驱动电路的开关放大器。

10. 发明申请

US20050151585A1 Gate control circuit with soft start/stop function 有权
标题翻译：门控电路具有软启动/停止功能
公开(公告)号：US20050151585A1
公开(公告)日：2005-07-14
申请号：US11016632
申请日：2004-12-17
申请人： Jun Honda , Xiao-chang Cheng
发明人： Jun Honda , Xiao-chang Cheng
IPC分类号： H03F1/30 , H03F3/217 , H03F3/38 , H03K17/16 , H03K17/687
CPC分类号： H03F3/2173 , H03F1/305 , H03F3/2171 , H03F2200/03 , H03F2200/321 , H03F2200/351 , H03F2200/372 , H03F2200/375 , H03K17/166 , H03K17/6874
摘要： A control terminal driver circuit for a switching amplifier including a driver for each of a pair of output power transistors responsive to a PWM information signal. The circuit operates in response to an operating state signal indicating a start up condition for the amplifier to vary the amplitude of the drive pulses for the output transistors between a zero value and a maximum value for normal operation of the amplifier over a start up interval, and to reverse the process during a shut down interval. A DC offset detector is provided to detect a DC offset at amplifier output, and an error circuit responsive to an output of the DC offset detector controls the relative amplitude of the driver outputs during at least a portion of the start up interval to substantially eliminate the DC offset. Also disclosed is a switching amplifier including a control terminal driver circuit as described above.
摘要翻译：一种用于开关放大器的控制端子驱动器电路，其包括响应于PWM信息信号的一对输出功率晶体管中的每一个的驱动器。电路响应于指示放大器的启动条件的操作状态信号而工作，以在放大器的起始间隔之间改变放大器的正常工作的零值和最大值之间的输出晶体管的驱动脉冲的幅度，并在关闭间隔期间逆转进程。提供DC偏移检测器以检测放大器输出端的DC偏移，并且响应于DC偏移检测器的输出的误差电路在至少启动间隔的一部分期间控制驱动器输出的相对幅度，以基本上消除直流偏移。还公开了包括如上所述的控制端子驱动电路的开关放大器。

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