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1. 发明申请

US20100253396A1 APPARATUS AND METHOD FOR CONTROLLING A COMMON-MODE VOLTAGE OF SWITCHING AMPLIFIERS 有权
标题翻译：用于控制开关放大器的共模电压的装置和方法
公开(公告)号：US20100253396A1
公开(公告)日：2010-10-07
申请号：US12818039
申请日：2010-06-17
申请人： Atsushi Matamura
发明人： Atsushi Matamura
IPC分类号： H03K3/01
CPC分类号： H03F3/2173
摘要： The present invention relates to an H-bridge controller and method for controlling a common-mode voltage and/or current of an H-bridge circuit. The H-bridge controller comprises a section for receiving a signal indicating at least one of a common-mode voltage and common-mode current of the H-bridge circuit, and a section for generating control signals which determine switching of the H-bridge circuit so as to control at least one of the common-mode voltage and common-mode current of the H-bridge circuit.The present invention also relates to a system and method for controlling a common-mode voltage and/or current of an H-bridge circuit, the system comprising a modulator for receiving an input signal, modulating the received input signal, and generating a digital signal, an H-bridge controller for receiving the digital signal and generating control signals for controlling operation of the H-bridge circuit, an H-bridge circuit for receiving the control signals and operating based on the received control signals so as to output an analog signal to a load, and a common-mode error determination circuit for generating an error signal indicating at least one of an error of a common-mode voltage and an error of a common-mode current of the H-bridge circuit, wherein the H-bridge controller receives the error signal and generates the control signals based on the received digital signal and the received error signal so as to reduce variations in at least one of an average of the common-mode voltage and an average of the common-mode current of the H-bridge circuit.
摘要翻译：本发明涉及用于控制H桥电路的共模电压和/或电流的H桥控制器和方法。 H桥控制器包括用于接收指示H桥电路的共模电压和共模电流中的至少一个的信号的部分，以及用于产生确定H桥电路的切换的控制信号的部分以便控制H桥电路的共模电压和共模电流中的至少一个。本发明还涉及一种用于控制H桥电路的共模电压和/或电流的系统和方法，所述系统和方法包括用于接收输入信号的调制器，调制所接收的输入信号并产生数字信号用于接收数字信号并产生用于控制H桥电路的操作的控制信号的H桥控制器，用于接收控制信号并基于所接收的控制信号进行操作以便输出模拟信号的H桥电路以及共模误差确定电路，用于产生指示共模电压的误差和H桥电路的共模电流的误差中的至少一个的误差信号，其中H- 桥接控制器接收误差信号并基于接收到的数字信号和接收到的误差信号产生控制信号，以便减少共模电压的平均值中的至少一个的变化和H桥电路的共模电流的平均值。

2. 发明申请

US20060139193A1 Continuous-time-sigma-delta DAC using chopper stabalisation 有权
标题翻译：使用斩波稳定的连续时间 - Σ-ΔDAC
公开(公告)号：US20060139193A1
公开(公告)日：2006-06-29
申请号：US11228114
申请日：2005-09-16
申请人： Paul Morrow , Maria Chamarro Marti , Colin Lyden , Mike Keane , Robert Adams , Richard O'Brien , Paschal Minogue , Hans Mansson , Atsushi Matamura , Andrew Abo
发明人： Paul Morrow , Maria Chamarro Marti , Colin Lyden , Mike Keane , Robert Adams , Richard O'Brien , Paschal Minogue , Hans Mansson , Atsushi Matamura , Andrew Abo
IPC分类号： H03M3/00
CPC分类号： H03M3/34 , H03M3/502
摘要： A sigma-delta digital-to-analog converter comprises a current digital-to-analog converter (IDAC) stage which generates a current depending on an input digital signal. An output current-to-voltage converter converts the generated signal to a voltage on a continuous-time basis. The amplifier used in the output current-to-voltage converter is chopper-stabilized. The converter can be single bit or multi-bit. The IDAC stage can be implemented with a pair of branches, a first branch comprising a first biasing current source and a second branch comprising a second biasing current source. The biasing current sources can be chopper-stabilized by connecting the bias current sources to the output current-to-voltage converter by a set of switches. The switches connect the biasing current sources to the output current-to-voltage converter in a first configuration and a second, reversed, configuration. This modulates flicker noise contributed by the bias current sources to the chopping frequency. from where it can be removed by filtering downstream of the current-to-voltage converter.
摘要翻译： Σ-Δ数模转换器包括根据输入数字信号产生电流的当前数模转换器（IDAC）级。输出电流 - 电压转换器将生成的信号连续地转换成电压。在输出电流 - 电压转换器中使用的放大器是斩波稳定的。转换器可以是单位或多位。 IDAC级可以用一对分支来实现，第一分支包括第一偏置电流源和包括第二偏置电流源的第二分支。通过一组开关将偏置电流源连接到输出电流 - 电压转换器，可以对偏置电流源进行斩波稳定。开关将偏置电流源以第一配置和第二反向配置连接到输出电流 - 电压转换器。这将调制由偏置电流源提供的闪烁噪声到斩波频率。从那里可以通过对电流 - 电压转换器的下游进行滤波来去除。

3. 发明申请

US20110080678A1 ESD PROTECTION CIRCUIT FOR A SWITCHING POWER CONVERTER 有权
标题翻译：用于开关电源转换器的ESD保护电路
公开(公告)号：US20110080678A1
公开(公告)日：2011-04-07
申请号：US12573501
申请日：2009-10-05
申请人： JAMES W. ZHAO , REED W. ADAMS , KENJI TOMIYOSHI , BIN SHAO , ATSUSHI MATAMURA , YOGESH SHARMA , TODD THOMAS
发明人： JAMES W. ZHAO , REED W. ADAMS , KENJI TOMIYOSHI , BIN SHAO , ATSUSHI MATAMURA , YOGESH SHARMA , TODD THOMAS
IPC分类号： H02H9/04 , H01L23/60
CPC分类号： H01L27/0285 , H01L2924/0002 , H01L2924/00
摘要： An ESD protection circuit for a switching power converter which includes a high-side switching element connected between a supply voltage and the switching node, and a low-side switching element connected between the switching node and a common node. A current conduction path couples an ESD event that occurs on the switching node to an ESD sense node, and an ESD sensing circuit coupled to the sense node generates a trigger signal when an ESD event is sensed. A first logic gate keeps the high-side switching element off when the trigger signal indicates the sensing of an ESD event, and a second logic gate causes the low-side switching element to turn on when an ESD event is sensed such that the low-side switching element provides a conductive discharge path between the switching node and common node.
摘要翻译：一种用于开关电源转换器的ESD保护电路，包括连接在电源电压和开关节点之间的高侧开关元件，以及连接在开关节点和公共节点之间的低侧开关元件。电流传导路径将在开关节点上发生的ESD事件耦合到ESD感测节点，并且耦合到感测节点的ESD感测电路在感测到ESD事件时产生触发信号。当触发信号指示ESD事件的感测时，第一逻辑门保持高侧开关元件关闭，并且当检测到ESD事件时，第二逻辑门使低侧开关元件导通，侧开关元件在开关节点和公共节点之间提供导电放电路径。

4. 发明授权

US08345394B2 ESD protection circuit for a switching power converter 有权
标题翻译：用于开关电源转换器的ESD保护电路
公开(公告)号：US08345394B2
公开(公告)日：2013-01-01
申请号：US12573501
申请日：2009-10-05
申请人： James W. Zhao , Reed W. Adams , Kenji Tomiyoshi , Bin Shao , Atsushi Matamura , Yogesh Sharma , Todd Thomas
发明人： James W. Zhao , Reed W. Adams , Kenji Tomiyoshi , Bin Shao , Atsushi Matamura , Yogesh Sharma , Todd Thomas
IPC分类号： H02H9/00
CPC分类号： H01L27/0285 , H01L2924/0002 , H01L2924/00
摘要： An ESD protection circuit for a switching power converter which includes a high-side switching element connected between a supply voltage and the switching node, and a low-side switching element connected between the switching node and a common node. A current conduction path couples an ESD event that occurs on the switching node to an ESD sense node, and an ESD sensing circuit coupled to the sense node generates a trigger signal when an ESD event is sensed. A first logic gate keeps the high-side switching element off when the trigger signal indicates the sensing of an ESD event, and a second logic gate causes the low-side switching element to turn on when an ESD event is sensed such that the low-side switching element provides a conductive discharge path between the switching node and common node.
摘要翻译：一种用于开关电源转换器的ESD保护电路，包括连接在电源电压和开关节点之间的高侧开关元件，以及连接在开关节点和公共节点之间的低侧开关元件。电流传导路径将在开关节点上发生的ESD事件耦合到ESD感测节点，并且耦合到感测节点的ESD感测电路在感测到ESD事件时产生触发信号。当触发信号指示ESD事件的感测时，第一逻辑门保持高侧开关元件关闭，并且当检测到ESD事件时，第二逻辑门使低侧开关元件导通，侧开关元件在开关节点和公共节点之间提供导电放电路径。

5. 发明申请

US20080111619A1 Apparatus and method for controlling a common-mode voltage of switching amplifiers 有权
标题翻译：用于控制开关放大器的共模电压的装置和方法
公开(公告)号：US20080111619A1
公开(公告)日：2008-05-15
申请号：US11599840
申请日：2006-11-15
申请人： Atsushi Matamura
发明人： Atsushi Matamura
IPC分类号： H03F3/217
CPC分类号： H03F3/2173
摘要： The present invention relates to an H-bridge controller and method for controlling a common-mode voltage and/or current of an H-bridge circuit. The H-bridge controller comprises a section for receiving a signal indicating at least one of a common-mode voltage and common-mode current of the H-bridge circuit, and a section for generating control signals which determine switching of the H-bridge circuit so as to control at least one of the common-mode voltage and common-mode current of the H-bridge circuit.The present invention also relates to a system and method for controlling a common-mode voltage and/or current of an H-bridge circuit, the system comprising a modulator for receiving an input signal, modulating the received input signal, and generating a digital signal, an H-bridge controller for receiving the digital signal and generating control signals for controlling operation of the H-bridge circuit, an H-bridge circuit for receiving the control signals and operating based on the received control signals so as to output an analog signal to a load, and a common-mode error determination circuit for generating an error signal indicating at least one of an error of a common-mode voltage and an error of a common-mode current of the H-bridge circuit, wherein the H-bridge controller receives the error signal and generates the control signals based on the received digital signal and the received error signal so as to reduce variations in at least one of an average of the common-mode voltage and an average of the common-mode current of the H-bridge circuit.
摘要翻译：本发明涉及用于控制H桥电路的共模电压和/或电流的H桥控制器和方法。 H桥控制器包括用于接收指示H桥电路的共模电压和共模电流中的至少一个的信号的部分，以及用于产生确定H桥电路的切换的控制信号的部分以便控制H桥电路的共模电压和共模电流中的至少一个。本发明还涉及一种用于控制H桥电路的共模电压和/或电流的系统和方法，所述系统和方法包括用于接收输入信号的调制器，调制所接收的输入信号并产生数字信号用于接收数字信号并产生用于控制H桥电路的操作的控制信号的H桥控制器，用于接收控制信号并基于所接收的控制信号进行操作以便输出模拟信号的H桥电路以及共模误差确定电路，用于产生指示共模电压的误差和H桥电路的共模电流的误差中的至少一个的误差信号，其中H- 桥接控制器接收误差信号并基于接收到的数字信号和接收到的误差信号产生控制信号，以便减少共模电压的平均值中的至少一个的变化和H桥电路的共模电流的平均值。

6. 发明授权

US07772924B2 Apparatus and method for controlling a common-mode voltage of switching amplifiers 有权
标题翻译：用于控制开关放大器的共模电压的装置和方法
公开(公告)号：US07772924B2
公开(公告)日：2010-08-10
申请号：US11599840
申请日：2006-11-15
申请人： Atsushi Matamura
发明人： Atsushi Matamura
IPC分类号： H03F3/38
CPC分类号： H03F3/2173
摘要： An H-bridge controller and a method for controlling a common-mode voltage and/or current of an H-bridge circuit are disclosed. In one embodiment, an H-bridge controller includes a section for receiving a signal indicating at least one of a common-mode voltage or common-mode current of the H-bridge circuit, and a section for generating control signals which determine switching of the H-bridge circuit so as to control at least one of the common-mode voltage or common-mode current of the H-bridge circuit. In another embodiment, a method for controlling a common-mode voltage and/or current of an H-bridge circuit includes receiving a signal indicating at least one of a common-mode voltage or common-mode current of the H-bridge circuit; and generating control signals which determine switching of the H-bridge circuit so as to control at least one of the common-mode voltage or common-mode current of the H-bridge circuit.
摘要翻译：公开了一种用于控制H桥电路的共模电压和/或电流的H桥控制器和方法。在一个实施例中，H桥控制器包括用于接收指示H桥电路的共模电压或共模电流中的至少一个的信号的部分，以及用于产生控制信号的部分， H桥电路，以便控制H桥电路的共模电压或共模电流中的至少一个。在另一个实施例中，用于控制H桥电路的共模电压和/或电流的方法包括接收指示H桥电路的共模电压或共模电流中的至少一个的信号; 以及产生确定H桥电路的切换以控制H桥电路的共模电压或共模电流中的至少一个的控制信号。

7. 发明授权

US07205920B2 Continuous-time-sigma-delta DAC using chopper stabalization 有权
标题翻译：使用斩波稳定的连续时间 - Σ-ΔDAC
公开(公告)号：US07205920B2
公开(公告)日：2007-04-17
申请号：US11228114
申请日：2005-09-16
申请人： Paul John Morrow , Maria del Mar Chamarro Marti , Colin G. Lyden , Mike Dominic Keane , Robert W. Adams , Richard Thomas O'Brien , Paschal Thomas Minogue , Hans Johan Olaf Mansson , Atsushi Matamura , Andrew Abo
发明人： Paul John Morrow , Maria del Mar Chamarro Marti , Colin G. Lyden , Mike Dominic Keane , Robert W. Adams , Richard Thomas O'Brien , Paschal Thomas Minogue , Hans Johan Olaf Mansson , Atsushi Matamura , Andrew Abo
IPC分类号： H03M1/66
CPC分类号： H03M3/34 , H03M3/502
摘要： A sigma-delta digital-to-analog converter comprises a current digital-to-analog converter (IDAC) stage which generates a current depending on an input digital signal. An output current-to-voltage converter converts the generated signal to a voltage on a continuous-time basis. The amplifier used in the output current-to-voltage converter is chopper-stabilized. The converter can be single bit or multi-bit. The IDAC stage can be implemented with a pair of branches, a first branch comprising a first biasing current source and a second branch comprising a second biasing current source. The biasing current sources can be chopper-stabilized by connecting the bias current sources to the output current-to-voltage converter by a set of switches. The switches connect the biasing current sources to the output current-to-voltage converter in a first configuration and a second, reversed, configuration. This modulates flicker noise contributed by the bias current sources to the chopping frequency. from where it can be removed by filtering downstream of the current-to-voltage converter.
摘要翻译： Σ-Δ数模转换器包括根据输入数字信号产生电流的当前数模转换器（IDAC）级。输出电流 - 电压转换器将产生的信号连续地转换成电压。在输出电流 - 电压转换器中使用的放大器是斩波稳定的。转换器可以是单位或多位。 IDAC级可以用一对分支来实现，第一分支包括第一偏置电流源和包括第二偏置电流源的第二分支。通过一组开关将偏置电流源连接到输出电流 - 电压转换器，可以对偏置电流源进行斩波稳定。开关将偏置电流源以第一配置和第二反向配置连接到输出电流 - 电压转换器。这将调制由偏置电流源提供的闪烁噪声到斩波频率。从那里可以通过对电流 - 电压转换器的下游进行滤波来去除。

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