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1. 发明申请

US20160336442A1 INTEGRATED HIGH SIDE GATE DRIVER STRUCTURE AND CIRCUIT FOR DRIVING HIGH SIDE POWER TRANSISTORS 审中-公开
标题翻译：集成高侧门驱动器结构和驱动高功率晶体管的电路
公开(公告)号：US20160336442A1
公开(公告)日：2016-11-17
申请号：US15112830
申请日：2015-01-16
申请人： MERUS AUDIO APS
发明人： Allan Nogueras Nielsen , Mikkel Høyerby
IPC分类号： H01L29/78 , H03K17/687 , H01L27/06 , H03F3/217
CPC分类号： H01L29/7816 , H01L21/761 , H01L21/823892 , H01L27/0629 , H01L29/1083 , H01L29/1087 , H01L29/78 , H03F3/2171 , H03F3/2173 , H03K17/687
摘要： The present invention relates to an integrated high side gate driver structure for driving a power transistor. The high side gate driver structure comprises a semiconductor substrate comprising a first polarity semiconductor material in which a first well diffusion comprising a second polarity semiconductor material is formed. A peripheral outer wall of the first well diffusion is abutted to the semiconductor substrate. A second well diffusion, comprising first polarity semiconductor material, is arranged inside the first well diffusion such that an outer peripheral wall of the second well diffusion is abutted to an inner peripheral wall of the first well diffusion. The integrated high side gate driver structure further comprises a gate driver comprising a high side positive supply voltage port, a high side negative supply voltage port, a driver input and a driver output, wherein the gate driver comprises a transistor driver arranged in the second well diffusion such that a control terminal of the transistor driver and an output terminal of the transistor driver is coupled to the driver input and the driver output, respectively; the integrated high side gate driver structure also comprises a first electrical connection between the first well diffusion and the high side negative supply voltage port and a second electrical connection between the second well diffusion and the high side negative supply voltage port.
摘要翻译：本发明涉及用于驱动功率晶体管的集成高边栅极驱动器结构。高侧栅极驱动器结构包括包括第一极性半导体材料的半导体衬底，其中形成包括第二极性半导体材料的第一阱扩散。第一阱扩散部的周边外壁与半导体基板抵接。包括第一极性半导体材料的第二阱扩散布置在第一阱扩散内部，使得第二阱扩散的外周壁与第一阱扩散的内周壁邻接。集成高侧栅极驱动器结构还包括栅极驱动器，其包括高侧正电源电压端口，高侧负电源电压端口，驱动器输入端和驱动器输出端，其中栅极驱动器包括布置在第二阱中的晶体管驱动器扩散，使得晶体管驱动器的控制端子和晶体管驱动器的输出端子分别耦合到驱动器输入端和驱动器输出端; 集成的高侧栅极驱动器结构还包括第一阱扩散和高侧负电源电压端口之间的第一电连接以及第二阱扩散与高侧负电源电压端口之间的第二电连接。

2. 发明申请

US20170359037A1 MULTI-LEVEL CLASS D AUDIO POWER AMPLIFIERS 审中-公开
公开(公告)号：US20170359037A1
公开(公告)日：2017-12-14
申请号：US15537919
申请日：2015-12-28
申请人： Merus Audio ApS
发明人： Mikkel Høyerby
IPC分类号： H03F3/217
CPC分类号： H03F3/2173 , H03F1/0277 , H03F3/2178 , H03F2200/03
摘要： A multi-level class D audio power amplifier for supplying an N-level drive signal to a loudspeaker. The multi-level class D audio power amplifier includes a switching matrix having controllable semiconductor switches where the switching matrix include at least (N−2) switch inputs, coupled to respective ones of (N−2) DC input voltage nodes, and at least 2*(N−2) switch outputs coupled to respective ones of 2*(N−2) intermediate nodes of a first output driver. A control circuit is configured to sequentially connect each of the (N−2) DC input voltages to a predetermined set of nodes of the 2*(N−2) intermediate nodes of the first output driver via the switching matrix in accordance with one or more of the 2*(N−1) modulated control signals of the first output driver. N is a positive integer larger than or equal to 3.

3. 发明申请

US20170117851A1 AUDIO AMPLIFIER USING MULTI-LEVEL PULSE WIDTH MODULATION 有权
公开(公告)号：US20170117851A1
公开(公告)日：2017-04-27
申请号：US15344151
申请日：2016-11-04
申请人： Merus Audio ApS
发明人： Mikkel Høyerby
IPC分类号： H03F1/02 , H03F3/187 , H04R3/02 , H03F3/217
CPC分类号： H03F1/0244 , H02M7/487 , H03F3/00 , H03F3/187 , H03F3/2173 , H03F3/2178 , H03F2200/03 , H03F2200/267 , H03F2200/333 , H04R3/02
摘要： The present invention relates in one aspect to a class D audio amplifier with improved output driver topology supporting multi-level output signals such as 3-level, 4-level or 5-level pulse width or pulse density modulated output signals for application to a loudspeaker load. The present class D audio amplifiers are particularly well-suited for high-volume consumer audio applications and solutions.

4. 发明授权

US09979354B2 Audio amplifier using multi-level pulse width modulation 有权
公开(公告)号：US09979354B2
公开(公告)日：2018-05-22
申请号：US15344151
申请日：2016-11-04
申请人： Merus Audio ApS
发明人： Mikkel Høyerby
IPC分类号： H03F99/00 , H03F1/02 , H03F3/217 , H03F3/187 , H04R3/02
CPC分类号： H03F1/0244 , H02M7/487 , H03F3/00 , H03F3/187 , H03F3/2173 , H03F3/2178 , H03F2200/03 , H03F2200/267 , H03F2200/333 , H04R3/02
摘要： The present invention relates in one aspect to a class D audio amplifier with improved output driver topology supporting multi-level output signals such as 3-level, 4-level or 5-level pulse width or pulse density modulated output signals for application to a loudspeaker load. The present class D audio amplifiers are particularly well-suited for high-volume consumer audio applications and solutions.

5. 发明申请

US20170331374A1 A MULTIPLE OUTPUT BOOST DC-DC POWER CONVERTER 有权
公开(公告)号：US20170331374A1
公开(公告)日：2017-11-16
申请号：US15513332
申请日：2015-09-25
申请人： Merus Audio ApS
发明人： Mikkel Høyerby
IPC分类号： H02M3/158 , H03F3/183 , H03F3/217 , H02M1/08 , H04R3/00 , H02M7/537 , H02M1/00
CPC分类号： H02M3/158 , H02M1/08 , H02M3/07 , H02M7/487 , H02M7/537 , H02M2001/0083 , H02M2001/009 , H03F1/0211 , H03F1/0244 , H03F3/183 , H03F3/217 , H03F3/2171 , H03F2200/03 , H03F2200/504 , H04R3/00
摘要： The present invention relates to a multiple output boost DC-DC power converter generating two, three or more separate DC output voltages, and to a multi-level power inverter and an alternating current generator both employing the multiple output boost DC-DC power converter.

6. 发明申请

US20170271195A1 A REGULATED HIGH SIDE GATE DRIVER CIRCUIT FOR POWER TRANSISTORS 审中-公开
公开(公告)号：US20170271195A1
公开(公告)日：2017-09-21
申请号：US15532025
申请日：2015-11-25
申请人： Merus Audio ApS
发明人： Mikkel Høyerby , Allan Nogueras Nielsen
IPC分类号： H01L21/761 , H01L21/8238 , H03F3/217 , H01L27/092 , H02M1/08
CPC分类号： H01L21/761 , H01L21/823892 , H01L27/092 , H02M1/08 , H03F3/2173 , H03K2217/0063 , H03K2217/0081
摘要： The present invention relates in a first aspect to a regulated high side gate driver circuit for power transistors. The regulated high side gate driver circuit comprises a gate driver powered by a floating voltage regulator which comprises a linear regulating device.

7. 发明授权

US09564862B2 Class D audio amplifier with adjustable loop filter characteristics 有权
标题翻译： D类音频放大器，具有可调环路滤波器特性
公开(公告)号：US09564862B2
公开(公告)日：2017-02-07
申请号：US14396922
申请日：2013-04-24
申请人： Merus Audio ApS
发明人： Mikkel Høyerby
IPC分类号： H03F3/38 , H03F3/217 , H03F1/02 , H03F3/183
CPC分类号： H03F3/217 , H03F1/0205 , H03F3/183 , H03F2200/03 , H03F2200/351
摘要： The present invention relates to a class D audio amplifier comprising a pulse width modulator, an adjustable loop filter and a feedback loop. The pulse width modulator generates a first set of pulse width modulated control signals at an adjustable modulation frequency for respective switch control terminals of a first output driver. A controller of the class D audio amplifier is configured to control frequency response characteristics of the adjustable loop filter based on a frequency setting of the adjustable modulation frequency.
摘要翻译：本发明涉及一种D类音频放大器，其包括脉宽调制器，可调环路滤波器和反馈回路。脉冲宽度调制器为第一输出驱动器的各个开关控制端子以可调的调制频率产生第一组脉宽调制控制信号。 D类音频放大器的控制器被配置为基于可调节调制频率的频率设置来控制可调节环路滤波器的频率响应特性。

8. 发明申请

US20150288335A1 CLASS D AUDIO AMPLIFIER WITH ADJUSTABLE LOOP FILTER CHARACTERISTICS 有权
标题翻译：具有可调节环路滤波器特性的D类音频放大器
公开(公告)号：US20150288335A1
公开(公告)日：2015-10-08
申请号：US14396922
申请日：2013-04-24
申请人： Merus Audio ApS
发明人： Mikkel Høyerby
IPC分类号： H03F3/217 , H03F3/183 , H03F1/02
CPC分类号： H03F3/217 , H03F1/0205 , H03F3/183 , H03F2200/03 , H03F2200/351
摘要： The present invention relates to a class D audio amplifier comprising a pulse width modulator, an adjustable loop filter and a feedback loop. The pulse width modulator generates a first set of pulse width modulated control signals at an adjustable modulation frequency for respective switch control terminals of a first output driver. A controller of the class D audio amplifier is configured to control frequency response characteristics of the adjustable loop filter based on a frequency setting of the adjustable modulation frequency.
摘要翻译：本发明涉及一种D类音频放大器，其包括脉宽调制器，可调环路滤波器和反馈回路。脉冲宽度调制器为第一输出驱动器的各个开关控制端子以可调的调制频率产生第一组脉宽调制控制信号。 D类音频放大器的控制器被配置为基于可调节调制频率的频率设置来控制可调节环路滤波器的频率响应特性。

9. 发明申请

US20180331660A1 Class D Audio Amplifier with Adjustable Gate Drive 审中-公开
公开(公告)号：US20180331660A1
公开(公告)日：2018-11-15
申请号：US15976561
申请日：2018-05-10
申请人： Merus Audio ApS
发明人： Mikkel Høyerby
IPC分类号： H03F1/02 , H03F3/185 , H03F3/217
CPC分类号： H03F1/0255 , H03F3/185 , H03F3/2171 , H03F3/2173 , H03F2200/03 , H03F2200/171 , H03F2200/18 , H03F2200/267 , H03F2200/333 , H03F2200/351
摘要： A class D audio amplifier includes a modulator for receipt of an audio signal and converting the audio signal into a modulated audio signal having a predetermined carrier frequency. The class D audio amplifier additionally includes an output stage having a plurality of power transistors coupled in cascade between a first DC supply voltage and a second DC supply voltage, and a plurality of gate drivers configured to generate respective modulated gate drive signals to the plurality of power transistors. A controller is configured to adjust a level of a first modulated gate drive signal applied to a first power transistor of the output stage based on a level of the audio signal.

10. 发明申请

US20170324321A1 LOAD ADAPTABLE BOOST DC-DC POWER CONVERTER 审中-公开
公开(公告)号：US20170324321A1
公开(公告)日：2017-11-09
申请号：US15586936
申请日：2017-05-04
申请人： Merus Audio ApS
发明人： Mikkel Høyerby
IPC分类号： H02M3/07 , H03F3/217 , H02M1/088 , H03F3/183 , H03F1/02 , H02M1/00
CPC分类号： H02M3/07 , H02M1/088 , H02M3/158 , H02M2001/0009 , H02M2001/0025 , H02M2001/0048 , H02M2001/009 , H03F1/0211 , H03F1/0244 , H03F1/0277 , H03F1/305 , H03F3/183 , H03F3/217 , H03F2200/03 , H03F2200/504 , Y02B70/1491
摘要： A boost DC-DC power converter comprising a semiconductor switch arrangement comprising a plurality of series connected semiconductor switches. A first capacitor is connected between a first intermediate node of a first leg of the semiconductor switch arrangement and a second intermediate node of a second leg of the semiconductor switch arrangement. A control circuit is coupled to respective control terminals of the plurality of semiconductor switches. A load sensor is configured to detect a load current and/or a load voltage of a load circuit connectable to at least a first DC output voltage of the DC-DC power converter. The control circuit being further configured to adjusting one or more operational parameters of the boost DC-DC power converter based on the detected load current and/or load voltage.

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