公开(公告)号：US20150015088A1

公开(公告)日：2015-01-15

申请号：US14314271

申请日：2014-06-25

Applicant: Dialog Semiconductor GmbH

Inventor： Holger Petersen

IPC: H02M3/07

CPC classification number: H02M3/07 ,  H02M1/15 ,  H02M2003/071 ,  H02M2003/072

Abstract: The present document relates to power transformers for electronic computing devices. In particular, a power converter configured to convert electrical power at a DC input voltage Vin into electrical power at a DC output voltage is described. The power converter comprises a plurality of flying capacitors, and a plurality of switches which are configured to arrange the plurality of flying capacitors in accordance to a sequence of operation phases. The power converter comprises a control unit configured to control the plurality of switches to repeat the sequence of operation phases at a duty cycle frequency. The plurality of flying capacitors is arranged in series during the operation phases of the sequence of operation phases. The sequence of operation phases comprises at least two operation phases during which the plurality of flying capacitors is arranged in a different order.

Abstract translation: 本文件涉及用于电子计算设备的电力变压器。 特别地，描述了被配置为将DC输入电压Vin处的电力转换为DC输出电压的电力的功率转换器。 功率转换器包括多个飞行电容器，以及多个开关，其被配置为根据操作阶段的顺序布置多个飞行电容器。 功率转换器包括控制单元，其被配置为控制多个开关以占空比频率重复操作阶段的顺序。 多个飞行电容器在操作阶段的操作阶段被串联布置。 操作阶段的顺序包括至少两个操作阶段，在该操作阶段期间以不同的顺序布置多个飞行电容器。

公开(公告)号：US09997999B2

公开(公告)日：2018-06-12

申请号：US14314271

申请日：2014-06-25

Applicant: Dialog Semiconductor GmbH

Inventor： Holger Petersen

IPC: H02M3/07 ,  H02M1/15

CPC classification number: H02M3/07 ,  H02M1/15 ,  H02M2003/071 ,  H02M2003/072

Abstract: The present document relates to power transformers for electronic computing devices. In particular, a power converter configured to convert electrical power at a DC input voltage Vin into electrical power at a DC output voltage is described. The power converter comprises a plurality of flying capacitors, and a plurality of switches which are configured to arrange the plurality of flying capacitors in accordance to a sequence of operation phases. The power converter comprises a control unit configured to control the plurality of switches to repeat the sequence of operation phases at a duty cycle frequency. The plurality of flying capacitors is arranged in series during the operation phases of the sequence of operation phases. The sequence of operation phases comprises at least two operation phases during which the plurality of flying capacitors is arranged in a different order.

公开(公告)号：US20140169588A1

公开(公告)日：2014-06-19

申请号：US13714532

申请日：2012-12-14

Applicant: DIALOG SEMICONDUCTOR GMBH

Inventor： Holger Petersen

IPC: H03F3/68

CPC classification number: H03F3/68 ,  H03F1/0227 ,  H03F3/20

Abstract: A differential audio amplifier system and a related system to generate an output signal free or with only very limited clipping are disclosed. It provides a solution to solve the problem of limited electrical speaker amplifier output power available (e.g. inside battery driver applications). A differential speaker amplifier has positive and negative supply rails. In a first embodiment of the disclosure the negative supply rail is connected to the output of an inverting buck-boost converter and the positive supply rail is directly connected to VSS voltage. In a second embodiment of the disclosure the positive supply rail is connected to the output of a buck-boost converter and the negative supply rail is directly connected to a positive battery voltage.

Abstract translation: 公开了一种差分音频放大器系统和相关系统，用于产生无限制或非常有限限幅的输出信号。 它提供了解决有限的电扬声器放大器输出功率（例如在电池驱动器应用内）的问题的解决方案。 差分扬声器放大器具有正负电源轨。 在本公开的第一实施例中，负电源轨连接到反相降压 - 升压转换器的输出，并且正电源轨直接连接到VSS电压。 在本公开的第二实施例中，正电源轨连接到降压 - 升压转换器的输出，负电源轨直接连接到正电池电压。

公开(公告)号：US09444419B2

公开(公告)日：2016-09-13

申请号：US13714532

申请日：2012-12-14

Applicant: Dialog Semiconductor GmbH

Inventor： Holger Petersen

IPC: H03F3/45 ,  H03F3/20 ,  H03F3/68 ,  H03F1/02

CPC classification number: H03F3/68 ,  H03F1/0227 ,  H03F3/20

Abstract: A differential audio amplifier system and a related system to generate an output signal free or with only very limited clipping are disclosed. It provides a solution to solve the problem of limited electrical speaker amplifier output power available (e.g. inside battery driver applications). A differential speaker amplifier has positive and negative supply rails. In a first embodiment of the disclosure the negative supply rail is connected to the output of an inverting buck-boost converter and the positive supply rail is directly connected to VSS voltage. In a second embodiment of the disclosure the positive supply rail is connected to the output of a buck-boost converter and the negative supply rail is directly connected to a positive battery voltage.

Abstract translation: 公开了一种差分音频放大器系统和相关系统，用于产生无限制或非常有限限幅的输出信号。 它提供了解决有限的电扬声器放大器输出功率（例如在电池驱动器应用内）的问题的解决方案。 差分扬声器放大器具有正负电源轨。 在本公开的第一实施例中，负电源轨连接到反相降压 - 升压转换器的输出，并且正电源轨直接连接到VSS电压。 在本公开的第二实施例中，正电源轨连接到降压 - 升压转换器的输出，负电源轨直接连接到正电池电压。