公开(公告)号：US20180062508A1

公开(公告)日：2018-03-01

申请号：US15798193

申请日：2017-10-30

Applicant: Apple Inc.

Inventor： Weijun YAO ,  David A. STRONKS ,  Hopil BAE ,  Kingsuk BRAHMA ,  Wei Hsin YAO ,  Yafei BI ,  Yingxuan LI

IPC: H02M3/07 ,  H01L23/64 ,  G06F3/044 ,  G06F1/32 ,  G06F3/041

CPC classification number: H02M3/07 ,  G06F1/3262 ,  G06F3/041 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  H01L23/642

Abstract: A charge pump that can be configured to operate in a first mode and a second mode is disclosed. The charge pump can comprise a charging capacitor coupled to a first node and configured to transfer a first DC voltage to the first node. The charge pump can also comprise a first output node and a second output node coupled to the first node. During the first mode, the first output node can be configured to output a second DC voltage based on the first DC voltage, and the second output node can be configured to output a third DC voltage based on the first DC voltage. During the second mode, the first output node can be configured to output the second DC voltage, and the second output node can be configured to output an AC voltage, the AC voltage being offset by the third DC voltage.

公开(公告)号：US20160241139A1

公开(公告)日：2016-08-18

申请号：US15043405

申请日：2016-02-12

Applicant: Apple Inc.

Inventor： Weijun YAO ,  David A. STRONKS ,  Hopil BAE ,  Kingsuk BRAHMA ,  Wei Hsin YAO ,  Yafei BI ,  Yingxuan LI

IPC: H02M3/07 ,  G06F3/044 ,  G06F3/041

CPC classification number: H02M3/07 ,  G06F1/3262 ,  G06F3/041 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  H01L23/642

Abstract: A charge pump that can be configured to operate in a first mode and a second mode is disclosed. The charge pump can comprise a charging capacitor coupled to a first node and configured to transfer a first DC voltage to the first node. The charge pump can also comprise a first output node and a second output node coupled to the first node. During the first mode, the first output node can be configured to output a second DC voltage based on the first DC voltage, and the second output node can be configured to output a third DC voltage based on the first DC voltage. During the second mode, the first output node can be configured to output the second DC voltage, and the second output node can be configured to output an AC voltage, the AC voltage being offset by the third DC voltage.

Abstract translation: 公开了一种可被配置为在第一模式和第二模式下操作的电荷泵。 电荷泵可以包括耦合到第一节点并被配置为将第一DC电压传送到第一节点的充电电容器。 电荷泵还可以包括耦合到第一节点的第一输出节点和第二输出节点。 在第一模式期间，第一输出节点可以被配置为基于第一DC电压输出第二DC电压，并且第二输出节点可以被配置为基于第一DC电压输出第三DC电压。 在第二模式期间，第一输出节点可以被配置为输出第二DC电压，并且第二输出节点可以被配置为输出AC电压，AC电压被第三DC电压偏移。