公开(公告)号：US20170331463A1

公开(公告)日：2017-11-16

申请号：US15151665

申请日：2016-05-11

Applicant: Apple Inc.

Inventor： Zhao Wang ,  Miles G. Canada

IPC: H03K3/356 ,  G06F1/32 ,  H03K19/0185

CPC classification number: G06F1/3296 ,  G06F1/26 ,  H03K3/35613 ,  H03K19/018521

Abstract: In an embodiment, an apparatus includes an input circuit coupled to a first power supply with a first voltage level, a power circuit coupled to a second power supply with a second voltage level, and an output driver. The input circuit may receive an input signal, and generate an inverted signal dependent upon the input signal. The power circuit may generate a power signal in response to first values of the input and the inverted signals, wherein a voltage level of the power signal may be dependent upon the second voltage level. The power circuit may also generate a third voltage level on the power signal in response to second values of the input and the inverted signals. The output driver may generate an output signal dependent upon the input signal. The output signal may transition between the voltage level of the power signal and the ground reference level.

公开(公告)号：US10296075B2

公开(公告)日：2019-05-21

申请号：US15151665

申请日：2016-05-11

Applicant: Apple Inc.

Inventor： Zhao Wang ,  Miles G. Canada

IPC: G06F1/32 ,  G06F1/3296 ,  H03K19/0185 ,  H03K3/356 ,  G06F1/26

Abstract: In an embodiment, an apparatus includes an input circuit coupled to a first power supply with a first voltage level, a power circuit coupled to a second power supply with a second voltage level, and an output driver. The input circuit may receive an input signal, and generate an inverted signal dependent upon the input signal. The power circuit may generate a power signal in response to first values of the input and the inverted signals, wherein a voltage level of the power signal may be dependent upon the second voltage level. The power circuit may also generate a third voltage level on the power signal in response to second values of the input and the inverted signals. The output driver may generate an output signal dependent upon the input signal. The output signal may transition between the voltage level of the power signal and the ground reference level.