公开(公告)号：US20240275282A1

公开(公告)日：2024-08-15

申请号：US18166576

申请日：2023-02-09

Applicant: GlobalFoundries U.S. Inc.

Inventor： Dzung T. TRAN ,  Shivraj G. Dharne ,  Asif Iqbal

IPC: H02M3/158 ,  H02M1/00 ,  H02M1/096 ,  H02M1/36

CPC classification number: H02M3/158 ,  H02M1/0009 ,  H02M1/096 ,  H02M1/36

Abstract: A reference circuit for an electronic device having a plurality of power supply voltages comprises a supply start-up circuit, a power-down start-up circuit, and a reference generating circuit. The supply start-up circuit comprising a resistive-capacitive (RC) circuit coupled between a first power supply voltage and a ground. The RC circuit includes a pulse node coupled between a first capacitor and a resistive element, and generates a power-up pulse signal at the pulse node. The power-down start-up circuit is powered by a second power supply voltage and comprises a pulse generation circuit that generates a first start-up signal. The reference generating circuit outputs a reference signal. The reference generating circuit exists a low-power mode when either of the power-up pulse signal and the first start-up signal is generated.

公开(公告)号：US20240195419A1

公开(公告)日：2024-06-13

申请号：US18080378

申请日：2022-12-13

Applicant: GlobalFoundries U.S. Inc.

Inventor： Dzung T. TRAN ,  Shivraj G. DHARNE

IPC: H03K19/0185 ,  H03K19/003

CPC classification number: H03K19/018521 ,  H03K19/00315 ,  H03K19/00361

Abstract: The present disclosure relates to a structure including a level shifter circuit which receives an input signal and at least one voltage reference signal and outputs at least one level shifted output signal, a pre-driver circuit which receives the at least one level shifted output signal and outputs at least one pre-driver output signal, the pre-driver circuit including at least one delay circuit, and a main driver circuit which receives the at least one pre-driver output signal and outputs a main driver output signal.