公开(公告)号：US12199610B2

公开(公告)日：2025-01-14

申请号：US18531639

申请日：2023-12-06

Applicant: Renesas Electronics America Inc.

Inventor： Dong-Young Chang ,  Steven Ernest Finn

IPC: H03K3/017 ,  H03K5/156 ,  H03K7/08 ,  H03K17/687

Abstract: In an embodiment, an apparatus is disclosed that includes a duty cycle controller. The duty cycle controller includes a tuning circuit comprising a first field-effect transistor. The first field-effect transistor is configured to implement a capacitor. The duty cycle controller further includes an edge delay circuit. The edge delay circuit includes a second field-effect transistor that, when activated by an input clock signal of the duty cycle controller, is configured to connect a voltage source to an output clock signal of the duty cycle controller. The edge delay circuit further includes a third field-effect transistor that, when activated, is configured to connect the first field-effect transistor of the tuning circuit to the output clock signal.

公开(公告)号：US11888481B2

公开(公告)日：2024-01-30

申请号：US17554652

申请日：2021-12-17

Applicant: Renesas Electronics America Inc.

Inventor： Dong-Young Chang ,  Steven Ernest Finn

IPC: H03K3/017 ,  H03K17/687 ,  H03K5/156 ,  H03K7/08

CPC classification number: H03K3/017 ,  H03K5/1565 ,  H03K7/08 ,  H03K17/6872

Abstract: An apparatus is disclosed that includes a duty cycle controller. The duty cycle controller includes a tuning circuit comprising a first field-effect transistor. The first field-effect transistor is configured to implement a capacitor. The duty cycle controller further includes an edge delay circuit. The edge delay circuit includes a second field-effect transistor that, when activated by an input clock signal of the duty cycle controller, is configured to connect a voltage source to an output clock signal of the duty cycle controller. The edge delay circuit further includes a third field-effect transistor that, when activated, is configured to connect the first field-effect transistor of the tuning circuit to the output clock signal.