公开(公告)号：US11545967B1

公开(公告)日：2023-01-03

申请号：US17446264

申请日：2021-08-27

Applicant: NXP B.V.

Inventor： Edwin Schapendonk ,  Wouter van der Heijden ,  Oswald Moonen ,  Henri Verhoeven ,  Ton van Deursen

IPC: H03K5/02 ,  H02M3/07

Abstract: An integrated circuit (IC) includes an input/output (I/O) circuitry with a first circuitry section including I/O pins and a second circuitry section including I/O pins. The first and second circuitry sections are mutually exclusive sections of the I/O ring. The first circuitry section includes a first I/O pin configured to receive an input voltage from a first energy source and a second I/O pin connectable to an external startup capacitor. A startup circuit is coupled to the first I/O pin and the second I/O pin. Upon receiving the input voltage from the first energy source, the startup circuit enters a during the startup phase and isolates the first circuitry section from the second circuitry section, and provides charge to the external startup capacitor. In response to achieving a predetermined minimum charge on the external startup capacitor, the first circuitry section is connected to the second circuitry section, and the startup phase ends and the IC transitions to a functional mode of operation.

公开(公告)号：US12034361B2

公开(公告)日：2024-07-09

申请号：US17658342

申请日：2022-04-07

Applicant: NXP B.V.

Inventor： Wouter van der Heijden ,  Edwin Schapendonk ,  Henricus Cornelis Johannes Buthker ,  Henri Verhoeven ,  Oswald Moonen ,  Ton van Deursen

IPC: H02M1/00 ,  H02M3/155

CPC classification number: H02M1/0032 ,  H02M3/155

Abstract: A controller for a DC-DC converter that includes an inductor. The DC-DC converter has three phases of operation: a first phase, in which an input voltage charges the inductor; a second phase, in which the inductor discharges to a load; and a third phase, in which the inductor is disconnected from the load and in which the input voltage does not charge the inductor. The controller is configured to set a control-factor based on the input voltage of the DC-DC converter, and set the duration of the third phase based on the control-factor and the sum of the duration of the first phase and the second phase.

公开(公告)号：US20220329150A1

公开(公告)日：2022-10-13

申请号：US17658342

申请日：2022-04-07

Applicant: NXP B.V.

Inventor： Wouter van der Heijden ,  Edwin Schapendonk ,  Henricus Cornelis Johannes Buthker ,  Henri Verhoeven ,  Oswald Moonen ,  Ton van Deursen

IPC: H02M3/04

Abstract: A controller for a DC-DC converter that includes an inductor. The DC-DC converter has three phases of operation: a first phase, in which an input voltage charges the inductor; a second phase, in which the inductor discharges to a load; and a third phase, in which the inductor is disconnected from the load and in which the input voltage does not charge the inductor. The controller is configured to set a control-factor based on the input voltage of the DC-DC converter, and set the duration of the third phase based on the control-factor and the sum of the duration of the first phase and the second phase.