公开(公告)号：US20240405658A1

公开(公告)日：2024-12-05

申请号：US18325080

申请日：2023-05-29

Applicant: Novatek Microelectronics Corp.

Inventor： Tuo-Kuang Chen ,  Jui-Chi Chang ,  Yi-Meng Lan ,  Yi-Chun Lee

IPC: H02M1/00 ,  H02M3/07 ,  H02M3/156

Abstract: A power supply device and an operation method thereof are provided. The power supply device includes a charge pump circuit and a power supply circuit. The power supply circuit supplies a first power voltage to the charge pump circuit. The charge pump circuit converts the first power voltage into a second power voltage so as to supply the second power voltage to an application circuit. The power supply circuit detects the second power voltage or an output current output by the charge pump circuit to obtain a detection result. The power supply circuit dynamically adjusts the first power voltage based on the detection result.

公开(公告)号：US12255533B2

公开(公告)日：2025-03-18

申请号：US17895046

申请日：2022-08-24

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Yi-Meng Lan ,  Yung-Chou Lin ,  Tuo-Kuang Chen ,  Chih-Yang Kang

IPC: H02M3/158 ,  H02M1/00 ,  H02M1/08 ,  H02M3/156

Abstract: A power converter includes a high side switch, a low side switch, a low side driver, a loading detector, a configurable regulator and a high side driver. The low side driver generates a low side drive signal to control the low side switch. The configurable regulator generates a regulation voltage, a magnitude of which is greater when the loading detector detects that the power converter has light loading than when the loading detector detects that the power converter has heavy loading. The high side driver generates a high side drive signal that switches between the input voltage and the regulation voltage to control the high side switch.