Invention Grant
- Patent Title: Hysteretic current control switching power converter with clock-controlled switching frequency
-
Application No.: US17242012Application Date: 2021-04-27
-
Publication No.: US11594967B2Publication Date: 2023-02-28
- Inventor: Michael Couleur , Nicola Rasera , Nikola Jovanovic , Pietro Gabriele Gambetta
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Kowert, Hood, Munyon, Rankin & Goetzel, P.C.
- Agent Erik A. Heter; Dean M. Munyon
- Main IPC: H02M3/158
- IPC: H02M3/158 ; H02M1/08 ; H02M1/00

Abstract:
A hysteretic current control switching power converter with a clock-controlled switching frequency is disclosed. A power converter includes a switching circuit including a high side switch and a low side switch coupled to one another at a switching node, with an inductor being coupled between the switching node and a regulated supply voltage node. The power converter further includes a control circuit configured to alternately cause activation of the high side switch and the low side switch, wherein the control circuit is configured to activate the low side switch in response to a first voltage reaching peak threshold value, the first voltage corresponding to a current through the inductor. A ramp voltage circuit is configured to, in response to a clock signal, generate a ramp voltage, wherein the peak threshold value is based on the ramp voltage.
Public/Granted literature
- US20220345040A1 Hysteretic Current Control Switching Power Converter with Clock-Controlled Switching Frequency Public/Granted day:2022-10-27
Information query
IPC分类: