Invention Grant
- Patent Title: Charge pump transient response optimization by controlled flying capacitor discharge during bypass to switching mode transition
-
Application No.: US16528906Application Date: 2019-08-01
-
Publication No.: US11038420B2Publication Date: 2021-06-15
- Inventor: Mark Mercer , Jeffrey Kanner
- Applicant: Dialog Semiconductor (UK) Limited
- Applicant Address: GB London
- Assignee: Dialog Semiconductor (UK) Limited
- Current Assignee: Dialog Semiconductor (UK) Limited
- Current Assignee Address: GB London
- Agency: Saile Ackerman LLC
- Agent Stephen B. Ackerman
- Main IPC: H02M3/158
- IPC: H02M3/158 ; H02M3/07 ; H02M1/00

Abstract:
Circuits and methods to enable wireless power transmission and reception are presented. A two-stage power converter has a boost regulator to boost an input voltage to an intermediate voltage. Moreover, the two-stage power converter may also comprise a charge pump coupled to the boost regulator to generate an output voltage based on the intermediated voltage. More particularly, the charge pump may comprise a plurality of transistor devices and a flying capacitor and the charge pump may be bypassed during a bypass mode of operation. Finally, the two-stage power converter may have control circuitry coupled to the charge pump. In particular, the control circuitry may generate a control voltage of a first transistor device of the plurality of transistor devices in order to regulate a discharge rate of the flying capacitor, during a transition phase from the bypass mode of operation to a normal mode of operation.
Public/Granted literature
Information query
IPC分类: