Invention Grant
- Patent Title: Common mode voltage controller for self-boosting push pull amplifier
-
Application No.: US17812532Application Date: 2022-07-14
-
Publication No.: US11689167B2Publication Date: 2023-06-27
- Inventor: Remco Terwal , Thomas Omar Powell
- Applicant: Bose Corporation
- Applicant Address: US MA Framingham
- Assignee: Bose Corporation
- Current Assignee: Bose Corporation
- Current Assignee Address: US MA Framingham
- Agency: Hoffman Warnick
- Main IPC: H03F3/38
- IPC: H03F3/38 ; H03F3/217 ; H03F3/26 ; H03F1/02 ; H03F3/45 ; H03G3/30 ; H04R3/00

Abstract:
Various implementations include a common mode voltage controller for a self-boosting push pull amplifier. In some implementations, input signal are processed by: calculating, based upon the input signal, a maximum duty cycle to achieve a target differential in an output of the self-boosting push pull amplifier; calculating, based on the input signal, a set of control parameters associated with adjusting a common mode voltage of the output; and generating, based on the input signal, a pair of signals configured to adjust the common mode voltage of the output, wherein the pair of signals include a gain adjustment and offset based on the maximum duty cycle and the set of control parameters, and wherein the pair of signals are configured to maintain the target differential in the output of the self-boosting push pull amplifier as the common mode voltage is adjusted to a different operating point.
Public/Granted literature
- US20220360238A1 COMMON MODE VOLTAGE CONTROLLER FOR SELF-BOOSTING PUSH PULL AMPLIFIER Public/Granted day:2022-11-10
Information query
IPC分类: