Invention Grant
US09467097B2 Edge correction to mitigate total harmonic distortion in class D amplifier
有权
边缘校正,以减轻D类放大器的总谐波失真
- Patent Title: Edge correction to mitigate total harmonic distortion in class D amplifier
- Patent Title (中): 边缘校正,以减轻D类放大器的总谐波失真
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Application No.: US14324886Application Date: 2014-07-07
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Publication No.: US09467097B2Publication Date: 2016-10-11
- Inventor: Cetin Kaya
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATION
- Current Assignee: TEXAS INSTRUMENTS INCORPORATION
- Current Assignee Address: US TX Dallas
- Agent Gregory J. Albin; Frank D. Cimino
- Main IPC: H03F3/38
- IPC: H03F3/38 ; H03F3/217 ; H03F1/32

Abstract:
A circuit includes an amplifier output stage that includes a high switch and a low switch that generates a pulse width modulated (PWM) output signal to provide a load current to a load in response to a PWM input signal. The circuit includes a high gate drive that drives the high switch with a PWM high drive signal derived from the PWM input signal. This includes a low gate drive that drives the low switch with a PWM low drive signal derived from the PWM input signal. The circuit includes an edge corrector that adjusts at least one of a leading edge and a trailing edge of the PWM input signal to compensate for response time differences with respect to a direction of the load current to the load.
Public/Granted literature
- US20160006402A1 EDGE CORRECTION TO MITIGATE TOTAL HARMONIC DISTORTION IN CLASS D AMPLIFIER Public/Granted day:2016-01-07
Information query
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