Invention Grant
- Patent Title: Method of generating a pulse width modulation (PWM) signal for an analog amplifier, and a related pulse width modulator
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Application No.: US14914768Application Date: 2014-10-10
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Publication No.: US10044326B2Publication Date: 2018-08-07
- Inventor: Joseph Sylvester Chang , Tong Ge , Linfei Guo
- Applicant: Nanyang Technological University
- Applicant Address: SG Singapore
- Assignee: Nanyang Technological University
- Current Assignee: Nanyang Technological University
- Current Assignee Address: SG Singapore
- Agency: Cesari and McKenna, LLP
- Agent James A. Blanchette
- International Application: PCT/SG2014/000476 WO 20141010
- International Announcement: WO2015/053714 WO 20150416
- Main IPC: H03F1/32
- IPC: H03F1/32 ; H03F3/187 ; H03F3/217 ; H03F3/45 ; G11C27/02 ; H03F3/183 ; H03K7/08
Abstract:
A method (300) of generating a pulse width modulation (PWM) signal for an analog amplifier, the amplifier arranged to receive an amplifier input signal having a magnitude, is disclosed. The method comprises receiving (302) a modulator input signal, which is associated with the amplifier input signal; and using (304) the modulator input signal to modulate a carrier to produce the PWM signal, wherein the carrier's frequency varies in dependence on the magnitude of the amplifier input signal. A related pulse width modulator is also disclosed.
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