| 摘要 |
An improved method for generating pulse width modulated signals, e.g., for use in audio amplifiers, power amplifiers, etc. An input digital value is received and divided by a number N, producing a quotient and a residue. A plurality N of edge modulation values may then be generated based on the quotient and the residue. Each of the N edge modulation values specifies an edge of the pulse width modulated signal to be generated. Generation of the N edge modulation values may comprise applying the residue to one or more of the N edge modulation values when the residue is greater than zero. The residue may be applied to different ones of the plurality N of edge modulation values during different iterations of the method in a non-stationary fashion. The pulse width modulated signal may then be generated based on the N edge modulation values. |
