PWM
- Thread starter Cerkit
- Start date
There may not be a concise explanation. The Fourier analysis of the two methods - natural & uniform - is a difficult task. The two techniques originate from different approaches to PWM generation. The former from an analogue approach - the latter from a digital method. I guess you know that already.
It probably transpired that harmonic measurements of practical implementations of the two methods revealed important differences [strengths / weaknesses?] which were then analysed from a detailed theoretical approach.
Doing some reading on the topic a clue may be that there is an inherent switching timing uncertainty in the digital sample & hold approach of uniform digital PWM generation. Refer for instance, to Geoffrey Walker's (BE) honours thesis on modulation & control of converters - The University of Queensland.
It probably transpired that harmonic measurements of practical implementations of the two methods revealed important differences [strengths / weaknesses?] which were then analysed from a detailed theoretical approach.
Doing some reading on the topic a clue may be that there is an inherent switching timing uncertainty in the digital sample & hold approach of uniform digital PWM generation. Refer for instance, to Geoffrey Walker's (BE) honours thesis on modulation & control of converters - The University of Queensland.
