Pulsewidth Modulator Phase Shift |
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Authors: | Mitchell DM |
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Institution: | Collins Telecommunication Products Division, Rockwill International Corporation; |
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Abstract: | Phase shift for the ramp-comparator pulsewidth modulator (PWM) between a continuous input control signal and the signal frequency component of the output is analyzed. It is shown that transport lag is not implicit to these PWM systems in general but rather depends upon the existence of explicit delays between the time at which a switching decision is made and the time at which that decision is executed. |
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