Tag Archives: duty cycle

Generating antiphase PWM signals with the dsPIC30F4011

I frequently receive queries from people who are using a dsPIC microcontroller to control power electronics of some kind, such as in an inverter, a voltage converter, or similar. Many of these queries relate to the generation of different combinations … Continue reading

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Using a dsPIC30F4011 to generating 4 PWM signals with equal duty cycles but at 90 degree phase increments

In a recent comment on one of my blog posts, Saptarshi De posed an interesting problem: How can the dsPIC30F4011 be used to generate four PWM signals of equal (but variable) duty cycle at 90 degree phase increments? Saptarshi wants … Continue reading

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IGBT control in a buck-boost DC-DC converter

Reader Jil Sutaria wrote in a with a query about controlling four IGBTs in a buck-boost DC-DC converter. Some of the main features of this application are: Two pairs of IGBTs need to be controlled. Each pair of IGBTs share … Continue reading

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PWM output on 2 channels of the dsPIC30F4011 with equal duty cycle and 180 degrees out of phase

Reader Mo Hsen wrote in with an interesting query about generating PWM output from the dsPIC30F4011 on two channels with equal duty cycle but 180 degrees out of phase (see the waveforms below for an example). I’ve created a short … Continue reading

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