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Practical Framework for Problem-Based Learning in an Introductory Circuit Analysis Course
Introductory courses on electric circuits at undergraduate level are usually presented in quite abstract terms, with questions and problems quite far from practical problems.
Pulse-Width Modulation Technique With Harmonic Injection in the Modulating Wave and Discontinuous Frequency Modulation for the Carrier Wave for Multilevel Inverters: An Application to the Reduction of Acoustic Noise in Induction Motors
The aim was to justify the reduction in acoustic noise emitted by the machine compared with other strategies in the technical literature.
Connection of converters to a low and medium power DC network using an inductor circuit
This letter describes an alternative for the connection of power converters to a direct current network without the installation of a capacitor in the DC-Link.
PWM strategy with harmonics injection and modulated frequency triangular carrier. A review
A new, programmed pulse width modulation (PWM) technique to control power inverters, which uses a harmonic injection modulator and a frequency modulated triangular carrier, synchronized with the modulating signal is presented in this paper.
Pulse width modulation technique with harmonic injection in the modulating wave and discontinuous frequency modulation for the carrier wave to reduce vibrations in asynchronous machines
This is made possible by using a control parameter that modifies the instantaneous frequency of the carrier wave without modifying the number of pulses per period of the modulating wave, i. e. the mean value of the carrier wave frequency.
