Hassan Fathabadi

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—In this paper, we consider a designed and implemented phase-cutting dimmer. In fact, the dimmer is closed loop and a microcontroller calculates and then regulates the firing delay angles of each channel. Depending on the firing angle, the harmonic distortion in the input current will not comply with international standards, such as IEC 61000-3-2 (class C(More)
—In this paper, we consider a designed and implemented dimmer. The dimmer is closed loop and phase-cutting type. In fact, a microcontroller calculates and then regulates the firing delay angles of eight triacs. Depending on the firing angle, the harmonic distortion in the input current will not comply with international standards, such as IEC(More)
—In this paper, we consider a signal which has been sampled synchronously with sampling frequencies equal to bandwidth (B.W) and 1.5 B.W. So, sampling is uniform and sampled signals are undersampled. Then two undersampled signals will be transmitted by two parallel transmission channels that the bandwidth of each channel is only %50 of bandwidth of the(More)
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