the drive under test. Fig. 3: Dynamometer torque-speed region shown for the first quadrant, for a 100 (K) temperature rise. Abstract-A dynamometer capable of emulating linear, non-linear and discontinuous loads for rotating systems is described. The controllable load is produced by a servo drive system. Applications for the dynamometer are steady state load… (More)
—This paper presents a new fixed-carrier-frequency random pulsewidth modulation method, where a new type of carrier wave is proposed for modulation. Based on simulations and experimental measurements, it is shown that the spread effect of the discrete components from the motor current spectra and acoustic spectra is very effective and is independent from… (More)
The photovoltaic (PV) stand-alone system requires a battery charger for energy storage. This paper presents the modeling and controller design of the PV charger system implemented with the single-ended primary inductance converter (SEPIC). The designed SEPIC employs the peak-current-mode control with the current command generated from the input PV voltage… (More)
A case of monosymptomatic unilateral mydriasis caused by scopolamine patches is presented. The same symptom caused by pressure from an aneurysm on the oculomotor nerve is exceptionally rare.