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In this work, a new performance parameter, namely power factor, introduced is used in the analysis of buck DC-DC converter operating in DCM. The power factor concept is now applied in the analysis of DC circuits. The derivation of the parameter and its application as one of the performance parameters in the analysis of the buck DC-DC converter operating in DCM and boost converter operating in discontinuous...
High-intensity discharge (HID) lamps are becoming popular substitutes for halogen lamps in automotive headlamps because of the high lumen/watt ratio and the color of the light. In this paper, a ballast (integrated with a voltage multiplier circuit in the secondary winding of the dc converter transformer) with dimming control is presented. The proposed circuit not only eliminates one auxiliary winding...
A DC microgrid distribution system is described in this paper. A number of DC/DC converters are connected in parallel in the same power distribution line and a server PC is programmed to generate a carrier in high frequency with modulated signal to regulate each power converter. Experimental results have confirmed that the method can be used to regulate buck converter successfully and the address...
This paper examines the H-bridge converter using passivity based control. The nonlinearity of resonant type H-bridge converter is poor and therefore the dynamic performance of the converter is weak. Using simple PI control, the transient response is not satisfactory. The passivity based control is first derived for the H-bridge converter. The parameter estimation is examined and the comparison with...
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