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A new family of electronic ballasts for fluorescent lamps employing the voltage source-charge pump power factor correction (VS-CPPFC) concept with no start-up Cr capacitor is presented in this paper. Besides allowing the power factor correction, the Cin capacitor has also the function of achieving the start-up process of the lamps. Thereby, the proposed electronic ballasts present a high input power...
A new topology of electronic ballast for fluorescent lamps employing the charge pump concept but with no LC input filter is presented in this paper. The use of magnetic coupled boost inductors together with the connection of the resonant capacitor directly at the input stage assures high power factor even with no filtering stage for the input current. Thereby, the proposed electronic ballast presents...
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