Continuous-Conduction-Mode Charge-PumpPower-Factor-Correction Electronic Ballasts withDC-Bus Voltage-Stress Reduction Function

• Main Authors: Yen-YuChen, 陳彥宇
• Other Authors: Ray-Lee Lin
• Format: Others
• Language: en_US
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/36772131505338942180

碩士 === 國立成功大學 === 電機工程學系碩博士班 === 98 === This thesis presents the continuous-conduction-mode charge-pump power-factor-correction (CCM CP-PFC) electronic ballasts with DC-bus voltage-stress reduction function. The CP-PFC techniques are widely applied to the electronic ballasts in order to achieve high power factor. However, the DC-bus voltage at preheat or ignition mode is higher than that at steady-state operation, which causes high voltage stresses on the active and passive components. Therefore, the input notch filter for the CCM CP-PFC electronic ballasts is proposed in order to reduce the DC-bus voltage stress at preheat and ignition modes. Furthermore, to achieve high power factor functionality, the design guidelines for the CCM voltage-source (VS) and current-source (CS) CP-PFC electronic ballasts are presented. Finally, two prototype circuits of the CCM VS and CS CP-PFC electronic ballasts for one T5-54W fluorescent lamp are built to verify the performance of the PFC and the voltage-stress reduction capability of the DC-bus.