TY - GEN
T1 - Inductor phase feedback for phase-locked loop control of electronic ballasts
AU - Lin, Ray Lee
AU - Yeh, Ming Chieh
PY - 2005
Y1 - 2005
N2 - This paper proposes a novel phase-locked loop (PLL) control technique for electronic ballasts, using the phase-feedback signal from the resonant inductor. Generally speaking, the electronic ballast with PLL control has been used to drive some high-voltage lamps with high equivalent resistance at the steady state, such as cold-cathode fluorescent lamps (CCFLs). With the proposed control scheme for electronic ballasts is thus developed to tolerate lower equivalent resistance of the lamps at the steady state, to have the operating frequency of ballasts continuously track the resonant frequency of the resonant tank. Based on the derived analysis of the proposed PLL control scheme, the design and the implementation of a prototype circuit is provided to demonstrate the performance of the proposed PLL scheme associating with a current regulator circuit.
AB - This paper proposes a novel phase-locked loop (PLL) control technique for electronic ballasts, using the phase-feedback signal from the resonant inductor. Generally speaking, the electronic ballast with PLL control has been used to drive some high-voltage lamps with high equivalent resistance at the steady state, such as cold-cathode fluorescent lamps (CCFLs). With the proposed control scheme for electronic ballasts is thus developed to tolerate lower equivalent resistance of the lamps at the steady state, to have the operating frequency of ballasts continuously track the resonant frequency of the resonant tank. Based on the derived analysis of the proposed PLL control scheme, the design and the implementation of a prototype circuit is provided to demonstrate the performance of the proposed PLL scheme associating with a current regulator circuit.
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U2 - 10.1109/IAS.2005.1518851
DO - 10.1109/IAS.2005.1518851
M3 - Conference contribution
AN - SCOPUS:33745968201
SN - 0780392086
SN - 9780780392083
T3 - Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)
SP - 2763
EP - 2769
BT - Conference Record of the 2005 IEEE Industry Applications Conference, 40th IAS Annual Meeting
T2 - 2005 IEEE Industry Applications Conference, 40th IAS Annual Meeting
Y2 - 2 October 2005 through 6 October 2005
ER -