| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic stabilizer of a single switch type and a self-starting self-excited oscillating type for a lighting circuit to enable controlling the duty ratio. SOLUTION: The electronic stabilizer comprises a switch (34) constituted as an E class invertor, the first transformer winding (36) to supply regenerated feedback current to the above switch, feedback route including a feedback inductor (40) and a charging capacitor (42), resistor circuits (44 and 46) for starting to receive rectified direct current, a power source inductor (32) to generate direct current to be supplied to the stabilizer (12) and Zener diodes (48 and 50) connected to the above switch, the transformer and the power source inductor. On starting, the above charging capacitor is charged through the above resistor circuits for starting until reaching a threshold value to bias the switch to the on-state and the stabilizer performs oscillation until reaching a switching mode when the above switch is turned on. |
