| 摘要 |
PROBLEM TO BE SOLVED: To provide a control circuit of an electric power-saving lamp by which a high power factor can be attained and a voltage peak reacting to a power source can be substantially set to 0. SOLUTION: A first electrode E1 of a glow lamp FL is connected to a coupling terminal H between an emitter resistance R3 of one transistor T1 of a high frequency oscillation circuit and a collector of a second transistor T2 through a connection line VL. A second electrode E2 of this glow lamp FL is also connected to a line 0. By this constitution, supply voltage is supplied to a load together with an integrated rated voltage. Therefore, a voltage peak is compensated, and a power factor is remarkably improved. |
