STRUCTURE FOR ELECTRONIC BALLAST

摘要

PURPOSE:To provide the structure of an electronic ballast which can miniaturize the ballast itself. CONSTITUTION:A terminal section connecting power lines 6 is provided at one end section of a printed board 1A, and a DC power source section 3 with high constituting parts such as a transformer is fitted. A terminal section connecting lamp connecting lines 7 is provided at one end section of a printed board 1B, and an inverter circuit 4 with high constituting parts such as an oscillating transformer is fitted. Constituting parts of a control circuit 5 with low constituting parts are distributively fitted at the other end sections of the printed boards 1A, 1B respectively. The printed boards 1A, 1B are stored above and below in a ballast case 2 so that the respective other end sections fitted with the constituting parts of the control circuit 5 are overlapped face to face.