| 摘要 |
<P>PROBLEM TO BE SOLVED: To entirely adapt to a variety of feeding systems of electric power for a fluorescent tube type lighting device without switching and to perform noise removal uniformly for the variety of feeding systems using an exclusive common mode choke coil. <P>SOLUTION: A fluorescent tube type lighting device includes: protection elements R1-R4; capacitors C1-C3; a common mode choke coil CTC1 provided with 4 or more coils; and rectification circuits. All of AC1-AC4 are connected to the common mode choke coil CTC1. The rectification circuits BD1 and BD2 are connected between outputs OUT1 and OUT2. <P>COPYRIGHT: (C)2012,JPO&INPIT |
