| 摘要 |
PROBLEM TO BE SOLVED: To enhance safety and keep the operation of a circuit normal by preventing firing and smoking due to the short circuit of a power supply. SOLUTION: In an inverter IV which has a switching transistor Q1 connected to a DC power supply and which converts direct current into alternating current by the on/off action of the transistor Q1, and in a circuit for driving a fluorescent lamp FL with an AC voltage output from the inverter IV, avalanche diodes Z1 and Z2 connected in series with the transistor Q1 are comprised of a plurality of the same parts connected in series in the same direction. |
