| 摘要 |
PURPOSE:To enable the independent design of a plurality of load circuits by connecting the connection point of each diode in the series circuit thereof to one end of each load circuit. CONSTITUTION:The series circuit of diodes D11 and D12 in a forward direction for a direct current power supply V1, and another series circuit of diodes D21 and D22 are connected to each other in parallel between transistors Q1 and Q2. Also, one end of a chopper circuit part 2 is connected to the connection point of the diodes D11 and D12, and one end of an inverter circuit part 3 is connected to the connection point of the diodes D21 and D22. In any case, therefore, electric current never flows between the chopper circuit part 2 and the inverter circuit part 3. The existence of the diodes D11, D12, D21 and D22. as aforementioned prevents the influence of the chopper circuit part 2 and the inverter circuit part 3 upon each other when either is under operation. According to the aforesaid construction, each of the circuits 2 and 3 can be independently designed. |
