| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inverter capable of satisfying the requirement for a high voltage by employing a chopper operating unit having a switching element playing the role of both charging and discharging. <P>SOLUTION: The inverter comprises a rectified power supply E, a small capacitance filter capacitor C0 connected in parallel with the rectified power supply, and a switching element Q repeating on/off operation. The inverter further comprises a first inductor L1 connected with the rectified power supply E through the switching element Q and charged intermittently, a large capacitance first capacitor C1, and a rectifier D for charging the first capacitor C1 with discharging current from the charged first inductor L1. These circuit elements perform chopper operation and charges the first capacitor C1. Furthermore, a second inductor L2 forms a closed circuit (Q-C1-R-L2-Q) together with the switching element Q and the first capacitor C1 thus allowing discharging of the first capacitor C1. Consequently, the first capacitor C1 is charged/discharged to supply AC power to an arbitrary load circuit R connected in series or parallel with the first capacitor C1. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
