| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a voltage divider circuit that is configured to be capable of outputting a highly accurately divided DC voltage with a comparatively simple structure. <P>SOLUTION: Two semiconductor switches Sd1, Sd2 connected in series and having diodes D1, D2 connected inversely parallel, two semiconductor switches Sd3, Sd4 connected in series and having diodes D3, D4 connected inversely parallel, and voltage divider capacitors Cd1, Cd2 connected so as to divide an output voltage by a desired voltage ratio are connected between upper and lower terminals of a DC voltage source VO. Furthermore, the middle point 'a' of the semiconductor switches Sd1, Sd2 is connected to the middle point 'c' of the voltage divider capacitors Cd1, Cd2 via a voltage limiting element Ld1, and the middle point 'b' of the semiconductor switches Sd3, Sd4 to the middle point 'c' of the voltage divider capacitors Cd1, Cd2 via another voltage limiting element Ld2. The voltage divider circuit is formed by winding inductors, which are the voltage limiting elements Ld1, Ld2, on a common iron core 23. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
