| 摘要 |
<P>PROBLEM TO BE SOLVED: To convert an input voltage into a positive voltage and a negative voltage having an arbitrary value in a simple configuration. <P>SOLUTION: A voltage conversion circuit 100 comprises transistors Tr1 to Tr 5, a coil L, and a control circuit 10. The control circuit 10 turns on the transistors Tr1 and Tr2 and turns off the transistors Tr3, Tr4, and Tr5 in charge periods in a first period and a second period, turns on the transistors Tr3 and Tr4 and turns off the transistors Tr1, Tr2, and Tr5 in a discharge period in the first period, and turns on the transistors Tr2 and Tr5 and turns off the transistors Tr1, Tr3, and Tr4 in a discharge period in the second period. <P>COPYRIGHT: (C)2013,JPO&INPIT |
