| 摘要 |
PROBLEM TO BE SOLVED: To provide a current switching circuit which accelerates current switching and does not generate useless current consumption. SOLUTION: The current switching circuit 100 includes a current switching part 10 for directly controlling the ON/OFF of a current from a current source D3, a correction current generation part 20 for generating a correction current Ix to be added at the rise of a control current Im and to be subtracted at the fall of the control current Im in the current switching part 10 corresponding to impressed input pulse signal Vi, and a timing adjustment part 30 for delaying the input pulse signal Vi, generating switching signals to be impressed to the current switching part 10, and matching the timing at the rise of the control current Im with that at the addition of the correction current Ix and the timing at the fall of the control current Im with that at the subtraction of the correction current Ix, and outputs a current for which the control current Im and the correction current Ix are added. COPYRIGHT: (C)2010,JPO&INPIT
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