| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a living tissue stimulation circuit which carries out electric stimulation suitably by widening the setting range of the stimulation condition of a bipolar electric stimulation pulse signal. <P>SOLUTION: The living tissue stimulation circuit includes: an H-bridged circuit that includes a first series section in which a first semiconductor switch on a power source side and a third semiconductor switch on a ground side are connected to each other in series and a second series section in which a second semiconductor switch on the power source side and a fourth semiconductor switch on the ground side are connected to each other in series and wherein the first series section and the second series section are connected to each other in parallel; a stimulation electrode connected to a first connection point between the first and third semiconductor switches; a counter electrode connected to a second connection point between the second and fourth semiconductor switches; a first current source arranged on the ground side ends of the third and fourth semiconductor switches for setting current value outputted from the stimulation electrode; and a second current source arranged on the power source side ends of the first and second semiconductor switches for setting current value outputted from the stimulation electrode. <P>COPYRIGHT: (C)2012,JPO&INPIT |
