| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a current driver circuit that more accurately controls an output current. Ž<P>SOLUTION: When a voltage potential of a first input terminal 4a becomes lower than that of a second input terminal 4b by an offset voltage, a first control circuit of a current driver circuit inputs a voltage Vs1 of a first junction to the first input terminal and controls a polarity switching circuit 5a so as to input a control voltage to the second input terminal in a normal operation mode of a normal operation. At the same time, when the voltage potential of the first input terminal becomes higher than that of the second input terminal by offset voltage, the first control circuit inputs the voltage of the first junction to the second input terminal and inputs the control voltage to the first input terminal, and controls the poler switching circuit 5a so as to invert a polarity of an amplifying signal in a normal operation mode. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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