| 摘要 |
<p>In a current driving circuit which supplies a two-terminal load with current to be inverted in accordance with input information, a current driving circuit according to the present invention comprises a load (7) whose one-side terminal (22) has its potential fixed, first means (18) to supply a non-fixed side terminal (21) of the load (7) with a direct current (IL1), and second means (19,20) to supply the non-fixed side terminal (21) with a current (IL2) having a magnitude double that of the direct current and a polarity opposite to that of the direct current, while switching it in accordance with input information (G3, G4, G5, Gs). Owing to such construction, the number of terminals to be led out from the loads can be reduced, and a load current can be inverted at high speed. In addition, reliability can be enhanced owing to the simplification of an assembling process.</p> |
