| 摘要 |
<p>A capacitive load driving circuit for amplifying a spike-like signal at a high-speed and obtaining a high-voltage large current load, wherein a booster of a low consumption current is used. In the circuit, two transistors (104, 111) are interconnected in series between a first power supply (H1) and a second power supply (L1) whose potential is lower than that of the first power supply, and an output terminal (OUT) is provided at the joint at which the two transistors are connected. The first transistor (104) connected between the first power supply and the output terminal, and the second transistor (111) connected between the output terminal and the second power supply are so selected that they are complementary to each other. The first transistor (104) is a PNP bipolar transistor or a P-type field effect transistor, and on the other hand, the second transistor (111) is an NPN-type bipolar transistor or an N-type field effect transistor. Further, provided between the control terminals of the respective transistors and an input terminal part (IN) are two parallel circuits each comprising a means for giving a bias to the control terminal and a capacitor.</p> |
