| 摘要 |
PURPOSE:To prevent the leakage of gate currents for controlling OFF to a path for principal currents during a period when the switch is turned OFF by setting up a first transistor with two collectors and second - fourth transistors of a conduction type complementary to the first transistor. CONSTITUTION:The first transistor 8 with two collectors and the second, third and fourth transistors 6, 7, 9 of the conduction type complementary to the first transistor are set up. The first collector of the first transistor 8 and the base of the second transistor 6 are connected, and the base of the first transistor and the collector of the second transistor 6 are connected, thus equivalently constituting the P-N-P-N type switch. The collector of the third transistor 7 is connected to the base of the second transistor 6, and the base of the third transistor 7 and the collector of the fourth transistor 9 are connected to the second collector of the first transistor 8. |
