Abstract:
카테콜기를가지고있는단백질이코팅된탄소나노튜브및 상기카테콜기에금속이온이결합된탄소나노튜브복합체및 그제조방법이제공된다. 해당탄소나노튜브복합체에따르면, 탄소나노튜브의고유의물성을유지하면서도분산성과가교정도를제어할수 있는탄소나노튜브복합체를제조할수 있다. 또한, 외부의환경변화에따라서탄소나노튜브복합체의상변화및 응집성을빠르고반복적으로제어할수 있으므로, 자기치유소재로서의료용, 환경용등 다양한산업분야에사용될수 있다.
Abstract:
A high-speed gate drive circuit in an inverter circuit is provided, which is constructed in such a manner that the emitter of a semiconductor switch S1 is connected to one side of the primary side T11 of a sensing transformer, the cathod of a diode D2 is connected to the other side of the primary side T11, a gate resistor Rg1 is connected between a gate voltage Vg1 and the gate of semiconductor switch S1, the collector of a transistor Qa1 is serially connected to the cathod of a diode Da1 which is connected between the gate resistor Rg1 and gate of semiconductor switch S1, the emitter of transistor Qa1 is coupled to the emitter of semiconductor switch S1, a base resistor Rb1 is serially coupled to the base of transistor Qa1, and the secondary side T21 of the sensing transformer is connected in parallel to a sensing resistor Rs1 which is connected between the base resistor Rb1 and the emitter of transistor Qa1 in parallel.