本文提出用于TTL电路的一种内部有源泄放电路.文中介绍了它的结构、工作原理和设计计算.采用内部有源泄放电路后,使门电路较好地解决了功耗、速度、负载能力三者之间的矛盾关系,还适合于构成中、大规模集成电路中的最简的内部门.因此,可以期望这类电路形式将在数字电路中获得广泛的应用. In this paper, an internal active drain circuit for TTL circuit is proposed. Its structure, working principle and design calculation are introduced in this paper. After the internal active drain circuit is used, the gate circuit solves the problem of power consumption, speed , Load capacity of the three contradictions between, but also suitable for the formation of medium and large scale integrated circuits in the most simple internal gate. Therefore, it can be expected that such circuit forms will be widely used in digital circuits.