发明授权
US4322640A Three-state output circuit 失效
三态输出电路

Three-state output circuit
摘要:
A three-state output circuit is disclosed. The three-state output circuit is comprised of a phase-splitter transistor, a pull-up transistor and a pull-down transistor and further comprised of a control circuit which operates to make the transistors active or non-active. At least one of said transistors is connected to the control circuit via a newly employed PNP transistor through its emitter and base. The collector thereof is connected to a ground point of the three-state output circuit.
公开/授权文献
信息查询
0/0