公开(公告)号：JPH0750575A

公开(公告)日：1995-02-21

申请号：JP34420192

申请日：1992-12-24

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： SHIN KISEN ,  SOU GENTETSU ,  KIN HOSHIMICHI

IPC: H03K17/04 ,  H03K17/66 ,  H03K19/013 ,  H03K19/018 ,  H03K19/086

Abstract: PURPOSE: To obtain a quicker switching characteristic, without adding elements nor changing a current by considerably reducing the impedance which drives a capacitor. CONSTITUTION: An output part 130 includes an emitter follower transistor TR 212, which is connected between a first power terminal VCC and an output node 213 and is turned on by the voltage level of a collector node 111 of a TR 102, a pull-down TR 214 which is connected between the output node 213 and a second power terminal VEE, a TR 216 which is turned on by the voltage level of a collector node 110 of a TR 101 connected between the first power terminal VCC and a node 211, and a resistance 215 and a capacitor 217 which are connected in parallel between the node 211 and a node 218, which generates a voltage for drive of the pull-down TR 214.