VOLTAGE FOLLOWER Russian patent published in 1998 - IPC

FIELD: electrical engineering; miscellaneous analog integrated circuits. SUBSTANCE: device has current supply 1, transistors 2 and 3, and current follower 4; base of transistor 3 functions as input of device and its emitter is combined with base of transistor 2 and connected to first lead of current supply 1 whose second lead is combined with collector of transistor 2 and connected to first power bus; emitter of transistor 2 functions as output of device; collector of transistor 3 is connected to input of current follower 4 whose power lead is connected to second power bus; transistor 3 whose base is connected to device input has its emitter coupled with output of current follower 4 and its collector is connected to emitter of transistor 2. EFFECT: reduced input current level. 1 dwg