公开(公告)号：JPH07202606A

公开(公告)日：1995-08-04

申请号：JP19427394

申请日：1994-08-18

Applicant: CONS RIC MICROELETTRONICA

Inventor： NATAARE AIETSURO ,  SERUJIO PARAARA ,  SARUBUATOORE SUKIATSUCHIANOOSE

IPC: H03G11/00 ,  H03K17/0812 ,  H03K17/082 ,  H03K17/16

Abstract: PURPOSE: To stabilize an open ring device by reducing its gain and to smoothly reduce a load current independently of the magnitude of its increase by introducing a feedback circuit block. CONSTITUTION: A limiter circuit for a maximum current to be passed from a power transistor(TR) T'p to a load ZL connected to the TR T'p is provided with a feedback circuit block 2 in addition to a deviation amplifier 1', a driver stage P' and a detecting means Rs for a load current IL. The block 2 is connected between the control terminal of the TR T'p and a current generator in the amplifier 1'.