公开(公告)号：EP2533128B1

公开(公告)日：2014-01-08

申请号：EP11169336.2

申请日：2011-06-09

Applicant: ams AG

Inventor： Singnurkar, Pramod

IPC: G05F3/08 ,  H03G1/00 ,  H05B33/08

CPC classification number: G05F3/08 ,  H03F3/45192 ,  H03F3/45695 ,  H03F3/45753 ,  H03F3/45762 ,  H05B33/0815 ,  Y02B20/347

公开(公告)号：EP2533128A1

公开(公告)日：2012-12-12

申请号：EP11169336.2

申请日：2011-06-09

Applicant: austriamicrosystems AG

Inventor： Singnurkar, Pramod

IPC: G05F3/08 ,  H03G1/00 ,  H05B33/08

CPC classification number: G05F3/08 ,  H03F3/45192 ,  H03F3/45695 ,  H03F3/45753 ,  H03F3/45762 ,  H05B33/0815 ,  Y02B20/347

Abstract: A regulated current source comprises a controllable output means (Mp) and a first regulation loop with a first comparing means to provide a control signal to the controllable output means. A first switch is arranged between the controllable output means and an output of the first comparing means. The current source also comprises an offset cancellation loop having second comparing means coupled with its input to the output of the first comparing means. A unity gain buffer is coupled to a node between the first switch and the controllable output means and selectively switchable arranged in parallel to the first switch.

Abstract translation: 调节电流源包括可控输出装置（Mp）和具有第一比较装置的第一调节回路，以向可控输出装置提供控制信号。 第一开关布置在可控输出装置和第一比较装置的输出之间。 电流源还包括偏移消除环路，其具有与其输入耦合到第一比较装置的输出的第二比较装置。 单位增益缓冲器耦合到第一开关和可控输出装置之间的节点，并且与第一开关并联地选择性地切换。

公开(公告)号：EP3244533A1

公开(公告)日：2017-11-15

申请号：EP17168350.1

申请日：2017-04-27

Applicant: MediaTek Inc.

Inventor： TSAI, Hung-Chieh ,  LIN, Yu-Hsin

IPC: H03F3/45 ,  H03F1/02

CPC classification number: H03F3/45695 ,  H03F1/0222 ,  H03F3/45 ,  H03F3/45179 ,  H03F3/45215 ,  H03F3/45228 ,  H03F2203/45024 ,  H03F2203/45462 ,  H03F2203/45504

Abstract: An amplifier (100) includes an amplifying stage (110), a cascoded circuit (102), an input feed-forward circuit (120) and an output stage (150). The amplifying stage (110) is arranged receiving a differential input pair to generate an amplified differential input pair. The input feed-forward circuit (120) is coupled to the cascoded circuit (102), and is arranged for feeding the differential input pair forward to the cascoded circuit (102). The output stage (150) is coupled to the amplifying stage (110) and the cascoded circuit (102), and is arranged for generating a differential output pair according to the amplified differential input pair and an output of the cascoded circuit (102).

Abstract translation: 放大器（100）包括放大级（110），级联电路（102），输入前馈电路（120）和输出级（150）。 放大级（110）布置成接收差分输入对以生成放大的差分输入对。 输入前馈电路（120）耦合到级联电路（102），并且被布置用于将差分输入对向前馈送到级联电路（102）。 输出级（150）耦合到放大级（110）和级联电路（102），并且被布置用于根据放大的差分输入对和级联电路（102）的输出来生成差分输出对。