公开(公告)号：US09219481B2

公开(公告)日：2015-12-22

申请号：US14615915

申请日：2015-02-06

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Mauro Scandiuzzo ,  Salvatore Valerio Cani ,  Claudio Mucci ,  Roberto Canegallo ,  Pier Luigi Rolandi

IPC: H03L5/00 ,  H03K19/0185 ,  H03K17/16

CPC classification number: H03K19/018507 ,  H03K17/16 ,  H03K19/018521 ,  Y10T29/49155

Abstract: An asynchronous level shifter electronic circuit including: a transmitter, which can be coupled to a first voltage and generates a communication signal; a receiver, which can be coupled to a second voltage; and a capacitive coupling stage, which receives the communication signal and supplies a corresponding filtered signal to the receiver. The receiver includes: a threshold device, which has an input terminal and an output terminal and switches an electrical quantity on the output terminal between a first value and a second value, as a function of corresponding transitions through a threshold of a first intermediate signal present on the input terminal, to generate a second intermediate signal; and a biasing circuit, which generates the first intermediate signal to have a d.c. component, which is a function of the second intermediate signal, and superposed on which is a variable component, which is a function of the filtered signal.

公开(公告)号：US08981830B2

公开(公告)日：2015-03-17

申请号：US13753390

申请日：2013-01-29

Applicant: STMicroelectronics S.r.l.

Inventor： Mauro Scandiuzzo ,  Salvatore Valerio Cani ,  Claudio Mucci ,  Roberto Canegallo ,  Pier Luigi Rolandi

IPC: H03L5/00 ,  H03K17/16 ,  H03K19/0185

CPC classification number: H03K19/018507 ,  H03K17/16 ,  H03K19/018521 ,  Y10T29/49155

Abstract: An asynchronous level shifter electronic circuit including: a transmitter, which can be coupled to a first voltage and generates a communication signal; a receiver, which can be coupled to a second voltage; and a capacitive coupling stage, which receives the communication signal and supplies a corresponding filtered signal to the receiver. The receiver includes: a threshold device, which has an input terminal and an output terminal and switches an electrical quantity on the output terminal between a first value and a second value, as a function of corresponding transitions through a threshold of a first intermediate signal present on the input terminal, to generate a second intermediate signal; and a biasing circuit, which generates the first intermediate signal to have a d.c. component, which is a function of the second intermediate signal, and superposed on which is a variable component, which is a function of the filtered signal.

Abstract translation: 一种异步电平移位器电子电路，包括：发射机，其可耦合到第一电压并产生通信信号; 接收器，其可以耦合到第二电压; 以及电容耦合级，其接收通信信号并将相应的滤波信号提供给接收器。 接收机包括：阈值装置，其具有输入端子和输出端子，并且在第一值和第二值之间切换输出端子上的电量，作为通过存在的第一中间信号的阈值的相应转换的函数 在所述输入端子上产生第二中间信号; 以及偏置电路，其产生具有直流的第一中间信号。 分量，其是第二中间信号的函数，并且叠加在其上，其是作为滤波信号的函数的可变分量。