专利检索 ap:("STMicroelectronics S.r.l.") AND inv:"Carlo Curina" 第 1 页

1.

发明授权
Transmitter circuit, corresponding isolated driver device, electronic system and method of encoding a pulse-width modulated signal into a differential pulsed signal 有权

公开(公告)号：US12015515B2

公开(公告)日：2024-06-18

申请号：US17845860

申请日：2022-06-21

申请人： STMicroelectronics S.r.l.

发明人： Valerio Bendotti , Nicola De Campo , Carlo Curina

IPC分类号： H04L27/36 , H03K17/687 , H03K19/096 , H03K19/21 , H04L25/40

CPC分类号： H04L27/36 , H03K17/687 , H03K19/096 , H03K19/21 , H04L25/40

摘要： A transmitter circuit receives a PWM input signal and a clock signal. A logic circuit generates a control signal as a function of the clock signal. The control signal is normally set to high, and is periodically set to low for a transmission time interval when an edge is detected in the clock signal. The transmission time interval is shorter than a half clock period of the clock signal. A tri-state transmitter receives the PWM input signal and the control signal, and produces first and a second output signals at first and second transmitter output nodes, respectively. The output signals have a voltage swing between a positive voltage and a reference voltage. An output control circuit is sensitive to the control signal and is coupled to the first and second transmitter output nodes.