公开(公告)号：US09331671B2

公开(公告)日：2016-05-03

申请号：US14283043

申请日：2014-05-20

Applicant: STMICROELECTRONICS INTERNATIONAL N.V.

Inventor： Nitin Gupta ,  Paramjeet Singh Sahni ,  Tapas Nandy ,  Manish Garg

IPC: H04B3/00 ,  H04L25/00 ,  H03K3/01 ,  H04N5/44 ,  H04N5/63 ,  H03K19/0185

CPC classification number: H03K3/01 ,  H03K19/018528 ,  H04N5/44 ,  H04N5/63

Abstract: A power harvesting circuit includes a new transmitter topology that ensures that no junction of thin oxide transistors forming the power harvesting circuit will experience a voltage across junctions of the transistors that is more than a maximum tolerable junction voltage. A supplemental power feed circuit operates to provide a supplemental feed current to components in a transmitter circuit when power harvested from a receiver circuit is insufficient to adequately power these components of the transmitter circuit, which may occur during high frequency operation of communications channels coupling the transmitter and receiver circuits. The supplemental power feed circuit also operates to sink a shunt current when power harvested from the receiver circuit is more than is needed to power the components in the transmitter circuit.

Abstract translation: 功率收集电路包括新的发射机拓扑结构，其确保形成功率收集电路的薄氧化物晶体管的结不会经受超过最大可容忍结电压的晶体管结的电压。 补充供电电路用于在从接收器电路收集的功率不足以对发射机电路的这些组件充分供电时，向发射机电路中的组件提供补充馈电电流，这可能在耦合发射机的通信信道的高频操作期间发生 和接收器电路。 当从接收器电路收集的功率大于为发射机电路中的组件供电所需的功率时，辅助馈电电路还用于吸收分流电流。