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1. 发明授权

US12055568B2 Dual current sensing 有权
公开(公告)号：US12055568B2
公开(公告)日：2024-08-06
申请号：US17874163
申请日：2022-07-26
申请人： NXP USA, Inc.
发明人： Giuseppe Luciano
IPC分类号： G01R19/00
CPC分类号： G01R19/0092
摘要： Provided is a current-sensing circuit that includes a power-supply line providing electrical power to a high side of a load, a high-side field-effect transistor (FET) component between the power-supply line and the high side of the load, and a low-side FET component coupled to a low side of the load. Gate signals continually repeat a cycle that includes: a first part in which the high-side FET component is turned on and the low-side FET component is turned off, and a second part in which the high-side FET component is turned off and the low-side FET component is turned on. In addition, a single transconductance stage is configured to: input signals indicating a voltage drop across whichever one of the high-side FET component or the low-side FET component currently is on, and output a signal indicating a current flow that corresponds to such voltage drop.

2. 发明公开

US20240036086A1 DUAL CURRENT SENSING 审中-公开
公开(公告)号：US20240036086A1
公开(公告)日：2024-02-01
申请号：US17874163
申请日：2022-07-26
申请人： NXP USA, Inc.
发明人： Giuseppe Luciano
IPC分类号： G01R19/00
CPC分类号： G01R19/0092
摘要： Provided is a current-sensing circuit that includes a power-supply line providing electrical power to a high side of a load, a high-side field-effect transistor (FET) component between the power-supply line and the high side of the load, and a low-side FET component coupled to a low side of the load. Gate signals continually repeat a cycle that includes: a first part in which the high-side FET component is turned on and the low-side FET component is turned off, and a second part in which the high-side FET component is turned off and the low-side FET component is turned on. In addition, a single transconductance stage is configured to: input signals indicating a voltage drop across whichever one of the high-side FET component or the low-side FET component currently is on, and output a signal indicating a current flow that corresponds to such voltage drop.

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