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1. 发明公开

EP0688077A3 Power delivery circuit with current sensing 失效转让
标题翻译：功率输送电路与电流传感
公开(公告)号：EP0688077A3
公开(公告)日：1996-06-05
申请号：EP95202401.6
申请日：1990-05-08
申请人： UNITED TECHNOLOGIES AUTOMOTIVE, Inc.
发明人： Juzswik, David L. , Wrenbeck, Bruce R.
IPC分类号： H02H7/085 , H02P7/00
CPC分类号： H02P29/027 , H02H7/0838 , H02P7/04 , H03K17/0822
摘要： A power delivery circuit for supplying load current to a load includes a current switch connected on the high potential side of a load. In order to detect a current condition, such as an over-current condition in the load, a current sensing and detection circuit preferably cooperates with the current switch wherein such switch comprises a multicellular device with a plurality of terminals. Such terminals include a first main current terminal connected to a source of high potential, a second main current terminal connecting a majority of device cells to the load, a first auxiliary terminal connected at one end to a minority of device cells so as to provide a current generally proportional to the main device current, and a second auxiliary terminal connected at one end to a majority of device cells. The current detection circuit preferably comprises one branch connected between the first auxiliary terminal and ground and including, in serial circuit, a current-to-voltage converting resistor providing a voltage at one end approximately proportional to the main device current and a bias signal-controlled transimpedance device, and another branch connected between the second auxiliary terminal and ground and providing a bias signal for the transimpedance device in the first branch. In another embodiment, the first branch includes at least two transistors and a resistor serially connected between a current sense terminal of the MOSFET and a reference potential. The second branch also includes at least two serially connected transistors connected between a terminal of the MOSFET and the reference potential. The transistors ore cross-connected between branches and provide an inverted current mirror and a current mirror. Fifth and sixth transistors may also be included as part of the current sensing circuit.

2. 发明公开

EP0397102A2 Power delivery circuit with current sensing 失效
标题翻译： Schaltung zur Leistungsabgabe mit Stromerfassung。
公开(公告)号：EP0397102A2
公开(公告)日：1990-11-14
申请号：EP90108641.3
申请日：1990-05-08
申请人： UNITED TECHNOLOGIES AUTOMOTIVE, Inc.
发明人： Juzswik, David L. , Wrenbeck, Bruce R.
IPC分类号： H02P7/00 , H02H7/085
CPC分类号： H02P29/027 , H02H7/0838 , H02P7/04 , H03K17/0822
摘要： A power delivery circuit for supplying load current to a load includes a current switch connected on the high potential side of a load. In order to detect a current condition, such as an over-current condition in the load, a current sensing and detection circuit preferably cooperates with the current switch wherein such switch comprises a multicellular device with a plurality of terminals. Such terminals include a first main current terminal connected to a source of high potential, a second main current terminal connecting a majority of device cells to the load, a first auxiliary terminal connected at one end to a minority of device cells so as to provide a current generally proportional to the main device current, and a second auxiliary terminal connected at one end to a majority of device cells. The current detection circuit preferably comprises one branch connected between the first auxiliary terminal and ground and including, in serial circuit, a current-to-voltage converting resistor providing a voltage at one end approximately proportional to the main device current and a bias signal-controlled transimpedance device, and another branch connected between the second auxiliary terminal and ground and providing a bias signal for the transimpedance device in the first branch. In another embodiment, the first branch includes at least two transistors and a resistor serially connected between a current sense terminal of the MOSFET and a reference potential. The second branch also includes at least two serially connected transistors connected between a terminal of the MOSFET and the reference potential. The transistors are cross-connected between branches and provide an inverted current mirror and a current mirror. Fifth and sixth transistors may also be included as part of the current sensing circuit.
摘要翻译：用于向负载提供负载电流的电力输送电路包括连接在负载的高电位侧的电流开关。为了检测诸如负载中的过电流状况的电流状况，电流检测和检测电路优选地与电流开关配合，其中这种开关包括具有多个端子的多细胞器件。这种端子包括连接到高电位源的第一主电流端子，将大部分器件单元连接到负载的第二主电流端子，一端连接到少数器件单元的第一辅助端子，以便提供电流通常与主器件电流成比例，而第二辅助端子在一端连接到大多数器件单元。电流检测电路优选地包括连接在第一辅助端子和地之间的一个分支，并且在串联电路中包括电流 - 电压转换电阻，其在一端提供大致与主器件电流成比例的电压，以及偏置信号控制连接在第二辅助端子和地之间的另一个分支，并为第一分支中的跨阻抗装置提供偏置信号。在另一个实施例中，第一分支包括至少两个晶体管和串联连接在MOSFET的电流感测端子和参考电位之间的电阻器。第二分支还包括连接在MOSFET的端子和参考电位之间的至少两个串联连接的晶体管。晶体管在分支之间交叉连接，并提供反向电流镜和电流镜。第五和第六晶体管也可以包括在电流检测电路的一部分中。

3. 发明公开

EP0397102A3 Power delivery circuit with current sensing 失效
标题翻译：电流传感电路与电流传感
公开(公告)号：EP0397102A3
公开(公告)日：1991-01-16
申请号：EP90108641.3
申请日：1990-05-08
申请人： UNITED TECHNOLOGIES AUTOMOTIVE, Inc.
发明人： Juzswik, David L. , Wrenbeck, Bruce R.
IPC分类号： H02P7/00 , H02H7/085
CPC分类号： H02P29/027 , H02H7/0838 , H02P7/04 , H03K17/0822
摘要： A power delivery circuit for supplying load current to a load includes a current switch connected on the high potential side of a load. In order to detect a current condition, such as an over-current condition in the load, a current sensing and detection circuit preferably cooperates with the current switch wherein such switch comprises a multicellular device with a plurality of terminals. Such terminals include a first main current terminal connected to a source of high potential, a second main current terminal connecting a majority of device cells to the load, a first auxiliary terminal connected at one end to a minority of device cells so as to provide a current generally proportional to the main device current, and a second auxiliary terminal connected at one end to a majority of device cells. The current detection circuit preferably comprises one branch connected between the first auxiliary terminal and ground and including, in serial circuit, a current-to-voltage converting resistor providing a voltage at one end approximately proportional to the main device current and a bias signal-controlled transimpedance device, and another branch connected between the second auxiliary terminal and ground and providing a bias signal for the transimpedance device in the first branch. In another embodiment, the first branch includes at least two transistors and a resistor serially connected between a current sense terminal of the MOSFET and a reference potential. The second branch also includes at least two serially connected transistors connected between a terminal of the MOSFET and the reference potential. The transistors are cross-connected between branches and provide an inverted current mirror and a current mirror. Fifth and sixth transistors may also be included as part of the current sensing circuit.

4. 发明公开

EP0688077A2 Power delivery circuit with current sensing 失效转让
标题翻译： Schaltung zur Leistungsabgabe mit Stromerfassung
公开(公告)号：EP0688077A2
公开(公告)日：1995-12-20
申请号：EP95202401.6
申请日：1990-05-08
申请人： UNITED TECHNOLOGIES AUTOMOTIVE, Inc.
发明人： Juzswik, David L. , Wrenbeck, Bruce R.
IPC分类号： H02H7/085 , H02P7/00
CPC分类号： H02P29/027 , H02H7/0838 , H02P7/04 , H03K17/0822
摘要： A power delivery circuit for supplying load current to a load includes a current switch connected on the high potential side of a load. In order to detect a current condition, such as an over-current condition in the load, a current sensing and detection circuit preferably cooperates with the current switch wherein such switch comprises a multicellular device with a plurality of terminals. Such terminals include a first main current terminal connected to a source of high potential, a second main current terminal connecting a majority of device cells to the load, a first auxiliary terminal connected at one end to a minority of device cells so as to provide a current generally proportional to the main device current, and a second auxiliary terminal connected at one end to a majority of device cells. The current detection circuit preferably comprises one branch connected between the first auxiliary terminal and ground and including, in serial circuit, a current-to-voltage converting resistor providing a voltage at one end approximately proportional to the main device current and a bias signal-controlled transimpedance device, and another branch connected between the second auxiliary terminal and ground and providing a bias signal for the transimpedance device in the first branch. In another embodiment, the first branch includes at least two transistors and a resistor serially connected between a current sense terminal of the MOSFET and a reference potential. The second branch also includes at least two serially connected transistors connected between a terminal of the MOSFET and the reference potential. The transistors ore cross-connected between branches and provide an inverted current mirror and a current mirror. Fifth and sixth transistors may also be included as part of the current sensing circuit.
摘要翻译：用于向负载提供负载电流的电力输送电路包括连接在负载的高电位侧的电流开关。为了检测诸如负载中的过电流状况的电流状况，电流检测和检测电路优选地与电流开关配合，其中这种开关包括具有多个端子的多细胞器件。这种端子包括连接到高电位源的第一主电流端子，将大部分器件单元连接到负载的第二主电流端子，一端连接到少数器件单元的第一辅助端子，以便提供电流通常与主器件电流成比例，而第二辅助端子在一端连接到大多数器件单元。电流检测电路优选地包括连接在第一辅助端子和地之间的一个分支，并且在串联电路中包括电流 - 电压转换电阻，其在一端提供大致与主器件电流成比例的电压，以及偏置信号控制连接在第二辅助端子和地之间的另一个分支，并为第一分支中的跨阻抗装置提供偏置信号。在另一个实施例中，第一分支包括至少两个晶体管和串联连接在MOSFET的电流感测端子和参考电位之间的电阻器。第二分支还包括连接在MOSFET的端子和参考电位之间的至少两个串联连接的晶体管。晶体管在分支之间交叉连接，并提供反向电流镜和电流镜。第五和第六晶体管也可以包括在电流检测电路的一部分中。

5. 发明授权

EP0397102B1 Power delivery circuit with current sensing 失效
标题翻译：功率输送电路与电流传感
公开(公告)号：EP0397102B1
公开(公告)日：1996-04-17
申请号：EP90108641.3
申请日：1990-05-08
申请人： UNITED TECHNOLOGIES AUTOMOTIVE, Inc.
发明人： Juzswik, David L. , Wrenbeck, Bruce R.
IPC分类号： H02P7/00 , H02H7/085
CPC分类号： H02P29/027 , H02H7/0838 , H02P7/04 , H03K17/0822

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