-
公开(公告)号：US20120153918A1
公开(公告)日：2012-06-21
申请号：US13406416
申请日：2012-02-27
IPC分类号： G05F1/573
CPC分类号： H02M1/32 , H02H7/1225
摘要： The present invention relates to a protection circuit for protecting a half-bridge circuit. The protection circuit detects an incorrect response of the half-bridge by monitoring the current of a first switch at a series resistor of a second switch. The protection circuit has a detector for detecting the voltage across the resistor and an evaluation circuit which is designed in such a manner that it evaluates an output signal from the detector after the first switch has been switched on and provides a fault signal at an output when the voltage across the resistor is greater than the threshold voltage.
摘要翻译： 本发明涉及一种用于保护半桥电路的保护电路。 保护电路通过监视第二开关的串联电阻器上的第一开关的电流来检测半桥的不正确响应。 保护电路具有用于检测电阻器两端的电压的检测器和评估电路，其被设计成在第一开关被接通之后评估来自检测器的输出信号，并在输出端提供故障信号 电阻两端的电压大于阈值电压。
-
公开(公告)号：US08441240B2
公开(公告)日：2013-05-14
申请号：US13406416
申请日：2012-02-27
IPC分类号： G05F1/40
CPC分类号： H02M1/32 , H02H7/1225
摘要： The present invention relates to a protection circuit for protecting a half-bridge circuit. The protection circuit detects an incorrect response of the half-bridge by monitoring the current of a first switch at a series resistor of a second switch. The protection circuit has a detector for detecting the voltage across the resistor and an evaluation circuit which is designed in such a manner that it evaluates an output signal from the detector after the first switch has been switched on and provides a fault signal at an output when the voltage across the resistor is greater than the threshold voltage.
-
3.发明申请公开(公告)号：US20080265900A1
公开(公告)日：2008-10-30
申请号：US11863295
申请日：2007-09-28
IPC分类号： G01R31/00
CPC分类号： H05B41/2988
摘要： For monitoring the operation of a gas discharge lamp operated with an AC voltage, a lamp voltage signal is generated which is dependent on the voltage dropped across the gas discharge lamp during operation. Said lamp voltage signal is filtered with an attenuation that is different for a DC component and for a component having the frequency of the AC voltage, whereupon a positive and negative peak value of the filtered lamp voltage signal are determined. For monitoring the gas discharge lamp, an average value of the two peak values is determined and compared with a limit value, and a difference value between the two peak values is determined and compared with a limit value.
摘要翻译： 为了监测以交流电压工作的气体放电灯的操作，产生灯电压信号，这取决于在操作期间气体放电灯上的电压。 所述灯电压信号用对于DC分量和具有AC电压频率的分量的衰减进行滤波，由此确定经滤波的灯电压信号的正峰值和负峰值。 为了监视气体放电灯，确定两个峰值的平均值并将其与极限值进行比较，并且确定两个峰值之间的差值并将其与极限值进行比较。
-
公开(公告)号：US20200313727A1
公开(公告)日：2020-10-01
申请号：US16830751
申请日：2020-03-26
申请人： Doris KEITEL-SCHULZ , Renate Angelika MUEHLBAUER , Matthias SCHNEIDER , Qi ZHU , Dieter ZIPPRICK
发明人： Doris KEITEL-SCHULZ , Renate Angelika MUEHLBAUER , Matthias SCHNEIDER , Qi ZHU , Dieter ZIPPRICK
摘要： According to one embodiment a circuit comprises a supply pin configured to receive a supply voltage, a non-volatile memory for storing one or more parameters, and a Near Field Communication (NFC) transceiver that is configured to receive data representing the one or more parameters. The circuit is configured to deactivate the NFC transceiver in response to receiving the supply voltage at the supply pin.
-
公开(公告)号：US08125202B2
公开(公告)日：2012-02-28
申请号：US12195445
申请日：2008-08-21
IPC分类号： G05F1/40
CPC分类号： H02M1/32 , H02H7/1225
摘要： The present invention relates to a protection circuit for protecting a half-bridge circuit. The protection circuit detects an incorrect response of the half-bridge by monitoring the current of a first switch at a series resistor of a second switch.The protection circuit has a detector for detecting the voltage across the resistor and an evaluation circuit which is designed in such a manner that it evaluates an output signal from the detector after the first switch has been switched on and provides a fault signal at an output when the voltage across the resistor is greater than the threshold voltage.
摘要翻译： 本发明涉及一种用于保护半桥电路的保护电路。 保护电路通过监视第二开关的串联电阻器上的第一开关的电流来检测半桥的不正确响应。 保护电路具有用于检测电阻器两端的电压的检测器和评估电路，其被设计成在第一开关被接通之后评估来自检测器的输出信号，并在输出端提供故障信号 电阻两端的电压大于阈值电压。
-
6.发明授权公开(公告)号：US07812612B2
公开(公告)日：2010-10-12
申请号：US11863295
申请日：2007-09-28
CPC分类号： H05B41/2988
摘要： For monitoring the operation of a gas discharge lamp operated with an AC voltage, a lamp voltage signal is generated which is dependent on the voltage dropped across the gas discharge lamp during operation. The lamp voltage signal is filtered with an attenuation that is different for a DC component and for a component having the frequency of the AC voltage, whereupon a positive and negative peak value of the filtered lamp voltage signal are determined. For monitoring the gas discharge lamp, an average value of the two peak values is determined and compared with a limit value, and a difference value between the two peak values is determined and compared with a limit value.
摘要翻译： 为了监测以交流电压工作的气体放电灯的操作，产生灯电压信号，这取决于在操作期间气体放电灯上的电压。 灯电压信号用对于DC分量不同的衰减和具有AC电压频率的分量进行滤波，由此确定经滤波的灯电压信号的正和负峰值。 为了监视气体放电灯，确定两个峰值的平均值并将其与极限值进行比较，并且确定两个峰值之间的差值并将其与极限值进行比较。
-
公开(公告)号：US20090073729A1
公开(公告)日：2009-03-19
申请号：US12195445
申请日：2008-08-21
IPC分类号： H02H7/122
CPC分类号： H02M1/32 , H02H7/1225
摘要： The present invention relates to a protection circuit for protecting a half-bridge circuit. The protection circuit detects an incorrect response of the half-bridge by monitoring the current of a first switch at a series resistor of a second switch.The protection circuit has a detector for detecting the voltage across the resistor and an evaluation circuit which is designed in such a manner that it evaluates an output signal from the detector after the first switch has been switched on and provides a fault signal at an output when the voltage across the resistor is greater than the threshold voltage.
摘要翻译： 本发明涉及一种用于保护半桥电路的保护电路。 保护电路通过监视第二开关的串联电阻器上的第一开关的电流来检测半桥的不正确响应。 保护电路具有用于检测电阻器两端的电压的检测器和评估电路，其被设计成在第一开关被接通之后评估来自检测器的输出信号，并在输出端提供故障信号 电阻两端的电压大于阈值电压。
-
-
-
-
-
-
搜索结果
7 条记录 (耗时 0.011 秒)
