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1. 发明授权

US08885310B2 Gate driver with desaturation detection and active clamping 有权
标题翻译：门极驱动器，具有去饱和检测和主动钳位
公开(公告)号：US08885310B2
公开(公告)日：2014-11-11
申请号：US13665518
申请日：2012-10-31
申请人： Ibrahim S. Kandah
发明人： Ibrahim S. Kandah
IPC分类号： H02H3/08 , H03K17/687
CPC分类号： H03K17/0826
摘要： Apparatus, systems, and methods are provided for protecting a switching device using a gate driver device. An exemplary gate driver system includes an interface for coupling to a switching device, a desaturation detection arrangement coupled to the interface to detect a desaturation condition based on an electrical characteristic at the interface, and a deactivation arrangement coupled to the interface to deactivate the switching device in a manner that is influenced by the electrical characteristic at the interface. In one embodiment, the switching device is deactivated by providing a deactivation current to a control terminal of the switching device and adjusting the deactivation current based on an electrical characteristic at the interface.
摘要翻译：提供了使用栅极驱动器装置来保护开关装置的装置，系统和方法。示例性的栅极驱动器系统包括用于耦合到开关装置的接口，耦合到接口的基于电接口的电气特征的去饱和状态的去饱和检测装置，以及耦合到接口以去激活开关装置的去激活装置以受界面电特性影响的方式。在一个实施例中，通过向切换设备的控制终端提供去激活电流并基于接口处的电特性来调整去激活电流来停用开关设备。

2. 发明授权

US09664729B2 Apparatus and method for monitoring operation of an insulated gate bipolar transistor 有权
公开(公告)号：US09664729B2
公开(公告)日：2017-05-30
申请号：US13882710
申请日：2013-01-09
申请人： Randall C. Gray , Ibrahim S. Kandah , Philipe J. Perruchoud , John M. Pigott , Thierry Sicard
发明人： Randall C. Gray , Ibrahim S. Kandah , Philipe J. Perruchoud , John M. Pigott , Thierry Sicard
IPC分类号： G01R31/02 , G01R31/26 , G01R31/327 , H01H9/00
CPC分类号： G01R31/2608 , G01R31/261 , G01R31/3274 , H01H9/00
摘要： Operation of an insulated gate bipolar transistor (IGBT) is monitored by an apparatus that has a capacitor connected between a collector of the IGBT and an input node. A processing circuit, coupled to the input node, responds to current flowing through the capacitor by providing an indication whether a voltage level at the collector is changing and the rate of that change. The processing circuit also employs the capacitor current to provide an output voltage that indicates the voltage at the IGBT collector.

3. 发明授权

US09331478B2 Methods and circuits for reverse battery protection 有权
标题翻译：反向电池保护的方法和电路
公开(公告)号：US09331478B2
公开(公告)日：2016-05-03
申请号：US14222925
申请日：2014-03-24
申请人： Thomas J. Reiter , Ibrahim S. Kandah
发明人： Thomas J. Reiter , Ibrahim S. Kandah
IPC分类号： H02H3/00 , H02H11/00
CPC分类号： H02H11/002
摘要： A circuit is configured for providing reverse battery protection. The circuit includes a load driver circuit having at least a first half-bridge circuit with topside and bottomside transistors coupled at a midpoint node by a first current terminal of both the topside and bottomside transistors. A second current terminal of the bottomside transistor is coupled to a voltage common node. The circuit also includes: a reverse battery protection transistor having a first current terminal coupled to a battery supply node and a second current terminal coupled to a second current terminal of the topside transistor; a bootstrap capacitor having a first terminal coupled to a the midpoint node between the topside and bottomside transistors of the first half-bridge circuit; and a diode having an anode coupled to a second terminal of the bootstrap capacitor and a cathode coupled to a control terminal of the reverse battery protection transistor.
摘要翻译：电路配置为提供反向电池保护。该电路包括具有至少第一半桥电路的负载驱动器电路，其中顶侧和底侧晶体管由中间点节点由顶侧和底侧晶体管的第一电流端子耦合。底部晶体管的第二电流端子耦合到电压公共节点。电路还包括：反向电池保护晶体管，其具有耦合到电池供应节点的第一电流端子和耦合到顶侧晶体管的第二电流端子的第二电流端子; 自举电容器，其具有耦合到所述第一半桥电路的顶侧和底部晶体管之间的中点节点的第一端子; 以及二极管，其具有耦合到所述自举电容器的第二端子的阳极和耦合到所述反向电池保护晶体管的控制端子的阴极。

4. 发明授权

US06798152B2 Closed loop current control circuit and method thereof 有权
公开(公告)号：US06798152B2
公开(公告)日：2004-09-28
申请号：US10224817
申请日：2002-08-21
申请人： Alan Michael Rooke , Ibrahim S. Kandah
发明人： Alan Michael Rooke , Ibrahim S. Kandah
IPC分类号： H05B3702
CPC分类号： H05B33/0815 , H05B33/0818 , H05B33/0827 , Y02B20/347
摘要： A circuit and method for providing closed loop control using constant current switching techniques is disclosed herein. By controlling the current supplied to high intensity light emitting diodes (LEDs) using the techniques and circuits described, high intensity LEDs can be operated at or near their maximum capacity without danger of overloading the LEDs, and without using excess amounts of current. A circuit as described herein, has multiple high side switches, each of which is connected to an LED array. The LED arrays are in turn connected through an inductor to a current switching control section that switches current to ground, or recirculates the current to maintain LED current flow within a desired range.

5. 发明申请

US20150061750A1 Method and Circuit for Controlling Turnoff of a Semiconductor Switching Element 有权
标题翻译：用于控制半导体开关元件的截止的方法和电路
公开(公告)号：US20150061750A1
公开(公告)日：2015-03-05
申请号：US14016080
申请日：2013-08-31
申请人： IBRAHIM S. KANDAH , FRED T. BRAUCHLER , STEVEN R. EVERSON
发明人： IBRAHIM S. KANDAH , FRED T. BRAUCHLER , STEVEN R. EVERSON
IPC分类号： H03K17/081
CPC分类号： H03K17/0822 , H03K17/0828 , H03K17/166 , H03K2217/0036
摘要： A circuit performs a method for controlling turn-off of a semiconductor switching element. The method includes determining at least one operating parameter for the semiconductor switching element during an operating cycle and determining a gate discharge current based on the at least one operating parameter. The method further includes supplying the gate discharge current to a gate of the semiconductor switching element during a subsequent operating cycle to turn off the semiconductor switching element.
摘要翻译：电路执行用于控制半导体开关元件的截止的方法。该方法包括在操作周期期间确定半导体开关元件的至少一个操作参数，并且基于至少一个操作参数确定栅极放电电流。该方法还包括在随后的操作周期期间将栅极放电电流提供给半导体开关元件的栅极以关断半导体开关元件。

6. 发明申请

US20150316602A1 APPARATUS AND METHOD FOR MONITORING OPERATION OF AN INSULATED GATE BIPOLAR TRANSISTOR 有权
标题翻译：用于监测绝缘栅双极晶体管运行的装置和方法
公开(公告)号：US20150316602A1
公开(公告)日：2015-11-05
申请号：US13882710
申请日：2013-01-09
申请人： RANDALL C. GRAY , IBRAHIM S. KANDAH , PHILIPE J. PERRUCHOUD , JOHN M. PIGOTT , THIERRY SICARD
发明人： RANDALL C. GRAY , IBRAHIM S. KANDAH , PHILIPE J. PERRUCHOUD , JOHN M. PIGOTT , THIERRY SICARD
IPC分类号： G01R31/26
CPC分类号： G01R31/2608 , G01R31/261 , G01R31/3274 , H01H9/00
摘要： Operation of an insulated gate bipolar transistor (IGBT) is monitored by an apparatus that has a capacitor connected between a collector of the IGBT and an input node. A processing circuit, coupled to the input node, responds to current flowing through the capacitor by providing an indication whether a voltage level at the collector is changing and the rate of that change. The processing circuit also employs the capacitor current to provide an output voltage that indicates the voltage at the IGBT collector.
摘要翻译：绝缘栅双极晶体管（IGBT）的工作由具有连接在IGBT的集电极和输入节点之间的电容器的装置来监视。耦合到输入节点的处理电路通过提供收集器上的电压电平是否正在改变以及该变化的速率的指示来响应流过电容器的电流。处理电路还采用电容器电流来提供指示IGBT集电极电压的输出电压。

7. 发明授权

US09172365B2 Method and circuit for controlling turnoff of a semiconductor switching element 有权
标题翻译：用于控制半导体开关元件的截止的方法和电路
公开(公告)号：US09172365B2
公开(公告)日：2015-10-27
申请号：US14016080
申请日：2013-08-31
申请人： Ibrahim S. Kandah , Fred T. Brauchler , Steven R. Everson
发明人： Ibrahim S. Kandah , Fred T. Brauchler , Steven R. Everson
IPC分类号： H03K17/04 , H03K17/082 , H03K17/16
CPC分类号： H03K17/0822 , H03K17/0828 , H03K17/166 , H03K2217/0036
摘要： A circuit performs a method for controlling turn-off of a semiconductor switching element. The method includes determining at least one operating parameter for the semiconductor switching element during an operating cycle and determining a gate discharge current based on the at least one operating parameter. The method further includes supplying the gate discharge current to a gate of the semiconductor switching element during a subsequent operating cycle to turn off the semiconductor switching element.
摘要翻译：电路执行用于控制半导体开关元件的截止的方法。该方法包括在操作周期期间确定半导体开关元件的至少一个操作参数，并且基于至少一个操作参数确定栅极放电电流。该方法还包括在随后的操作周期期间将栅极放电电流提供给半导体开关元件的栅极以关断半导体开关元件。

8. 发明申请

US20150270703A1 Methods and Circuits for Reverse Battery Protection 有权
标题翻译：反向电池保护的方法和电路
公开(公告)号：US20150270703A1
公开(公告)日：2015-09-24
申请号：US14222925
申请日：2014-03-24
申请人： Thomas J. Reiter , Ibrahim S. Kandah
发明人： Thomas J. Reiter , Ibrahim S. Kandah
IPC分类号： H02H7/18 , H02H9/00
CPC分类号： H02H11/002
摘要： A circuit is configured for providing reverse battery protection. The circuit includes a load driver circuit having at least a first half-bridge circuit with topside and bottomside transistors coupled at a midpoint node by a first current terminal of both the topside and bottomside transistors. A second current terminal of the bottomside transistor is coupled to a voltage common node. The circuit also includes: a reverse battery protection transistor having a first current terminal coupled to a battery supply node and a second current terminal coupled to a second current terminal of the topside transistor; a bootstrap capacitor having a first terminal coupled to a the midpoint node between the topside and bottomside transistors of the first half-bridge circuit; and a diode having an anode coupled to a second terminal of the bootstrap capacitor and a cathode coupled to a control terminal of the reverse battery protection transistor.
摘要翻译：电路配置为提供反向电池保护。该电路包括具有至少第一半桥电路的负载驱动器电路，其具有通过顶侧和底侧晶体管的第一电流端在中点节点处耦合的顶侧和底部晶体管。底部晶体管的第二电流端子耦合到电压公共节点。电路还包括：反向电池保护晶体管，其具有耦合到电池供应节点的第一电流端子和耦合到顶侧晶体管的第二电流端子的第二电流端子; 自举电容器，其具有耦合到所述第一半桥电路的顶侧和底部晶体管之间的中点节点的第一端子; 以及二极管，其具有耦合到所述自举电容器的第二端子的阳极和耦合到所述反向电池保护晶体管的控制端子的阴极。

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