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1. 发明申请

US20160316537A1 Low-Overhead Current Generator for Lighting Circuits 审中-公开
公开(公告)号：US20160316537A1
公开(公告)日：2016-10-27
申请号：US15201939
申请日：2016-07-05
申请人： Dialog Semiconductor (UK) Limited
发明人： Fulvio Schiappelli , Jiri Ledr , Alessandro Angeli , Andrea Acquas
IPC分类号： H05B33/08
CPC分类号： H05B33/0851 , H05B33/0812 , H05B33/0815 , H05B33/0824 , H05B33/0845 , Y02B20/347
摘要： This application relates to a lighting system comprising a plurality of light emitting diode, LED, circuits, and a power source for providing a drive voltage to the plurality of LED circuits. For each LED circuit, the lighting system comprises a first variable resistance element connected between the respective LED circuit and ground, and a first feedback circuit configured to control a voltage at a first node between the respective LED circuit and the respective first variable resistance element to a first voltage. The lighting system further comprises a current source and a second variable resistance element connected between the current source and ground, wherein each first variable resistance element is configured to attain a resistance value depending on a resistance value attained by the second variable resistance element.

2. 发明申请

US20160095181A1 Low-Overhead Current Generator for Lighting Circuits 有权
标题翻译：用于照明电路的低架空电流发生器
公开(公告)号：US20160095181A1
公开(公告)日：2016-03-31
申请号：US14644438
申请日：2015-03-11
申请人： Dialog Semiconductor (UK) Limited
发明人： Fulvio Schiappelli , Jiri Ledr , Alessandro Angeli , Andrea Acquas
IPC分类号： H05B33/08
CPC分类号： H05B33/0851 , H05B33/0812 , H05B33/0815 , H05B33/0824 , H05B33/0845 , Y02B20/347
摘要： This application relates to a lighting system comprising a plurality of light emitting diode, LED, circuits, and a power source for providing a drive voltage to the plurality of LED circuits. For each LED circuit, the lighting system comprises a first variable resistance element connected between the respective LED circuit and ground, and a first feedback circuit configured to control a voltage at a first node between the respective LED circuit and the respective first variable resistance element to a first voltage. The lighting system further comprises a current source and a second variable resistance element connected between the current source and ground, wherein each first variable resistance element is configured to attain a resistance value depending on a resistance value attained by the second variable resistance element.
摘要翻译：本申请涉及一种包括多个发光二极管，LED，电路和用于向多个LED电路提供驱动电压的电源的照明系统。对于每个LED电路，照明系统包括连接在相应的LED电路和地之间的第一可变电阻元件和第一反馈电路，其被配置为将各个LED电路和相应的第一可变电阻元件之间的第一节点处的电压控制到第一电压。照明系统还包括连接在电流源和地之间的电流源和第二可变电阻元件，其中每个第一可变电阻元件被配置为获得取决于由第二可变电阻元件获得的电阻值的电阻值。

3. 发明授权

US10298124B2 Hybrid DCDC power converter with increased efficiency 有权
公开(公告)号：US10298124B2
公开(公告)日：2019-05-21
申请号：US15692363
申请日：2017-08-31
申请人： Dialog Semiconductor (UK) Limited
发明人： Holger Petersen , Jiri Ledr
IPC分类号： H02M3/156 , H02M3/07 , H02M3/335 , H02M3/44 , H02M3/158 , H02M1/00
摘要： A power converter to convert power between a first converter voltage at a first converter port and a second converter voltage at a second converter port is presented. It contains a first capacitor network, an inductor and a first switching matrix to arrange the first capacitor network and the inductor within different states. One of the states is a bypass state enabling current to flow from the first converter port or from ground through the first capacitor network to the second converter port without going through the inductor. Another state is an inductor state enabling current to flow from the first converter port or from ground through the inductor to the second converter port. The power converter also includes a control unit to control the first switching matrix repeatedly in a recurrent sequence of the different states.

4. 发明申请

US20180175726A1 Hybrid DCDC Power Converter with Increased Efficiency 审中-公开
公开(公告)号：US20180175726A1
公开(公告)日：2018-06-21
申请号：US15692363
申请日：2017-08-31
申请人： Dialog Semiconductor (UK) Limited
发明人： Holger Petersen , Jiri Ledr
IPC分类号： H02M3/156 , H02M3/44 , H02M3/07 , H02M3/335
CPC分类号： H02M3/156 , H02M3/07 , H02M3/158 , H02M3/33569 , H02M3/44 , H02M2001/0003
摘要： A power converter to convert power between a first converter voltage at a first converter port and a second converter voltage at a second converter port is presented. It contains a first capacitor network, an inductor and a first switching matrix to arrange the first capacitor network and the inductor within different states. One of the states is a bypass state enabling current to flow from the first converter port or from ground through the first capacitor network to the second converter port without going through the inductor. Another state is an inductor state enabling current to flow from the first converter port or from ground through the inductor to the second converter port. The power converter also includes a control unit to control the first switching matrix repeatedly in a recurrent sequence of the different states.

5. 发明授权

US10340800B2 Short circuit protection for a power converter 有权
公开(公告)号：US10340800B2
公开(公告)日：2019-07-02
申请号：US15943811
申请日：2018-04-03
申请人： Dialog Semiconductor (UK) Limited
发明人： Jiri Ledr
IPC分类号： H02M3/158 , H02M1/32 , H02M1/00
摘要： A switched mode power converter is described, configured to convert electrical power between a first voltage at a first port and a second voltage at a second port, where the first and second voltages are relative to a reference potential. The power converter comprises an inductive element having a first side and a second side, where the first side of the inductive element is coupled to the first port. The power converter comprises a power switch configured to couple or to decouple the second side of the inductive element to or from the reference potential. The power converter comprises a capacitive element having a first side and a second side, where the first side of the capacitive element is coupled to the power switch and the second side of the capacitive element is coupled to the second port. The power converter comprises an auxiliary switch configured to couple or to decouple the second side of the capacitive element to or from the reference potential. The power converter comprises a control unit configured to control the power switch and the auxiliary switch in a repetitive manner to convert electrical power.

6. 发明申请

US20180294725A1 Short Circuit Protection for a Power Converter 审中-公开
公开(公告)号：US20180294725A1
公开(公告)日：2018-10-11
申请号：US15943811
申请日：2018-04-03
申请人： Dialog Semiconductor (UK) Limited
发明人： Jiri Ledr
IPC分类号： H02M3/158 , H02M1/32
CPC分类号： H02M3/1582 , H02M1/32 , H02M3/158 , H02M2001/0003
摘要： A switched mode power converter is described, configured to convert electrical power between a first voltage at a first port and a second voltage at a second port, where the first and second voltages are relative to a reference potential. The power converter comprises an inductive element having a first side and a second side, where the first side of the inductive element is coupled to the first port. The power converter comprises a power switch configured to couple or to decouple the second side of the inductive element to or from the reference potential. The power converter comprises a capacitive element having a first side and a second side, where the first side of the capacitive element is coupled to the power switch and the second side of the capacitive element is coupled to the second port. The power converter comprises an auxiliary switch configured to couple or to decouple the second side of the capacitive element to or from the reference potential. The power converter comprises a control unit configured to control the power switch and the auxiliary switch in a repetitive manner to convert electrical power.

7. 发明授权

US09532427B2 Low-overhead current generator for lighting circuits 有权
标题翻译：用于照明电路的低架空电流发生器
公开(公告)号：US09532427B2
公开(公告)日：2016-12-27
申请号：US15201939
申请日：2016-07-05
申请人： Dialog Semiconductor (UK) Limited
发明人： Fulvio Schiappelli , Jiri Ledr , Alessandro Angeli , Andrea Acquas
IPC分类号： H05B33/08
CPC分类号： H05B33/0851 , H05B33/0812 , H05B33/0815 , H05B33/0824 , H05B33/0845 , Y02B20/347
摘要： This application relates to a lighting system comprising a plurality of light emitting diode, LED, circuits, and a power source for providing a drive voltage to the plurality of LED circuits. For each LED circuit, the lighting system comprises a first variable resistance element connected between the respective LED circuit and ground, and a first feedback circuit configured to control a voltage at a first node between the respective LED circuit and the respective first variable resistance element to a first voltage. The lighting system further comprises a current source and a second variable resistance element connected between the current source and ground, wherein each first variable resistance element is configured to attain a resistance value depending on a resistance value attained by the second variable resistance element.
摘要翻译：本申请涉及一种包括多个发光二极管，LED，电路和用于向多个LED电路提供驱动电压的电源的照明系统。对于每个LED电路，照明系统包括连接在相应的LED电路和地之间的第一可变电阻元件和第一反馈电路，其被配置为将各个LED电路和相应的第一可变电阻元件之间的第一节点处的电压控制到第一电压。照明系统还包括连接在电流源和地之间的电流源和第二可变电阻元件，其中每个第一可变电阻元件被配置为获得取决于由第二可变电阻元件获得的电阻值的电阻值。

8. 发明授权

US09392661B2 Low-overhead current generator for lighting circuits 有权
公开(公告)号：US09392661B2
公开(公告)日：2016-07-12
申请号：US14644438
申请日：2015-03-11
申请人： Dialog Semiconductor (UK) Limited
发明人： Fulvio Schiappelli , Jiri Ledr , Alessandro Angeli , Andrea Acquas
IPC分类号： H05B33/08
CPC分类号： H05B33/0851 , H05B33/0812 , H05B33/0815 , H05B33/0824 , H05B33/0845 , Y02B20/347
摘要： This application relates to a lighting system comprising a plurality of light emitting diode, LED, circuits, and a power source for providing a drive voltage to the plurality of LED circuits. For each LED circuit, the lighting system comprises a first variable resistance element connected between the respective LED circuit and ground, and a first feedback circuit configured to control a voltage at a first node between the respective LED circuit and the respective first variable resistance element to a first voltage. The lighting system further comprises a current source and a second variable resistance element connected between the current source and ground, wherein each first variable resistance element is configured to attain a resistance value depending on a resistance value attained by the second variable resistance element.

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