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公开(公告)号：US20150181669A1
公开(公告)日：2015-06-25
申请号：US14564659
申请日：2014-12-09
Applicant: NXP B.V.
Inventor： Leendert van den Broeke , Bobby Jacob Daniel
IPC: H05B33/08
CPC classification number: H05B33/0815 , H05B33/0845
Abstract: A bleeder circuit controller (11) configured to control a bipolar junction transistor (10) having a collector (12) configured to be connected to an output of a phase cut dimmer (2) for receiving a bleed current, an emitter (13) for connecting to ground and a base (14), the bleeder circuit controller configured to generate a control signal for controlling the bleed current through the bipolar junction transistor (10) and measure a signal indicative of the current flow through the dimmer (2) and apply a current limit to a base-emitter current flow as a function of the measured signal.
Abstract translation: 一种放电电路控制器（11），被配置为控制具有集电极（12）的双极结型晶体管（10），该集电极（12）被配置为连接到用于接收泄放电流的相位切割调光器（2）的输出端，发射器（13） 连接到地和基座（14），所述泄放电路控制器被配置为产生用于控制通过所述双极结晶体管（10）的泄放电流的控制信号，并测量指示通过所述调光器（2）的电流的信号并施加 作为测量信号的函数的基极 - 发射极电流的电流限制。
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公开(公告)号：US09743468B2
公开(公告)日：2017-08-22
申请号：US14707481
申请日：2015-05-08
Applicant: NXP B.V.
Inventor： Joan Wichard Strijker , Leendert van den Broeke
IPC: H05B33/08 , H01L29/06 , H01L27/02 , H01L29/74 , H01L29/732 , H01L29/861 , H01L49/02 , H02M7/217 , H01L29/87
CPC classification number: H05B33/0815 , H01L27/0255 , H01L27/0259 , H01L27/0262 , H01L27/0288 , H01L28/20 , H01L29/0638 , H01L29/0684 , H01L29/732 , H01L29/74 , H01L29/861 , H01L29/87 , H02M7/217
Abstract: The disclosure relates to a controller (606) for a switched mode power supply, SMPS (600), comprising: a switch toggling unit (670) having a first switching mode and a second switching mode, wherein the first switching mode is a continuous conduction mode or a boundary conduction mode and the second conduction mode is a discontinuous conduction mode; and a switch mode selector (676) configured to set the switching mode of the switch toggling unit (670) in accordance with a current in an inductor (602) of the SMPS (600).
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公开(公告)号：US20170006675A1
公开(公告)日：2017-01-05
申请号：US15181730
申请日：2016-06-14
Applicant: NXP B.V.
Inventor： Leendert van den Broeke , Tobias Doorn
CPC classification number: H05B33/0815 , H02M1/08 , H02M1/14 , H02M1/42 , H02M7/04 , H02M2001/0009 , H05B33/0848 , H05B33/0851
Abstract: A filter circuit comprising a first feedback circuit configured to: receive a sensed-voltage-level-signal representative of a sensed voltage across a current sensing element receive a voltage-set-point-signal; and set a regulation-control-signal for a current regulation device such that the sensed-voltage-level-signal tends towards the voltage-set-point-signal. The filter circuit also comprises a second feedback circuit configured to: receive a predetermined-threshold-signal; and receive a regulation-control-voltage-signal, representative of a voltage level of the regulation-control-signal. The second feedback circuit is configured to adjust the voltage-set-point-signal in accordance with a comparison between the regulation-control-voltage-signal and the predetermined-threshold-signal.
Abstract translation: 一种滤波器电路，包括第一反馈电路，其被配置为：接收代表电流感测元件的感测电压的感测电压电平信号，接收电压设定点信号; 并设置用于电流调节装置的调节控制信号，使得感测的电压电平信号趋向于电压设定点信号。 滤波器电路还包括第二反馈电路，其被配置为：接收预定阈值信号; 并接收表示调节控制信号的电压电平的调节控制电压信号。 第二反馈电路被配置为根据调节控制电压信号和预定阈值信号之间的比较来调整电压设定点信号。
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4.发明申请公开(公告)号：US20150359053A1
公开(公告)日：2015-12-10
申请号：US14714059
申请日：2015-05-15
Applicant: NXP B.V.
Inventor： Leendert van den Broeke
IPC: H05B33/08
CPC classification number: H05B33/0815 , H05B33/0812 , H05B33/0845
Abstract: Lighting circuits and luminaires and methods are disclosed which are operable with a phase-cut dimmer, each circuit comprising a rectifier having a low side output and a high side output; a switched mode converter comprising a switch and an inductor, having a high side input connected to a bus rail, and having a configuration to draw current across a complete mains cycle; a controller for the switched mode converter; a filter circuit connected between the rectifier high side output and the bus rail and comprising a capacitor connected between the high side output of the mains rectifier and ground; and a resistance connected between the low side output of the rectifier and ground. The value of the resistance may be such the RC time constant of the resistor and filter circuit is greater than the time required for any ringing in the circuit to fall to no more than 20 mA.
Abstract translation: 公开了可用相位调光器操作的照明电路和灯具和方法，每个电路包括具有低侧输出和高侧输出的整流器; 一种包括开关和电感器的开关模式转换器，具有连接到总线轨道的高侧输入，并且具有在整个电源周期内牵引电流的配置; 用于开关模式转换器的控制器; 连接在整流器高压侧输出与母线之间的滤波电路，包括连接在电源整流器的高侧输出与地之间的电容器; 以及连接在整流器的低压侧输出与地之间的电阻。 电阻的值可能是电阻和滤波器电路的RC时间常数大于电路中任何振铃所需的时间降至不大于20 mA。
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Patent Agency Ranking
公开(公告)号：US20150359052A1
公开(公告)日：2015-12-10
申请号：US14713982
申请日：2015-05-15
Applicant: NXP B.V.
Inventor： Leendert van den Broeke , Ewold van Geffen , Frank Schoofs
CPC classification number: H05B33/0815 , H02M3/156 , H02M3/33507 , H05B33/0845 , Y02B20/346
Abstract: A switched mode power supply comprising: a rectified voltage terminal and a rectified ground terminal for receiving a phase-cut rectified voltage; a power switch and an inductive element connected in series between the rectified voltage terminal and the rectified ground terminal; a switch controller having a floating ground terminal and a dimming input terminal, wherein the dimming input terminal is for receiving a dimming voltage signal indicative of a required dimming level, wherein the switch controller is configured to control the switch in accordance with the dimming voltage signal and wherein the inductive element is connected between the rectified ground terminal and the floating ground terminal; and a dimming level controller configured to set the dimming voltage signal in accordance with the rectified phase-cut voltage with respect to the floating ground terminal.
Abstract translation: 一种开关电源，包括：整流电压端子和整流接地端子，用于接收相切整流电压; 串联在整流电压端子和整流接地端子之间的电源开关和电感元件; 具有浮动接地端子和调光输入端子的开关控制器，其中所述调光输入端子用于接收指示所需调光电平的调光电压信号，其中所述开关控制器被配置为根据所述调光电压信号 并且其中所述电感元件连接在所述整流的接地端子和所述浮置接地端子之间; 以及调光电平控制器，被配置为根据相对于浮动接地端子的整流相切电压来设置调光电压信号。
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公开(公告)号：US20150334795A1
公开(公告)日：2015-11-19
申请号：US14707481
申请日：2015-05-08
Applicant: NXP B.V.
Inventor： Joan Wichard Strijker , Leendert van den Broeke
CPC classification number: H05B33/0815 , H01L27/0255 , H01L27/0259 , H01L27/0262 , H01L27/0288 , H01L28/20 , H01L29/0638 , H01L29/0684 , H01L29/732 , H01L29/74 , H01L29/861 , H01L29/87 , H02M7/217
Abstract: The disclosure relates to a controller (606) for a switched mode power supply, SMPS (600), comprising: a switch toggling unit (670) having a first switching mode and a second switching mode, wherein the first switching mode is a continuous conduction mode or a boundary conduction mode and the second conduction mode is a discontinuous conduction mode; and a switch mode selector (676) configured to set the switching mode of the switch toggling unit (670) in accordance with a current in an inductor (602) of the SMPS (600).
Abstract translation: 本发明涉及一种用于开关式电源SMPS（600）的控制器（606），包括：开关切换单元（670），具有第一开关模式和第二开关模式，其中第一开关模式是连续导通 模式或边界传导模式，第二导通模式是不连续导通模式; 和配置成根据SMPS（600）的电感器（602）中的电流设置开关切换单元（670）的开关模式的开关模式选择器（676）。
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公开(公告)号：US20150173144A1
公开(公告)日：2015-06-18
申请号：US14553777
申请日：2014-11-25
Applicant: NXP B.V.
Inventor： Leendert van den Broeke , Robert de Nie
IPC: H05B33/08
CPC classification number: H05B33/0815 , H05B33/0809 , H05B33/0845 , Y02B20/346
Abstract: In an example embodiment, a controller generates a switch signal for controlling a switch to convert an input signal from a phase cut dimmer into a driving signal for a solid state lighting element. The controller determines a conduction period of the input signal from the phase cut dimmer within a half cycle period of the input signal, determines a burst period within the conduction period is a period of time less than the conduction period, and generates a switch signal comprising a plurality of switching cycles over the burst period. The switch signal has first and second subsets of switching cycles. The controller controls the switching cycles of the second subset such that the average energy transferred per switching cycle to the driving signal is less than the average energy transferred per switching cycle to the driving signal for the switching cycles of the first subset.
Abstract translation: 在示例性实施例中，控制器产生用于控制开关以将来自相位切割调光器的输入信号转换为用于固态照明元件的驱动信号的开关信号。 控制器在输入信号的半周期内确定来自相位切割调光器的输入信号的导通周期，确定导通周期内的脉冲串周期是小于导通周期的时间段，并且产生包括 在突发周期内的多个开关周期。 开关信号具有开关周期的第一和第二子集。 控制器控制第二子集的开关周期，使得每个开关周期传递到驱动信号的平均能量小于每个开关周期传递到第一子集的开关周期的驱动信号的平均能量。
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公开(公告)号：US09867240B2
公开(公告)日：2018-01-09
申请号：US15181730
申请日：2016-06-14
Applicant: NXP B.V.
Inventor： Leendert van den Broeke , Tobias Doom
CPC classification number: H05B33/0815 , H02M1/08 , H02M1/14 , H02M1/42 , H02M7/04 , H02M2001/0009 , H05B33/0848 , H05B33/0851
Abstract: A filter circuit comprising a first feedback circuit configured to: receive a sensed-voltage-level-signal representative of a sensed voltage across a current sensing element; receive a voltage-set-point-signal; and set a regulation-control-signal for a current regulation device such that the sensed-voltage-level-signal tends towards the voltage-set-point-signal. The filter circuit also comprises a second feedback circuit configured to: receive a predetermined-threshold-signal; and receive a regulation-control-voltage-signal, representative of a voltage level of the regulation-control-signal. The second feedback circuit is configured to adjust the voltage-set-point-signal in accordance with a comparison between the regulation-control-voltage-signal and the predetermined-threshold-signal.
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公开(公告)号：US20150373790A1
公开(公告)日：2015-12-24
申请号：US14722972
申请日：2015-05-27
Applicant: NXP B.V.
Inventor： Hendrik Boswinkel , Leendert van den Broeke
CPC classification number: H05B33/083 , H05B33/0827 , H05B33/0845 , H05B33/0857 , H05B33/086 , H05B37/0272
Abstract: A circuit and lighting unit for dimmable lighting applications are disclosed, the circuit comprising: a controllable current supply having a positive output and a negative output and being for supplying current to at most one of a first path and a second path, the first and second path each comprising, in use, a series arrangement of a switch and an LED string; the switches each having a respective input, output, and control terminal, the respective inputs being connected in common to a one of the outputs of the controllable current supply, and an open/closed switching status of each switch being selectable by a respective switching signal at its respective control terminal; wherein the second path switch control terminal is electrically coupled to the first path switch output such that the second switching signal is inverted relative to the first switching signal.
Abstract translation: 公开了一种用于可调光照明应用的电路和照明单元，该电路包括：具有正输出和负输出的可控电流源，用于向第一路径和第二路径中的至少一个提供电流，第一和第二 在使用中，每个路径包括开关和LED串的串联布置; 开关各自具有相应的输入，输出和控制端子，各个输入端共同连接到可控电流源的输出之一，每个开关的开/关开关状态可由相应的开关信号选择 在其各自的控制终端; 其中所述第二路径开关控制端子电耦合到所述第一路径开关输出，使得所述第二开关信号相对于所述第一开关信号反相。
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