公开(公告)号：US12034436B2

公开(公告)日：2024-07-09

申请号：US18143997

申请日：2023-05-05

Applicant: Vaxcel International Co., Ltd.

Inventor： Chia-Teh Chen

IPC: H03K17/13 ,  F21V3/00 ,  F21Y115/10 ,  H03K17/94 ,  H05B39/08 ,  H05B45/10 ,  H05B45/20 ,  H05B45/37 ,  H05B47/105 ,  H05B47/13 ,  H05B47/19

CPC classification number: H03K17/133 ,  H03K17/941 ,  H05B39/08 ,  H05B45/10 ,  H05B45/20 ,  H05B45/37 ,  H05B47/105 ,  H05B47/13 ,  H05B47/19 ,  F21V3/00 ,  F21Y2115/10 ,  Y02B20/40

Abstract: A color temperature switching scheme for an LED lighting device is disclosed. The color temperature switching scheme comprises a plurality of different color temperature performances correspondingly generated by a plurality of different paired combinations of a first electric power allocated to a first LED load emitting a light with a first color temperature and a second electric power allocated to a second LED load emitting a light with a second color temperature such that a mingled color temperature between the first color temperature and the second color temperature can be generated thru a light diffuser. For tuning the mingled color temperature of the LED lighting device a reverse yet complementary power adjustment process for distributing a total electric power T between the first LED circuit and the second LED circuit is required such that a total light intensity remains unchanged while the mingled color temperature is being adjusted.

公开(公告)号：US20190053354A1

公开(公告)日：2019-02-14

申请号：US16162460

申请日：2018-10-17

Applicant: CHIA-TEH CHEN

Inventor： CHIA-TEH CHEN

IPC: H05B37/02 ,  H03K17/13 ,  H05B33/08

CPC classification number: H05B37/0227 ,  F21V3/00 ,  F21Y2115/10 ,  H03K17/133 ,  H03K17/941 ,  H05B33/0815 ,  H05B33/0854 ,  H05B33/0863 ,  H05B37/0272 ,  H05B39/08 ,  Y02B20/44 ,  Y10T307/25 ,  Y10T307/766 ,  Y10T307/773 ,  Y10T307/826

Abstract: A method of a light color temperature switching control for an LED lamp includes using a first LED lighting load emitting a low color temperature light and a second LED lighting load emitting a high color temperature light, using a light diffuser covering the first LED lighting load and the second LED lighting load to create an effect of a mingled color temperature for the LED lamp, using a power switching circuitry to execute a power allocation algorithm to manage electric powers respectively delivered to the first LED lighting load and the second LED lighting load while keeping a total electric power delivered unchanged to control a diffused light with desired color temperatures. A light intensity of the LED lamp is also adjustable by keeping a ratio of electric power allocation between the first LED lighting load and the second LED lighting load without shifting the mingled color temperature.

公开(公告)号：US20170310313A1

公开(公告)日：2017-10-26

申请号：US15612998

申请日：2015-12-04

Applicant: Joulwatt Technology Inc. Limted

Inventor： Pitleong Wong ,  Yang Lu ,  Yue Ji ,  Yuancheng Ren ,  Xunwei Zhou

IPC: H03K5/1536 ,  H03K5/24 ,  G01R19/175 ,  H03K17/68 ,  H03K17/13

CPC classification number: H03K5/1536 ,  G01R19/0084 ,  G01R19/175 ,  H03K5/2454 ,  H03K5/2463 ,  H03K17/133 ,  H03K17/68 ,  H05B33/0815

Abstract: A circuit and a method for detecting a current zero-crossing point, and a circuit and method for detecting a load voltage are disclosed. The circuit for detecting current zero-crossing point includes: a load power supply circuit (14), a voltage-dividing resistor (16), a transistor switch (15), a zero-crossing detection circuit (19); the load power supply circuit (14) includes: a load (11), a diode (13), and an inductor (12); one end of the load power supply circuit (14) is connected with the operating voltage input terminal, the other end of the load power supply circuit (14) is connected with a first end of the transistor switch (15) and a first end of the voltage-dividing resistor (16), a second end of the voltage-dividing resistor (16) and a second end of the transistor switch (15) are connected with the ground, the load voltage is controlled by the transistor switch (15), the voltage-dividing terminal of the voltage-dividing resistor (16) is connected to a signal input terminal of the zero-crossing detection circuit (19), the zero-crossing detection circuit (19) is used to determine whether the current of the diode (13) crosses zero to obtain the on time of the diode (13), and the circuit for detecting load voltage uses the on time of the diode (13) and the on time of the transistor switch (15) to obtain the load voltage. The circuits are simple, but with high detection efficiency and low cost.

公开(公告)号：US20170264248A1

公开(公告)日：2017-09-14

申请号：US15510392

申请日：2015-09-10

Applicant: General Electric Company

Inventor： Ying MEI ,  Pengcheng ZHU ,  Juan Antonio SABATE ,  Song CHI ,  Ruxi WANG ,  Jianguo XIAO

IPC: H03F1/26 ,  H03F1/30 ,  G01R33/385 ,  H03F3/217

CPC classification number: H03F1/26 ,  G01R33/3852 ,  H03F1/303 ,  H03F1/523 ,  H03F3/2171 ,  H03F3/2173 ,  H03F2200/351 ,  H03K17/133

Abstract: A switching amplifier includes a plurality of cascade elements, each bridge circuit includes an inductive load coupled between a first leg terminal of one of the at least two leg circuits and a second leg terminal of another one of the at least two leg circuits. A first leg voltage of the first leg terminal have a phase shift relative to a second leg voltage of the second leg terminal, the phase shift is used for causing the inductive load to store electric energy and generating a minimum circulating current—I min or I min sufficient to effect conducting of a corresponding diode; each of the switches is configured to be turned on if the corresponding diode conducts current to effect zero voltage switching of the corresponding switch. The minimum circulating current—I min or I min is equal to a constant value.

公开(公告)号：US09602093B2

公开(公告)日：2017-03-21

申请号：US14836950

申请日：2015-08-26

Applicant: GREEN SOLUTION TECHNOLOGY CO., LTD.

Inventor： Li-Min Lee ,  Chao Shao

IPC: H03K5/24 ,  H03K5/1536 ,  H03K17/13

CPC classification number: H03K5/1536 ,  H03K5/24 ,  H03K5/2409 ,  H03K5/2418 ,  H03K17/13 ,  H03K17/133

Abstract: A zero-crossing voltage detection circuit for detecting a phase voltage of a converter includes a comparator, a first transistor and a second transistor. The first transistor has a first base, a first collector and a first emitter. The first base couples with the first collector. The first emitter receives the phase voltage. The first collector provides a first voltage to a first terminal of the comparator. The second transistor has a second base, a second collector and a second emitter. The second base couples with the first base. The second base couples with the second collector. The second emitter receives a ground voltage. The second collector provides a second voltage to a second terminal of the comparator. The comparator compares the first voltage with the second voltage to generate a zero-crossing voltage signal.

公开(公告)号：US20170012620A1

公开(公告)日：2017-01-12

申请号：US14806240

申请日：2015-07-22

Applicant: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD. ,  HON HAI PRECISION INDUSTRY CO., LTD.

Inventor： PO-JUNG CHEN ,  MENG-LIANG YANG

IPC: H03K17/284 ,  H03K5/13

CPC classification number: H03K17/284 ,  H03K5/1254 ,  H03K5/13 ,  H03K17/04106 ,  H03K17/04163 ,  H03K17/08122 ,  H03K17/133 ,  H03K17/223 ,  H03K2005/00013

Abstract: An expansion control circuit includes a delay circuit coupled to a first expansion module and a switching circuit coupled to a second expansion module. The switching circuit includes a buffer and a switching module. The buffer is coupled to the first expansion module. The first expansion module outputs a first control signal upon being switched on and outputs a second control signal after a working time. The delay circuit outputs a disconnecting signal upon being switched on. The buffer is switched off upon receiving the disconnect signal. The delay circuit further outputs a connecting signal after a delay time after outputting the disconnecting signal. The buffer is switched on upon receiving the connect signal. The buffer further outputs the second control signal to the switching module upon being switched on. The switching module controls the second expansion module to be switched on v receiving the second control signal.

Abstract translation: 扩展控制电路包括耦合到第一扩展模块的延迟电路和耦合到第二扩展模块的开关电路。 开关电路包括缓冲器和开关模块。 缓冲器耦合到第一扩展模块。 第一扩展模块在接通时输出第一控制信号，并且在工作时间之后输出第二控制信号。 延迟电路在接通时输出断开信号。 接收到断开信号后，缓冲器被关闭。 延迟电路在输出断开信号之后进一步输出延迟时间后的连接信号。 接收到连接信号时，缓冲器接通。 缓冲器在接通时还将第二控制信号输出到开关模块。 切换模块控制第二扩展模块接通第二控制信号。

公开(公告)号：US20150108904A1

公开(公告)日：2015-04-23

申请号：US14579248

申请日：2014-12-22

Applicant: CHIA-TEH CHEN

Inventor： CHIA-TEH CHEN

IPC: H05B37/02

CPC classification number: H05B37/0227 ,  F21V3/00 ,  F21Y2115/10 ,  H03K17/133 ,  H03K17/941 ,  H05B33/0815 ,  H05B33/0854 ,  H05B33/0863 ,  H05B37/0272 ,  H05B39/08 ,  Y02B20/44 ,  Y10T307/25 ,  Y10T307/766 ,  Y10T307/773 ,  Y10T307/826

Abstract: A microcontroller-based multifunctional electronic switch uses a detection circuit design to convert external motion signals into message carrying sensing signals readable to the microcontroller. Based on the time length of sensing signals and the format of the sensing signals received in a preset instant period of time the microcontroller through the operation of its software program codes written in the OTPROM is able to recognize the working modes chosen by the external signal generating user and thereby selecting the appropriate loops of subroutine for execution. The system and method of the present invention may simultaneously be applicable to detection circuit design using infrared ray sensor, electrostatic induction sensor, conduction based touch sensor or push button sensor for performing multifunction such as controlling the on/off switch, the illumination power and the color temperature within the capacity of a single lighting device or an electrical appliance.

Abstract translation: 基于微控制器的多功能电子开关使用检测电路设计将外部运动信号转换为可读取到微控制器的消息传送感测信号。 基于感测信号的时间长度和在预设的即时时段内接收到的感测信号的格式，微控制器通过其写入OTPROM的软件程序代码的操作能够识别由外部信号产生选择的工作模式 从而选择用于执行的子程序的适当循环。 本发明的系统和方法可以同时适用于使用红外线传感器，静电感应传感器，导电型触摸传感器或按钮传感器的检测电路设计，用于执行多功能，例如控制开/关开关，照明功率和 单一照明装置或电器的容量内的色温。

公开(公告)号：US08872561B2

公开(公告)日：2014-10-28

申请号：US13829831

申请日：2013-03-14

Applicant: Cirrus Logic, Inc.

Inventor： Dan Shen ,  Lingli Zhang ,  Johann Gaboriau

IPC: H03K5/12 ,  H03K5/1534

CPC classification number: H03K17/133 ,  H02M2001/0009 ,  H03F3/2171

Abstract: In accordance with these and other embodiments of the present disclosure, an apparatus and a method may include receiving a first input configured to indicate an output voltage of an output node of a switched output stage comprising a pull-down driver device coupled at its non-gate terminals between a ground voltage and the output node and a pull-up driver device coupled at its non-gate terminals between a supply voltage and the output node. The method may also include receiving a second input configured to indicate a gate voltage of a gate terminal of a first one of the pull-up driver device and the pull-down driver device. The method may further include detecting direction of an output current flowing into or out of the output node based on the first input and the second input.

Abstract translation: 根据本公开的这些和其他实施例，装置和方法可以包括接收被配置为指示切换输出级的输出节点的输出电压的第一输入，包括在其非易失性存储器处耦合的下拉驱动器器件， 接地电压和输出节点之间的栅极端子和在其非栅极端子处在电源电压和输出节点之间耦合的上拉驱动器器件。 该方法还可以包括接收被配置为指示上拉驱动器器件和下拉驱动器器件中的第一个的栅极端子的栅极电压的第二输入。 该方法还可以包括基于第一输入和第二输入来检测流入或流出输出节点的输出电流的方向。

公开(公告)号：US20140312696A1

公开(公告)日：2014-10-23

申请号：US13868689

申请日：2013-04-23

Applicant: Honeywell International Inc.

Inventor： Daniel Tousignant ,  Daniel Landry

IPC: H03K3/012

CPC classification number: H03K17/725 ,  H03K17/133 ,  H03K17/16 ,  H03K17/6871 ,  H03K2217/0036 ,  H03K2217/0081 ,  Y10T307/615

Abstract: A power supply unit for use with thermostats or other like devices requiring power. A power supply unit may be designed to keep electromagnetic interference emissions at a minimum, particularly at a level that does not violate governmental regulations. A unit may be designed so that there is enough power for a triggering a switch at about a cross over point of a waveform of input power to the unit. Power for triggering may come from a storage source rather than line power to reduce emissions on the power line. Power for the storage source may be provided with power stealing. Power stealing may require switching transistors which can generate emissions. Gate signals to the transistors may be especially shaped to keep emissions from transistor switching at a minimum.

Abstract translation: 用于需要电力的恒温器或其他类似装置的电源单元。 电源单元可以设计成将电磁干扰排放量保持在最小值，特别是在不违反政府法规的水平。 一个单元可以被设计成使得有足够的电力来触发开关在大约与该单元的输入功率的波形的交叉点上。 用于触发的电源可能来自存储源，而不是线路电源，以减少电力线上的排放。 存储源的电源可能会被窃电。 窃电可能需要可以产生排放的开关晶体管。 对晶体管的栅极信号可以特别地成形为将晶体管切换的发射保持在最小。

公开(公告)号：US20140021933A1

公开(公告)日：2014-01-23

申请号：US13554881

申请日：2012-07-20

Applicant: Jon Gladish ,  Thomas N. Mathes ,  Sean T. Tarlton

Inventor： Jon Gladish ,  Thomas N. Mathes ,  Sean T. Tarlton

IPC: G05F3/08

CPC classification number: H02M1/08 ,  H02M3/1588 ,  H03K17/133 ,  H03K17/164 ,  H03K2217/0063 ,  H03K2217/0072 ,  Y02B70/1466

Abstract: One embodiment provides A DC-DC converter system that includes a high side switch and a low side switch coupled to a power supply, each switch is configured to transition from an on state to an off state and from an off state to an on state to deliver current to an inductor and a load. This embodiment also includes low side driver circuitry configured to control the conduction state of the low side switch and configured to drive the low side switch with a first gate driving signal during a first mode of operation and with a second gate driving signal during a second mode of operation. The first gate driving voltage is stronger than the second gate driving signal and the second gate driving signal is configured to cause a slower switch transition of the low side switch compared to the first gate drive control signal.

Abstract translation: 一个实施例提供一种DC-DC转换器系统，其包括耦合到电源的高侧开关和低侧开关，每个开关被配置为从接通状态转换到断开状态，并且从断开状态转换到接通状态到 将电流传递到电感和负载。 该实施例还包括低侧驱动器电路，其被配置为控制低侧开关的导通状态并且被配置为在第一操作模式期间以第一栅极驱动信号驱动低侧开关，并且在第二模式期间具有第二栅极驱动信号 的操作。 第一栅极驱动电压比第二栅极驱动信号强，并且第二栅极驱动信号被配置为导致低侧开关与第一栅极驱动控制信号相比较慢的开关转变。