WO2015144017A1 - 一种数字式自适应型调光电源 - Google Patents

一种数字式自适应型调光电源 Download PDF

Info

Publication number
WO2015144017A1
WO2015144017A1 PCT/CN2015/074719 CN2015074719W WO2015144017A1 WO 2015144017 A1 WO2015144017 A1 WO 2015144017A1 CN 2015074719 W CN2015074719 W CN 2015074719W WO 2015144017 A1 WO2015144017 A1 WO 2015144017A1
Authority
WO
WIPO (PCT)
Prior art keywords
control chip
leg
dimming
logic control
circuit
Prior art date
Application number
PCT/CN2015/074719
Other languages
English (en)
French (fr)
Inventor
肖文春
Original Assignee
肖梦春
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 肖梦春 filed Critical 肖梦春
Publication of WO2015144017A1 publication Critical patent/WO2015144017A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/04—Controlling
    • H05B39/041—Controlling the light-intensity of the source
    • H05B39/044—Controlling the light-intensity of the source continuously
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Definitions

  • the utility model relates to the field of LED drive control, in particular to a digital external continuous dimming LED drive circuit.
  • LED lighting has the characteristics of energy saving, high efficiency, environmental protection, long life and small size. It has gradually replaced traditional lighting and is widely used in various fields such as indication, display, decoration, backlight, general lighting and urban night scene. Due to the electrical characteristics of the LED itself, people cannot freely set its brightness during use, which brings a lot of inconvenience to the use.
  • LED driving circuits that can be externally dimmed mostly use an external thyristor chopper circuit combined with a corresponding driving power source to achieve the purpose of changing the brightness of the LED lamp.
  • This dimming mode has a dimming effect. Ok, the dimmer does not match and so on.
  • the utility model provides a digital adaptive dimming power source, which can adaptively adjust the dimmer, has no matching problem with the dimmer, has good dimming effect, is simple to use, has strong anti-interference and high reliability. .
  • a digital adaptive dimming power supply comprising a rectifying circuit and a power matching circuit connected between an external dimmer and an LED load, and a connection between the rectifying circuit and the power matching circuit
  • An optical signal acquisition circuit and a logic control chip, an energy output control chip, and a storage memory chip, wherein the dimming signal acquisition circuit samples and detects a power signal input to the power supply circuit and transmits the detection signal to the logic control chip
  • the logic control chip outputs a corresponding PWM signal to the energy output control chip according to the received detection signal, so that the energy output control chip controls the power matching circuit to output a corresponding voltage or current to the LED a load
  • the storage memory chip is connected to the logic control chip, and the logic control chip records a matching value of the dimmer in different brightness states and is stored in the storage memory chip.
  • the utility model detects the presence and absence of the signal output by the dimmer through the dimming signal acquisition circuit, and outputs the detection signal to the logic control chip, and the logic control chip can be based on different detection signals.
  • the learning dimming range of the dimmer is learned, and the range of the corresponding PWM signal is automatically matched according to the range of the detection signal, and the corresponding PWM is controlled to control the current of the LED load to realize the dimming of the LED load; the entire dimming
  • the control process adopts full digital control, strong anti-interference and high reliability; it has an adaptive function and can be better matched with the dimmer. It saves the user's use cost and accelerates the popularization and application of LED dimming lamps.
  • FIG. 1 is a circuit block diagram of a digital adaptive dimming power supply in an embodiment of the present invention
  • FIG. 2 is a circuit diagram of a digital adaptive dimming power supply of the present invention in a specific embodiment.
  • the digital adaptive dimming power supply of the utility model comprises a rectifying circuit, a power matching circuit, a dimming signal collecting circuit, a logic control chip, an energy output control chip and a storage memory chip; wherein, the rectifying circuit The input end is externally connected to the dimmer, and the output end of the rectifier circuit is connected to the input end of the power matching circuit, and the output end of the power matching circuit is connected to the external LED load, and the power matching circuit is used for outputting the matched current to the LED load; dimming
  • the signal acquisition circuit is connected between the rectifier circuit and the power matching circuit, that is, connected to the power input end of the power matching circuit, samples and detects the power signal input to the power circuit, and then transmits the detection signal to the logic control chip; the logic control chip Outputting a corresponding PWM signal to the energy output control chip according to the received detection signal, and the energy output control chip controls the power supply matching circuit to output a corresponding voltage or current to the LED load according to the received P
  • the specific dimming process can be as follows:
  • the dimming signal acquisition circuit outputs the detection signal to the logic control chip, and the logic control chip After receiving the detection signal, the PWM signal is output to the energy output control chip, and the LED load brightness is adjusted to the maximum through the power matching circuit, and then flashing once to tell the user that the maximum value of the dimmer has been collected; and the logic control chip records The maximum value of the dimmer is stored to the memory chip.
  • the dimming signal acquisition circuit After the set time (3 seconds), the dimming signal acquisition circuit outputs the detection signal to the logic control chip. After the logic control chip receives the detection signal, The PWM signal is output to the energy output control chip, the LED load brightness is adjusted to a minimum through the power matching circuit, and then flashed once to tell the user that the minimum value of the dimmer has been collected; and the logic control chip records the minimum value of the dimmer and Store to the memory chip.
  • the new dimmer is adapted to the success of the study.
  • the dimming signal acquisition circuit outputs the detection signal to the logic control chip, and after receiving the detection signal, the logic control chip determines the dimming brightness required by the dimmer, and outputs the PWM signal to the energy.
  • the output control chip adjusts the brightness of the LED load to the desired value through the power matching circuit.
  • the logic control chip After the power is turned on again, the dimmer is adjusted to the required brightness, and the logic control chip first reads the matching value of the dimmer stored in the memory chip, and the matching value can be understood as the intensity of the detection signal and the corresponding value.
  • PWM signal duty cycle then read the detection signal detected by the dimming signal acquisition circuit, determine the dimming brightness required by the dimmer, output PWM signal to the energy output control chip, adjust the LED load brightness through the power matching circuit Go to the desired value.
  • the dimming signal collecting circuit includes a first sampling unit (a first resistor R1 and a second resistor R2) and an optocoupler device U4, a seventh resistor R7, and an eighth resistor R8.
  • a first sampling unit a first resistor R1 and a second resistor R2
  • an optocoupler device U4 a seventh resistor R7
  • an eighth resistor R8 an eighth resistor R8.
  • the sampling point is connected to the 1 terminal of the optocoupler device U4, the 2 terminal of the optocoupler device U4 is connected to the negative output terminal 1 of the rectifier circuit, the 4 terminal of the optocoupler device U4 is connected to the potential VDD, and the 3 terminal of the optocoupler device U4 passes the
  • the seventh resistor R7 is grounded, the seventh resistor C7 is connected in parallel with the second capacitor C2, the three ends of the optocoupler device U4 are connected to one end of the eighth resistor R8, and the other end of the eighth resistor R8 is connected to the ground through the ninth resistor R9, the ninth resistor Parallel to the third capacitor C3, the eighth resistor R8 and the The connection point of the nine resistor
  • the dimming signal acquisition circuit further includes a second sampling unit (a third resistor R3, a fourth resistor R4), an NPN transistor Q1, a first capacitor C1, and one end of the third resistor R3 is connected to a positive output terminal of the rectifier circuit. 2.
  • the other end of the third resistor R3 is connected to the negative output terminal 1 of the rectifier circuit through the fourth resistor R4, and the connection point (ie, the sampling point) of the third resistor R3 and the fourth resistor R4 is connected to the base of the NPN transistor Q1.
  • the emitter of the NPN transistor Q1 is grounded, and the collector of the NPN transistor Q1 is connected as a detection signal output terminal of the dimming signal acquisition circuit to the fourth leg of the logic control chip U2, and between the collector and the logic control chip U2.
  • a grounded first capacitor C1 is also connected to the connection point.
  • the rectifier circuit BD1 is composed of four diodes, the positive input terminal 4 of the rectifier circuit is connected to the output end of the dimmer, the negative input terminal 3 of the rectifier circuit is connected to the output end of the dimmer, and the dimming input end is connected to the live line L of the power supply. The other input of the dimming is connected to the neutral line N of the AC power source.
  • the logic control chip U2 model may be MK7A23P
  • the energy output control chip U1 model may be PT4209
  • the first leg of the logic control chip U2 is grounded
  • the eighth pin is connected to the high potential VDD
  • the second leg and the first The three legs are connected to the memory chip
  • the fifth leg is connected to the seventh leg DIM of the energy output control chip
  • the sixth leg is suspended.
  • the sixth pin GND of the energy output control chip U1 is grounded, and the first to fifth legs (VINS, DET, VCC, DRV) and the eighth pin COMP of the energy output control chip are respectively connected to the power matching circuit.
  • the storage memory chip U3 can be HT24C02, can be read and written EEPROM, can save data when power is off; the first to fourth feet (A0, A1, A2, VSS) and the seventh foot WP of the memory chip are grounded.
  • the eighth pin VCC is connected to the high potential VDD, and the fifth pin SDA and the sixth pin SCL are respectively connected to the third leg and the second leg of the logic control chip.
  • the logic control chip and the memory memory chip can also be implemented by using one IC; of course, the logic control chip, the memory memory chip and the energy output control chip can be implemented by the same IC. However, the implementation principle is consistent with the utility model, and the same all-digital dimming effect is achieved.

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

本实用新型公开了一种数字式自适应型调光电源，包括整流电路、电源匹配电路、调光信号采集电路、逻辑控制芯片、能量输出控制芯片和存储记忆芯片。本实用新型的整个调光控制过程采用全数字控制，抗干扰性强，可靠性高；具有自适应功能，适用所有通用的调光器，节省了用户的使用成本，加快了LED调光灯具的普及和应用。

Description

一种数字式自适应型调光电源 [技术领域]
本实用新型涉及LED驱动控制领域，尤其涉及一种数字式外部连续调光LED驱动电路。
[背景技术]
LED照明具有节能、高效、环保、寿命长、体积小等特点，已逐渐取代传统照明，广泛应用于各种指示、显示、装饰、背光源、普通照明和城市夜景等领域。由于LED自身的电器特性，人们使用中无法自由设定它的亮度，给使用带来很多不便。
现有的可以通过外部调光的LED驱动电路，大都采用外部的可控硅组成的斩波电路结合相应的驱动电源来实现改变LED灯亮度的目的，这种调光方式，存在调光效果不好，调光器不匹配等问题。
[实用新型内容]
本实用新型提供了一种数字式自适应型调光电源，其可以自适应调光器，不存在与调光器的匹配问题，调光效果好，使用简单，抗干扰性强，可靠性高。
本实用新型的技术方案是：
一种数字式自适应型调光电源，包括依顺序连接在外部的调光器和LED负载之间的整流电路和电源匹配电路、连接在所述整流电路和所述电源匹配电路之间的调光信号采集电路，以及逻辑控制芯片、能量输出控制芯片和存储记忆芯片，所述调光信号采集电路对输入到所述电源匹电路的电源信号取样检测并将检测信号传输给所述逻辑控制芯片，所述逻辑控制芯片根据接收到的所述检测信号输出相应的PWM信号给所述能量输出控制芯片，使所述能量输出控制芯片控制所述电源匹配电路输出相应的电压或电流给所述LED负载；所述存储记忆芯片和所述逻辑控制芯片连接，所述逻辑控制芯片记录所述调光器在不同亮度状态下的匹配值并存储于所述存储记忆芯片中。
本实用新型通过调光信号采集电路检测调光器输出的信号的有无和大小，并将检测信号输出到逻辑控制芯片，逻辑控制芯片从而可以根据不同的检测信号， 进行学习调光器的输出调光范围，并根据检测信号的范围自行匹配输出相应的PWM信号的范围，选择输出相应的PWM控制LED负载的电流大小，以实现LED负载的调光；整个调光控制过程采用全数字控制，抗干扰性强，可靠性高；具有自适应功能，可以更好的配合调光器使用。节省了用户的使用成本，加快了LED调光灯具的普及和应用。
[附图说明]
图1是本实用新型的一种数字式自适应型调光电源在一实施例中的电路原理框图；
图2是本实用新型的一种数字式自适应型调光电源在一具体实施例中的电路图。
[具体实施方式]
下面结合附图和具体实施例对本实用新型做一详细的阐述。
本实用新型的一种数字式自适应型调光电源，如图1，包括整流电路、电源匹配电路、调光信号采集电路、逻辑控制芯片、能量输出控制芯片和存储记忆芯片；其中，整流电路的输入端外接调光器，整流电路的输出端接电源匹配电路的输入端，电源匹配电路的输出端接外部的LED负载，该电源匹配电路用于输出相匹配的电流给LED负载；调光信号采集电路连接在整流电路和电源匹配电路之间，即连接在电源匹配电路的电源输入端，对输入到电源匹电路的电源信号取样检测，然后将检测信号传输到逻辑控制芯片；逻辑控制芯片根据接收到的检测信号输出相应的PWM信号给能量输出控制芯片，能量输出控制芯片根据接收到的PWM信号控制电源匹配电路输出相应的电压或电流给LED负载；存储记忆芯片和逻辑控制芯片连接，逻辑控制控制芯片记录调光器在不同亮度状态下的匹配值并存储于所述存储记忆芯片中。
具体调光过程可以如下：
自适应学习过程：
在第一次使用本实用新型的一种数字式自适应型调光电源的时候，需要进行适应学习，以达到与新调光器的匹配的目的，过程如下：
1.接通电源开关，将调光器调到最大亮度值。
2.在设定时间(2秒)内连续关复数次(2次)，即将调光器调到关闭然后再调到最大；调光信号采集电路将检测信号输出到逻辑控制芯片，逻辑控制芯片收到检测信号后，会输出PWM信号给将能量输出控制芯片，通过电源匹配电路将LED负载亮度调到最大，然后闪动一次告诉用户已经采集到调光器的最大值；同时逻辑控制芯片记录调光器的最大值并存储到存储记忆芯片。
3.将调光器调到最小亮度值(不要关闭电源)，停留设定时间(3秒)后，调光信号采集电路将检测信号输出到逻辑控制芯片，逻辑控制芯片收到检测信号后，会输出PWM信号给能量输出控制芯片，通过电源匹配电路将LED负载亮度调到最小，然后闪动一次告诉用户已经采集到调光器的最小值；同时逻辑控制芯片记录调光器的最小值并存储到存储记忆芯片。
通过以上步骤，新的调光器适应学习成功。
调光过程：
将调光器调到所需的亮度，调光信号采集电路将检测信号输出到逻辑控制芯片，逻辑控制芯片收到检测信号后，确定调光器所需的调光亮度，输出PWM信号给能量输出控制芯片，通过电源匹配电路将LED负载亮度调到所需值。
再次上电后将调光器调到所需的亮度，逻辑控制芯片首先读取存储在存储记忆芯片里的调光器的匹配值，所述的匹配值可以理解为检测信号的强度和所对应的PWM信号占空比，然后读取调光信号采集电路检测到的检测信号，确定调光器所需的调光亮度，输出PWM信号给能量输出控制芯片，通过电源匹配电路将LED负载亮度调到所需值。
如图2，在一具体实施例中，所述调光信号采集电路包括第一取样单元(第一电阻R1、第二电阻R2)和光耦器件U4，第七电阻R7，第八电阻R8，第九电阻R9，第二电容C2和第三电容C3。第一电阻R1的一端接整流电路的正极输出端2，第一电阻R1的另一端通过第二电阻R2接整流电路的负极输出端1，第一电阻R1和第二电阻R2的连接点(即取样点)与光耦器件U4的1端连接，光耦器件U4的2端的与整流电路的负极输出端1连接，光耦器件U4的4端接电位VDD，光耦器件U4的3端通过第七电阻R7接地，第七电阻R7上并联第二电容C2，光耦器件U4的3端连接第八电阻R8的一端，第八电阻R8的另一端通过第九电阻R9连接到地，第九电阻上并联第三电容C3，第八电阻R8和第 九电阻R9的连接点为调光信号采集电路的信号一个输出端，连接到逻辑控制芯片U2的第七脚。
所述调光信号采集电路还包括第二取样单元(第三个电阻R3，第四个电阻R4)，NPN型三极管Q1，第一电容C1；第三电阻R3的一端接整流电路的正极输出端2，第三电阻R3的另一端通过第四电阻R4接整流电路的负极输出端1，第三电阻R3和第四电阻R4的连接点(即取样点)与NPN型三极管Q1的基极连接，NPN型三极管Q1的发射极接地，NPN型三极管Q1的集电极作为调光信号采集电路的检测信号输出端连接至逻辑控制芯片U2的第四脚，另外，在集电极和逻辑控制芯片U2之间的连接点上还连接有一接地的第一电容C1。需要说明的是，以上所列举的三极管型号并不用于限制本实用新型。
其中，整流电路BD1由四个二极管组成，整流电路的正极输入端4连接调光器输出端，整流电路的负极输入端3连接调光器输出端，调光输入端连接电源的火线L连接，调光另一输入端与交流电源的零线N连接。
具体实施时，所述逻辑控制芯片U2型号可以为MK7A23P，所述能量输出控制芯片U1型号可以为PT4209；逻辑控制芯片U2的第一脚接地、第八脚接高电位VDD，第二脚和第三脚与存储记忆芯片连接，第五脚与能量输出控制芯片的第七脚DIM连接，第六脚悬空。能量输出控制芯片U1的第六脚GND接地，能量输出控制芯片的第一脚至第五脚(VINS、DET、VCC、DRV)及第八脚COMP分别与电源匹配电路连接。
所述存储记忆芯片U3型号可以为HT24C02，是可读写EEPROM，可以掉电保存数据；存储记忆芯片的第一脚至第四脚(A0、A1、A2、VSS)及第七脚WP接地，第八脚VCC接高电位VDD，第五脚SDA和第六脚SCL分别与逻辑控制芯片的第三脚和第二脚连接。
其中，逻辑控制芯片和存储记忆芯片也可以采用一个IC来实现；当然也可以将逻辑控制芯片、存储记忆芯片和能量输出控制芯片采用同一个IC来实现。但其实现原理与本实用新型一致，达到同样的全数字调光效果。
以上所述的本实用新型实施方式，并不构成对本实用新型保护范围的限定。任何在本实用新型的精神和原则之内所作的修改、等同替换和改进等，均应包含在本实用新型的权利要求保护范围之内。

Claims (5)

  1. 一种数字式自适应型调光电源，其特征在于，包括依顺序连接在外部的调光器和LED负载之间的整流电路和电源匹配电路、连接在所述整流电路和所述电源匹配电路之间的调光信号采集电路，以及逻辑控制芯片、能量输出控制芯片和存储记忆芯片，所述调光信号采集电路对输入到所述电源匹配电路的电源信号取样检测并将检测信号传输给所述逻辑控制芯片，所述逻辑控制芯片根据接收到的所述检测信号输出相应的PWM信号给所述能量输出控制芯片，使所述能量输出控制芯片控制所述电源匹配电路输出相应的电压或电流给所述LED负载；所述存储记忆芯片和所述逻辑控制芯片连接，所述逻辑控制芯片记录所述调光器在不同亮度状态下的匹配值并存储于所述存储记忆芯片中。
  2. 根据权利要求1所述的调光电源，其特征在于：所述调光信号采集电路包括光耦器件和第一取样单元；所述光耦器件的输入端连接在所述第一取样单元的取样点和地之间，所述光耦器件的输出端连接在一高电位和所述逻辑控制芯片之间。
  3. 根据权利要求2所述的调光电源，其特征在于：所述调光信号采集电路还包括三极管和第二取样单元；所述三极管的第一端连接所述第二取样单元的取样点，所述三极管的第二端连接在所述逻辑控制芯片上，所述三极管的第三端接地。
  4. 根据权利要求1或2所述的调光电源，其特征在于：所述逻辑控制芯片型号为MK7A23P，所述能量输出控制芯片型号为PT4209；逻辑控制芯片的第一脚接地、第八脚接高电位，第六脚悬空，第四脚和第七脚接所述调光控信号采集电路的输出端，第二脚和第三脚与存储记忆芯片连接，第五脚与能量输出控制芯片的第七脚连接，能量输出控制芯片的第六脚接地，能量输出控制芯片的第一脚至第五脚及第八脚分别与电源匹配电路连接。
  5. 根据权利要求4所述的调光电源，其特征在于：所述存储记忆芯片型号为HT24C02，存储记忆芯片的第一脚至第四脚及第七脚接地，第八脚接高电位，第五脚和第六脚分别与逻辑控制芯片的第三脚和第二脚连接。
PCT/CN2015/074719 2014-03-25 2015-03-20 一种数字式自适应型调光电源 WO2015144017A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201420138050.1U CN203761654U (zh) 2014-03-25 2014-03-25 一种数字式自适应型调光电源
CN201420138050.1 2014-03-25

Publications (1)

Publication Number Publication Date
WO2015144017A1 true WO2015144017A1 (zh) 2015-10-01

Family

ID=51256881

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/074719 WO2015144017A1 (zh) 2014-03-25 2015-03-20 一种数字式自适应型调光电源

Country Status (2)

Country Link
CN (1) CN203761654U (zh)
WO (1) WO2015144017A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114364093A (zh) * 2022-03-21 2022-04-15 杭州易会通科技有限公司 用于三相交流供电led灯的pwm信号调光电路和方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203761654U (zh) * 2014-03-25 2014-08-06 肖梦春 一种数字式自适应型调光电源
CN104503285A (zh) * 2014-12-20 2015-04-08 中山市特新电子科技有限公司 一种用电设备控制装置
CN109219182B (zh) * 2017-07-06 2020-11-10 宁波灿祥光电有限公司 一种记忆调光电路
CN108430140A (zh) * 2018-05-31 2018-08-21 东莞艾笛森光电限公司 一种带断电记忆功能的pwm调制led驱动电路

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101330785A (zh) * 2008-08-04 2008-12-24 梁莉丽 通用型恒流led高压交流调光控制器
CN101795517A (zh) * 2010-02-08 2010-08-04 英飞特电子（杭州）有限公司 用于前沿和/或后沿调光的pwm斩波led驱动电路
CN101852374A (zh) * 2010-06-03 2010-10-06 深圳市亮百佳电子科技有限公司 一种不闪烁且具有调光功能的led mr16射灯
CN203761654U (zh) * 2014-03-25 2014-08-06 肖梦春 一种数字式自适应型调光电源

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101330785A (zh) * 2008-08-04 2008-12-24 梁莉丽 通用型恒流led高压交流调光控制器
CN101795517A (zh) * 2010-02-08 2010-08-04 英飞特电子（杭州）有限公司 用于前沿和/或后沿调光的pwm斩波led驱动电路
CN101852374A (zh) * 2010-06-03 2010-10-06 深圳市亮百佳电子科技有限公司 一种不闪烁且具有调光功能的led mr16射灯
CN203761654U (zh) * 2014-03-25 2014-08-06 肖梦春 一种数字式自适应型调光电源

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114364093A (zh) * 2022-03-21 2022-04-15 杭州易会通科技有限公司 用于三相交流供电led灯的pwm信号调光电路和方法
CN114364093B (zh) * 2022-03-21 2022-07-05 杭州易会通科技有限公司 用于三相交流供电led灯的pwm信号调光电路和方法

Also Published As

Publication number Publication date
CN203761654U (zh) 2014-08-06

Similar Documents

Publication Publication Date Title
WO2015144017A1 (zh) 一种数字式自适应型调光电源
CN201509343U (zh) 一种遥控照明灯调光装置
CN102811530A (zh) 一种升压型led驱动电路及灯具
CN104039057A (zh) 一种恒光通量led模组控制电路
CN102811531A (zh) 一种降压型led驱动电路及灯具
CN203301806U (zh) 一种自动调光型信号灯
CN104470034A (zh) Led台灯的亮度自动控制电路
CN102927519A (zh) 一种自动感光控制型的太阳能led灯
CN108282928B (zh) 一种采用交流电源供电的三态变频led电源输出功率控制电路
CN202696973U (zh) 一种led庭院灯
CN205336608U (zh) 一种led恒流驱动电源
CN205610989U (zh) 用电源开关无极调光的led灯
WO2018209795A1 (zh) 光控led灯丝灯驱动系统、光控led灯丝灯及控制方法
CN204554564U (zh) 智能型节电路灯
CN104202890B (zh) 照明设备的待机电路和照明设备的工作电路
CN204466005U (zh) 一种基于按需照明的led智能路灯
CN202340335U (zh) 光控电子开关
CN208175058U (zh) 智能灯光控制电路
CN206350199U (zh) 一种led路灯
CN206389581U (zh) 光控led汽车大灯控制装置
CN204498421U (zh) 一种智能led照明系统
CN104640329A (zh) 一种智能led照明系统及其控制方法
CN205454140U (zh) 一种抗干扰光伏led照明灯电路
CN206136367U (zh) 一种多功能智能家居led灯
CN109640448A (zh) 一种恒流反馈控制电路

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15769125

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 27/02/2017)

122 Ep: pct application non-entry in european phase

Ref document number: 15769125

Country of ref document: EP

Kind code of ref document: A1