CN212183768U - 一种调电压式切相调光电源 - Google Patents

一种调电压式切相调光电源 Download PDF

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CN212183768U
CN212183768U CN202021103769.3U CN202021103769U CN212183768U CN 212183768 U CN212183768 U CN 212183768U CN 202021103769 U CN202021103769 U CN 202021103769U CN 212183768 U CN212183768 U CN 212183768U
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郑德华
赵显云
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Zhuhai Shengchang Electronics Co ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
    • H02M1/007—Plural converter units in cascade
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
    • 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/32—Pulse-control circuits
    • H05B45/325—Pulse-width modulation [PWM]
    • 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/355—Power factor correction [PFC]; Reactive power compensation
    • 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/36—Circuits for reducing or suppressing harmonics, ripples or electromagnetic interferences [EMI]
    • 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • H05B45/59—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits for reducing or suppressing flicker or glow effects
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
    • H02M1/081—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters wherein the phase of the control voltage is adjustable with reference to the AC source
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/12—Arrangements for reducing harmonics from ac input or output
    • H02M1/126—Arrangements for reducing harmonics from ac input or output using passive filters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
    • H02M1/4208—Arrangements for improving power factor of AC input
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
    • H02M3/33523—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters with galvanic isolation between input and output of both the power stage and the feedback loop
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/22—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M5/25—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M5/257—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/22—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M5/275—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M5/293—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • 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
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

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  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

本实用新型公开了一种调电压式切相调光电源，包括顺次电连接的电磁滤波电路、整流电路、功率转换电路、变压器以及整流滤波电路，还包括电磁滤波电路的输出端顺次电连接的切相调光信号转换电路、第一光耦、调光信号转换电路、电压比较控制电路、第二光耦以及PWM控制电路，PWM控制电路的输出端与功率转换电路电连接，还包括分别与整流滤波电路的输出端以及电压比较控制电路电连接的电压采样电路，电磁滤波电路的输入端与切相调光器的输出端电连接，整流滤波电路的输出端可与灯具电连接；用调节输出电压的方式，实现无频闪、低噪音、纹波低、没有负载功率限制，能匹配同时调节亮度和色温的新型LED色温灯。

Description

一种调电压式切相调光电源
技术领域
本实用新型涉及切相调光电源领域，特别涉及一种调电压式切相调光电源。
背景技术
现有的切相调光电源，多数都是PWM输出的，PWM输出的缺点在于调光频率在3.2KHz内的会有频闪和噪音问题，调光频率在3.2KHz-20KHz内的也有噪音问题，目前极少能做20KHz以上的，且就算能做其损耗也较大，在保护和调光效果上也难处理；另外市场上出现了一种新型的LED色温灯，亮度色温可同时变化的LED灯，这种LED灯只能用调节电压的方式来实现亮度和色温同时变化，而PWM输出的电源不能满足其要求。市场上也有部分调节功率来实现调光的可控硅调光电源，这种可控硅调光电源存在纹波电压高、有频闪、效率低、有负载功率限制等缺点。
实用新型内容
本实用新型旨在至少解决现有技术中存在的技术问题之一。为此，本实用新型提出一种调节输出电压、无频闪、纹波低、没有负载功率限制的可控硅调光电源。
本实用新型的一种实施例解决其技术问题所采用的技术方案是：一种调电压式切相调光电源，包括可与外部电源连接的切相调光器以及与所述切相调光器的输出端连接的调电压式切相调光电源，所述调电压式切相调光电源可与灯具连接，所述调电压式切相调光电源包括顺次电连接的电磁滤波电路、整流电路、功率转换电路、变压器以及整流滤波电路，还包括与所述电磁滤波电路的输出端顺次电连接的切相调光信号转换电路、第一光耦、调光信号转换电路、电压比较控制电路、第二光耦以及PWM控制电路，所述PWM控制电路的输出端与功率转换电路电连接，还包括分别与所述整流滤波电路的输出端以及所述电压比较控制电路电连接的电压采样电路，所述电磁滤波电路的输入端与切相调光器的输出端电连接，所述整流滤波电路的输出端可与灯具电连接。
所述一种调电压式切相调光电源还包括PFC控制电路和PFC电路，所述PFC电路分别与PFC控制电路、整流电路的输出端以及功率转换电路的输入端电连接。
本实用新型的有益效果：一种调电压式切相调光电源，包括顺次电连接的电磁滤波电路、整流电路、功率转换电路、变压器以及整流滤波电路，还包括与电磁滤波电路的输出端顺次电连接的切相调光信号转换电路、第一光耦、调光信号转换电路、电压比较控制电路、第二光耦以及PWM 控制电路，PWM控制电路的输出端与功率转换电路电连接，还包括分别与整流滤波电路的输出端以及电压比较控制电路电连接的电压采样电路，电磁滤波电路的输入端与切相调光器的输出端电连接，整流滤波电路的输出端可与灯具电连接；用调节输出电压的方式，实现无频闪、低噪音、纹波低、没有负载功率限制，能匹配同时调节亮度和色温的新型LED色温灯。
附图说明
本实用新型的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1为本发明的应用场景；
图2为本发明的原理结构示意图。
具体实施方式
本部分将详细描述本实用新型的具体实施例，本实用新型之较佳实施例在附图中示出，附图的作用在于用图形补充说明书文字部分的描述，使人能够直观地、形象地理解本实用新型的每个技术特征和整体技术方案，但其不能理解为对本实用新型保护范围的限制。
在本实用新型的描述中，多个的含义是两个以上，大于、小于、超过等理解为不包括本数，以上、以下、以内等理解为包括本数。如果有描述到第一、第二只是用于区分技术特征为目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量或者隐含指明所指示的技术特征的先后关系。
在本实用新型的描述中，需要理解的是，涉及到方位描述，例如上、下、前、后、左、右等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本实用新型和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本实用新型的限制。
本实用新型中，除非另有明确的限定，“设置”、“安装”、“连接”等词语应做广义理解，例如，可以是直接相连，也可以通过中间媒介间接相连；可以是固定连接，也可以是可拆卸连接，还可以是一体成型；可以是机械连接；可以是两个元件内部的连通或两个元件的相互作用关系。所属技术领域技术人员可以结合技术方案的具体内容合理确定上述词语在本实用新型中的具体含义。
参照图1至图2，一种调电压式切相调光电源，包括可与外部电源连接的切相调光器101以及与所述切相调光器 101的输出端连接的调电压式切相调光电源102，所述调电压式切相调光电源102可与灯具103连接，所述调电压式切相调光电源102包括顺次电连接的电磁滤波电路1、整流电路2、功率转换电路3、变压器4以及整流滤波电路5，还包括与所述电磁滤波电路1的输出端顺次电连接的切相调光信号转换电路6、第一光耦7、调光信号转换电路8、电压比较控制电路9、第二光耦10以及PWM控制电路11，所述PWM控制电路11的输出端与功率转换电路3电连接，还包括分别与所述整流滤波电路5的输出端以及所述电压比较控制电路9电连接的电压采样电路12，所述电磁滤波电路1的输入端与切相调光器101的输出端电连接，所述整流滤波电路5的输出端可与灯具103电连接。
所述一种调电压式切相调光电源还包括PFC控制电路 13和PFC电路14，所述PFC电路14分别与PFC控制电路 13、整流电路2的输出端以及功率转换电路3的输入端电连接。
如图1所示，本发明调电压式切相调光电源102输入端连接切相调光器101，调电压式切相调光电源102输出端连接灯具103；调节切相调光器101，调电压式切相调光电源102输出电压随之变化，灯具103亮度也随之变化，如果灯具103是新型色温LED灯，亮度和色温同时随之变化。
如图2所示，本发明调电压式切相调光电源102接收到经过切相调光器101切相的交流电，输入到电磁滤波电路1滤除电磁干扰，然后一边输入到整流电路2整流，然后再输入到PFC电路14进行功率因数校正并升压成直流电给功率转换电路3提供供电，PFC控制电路13控制PFC电路14实现稳定的输出直流电给功率转换电路3，功率转换电路3与变压器4转换为我们输出需要的电压，再经过整流滤波电路5整流滤波得到需要的稳定的直流电压并输出给灯具103，PWM控制电路11控制功率转换电路3使其稳定工作；另一边经过电磁滤波电路1滤波的交流电输入到切相调光信号转换电路6，切相调光信号转换电路6将切相后的交流电信号转换成PWM信号给第一光耦7传递到调光信号转换电路8，调光信号转换电路8将PWM信号再转换成一个参考电压输入到电压比较控制电路9，同时电压采样电路12采集调电压式切相调光电源102输出端的电压信号，并降压后输入到电压比较控制电路9和调光信号转换电路 8输出的参考电压信号进行比较，当电压比较控制电路9 比较两个信号有差别的时候，电压比较控制电路9输出控制信号给第二光耦10，第二光耦10再将控制信号传递给 PWM控制电路11，PWM控制电路11再调整功率转换电路3 和变压器4的输出，达到稳定的输出。
当调节切相调光器101，使交流电的导通相位宽度发生改变后，输入到切相调光信号转换电路6的交流电导通相位宽度也发生改变，这时切相调光信号转换电路6转换输出的PWM信号脉宽也发生改变，脉宽发生改变的PWM信号通过第一光耦7传递到调光信号转换电路8，因此调光信号转换电路8输出的参考电压也发生改变并输入到电压比较控制电路9，此时电压比较控制电路9发出调整信号，通过第二光耦10传递到PWM控制电路11，PWM控制电路11再使功率转换电路3变压器4输出发生改变，再通过整流滤波电路5后输出电压发生改变，从而实现调节灯具103的亮度以及色温。常规情况下，调节切相调光器101使交流电导通相位宽度变窄时，调电压式切相调光电源102输出电压降低；反之，交流电导通相位宽度变宽时，调电压式切相调光电源102输出电压升高；用调节输出电压的方式，实现无频闪、低噪音、纹波低、没有负载功率限制，能匹配同时调节亮度和色温的新型LED色温灯。
本发明中，不使用PFC电路14和PFC控制电路13，也能实现同样的效果，只是这样的实施例的功率因数比较低而已，不使用PFC电路14和PFC控制电路13的实施例也应当视为本发明专利的保护范围内。
当然，本实用新型并不局限于上述实施方式，熟悉本领域的技术人员在不违背本实用新型精神的前提下还可作出等同变形或替换，这些等同的变形和替换均包含在本申请权利要求所限定的范围内。

Claims (2)

1.一种调电压式切相调光电源，包括可与外部电源连接的切相调光器(101)以及与所述切相调光器(101)的输出端连接的调电压式切相调光电源(102)，所述调电压式切相调光电源(102)可与灯具(103)连接，其特征在于：所述调电压式切相调光电源(102)包括顺次电连接的电磁滤波电路(1)、整流电路(2)、功率转换电路(3)、变压器(4)以及整流滤波电路(5)，还包括与所述电磁滤波电路(1)的输出端顺次电连接的切相调光信号转换电路(6)、第一光耦(7)、调光信号转换电路(8)、电压比较控制电路(9)、第二光耦(10)以及PWM控制电路(11)，所述PWM控制电路(11)的输出端与功率转换电路(3)电连接，还包括分别与所述整流滤波电路(5)的输出端以及所述电压比较控制电路(9)电连接的电压采样电路(12)，所述电磁滤波电路(1)的输入端与切相调光器(101)的输出端电连接，所述整流滤波电路(5)的输出端可与灯具(103)电连接。
2.根据权利要求1所述的一种调电压式切相调光电源，其特征在于：还包括PFC控制电路(13)和PFC电路(14)，所述PFC电路(14)分别与PFC控制电路(13)、整流电路(2)的输出端以及功率转换电路(3)的输入端电连接。
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