WO2020191952A1 - 限流型电子整流器及运用该限流型电子整流器的灯管 - Google Patents

限流型电子整流器及运用该限流型电子整流器的灯管 Download PDF

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Publication number
WO2020191952A1
WO2020191952A1 PCT/CN2019/095718 CN2019095718W WO2020191952A1 WO 2020191952 A1 WO2020191952 A1 WO 2020191952A1 CN 2019095718 W CN2019095718 W CN 2019095718W WO 2020191952 A1 WO2020191952 A1 WO 2020191952A1
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Prior art keywords
current
limiting
resistor
electronic rectifier
reference signal
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PCT/CN2019/095718
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English (en)
French (fr)
Inventor
卢福星
刘荣土
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厦门普为光电科技有限公司
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Publication of WO2020191952A1 publication Critical patent/WO2020191952A1/zh

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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
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • 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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/21—Conversion of ac power input into dc power output without possibility of reversal 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
    • H02M7/217—Conversion of ac power input into dc power output without possibility of reversal 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/16—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
    • 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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • 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]
    • 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
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/20—Responsive to malfunctions or to light source life; for protection
    • H05B47/26—Circuit arrangements for protecting against earth faults
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/08—Limitation or suppression of earth fault currents, e.g. Petersen coil

Definitions

  • the invention relates to an electronic rectifier and a lamp tube, in particular to a current-limiting electronic rectifier and a lamp tube using the current-limiting electronic rectifier.
  • Type A is used when replacing the tube.
  • Type B is different from Type A (TypeA) lamps in that the internal wiring of the lamps needs to be changed when the lamp is installed
  • Type C TypeC lamps are driven by a DC power supply.
  • the lamp installation needs to replace the ballast inside the lamp
  • A+B (TypeA+B) lamps can be compatible with ballasts and allow direct AC power feeding. Therefore, there is no need to change the structure and wiring of the lamp when the lamp is replaced.
  • the main purpose of the present invention is to provide a current-limiting electronic rectifier and a lamp tube using the current-limiting electronic rectifier, which limits the upper limit of current output, avoids exceeding the acceptable specifications, and can Prevent leakage and extend the service life.
  • the main technical means adopted to achieve the above purpose is to make the aforementioned current-limiting electronic rectifier include:
  • a leakage detection module for connection with the power supply
  • the current limiting control unit detects the output signal of the power supply, and when the output signal of the power supply exceeds a reference signal, the output signal of the power supply is limited in real time.
  • the leakage detection module is arranged at a mains power supply terminal and connected to the power supply.
  • the leakage detection module can detect whether the mains power supply is leaking, and drive a light-emitting module to emit light through the driving module.
  • the limit of the driving module is The flow control unit continuously detects the output signal of the power supply. When the output signal of the power supply exceeds the reference signal, the output signal of the power supply is limited in real time to avoid exceeding the range that the light-emitting module can withstand, and achieve leakage prevention and extended use The purpose of life.
  • the body of a lamp tube for connection with a mains power supply
  • a leakage detection module is set in the body and connected to the power source
  • a light emitting module arranged in the body
  • the current limiting control unit detects the output signal of the power supply, and when the output signal of the power supply exceeds a reference signal, the output signal of the power supply is limited in real time.
  • the leakage detection module, the driving module and the light-emitting module are arranged in the main body of the lamp tube.
  • the leakage detection module receives the output signal of the power supply and detects whether the power is leaking, and drives the lamp through the driving module.
  • the light-emitting module emits light, and the current-limiting control unit of the drive module continuously detects the output signal of the power supply.
  • the output signal of the power supply exceeds the reference signal
  • the output signal of the power supply is limited in real time to avoid exceeding the tolerance of the light-emitting module
  • the scope of the battery can achieve the purpose of preventing leakage and prolonging the service life.
  • the drive module refers to a drive module with a TypeA+B circuit
  • the current limiting control unit is set under the TypeA circuit of the drive module to limit the maximum current
  • the leakage detection module includes a rectifier, and the rectifier is connected to the power source.
  • the current limiting control unit further includes a voltage input unit, a filter, a reference signal sampling circuit, a comparator, and a switch unit.
  • the comparator has a plurality of pins and is connected to the filter through the plurality of pins.
  • the voltage input unit is connected to the filter and provides a voltage drop signal, which is filtered by the filter and sends a filtered signal to the comparator; the reference signal sampling circuit provides a reference signal to the The comparator is used as the reference signal of the current-limiting control unit.
  • the comparator when the comparator receives the filtered signal sent by the filter and the reference signal provided by the reference signal sampling circuit, the comparator exceeds the reference signal based on the filtered signal, and the comparator outputs a control signal to When the switch unit is turned on, the waveform of the input voltage is cut down or part of the voltage is cut off to limit the output current.
  • the switch unit includes a MOS switch, and the MOS switch is connected to the rectifier of the leakage detection module.
  • the voltage input unit is composed of a first resistor and a second resistor connected in parallel;
  • the filter is composed of a third resistor in series with a first capacitor, and the third resistor and the first capacitor are connected in series.
  • the series connection point is connected to the comparator;
  • the reference signal sampling circuit is composed of a fourth resistor, a fifth resistor, a sixth resistor, a diode, and a second capacitor.
  • the comparators are respectively connected to At the series connection point of the fourth resistor and the second capacitor and at the series connection point of the fifth resistor and the diode, the comparator is connected to the voltage dividing point of the fifth resistor and the sixth resistor.
  • the light-emitting module refers to an LED light-emitting module.
  • FIG. 1 is a block diagram of a lamp structure according to a preferred embodiment of the present invention.
  • Figure 2 is a circuit diagram of a lamp tube according to a preferred embodiment of the present invention.
  • Fig. 3 is a circuit diagram of a driving module according to a preferred embodiment of the present invention.
  • Fig. 4 is a schematic diagram of an application state of limiting output signals in a preferred embodiment of the present invention.
  • Figures 1 and 2 are mainly connected to a lamp body 20 on an AC mains power supply (N, L) 10, and set in the lamp body 20
  • a current-limiting current-limiting electronic rectifier is used to convert the input AC power signal into a DC output signal DC, and under the control of the current-limiting current-limiting electronic rectifier, the output signal is closely limited.
  • the current-limiting electronic rectifier includes a leakage detection module 21 and a driving module 22.
  • the leakage detection module 21 receives the output signal of the power supply and detects whether the power supply has leakage.
  • the driving module 22 is electrically connected to the leakage detection module 21, and A light-emitting module in the lamp body 20 is driven to emit light according to the output signal.
  • the light-emitting module refers to an LED light-emitting module 23, so that the lamp body 20 is an LED lamp tube;
  • Module 22 refers to a drive module with TypeA+B circuit.
  • the driving module 22 is further provided with a current-limiting control unit 221, and the current-limiting control unit 221 is electrically connected to the leakage detection module 21, and the current-limiting control unit 221 detects the output signal of the power supply. When the output signal of the power supply is If a reference signal is exceeded, the output signal of the power supply is limited in real time.
  • the leakage detection module 21 includes a rectifier DB.
  • the rectifier DB is connected to the AC mains power supply (N, L) 10 to convert the input AC power signal into DC output signal DC.
  • the current limiting control unit 221 is set in the TypeA circuit of the driving module 22 to limit the maximum current.
  • the current limiting control unit 221 further includes a voltage input unit (R17 , R25), a filter (R18, C11), a reference signal sampling circuit (R20, R21, R22, D6, C10), a comparator (IC2) and a switch unit (Q4), the comparator (IC2) It has many pins (1 ⁇ 8), and connects the filter (R18, C11), the reference signal sampling circuit (R20, R21, R22, D6, C10, V+, 12V) and the switch unit ( Q4).
  • the voltage input unit (R17, R25) is arranged on a power loop of the TypeA circuit of the drive module 22, and is connected to the filter (R18, C11).
  • the voltage input unit (R17 , R25) is a voltage drop signal provided to the filter (R18, C11), which is filtered by the filter (R18, C11) and a filtered signal is sent to the inverting input terminal (pin of the comparator (IC2) Bit 2);
  • the reference signal sampling circuit (R20, R21, R22, D6, C10, V+, 12V) provides a reference signal to the comparator (IC2) in the same direction input terminal (pin 3 and pin 5) ), as the reference signal of the current limiting control unit 221.
  • the comparator (IC2) when the comparator (IC2) receives the filter signal sent by the filter (R18, C11) and the reference signal sampling circuit (R20, R21, R22, D6, C10, V+, 12V ) Provides a reference signal, the comparator (IC2) exceeds the reference signal based on the filtered signal, and the control terminal (pin 7) of the comparator (IC2) outputs a control signal (ie high potential) to the switch unit (Q4).
  • the switch unit (Q4) includes a MOS (Metal Oxide Semiconductor) switch (Q4).
  • the voltage input unit (R17, R25) is composed of a first resistor R17 and a second resistor R25 connected in parallel;
  • the filter (R18, C11) is composed of a third The resistor R18 is composed of a first capacitor C11 in series, and the series connection point of the third resistor R18 and the first capacitor C11 is connected with the pin 2 of the comparator (IC2);
  • the reference signal sampling circuit (R20, R21) , R22, D6, C10) is composed of a fourth resistor R20, a fifth resistor R21, a sixth resistor R22, a diode D6 and a second capacitor C11, wherein the comparator (IC2) pin 5 Are respectively connected to the series connection point of the fourth resistor R20 and the second capacitor C11 and to the series connection point of the fifth resistor R21 and the diode D6, the pin 3 of the comparator (IC2) is connected to the first The voltage dividing point of the five resistors R21 and the sixth resistor R22 is connected
  • the MOS switch (Q4) when the MOS switch (Q4) is turned on, the input voltage waveform S is cut to a part of the voltage S1 to limit the output current, or the input voltage waveform S is cut off a part of the voltage S2 to limit the output current .
  • the current-limiting control unit 221 continuously detects the output signal of the power supply, and the output signal of the power supply exceeds the reference signal, the current-limiting control unit 221 limits the output signal of the power supply in real time to avoid exceeding the power of the light-emitting module.
  • the range of tolerance has the effect of increasing safety.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

本发明公开一种限流型电子整流器及运用该限流型电子整流器的灯管，限流型电子整流器包括漏电检测模块以及驱动模块，驱动模块设有限流控制单元，且限流控制单元分别与漏电检测模块、灯管的发光模块电连接，使用时，通过漏电检测模块检测市电电源是否漏电，并由限流控制单元对输出信号进行限制，以避免超出发光模块所能承受，达到防漏电兼具延长灯管及发光模块寿命的目的。

Description

限流型电子整流器及运用该限流型电子整流器的灯管 技术领域
本发明是涉及一种电子整流器及灯管，尤其是涉及一种限流型电子整流器及运用该限流型电子整流器的灯管。
背景技术
科技日新月异，目前市面上的灯具不再以传统灯管为主流，消费者为要节能省电，均普遍性的使用LED灯管。
在现有技术中，LED灯管分为A类(TypeA)、B类(TypeB)、C类(TypeC)以及A+B类(TypeA+B)，其中A类(TypeA)在更换灯管时不需要更改灯具结构和线路，可以直接换上传统的T5、T8荧光灯；B类(TypeB)灯管不同于A类(TypeA)灯管的地方在于，灯管安装时需要改变灯具内部的线路；C类(TypeC)灯管是用直流电源驱动，灯管安装需替换灯具内部的镇流器；A+B类(TypeA+B)灯管既可以兼容镇流器又允许交流电直接馈电工作，因此灯管替换时也不需要更改灯具结构和线路。
但是在现有技术中，A+B类(TypeA+B)灯管在TypeA模式下的输出电流不恒定，导致在不同镇流器的电流不受控制，尤其是在高输出镇流器，其电流若超过LED所能承受，不仅影响安全性，同时影响LED的使用寿命，因此，如何提升A+B类(TypeA+B)灯管的安全性及延长使用寿命，确实有待提出更加解决方案的必要性。
发明内容
有鉴于上述现有技术的不足，本发明的主要目的在于提供一种限流型电子整流器及运用该限流型电子整流器的灯管，其限制电流输出上限，避免超出能承受的规格，同时能防止漏电，又能延长使用寿命。
为达成上述目的所采取的主要技术手段是令前述限流型电子整流器包括：
一漏电检测模块，供与电源连接；
一驱动模块，与该漏电检测模块电连接，该驱动模块设有一限流控制单元，且该限流控制单元与该漏电检测模块电连接；
其中，由该限流控制单元对电源的输出信号进行检测，当电源的输出信号超过一基准信号，则实时对电源的输出信号进行限制。
依上述构造，将该漏电检测模块设置在一市电电源端与电源连接，该漏电检测模块可检测市电电源是否漏电，并透过该驱动模块驱动一发光模块进行发光，该驱动模块的限流控制单元持续对电源的输出信号进行检测，当电源的输出信号超过该基准信号，则实时对 电源的输出信号进行限制，以避免超出该发光模块能承受的范围，达到防漏电兼具延长使用寿命的目的。
为达成上述目的所采取的又一主要技术手段是令前述灯管包括：
一灯管的本体，供与一市电电源连接；
一漏电检测模块，设置在该本体内，并与电源连接；
一发光模块，设置在该本体内；
一驱动模块，分别与该漏电检测模块、该发光模块电连接，该驱动模块进一步设有一限流控制单元，且该限流控制单元与该漏电检测模块电连接；
其中，由该限流控制单元对电源的输出信号进行检测，当电源的输出信号超过一基准信号，则实时对电源的输出信号进行限制。
依上述构造，在该灯管的本体内设置，该漏电检测模块、该驱动模块以及该发光模块，该漏电检测模块接收电源的输出信号，并检测电源是否漏电，并透过该驱动模块驱动该发光模块进行发光，该驱动模块的限流控制单元持续对电源的输出信号进行检测，当电源的输出信号超过该基准信号，则实时对电源的输出信号进行限制，以避免超出该发光模块能承受的范围，达到防漏电兼具延长使用寿命的目的。
优选的，所述驱动模块是指一具有TypeA+B电路的驱动模块，该限流控制单元是设在该驱动模块的TypeA电路下对最大电流进行限制。
优选的，所述漏电检测模块包括一整流器，该整流器连接电源。
优选的，所述限流控制单元更包括一电压输入单元、一滤波器、一基准信号采样电路、一比较器以及一开关单元，该比较器具有多数脚位，透过多数脚位连接该滤波器、该基准信号采样电路、该开关单元。
优选的，所述电压输入单元是与该滤波器连接，并提供一电压降信号，由该滤波器进行滤波并将一滤波信号送至该比较器；该基准信号采样电路提供一基准信号给该比较器，以作为该限流控制单元的基准信号。
优选的，当该比较器收到该滤波器送入的滤波信号以及该基准信号采样电路提供的基准信号，则该比较器是根据该滤波信号超过该基准信号，该比较器输出一控制信号至该开关单元，当该开关单元导通将输入电压的波形削低或者截断部分电压，以限制输出电流。
优选的，所述开关单元包括一MOS开关，该MOS开关是与该漏电检测模块的整流器连接。
优选的，所述电压输入单元是由一第一电阻与一第二电阻并连构成；该滤波器是由一第三电阻串联一第一电容构成，且该第三电阻与该第一电容的串联接点，是与该比较器连 接；该基准信号采样电路是由一第四电阻、一第五电阻、一第六电阻、一二极管以及一第二电容所组成，其中该比较器是分别连接在该第四电阻与该第二电容的串联接点上、以及在该第五电阻与该二极管的串联接点上，该比较器是与该第五电阻、该第六电阻的分压点连接。
优选的，所述发光模块是指一LED发光模块。
附图说明
以下附图仅旨在于对本发明做示意性说明和解释，并不限定本发明的范围。其中，
图1是本发明一较佳实施例的灯管架构的方块图；
图2是本发明一较佳实施例的灯管的电路图；
图3是本发明一较佳实施例的驱动模块的电路图；
图4是本发明一较佳实施例的限制输出信号的应用状态示意图。
附图标记说明：
10市电电源
20灯管本体
21漏电检测模块
22驱动模块
221限流控制单元
23发光模块。
具体实施方式
以下配合附图及本发明的较佳实施例，进一步阐述本发明为达成预定发明目的所采取的技术手段。
关于本发明的较佳实施例，请参考图1、2所示，其主要是在一交流市电电源(N,L)10上连接一灯管本体20，并于该灯管本体20内设置一限流型限流型电子整流器，用以将输入的交流电源信号转换为直流输出信号DC，并在该限流型限流型电子整流器的控制下，对输出信号近行限制。
该限流型电子整流器包括一漏电检测模块21、一驱动模块22，该漏电检测模块21接收电源的输出信号，并检测电源是否有漏电，该驱动模块22与该漏电检测模块21电连接，并根据输出信号驱动该灯管本体20内的一发光模块进行发光，于本较佳实施例中，该发光模块是指一LED发光模块23，使得该灯管本体20为一LED灯管；该驱动模块22是指一具有TypeA+B电路的驱动模块。
该驱动模块22进一步设有一限流控制单元221，且该限流控制单元221与该漏电检测 模块21电连接，并由该限流控制单元221对电源的输出信号进行检测，当电源的输出信号超过一基准信号，则实时对电源的输出信号进行限制。
请参阅图2、3所示，于本较佳实施例中该漏电检测模块21包括一整流器DB，该整流器DB连接该交流市电电源(N,L)10，将输入的交流电源信号转换为直流输出信号DC。如图3所示，于本较佳实施例中该限流控制单元221是设在该驱动模块22的TypeA电路下对最大电流进行限制，该限流控制单元221更包括一电压输入单元(R17,R25)、一滤波器(R18,C11)、一基准信号采样电路(R20,R21,R22,D6,C10)、一比较器(IC2)以及一开关单元(Q4)，该比较器(IC2)具有多数脚位(1～8)，透过多数脚位连接该滤波器(R18,C11)、该基准信号采样电路(R20,R21,R22,D6,C10,V+,12V)、该开关单元(Q4)。
于本较佳实施例中该电压输入单元(R17,R25)是设置在该驱动模块22的TypeA电路的一电源回路上，并与该滤波器(R18,C11)连接，该电压输入单元(R17,R25)是提供给该滤波器(R18,C11)一电压降信号，由该滤波器(R18,C11)进行滤波并将一滤波信号送至该比较器(IC2)的反向输入端(脚位2)；同时，该基准信号采样电路(R20,R21,R22,D6,C10,V+,12V)提供一基准信号给该比较器(IC2)的同向输入端(脚位3及脚位5)，以作为该限流控制单元221的基准信号。
于本较佳实施例中，当该比较器(IC2)收到该滤波器(R18,C11)送入的滤波信号以及该基准信号采样电路(R20,R21,R22,D6,C10,V+,12V)提供的基准信号，则该比较器(IC2)是根据该滤波信号超过该基准信号，该比较器(IC2)的控制端(脚位7)输出一控制信号(即高电位)至该开关单元(Q4)，于本较佳实施例中该开关单元(Q4)包括一MOS(Metal Oxide Semiconductor,金氧半场效晶体管)开关(Q4)。
进一步的，于本较佳实施例中该电压输入单元(R17,R25)是由一第一电阻R17与一第二电阻R25并连所构成；该滤波器(R18,C11)是由一第三电阻R18串联一第一电容C11所构成，且该第三电阻R18与该第一电容C11的串联接点，是与该比较器(IC2)的脚位2连接；该基准信号采样电路(R20,R21,R22,D6,C10)是由一第四电阻R20、一第五电阻R21、一第六电阻R22、一二极管D6以及一第二电容C11所组成，其中该比较器(IC2)的脚位5是分别连接在该第四电阻R20与该第二电容C11的串联接点上、以及在该第五电阻R21与该二极管D6的串联接点上，该比较器(IC2)的脚位3是与该第五电阻R21、该第六电阻R22的分压点连接；该MOS开关(Q4)是与该漏电检测模块21的整流器DB的信号输出端连接。
如图4所示，当该MOS开关(Q4)导通，则将输入电压的波形S削低部分电压S1，以限制输出电流，或者将输入电压的波形S截断部分电压S2，以限制输出电流。当该限流控制单元221持续对电源的输出信号进行检测，且电源的输出信号超过该基准信号，则该限 流控制单元221是实时对电源的输出信号进行限制，以避免超出该发光模块能承受的范围，产生增加安全性的作用。
以上所述仅是本发明的较佳实施例而已，并非对本发明做任何形式上的限制，虽然本发明已以较佳实施例揭露如上，然而并非用以限定本发明，任何熟悉本专业的技术人员，在不脱离本发明技术方案的范围内，当可利用上述揭示的技术内容作出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明技术方案的范围内。

Claims (10)

  1. 一种限流型电子整流器，其特征在于，该限流型电子整流器包括：
    一漏电检测模块，供与电源连接；及
    一驱动模块，与该漏电检测模块电连接，该驱动模块设有一限流控制单元，且该限流控制单元与该漏电检测模块电连接；
    其中，由该限流控制单元对电源的输出信号进行检测，当电源的输出信号超过一基准信号，则实时对电源的输出信号进行限制。
  2. 根据权利要求1所述的限流型电子整流器，其特征在于，该驱动模块是指一具有TypeA+B电路的驱动模块，该限流控制单元是设在该驱动模块的TypeA电路下对最大电流进行限制。
  3. 根据权利要求1或2所述的限流型电子整流器，其特征在于，该漏电检测模块包括一整流器，该整流器连接电源。
  4. 根据权利要求3所述的限流型电子整流器，其特征在于，该限流控制单元更包括一电压输入单元、一滤波器、一基准信号采样电路、一比较器以及一开关单元，该比较器具有多数脚位，透过多数脚位连接该滤波器、该基准信号采样电路、该开关单元。
  5. 根据权利要求4所述的限流型电子整流器，其特征在于，该电压输入单元是与该滤波器连接，并提供一电压降信号，由该滤波器进行滤波并将一滤波信号送至该比较器；该基准信号采样电路提供一基准信号给该比较器，以作为该限流控制单元的基准信号。
  6. 根据权利要求5所述的限流型电子整流器，其特征在于，当该比较器收到该滤波器送入的滤波信号以及该基准信号采样电路提供的基准信号，则该比较器是根据该滤波信号超过该基准信号，该比较器输出一控制信号至该开关单元，当该开关单元导通将输入电压的波形削低或者截断部分电压，以限制输出电流。
  7. 根据权利要求6所述的限流型电子整流器，其特征在于，该开关单元包括一MOS开关，该MOS开关是与该漏电检测模块的整流器连接。
  8. 根据权利要求7所述的限流型电子整流器，其特征在于，该电压输入单元是由一第一电阻与一第二电阻并连构成；该滤波器是由一第三电阻串联一第一电容构成，且该第三电阻与该第一电容的串联接点，是与该比较器连接；该基准信号采样电路是由一第四电阻、一第五电阻、一第六电阻、一二极管以及一第二电容所组成，其中该比较器是分别连接在该第四电阻与该第二电容的串联接点上、以及在该第五电阻与该二极管的串联接点上，该比较器是与该第五电阻、该第六电阻的分压点连接。
  9. 一种灯管，其特征在于，该灯管包括：
    一灯管的本体，供与一市电电源连接；
    一限流型电子整流器，是设置在该本体内并与电源连接，该限流型电子整流器是如权利要 求1所述的限流型电子整流器；
    一发光模块，设置在该本体内，并与该限流型电子整流器电连接。
  10. 根据权利要求9所述的灯管，其特征在于，该发光模块是指一LED发光模块。
PCT/CN2019/095718 2019-03-22 2019-07-12 限流型电子整流器及运用该限流型电子整流器的灯管 WO2020191952A1 (zh)

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