TW201911969A - LED lighting tube suitable for home fluorescent lamp and lower-voltage DC lamp including a tube body, a plurality of LED light emitting units, a driving circuit, and a selection circuit - Google Patents
LED lighting tube suitable for home fluorescent lamp and lower-voltage DC lamp including a tube body, a plurality of LED light emitting units, a driving circuit, and a selection circuit Download PDFInfo
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Description
本發明係與LED照明燈管有關,特別是指一種可適用於家用日光燈具及較低電壓直流電燈具的LED照明燈管。The invention relates to an LED lighting tube, in particular to an LED lighting tube which can be applied to domestic daylight lamps and lower voltage DC lamps.
在LED(發光二極體)的照明領域中,現有的LED照明燈管通常使用以鋁基板做為基板的LED模組,此種鋁基板LED模組之驅動電路所使用的電壓,可能為直流12V(伏特)、24V、36V或48V等等不同規格,而在實際使用時即連接於市電交流85~240V的電源,經由整流及降壓來使前述鋁基板LED模組的驅動電路能在適當的工作電壓下工作,藉以發光來提供照明服務。In the field of LED (light-emitting diode) illumination, the existing LED lighting tube generally uses an LED substrate with an aluminum substrate as a substrate, and the voltage used in the driving circuit of the aluminum substrate LED module may be DC. 12V (volt), 24V, 36V or 48V and other different specifications, and in actual use, it is connected to the mains AC 85 ~ 240V power supply, through the rectification and step-down to make the above-mentioned aluminum substrate LED module drive circuit can be appropriate Working under the working voltage, by means of illumination to provide lighting services.
然而,若是前述的現有LED照明燈管輸入的電壓低於85V時,例如,安裝於低電壓直流照明燈具(例如露營燈或緊急照明燈)時,鋁基板LED模組的驅動電路的輸出就降低,亦即所發出的光就變暗。而若是這個燈具所提供的電壓低於前述鋁基板LED模組的設計電壓(例如50V以下)時,則由於驅動電路無法正常工作,因此該鋁基板LED模組僅會發出微微的亮光,而呈現微亮狀態。此種狀況乃是無法正常工作的狀況。However, if the input voltage of the existing LED lighting tube is lower than 85V, for example, when installed in a low-voltage DC lighting fixture (such as a camping lamp or an emergency lighting), the output of the driving circuit of the aluminum substrate LED module is lowered. , that is, the light emitted is dimmed. If the voltage provided by the lamp is lower than the design voltage of the aluminum substrate LED module (for example, 50 V or less), since the driving circuit cannot work normally, the aluminum substrate LED module emits only a slight light, and the present invention Light up state. This situation is a situation in which it cannot work properly.
本發明之主要目的乃在於提供一種可適用於家用日光燈具及較低電壓直流電燈具的LED照明燈管,其不僅能適用於傳統市電交流85~240V電源的照明燈具,且又能適用於低於50V的低電壓直流照明燈具。The main purpose of the present invention is to provide an LED lighting tube which can be applied to household daylight lamps and lower voltage DC lamps, which can be applied not only to the lighting lamps of the conventional commercial power exchange 85~240V power source, but also to the lower than below. 50V low voltage DC lighting fixtures.
為了達成上述目的,本發明提供一種可適用於家用日光燈具及較低電壓直流電燈具的LED照明燈管,包含有:一管體,至少有一部分透光,且該管體具有至少二導電銷;複數LED(發光二極體)發光體,設於該管體內,其所發出的光係藉由該管體透光的部分向外透出;一驅動電路,設於該管體內,該驅動電路具有一整流單元以及一定電壓/定電流單元用來配合對家用電進行整流及定電壓/定電流的轉換,該定電壓/定電流單元具有二輸入端,該整流單元具有二輸入端電性連接於該至少二導電銷,以及具有一輸出端以及一接地端電性連接於該定電壓/定電流單元之二輸入端,該定電壓/定電流單元具有一輸出端以及一接地端;以及一選擇電路,該選擇電路具有一電壓轉換單元、一判斷單元以及一電控開關,該電壓轉換單元電性連接於該整流單元的輸出端,該電壓轉換單元具有一輸出端電性連接於該判斷單元,該判斷單元具有一控制端電性連接於該電控開關,該電控開關係電性連接於該整流單元的輸出端、該定電壓/定電流單元之輸出端以及該複數LED發光體,該電控開關之開啟/關閉狀態係使該整流單元的輸出端與該複數LED發光體之間開路或通路,該判斷單元係依該電壓轉換單元的輸出端的電壓來控制該電控開關的開啟/關閉。In order to achieve the above object, the present invention provides an LED lighting tube applicable to a household daylight lamp and a lower voltage DC lamp, comprising: a tube body having at least a portion of the light transmission, and the tube body having at least two conductive pins; a plurality of LED (light emitting diode) illuminators disposed in the tube body, wherein the light emitted by the LED body is transparently emitted through a portion of the tube body; a driving circuit is disposed in the tube body, the driving circuit The utility model has a rectifying unit and a certain voltage/constant current unit for coordinating the rectification and constant voltage/constant current conversion of the household electric power, the constant voltage/constant current unit having two input ends, the rectifying unit having two input ends electrically connected The constant voltage/constant current unit has an output end and a ground end; and the at least two conductive pins, and an output end and a ground end electrically connected to the two input ends of the constant voltage/constant current unit; a selection circuit having a voltage conversion unit, a determination unit, and an electronic control switch, the voltage conversion unit being electrically connected to the output end of the rectification unit, the voltage conversion The switching unit has an output terminal electrically connected to the determining unit, and the determining unit has a control end electrically connected to the electronic control switch, and the electrically controlled open relationship is electrically connected to the output end of the rectifying unit, the constant voltage/ An output end of the constant current unit and the plurality of LED illuminators, wherein the on/off state of the electronic control switch is an open circuit or a path between the output end of the rectifying unit and the plurality of LED illuminators, and the determining unit is converted according to the voltage The voltage at the output of the unit controls the on/off of the electronically controlled switch.
藉此,本發明可在安裝於傳統市電交流85~240V電源的照明燈具時,藉由該選擇電路來控制該電控開關開啟而開路,進而直接使用市電而正常工作發光照明,且又能在安裝於低於50V的低電壓直流照明燈具時,藉由該選擇電路來控制該電控開關關閉而導通,使LED發光體能直接取用整流單元所輸出的電能,進而仍然可以正常工作發光照明。Therefore, the present invention can be used to control the opening and opening of the electronically controlled switch by using the selection circuit when the lighting device of the 85-240V power supply of the conventional commercial power exchange is installed, thereby directly using the commercial power to operate the luminous illumination, and can When installed in a low-voltage DC lighting fixture below 50V, the selection circuit can control the electronic control switch to be turned off and turned on, so that the LED illuminator can directly use the electric energy output by the rectifying unit, so that the illuminating illumination can still work normally.
為了詳細說明本發明之技術特點所在,茲舉以下之較佳實施例並配合圖式說明如後,其中:In order to explain the technical features of the present invention in detail, the following preferred embodiments will be described with reference to the drawings, wherein:
如第1圖至第2圖所示,本發明以第一較佳實施例來說明一種可適用於家用日光燈具及較低電壓直流電燈具的LED照明燈管10,主要由一管體11、複數LED發光體21、一驅動電路31以及一選擇電路41所組成,其中:As shown in FIG. 1 to FIG. 2 , the present invention describes a LED lighting tube 10 applicable to a household daylight lamp and a lower voltage DC lamp according to the first preferred embodiment, which is mainly composed of a pipe body 11 and a plurality of tubes. The LED illuminator 21, a driving circuit 31 and a selection circuit 41 are formed, wherein:
該管體11,至少有一部分透光,且該管體11之兩端分別具有二導電銷12,該管體11一端之二該導電銷12係彼此電性連接,且該管體11另一端之二該導電銷12也是彼此電性連接。The tube body 11 has at least a portion of the light-transmitting portion, and the two ends of the tube body 11 respectively have two conductive pins 12, and the two ends of the tube body 11 are electrically connected to each other, and the other end of the tube body 11 is electrically connected. Second, the conductive pins 12 are also electrically connected to each other.
該複數LED發光體21,設於該管體11內,其所發出的光係藉由該管體11透光的部分向外透出。The plurality of LED illuminators 21 are disposed in the tube body 11, and the light emitted by the plurality of LED illuminators 21 is outwardly transmitted through a portion through which the tube body 11 transmits light.
該驅動電路31,設於該管體11內,該驅動電路31具有一整流單元32以及一定電壓/定電流單元34用來配合對家用電進行整流及定電壓/定電流的轉換,該定電壓/定電流單元34具有二輸入端341,該整流單元32具有二輸入端321分別電性連接於該管體11一端之一該導電銷12以及該管體11另一端之一該導電銷12。該整流單元32具有一輸出端323以及一接地端324電性連接於該定電壓/定電流單元34之二輸入端341,該定電壓/定電流單元34具有一輸出端343以及一接地端344電性連接於該複數LED發光體21。該定電壓/定電流單元34可以是單純的定電壓單元而僅提供定電壓功能,也可以是單純的定電流單元而僅提供定電流功能,也可以是定電壓及定電流複合單元而具有定電壓及定電流雙重功能,由於此元件係屬家用燈具上的習知驅動電路31的一部分,且主要功能是用來配合市電電源整流後之直流電源(即100V~240V直流電源),因此容不再予贅述其詳細電路結構。The driving circuit 31 is disposed in the tube body 11. The driving circuit 31 has a rectifying unit 32 and a constant voltage/constant current unit 34 for coordinating the rectification and constant voltage/constant current conversion of the household electric power. The constant current unit 34 has two input ends 341. The rectifying unit 32 has two input ends 321 electrically connected to one of the conductive pins 12 at one end of the tubular body 11 and one of the conductive pins 12 at the other end of the tubular body 11. The rectifying unit 32 has an output end 323 and a grounding end 324 electrically connected to the input terminal 341 of the constant voltage/constant current unit 34. The constant voltage/constant current unit 34 has an output end 343 and a ground end 344. Electrically connected to the plurality of LED illuminators 21. The constant voltage/constant current unit 34 may be a simple constant voltage unit and only provides a constant voltage function, or may be a simple constant current unit and only provides a constant current function, or may be a fixed voltage and constant current composite unit. The dual function of voltage and constant current, because this component is part of the conventional drive circuit 31 on the household luminaire, and the main function is to match the DC power supply after the rectification of the mains power supply (ie 100V~240V DC power supply), so The detailed circuit structure will be described again.
該選擇電路41,具有一電壓轉換單元42、一判斷單元44以及一電控開關46,該電壓轉換單元42電性連接於該整流單元32的輸出端323,該電壓轉換單元42係為一分壓電路,由二電阻串聯所組成,具有一輸出端423電性連接於該判斷單元44,用以轉換該整流單元32所輸出的電壓,該判斷單元44具有一控制端445電性連接於該電控開關46。該電控開關46,以繼電器為例,係電性連接於該整流單元32的輸出端323、該定電壓/定電流單元34之輸出端343以及該複數LED發光體21,該電控開關46之開啟/關閉狀態係使該整流單元32的輸出端323以及該複數LED發光體21之間開路或通路。該判斷單元44,主要由二電阻以及一電晶體T1所組成,而以該二電阻相串接的節點做為該控制端445並電性連接於該電晶體T1之導通端,該電晶體T1之控制端係電性連接於該電壓轉換單元42之輸出端423,而另一導通端則接地,該判斷單元44係依電壓轉換單元42的輸出端423輸出轉換後的電壓來決定該電晶體T1是否導通,進而控制該電控開關46的開啟/關閉。The selection circuit 41 has a voltage conversion unit 42, a determination unit 44, and an electronic control switch 46. The voltage conversion unit 42 is electrically connected to the output end 323 of the rectification unit 32. The voltage conversion unit 42 is a minute. The voltage circuit is composed of two resistors in series, and has an output terminal 423 electrically connected to the determining unit 44 for converting the voltage output by the rectifying unit 32. The determining unit 44 has a control terminal 445 electrically connected to the The electronically controlled switch 46. The electronic control switch 46 is electrically connected to the output end 323 of the rectifying unit 32, the output end 343 of the constant voltage/constant current unit 34, and the plurality of LED illuminators 21, and the electronic control switch 46 is taken as an example. The on/off state causes an open circuit or path between the output end 323 of the rectifying unit 32 and the plurality of LED illuminators 21. The determining unit 44 is mainly composed of a second resistor and a transistor T1, and a node connected in series by the two resistors is used as the control terminal 445 and is electrically connected to the conduction end of the transistor T1. The transistor T1 is electrically connected to the transistor T1. The control terminal is electrically connected to the output terminal 423 of the voltage conversion unit 42 and the other conduction terminal is grounded. The determination unit 44 determines the transistor by outputting the converted voltage according to the output terminal 423 of the voltage conversion unit 42. Whether T1 is turned on, thereby controlling the on/off of the electronically controlled switch 46.
以上說明了本第一實施例的架構,接下來說明本第一實施例的工作狀態。The architecture of the first embodiment has been described above, and the operational state of the first embodiment will be described next.
在實施時,係將本發明之LED照明燈管10安裝於燈具上,一般而言會有兩種狀況,即,第一種是安裝在家用LED燈具上,此燈具所使用之電源係為100V~240V的交流電,第二種則是安裝在低電壓直流燈具上,例如緊急照明燈或大樓消防線路之照明燈具,此燈具所使用之電源係為低於50V的直流電。此接下來即分別針對前述兩種狀況來說明本發明之LED照明燈管10的工作狀態。In the implementation, the LED lighting tube 10 of the present invention is mounted on the lamp. Generally, there are two conditions, that is, the first type is installed on the household LED lamp, and the power source used for the lamp is 100V. The second is about 240V AC, and the second is installed on low-voltage DC lamps, such as emergency lighting or building fire-fighting lighting. The power supply used in this luminaire is less than 50V DC. This is followed by an explanation of the operating states of the LED lighting tube 10 of the present invention for the foregoing two conditions.
如第1圖至第2圖所示,在第一種狀況時,當本發明之LED照明燈管10所安裝的燈具是家用LED燈具(圖中未示)時,其電源即為100V~240V的交流電,此種電源相較於前述第二種狀況而言是屬於高電壓電源。在通電後,電源經過該整流單元32的整流而成為直流電源,並經過該定電壓/定電流單元34提供定電壓或定電流或兩者均穩定的效果,並驅動該複數LED發光體21發光。此外,該整流單元32整流後的直流電源,也會進入該選擇電路41,由於這個電源是屬高電壓電源,因此該電壓轉換單元42之輸出端423所輸出的電壓即屬高準位,該判斷單元44之電晶體T1即因此而導通,進而使得該判斷單元44不控制該電控開關46導通,亦即該電控開關46處於開啟的不導通狀態。因此,該選擇電路41在第一種狀況時是不導通該電控開關46的,進而,該整流單元32的輸出端323以及該複數LED發光體21之間即呈開路狀態而不經由該電控開關46導通,亦即該高電壓電源即不會經由該選擇電路41來直接流至該定電壓/定電流單元34之輸出端343。As shown in FIG. 1 to FIG. 2, in the first case, when the lamp installed in the LED lighting tube 10 of the present invention is a household LED lamp (not shown), the power source is 100V~240V. The alternating current power supply is a high voltage power supply compared to the second condition described above. After being energized, the power source is rectified by the rectifying unit 32 to become a DC power source, and the constant voltage/constant current unit 34 is supplied with a constant voltage or a constant current or both, and the plurality of LED illuminators 21 are driven to emit light. . In addition, the DC power source rectified by the rectifying unit 32 also enters the selection circuit 41. Since the power source is a high voltage power source, the voltage outputted from the output terminal 423 of the voltage converting unit 42 is a high level. The transistor T1 of the determining unit 44 is thus turned on, so that the determining unit 44 does not control the electronically controlled switch 46 to be turned on, that is, the electronically controlled switch 46 is in an open non-conducting state. Therefore, the selection circuit 41 does not turn on the electronic control switch 46 in the first condition, and further, the output end 323 of the rectifying unit 32 and the plurality of LED illuminators 21 are in an open state without passing through the electric The control switch 46 is turned on, that is, the high voltage power source does not directly flow to the output terminal 343 of the constant voltage/constant current unit 34 via the selection circuit 41.
如第1圖至第2圖所示,在第二種狀況時,當本發明之LED照明燈管10所安裝的燈具是低電壓直流燈具(圖中未示)時,其電源即為低於50V的直流電,此種電源相較於前述第一種狀況而言是屬於低電壓電源。在通電後,直流電源經過該整流單元32的整流而仍然是直流電源,由於這是低電壓電源,且該定電壓/定電流單元34是適用於家用電整流後的直流電源,因此,該定電壓/定電流單元34轉換該低電壓電源後所輸出的電源,即無法對該複數LED發光體21提供足額功率的電源,而會使得該複數LED發光體21產生如同在先前技術中所提到的微亮狀態。然而,前述整流後的該低電壓電源同樣也會流至該選擇電路41,由於這個電源是屬低電壓電源,因此該電壓轉換單元42之輸出端423所輸出的電壓即屬低準位,該判斷單元44之電晶體T1即因此而不導通,進而使得該判斷單元44控制該電控開關46關閉而導通。藉此,該整流單元32的輸出端323以及該複數LED發光體21之間即呈導通狀態,該低電壓電源即直接由該整流單元32傳遞至該複數LED發光體21而驅動其發光。藉此,該複數LED發光體21除了接收該定電壓/定電流單元34所傳遞過來的轉換過的功率不足電源,且也直接接收到由該整流單元32傳遞過來的足額功率的電源,進而可以正常發光。As shown in FIG. 1 to FIG. 2, in the second case, when the luminaire installed in the LED illuminating lamp 10 of the present invention is a low voltage DC illuminator (not shown), the power supply is lower than that. 50V DC, which is a low voltage power supply compared to the first condition described above. After being energized, the DC power source is still rectified by the rectifying unit 32 and is still a DC power source. Since this is a low voltage power source, and the constant voltage/constant current unit 34 is suitable for a household electric rectified DC power source, therefore, the setting The power source outputted by the voltage/constant current unit 34 after converting the low voltage power source, that is, the power source capable of providing sufficient power to the plurality of LED illuminators 21, causes the plurality of LED illuminators 21 to be generated as in the prior art. The slightest state to reach. However, the rectified low-voltage power source also flows to the selection circuit 41. Since the power source is a low-voltage power source, the voltage outputted from the output terminal 423 of the voltage conversion unit 42 is a low level. The transistor T1 of the determining unit 44 is thus not turned on, thereby causing the determining unit 44 to control the electronically controlled switch 46 to be turned off and turned on. Thereby, the output end 323 of the rectifying unit 32 and the complex LED illuminator 21 are in an on state, and the low voltage power source is directly transmitted from the rectifying unit 32 to the plurality of LED illuminators 21 to drive the illuminating. Thereby, the complex LED illuminator 21 receives the converted power less than the power source transmitted by the constant voltage/constant current unit 34, and directly receives the power of the full power transmitted by the rectifying unit 32, thereby further Can glow normally.
由上可知,本發明之LED照明燈具,在前述第一種狀況使用高電壓電源時,該選擇電路41係不導通該電控開關46,該定電壓/定電流單元34即正常工作而驅動該複數LED發光體21正常發光;而在前述第二種狀況使用低電壓電源時,該定電壓/定電流單元34即無法正常工作,該選擇電路41即導通該電控開關46,使電源能直接提供給該複數LED發光體21,進而仍能驅動該複數LED發光體21正常發光。藉此,達到不僅能適用於傳統市電交流85~240V電源的照明燈具,且又能適用於低於50V的低電壓直流照明燈具的效果。As can be seen from the above, in the LED lighting fixture of the present invention, when the high voltage power supply is used in the first condition, the selection circuit 41 does not turn on the electronic control switch 46, and the constant voltage/constant current unit 34 operates normally to drive the LED lighting fixture. The plurality of LED illuminators 21 emit light normally; and when the low voltage power source is used in the second condition, the constant voltage/constant current unit 34 cannot operate normally, and the selection circuit 41 turns on the electronic control switch 46 to enable the power supply to directly The plurality of LED illuminators 21 are provided, and the plurality of LED illuminators 21 can still be driven to emit light normally. In this way, it can achieve the effects of not only the lighting of the traditional mains AC 85~240V power supply, but also the low voltage DC lighting below 50V.
須補充說明的是,如第3圖配合第1圖所示,本第一實施例中,可以增設一定電流單元51,增設的方式是使該電控開關46不直接電性連接於該定電壓/定電流單元34,而是改為電性連接於該定電流單元51,該定電流單元51再電性連接於該定電壓/定電流單元34之輸出端343。此種架構在該定電壓/定電流單元34為單純的定電壓單元時,可以額外發揮限定電流的效果,進而保護該複數LED發光體21不被過大的電流所燒毀或損壞。It should be noted that, as shown in FIG. 3 , in conjunction with FIG. 1 , in the first embodiment, a certain current unit 51 may be added, such that the electronically controlled switch 46 is not directly electrically connected to the constant voltage. The constant current unit 34 is electrically connected to the constant current unit 51, and the constant current unit 51 is electrically connected to the output terminal 343 of the constant voltage/constant current unit 34. In such a configuration, when the constant voltage/constant current unit 34 is a simple constant voltage unit, the effect of limiting the current can be additionally exerted, thereby protecting the complex LED illuminator 21 from being burned or damaged by an excessive current.
又,如第4圖配合第1圖所示,除了前述定電流單元51之外,還可以進一步再增設一升壓單元53,增設的方式是使該電控開關46係不直接電性連接於該定電流單元51,而是電性連接於該升壓單元53,該升壓單元53再電性連接於該定電流單元51,該定電流單元51再電性連接於該定電壓/定電流單元34之輸出端343。此種架構可以在前述第二狀況下,所安裝的燈具其電壓過低時,提供升壓的效果,進而仍然可以有效的驅動該複數LED發光體21正常工作。In addition, as shown in FIG. 4, in addition to the constant current unit 51, a boosting unit 53 may be further added, such that the electronically controlled switch 46 is not directly electrically connected to the electronic control switch 46. The constant current unit 51 is electrically connected to the boosting unit 53. The boosting unit 53 is electrically connected to the constant current unit 51. The constant current unit 51 is electrically connected to the constant voltage/constant current. Output 343 of unit 34. Such a structure can provide a boosting effect when the voltage of the installed luminaire is too low under the foregoing second condition, and thus can effectively drive the plurality of LED illuminators 21 to operate normally.
請再參閱第5圖至第7圖,本發明第二較佳實施例所說明的一種可適用於家用日光燈具及較低電壓直流電燈具的LED照明燈管10’,主要概同於前揭第一實施例,不同之處在於:Please refer to FIG. 5 to FIG. 7 again. The LED lighting tube 10' which can be applied to the household daylight lamp and the lower voltage DC lamp according to the second preferred embodiment of the present invention is mainly related to the foregoing disclosure. An embodiment, the difference is:
如第5圖所示,該管體11’之結構亦不同於前揭第一實施例,於本第二實施例中,該管體11’之一端係具有二導電銷12’,另一端則沒有設置導電銷12’,該整流單元32’之二該輸入端321’係分別電性連接於該二導電銷12’。此種導電銷12’設置的形態係為目前市面上之其他種照明燈管的形態。As shown in FIG. 5, the structure of the pipe body 11' is also different from the first embodiment. In the second embodiment, one end of the pipe body 11' has two conductive pins 12', and the other end has a second conductive pin 12'. The conductive pin 12' is not disposed, and the input end 321' of the rectifying unit 32' is electrically connected to the two conductive pins 12', respectively. The form in which such a conductive pin 12' is provided is in the form of other types of illumination tubes currently on the market.
該判斷單元44’可以由一個放大器445’所構成,也可以由兩個放大器445’所構成。於第6圖中,係以兩個放大器為例,而在第7圖中,則以一個放大器為例。而該電控開關46’則係以一金氧半場效電晶體(MOSFET)為例。此外,該電控開關46’亦可以為功率繼電器(Power Relay)或磁簧繼電器(Reed Relay),而不以前揭舉例之元件為限制。The judging unit 44' may be constituted by one amplifier 445' or may be constituted by two amplifiers 445'. In Fig. 6, two amplifiers are taken as an example, and in Fig. 7, an amplifier is taken as an example. The electronically controlled switch 46' is exemplified by a metal oxide half field effect transistor (MOSFET). In addition, the electronically controlled switch 46' can also be a power relay or a reed relay, and the components of the prior art are not limited.
本第二實施例之LED照明燈管10’在工作時,以第6圖之架構為例,其仍然是藉由該電壓轉換單元42’的輸出端423’電壓來進行二級的放大器445’比較,若該電壓轉換單元42’的輸出端423’電壓為高電壓,則第二級放大器445’的-端比+端高而輸出負電壓,藉以控制該電控開關46’不導通;若該電壓轉換單元42’的輸出端423’電壓為低電壓,則第二級放大器445’的-端比+高低而輸出正電壓,藉以控制該電控開關46’導通。而以第7圖之架構來說,仍是藉由該電壓轉換單元42’的輸出端423’電壓來進行該放大器445’的比較,若該電壓轉換單元42’的輸出端423’電壓為高電壓,則該放大器445’的-端比+端高而輸出負電壓,藉以控制該電控開關46’不導通;若該電壓轉換單元42’的輸出端423’電壓為低電壓,則該放大器445’的-端比+高低而輸出正電壓,藉以控制該電控開關46’導通。The LED lighting tube 10' of the second embodiment is in operation, taking the architecture of FIG. 6 as an example, which still performs the secondary amplifier 445' by the voltage of the output terminal 423' of the voltage converting unit 42'. In comparison, if the voltage of the output terminal 423' of the voltage converting unit 42' is a high voltage, the - terminal of the second-stage amplifier 445' is higher than the + terminal and outputs a negative voltage, thereby controlling the electronically controlled switch 46' to be non-conducting; The voltage of the output terminal 423' of the voltage converting unit 42' is a low voltage, and the terminal of the second stage amplifier 445' outputs a positive voltage, which is high and low, thereby controlling the electronically controlled switch 46' to be turned on. In the architecture of FIG. 7, the comparison of the amplifier 445' is still performed by the voltage of the output terminal 423' of the voltage converting unit 42', if the voltage of the output terminal 423' of the voltage converting unit 42' is high. The voltage is such that the - terminal of the amplifier 445' is higher than the + terminal and outputs a negative voltage, thereby controlling the electronically controlled switch 46' to be non-conducting; if the voltage of the output terminal 423' of the voltage converting unit 42' is low, the amplifier The - terminal of 445' outputs a positive voltage than the high level, thereby controlling the electronically controlled switch 46' to be turned on.
本第二實施例之其餘結構及所能達成之功效均概同於前揭第一實施例,容不再予贅述。The remaining structure of the second embodiment and the achievable effects are the same as those of the first embodiment, and will not be further described.
請再參閱第8圖,本發明第三較佳實施例所說明的一種可適用於家用日光燈具及較低電壓直流電燈具的LED照明燈管,主要概同於前揭第一實施例,不同之處在於:Please refer to FIG. 8 again, an LED lighting tube applicable to a household daylight lamp and a lower voltage DC lamp according to the third preferred embodiment of the present invention, which is mainly similar to the first embodiment disclosed above. It is:
該判斷單元44’’主要係由一微控制器所構成。The judging unit 44'' is mainly composed of a microcontroller.
此種結構在工作時,仍然是藉由該電壓轉換單元42’’的輸出端423’’電壓來進行判斷,若該電壓轉換單元42’’的輸出端423’’電壓為高電壓,則該微控制器控制該電控開關46’’不導通;若該電壓轉換單元42’’的輸出端423’’電壓為低電壓,則該微控制器控制該電控開關46’’導通。When the structure is in operation, it is still determined by the voltage of the output terminal 423'' of the voltage conversion unit 42''. If the voltage of the output terminal 423'' of the voltage conversion unit 42'' is a high voltage, the The microcontroller controls the electronically controlled switch 46'' to be non-conducting; if the voltage at the output 423'' of the voltage converting unit 42'' is a low voltage, the microcontroller controls the electronically controlled switch 46'' to conduct.
本第三實施例之其餘結構及所能達成之功效均概同於前揭第一實施例,容不再予贅述。The remaining structure of the third embodiment and the achievable effects are the same as those of the first embodiment, and will not be further described.
請再參閱第9圖至第10圖,本發明第四較佳實施例所說明的一種可適用於家用日光燈具及較低電壓直流電燈具的LED照明燈管10’’’,主要概同於前揭第一實施例,不同之處在於:Please refer to FIG. 9 to FIG. 10 again. The LED lighting tube 10′′′ applicable to household daylight lamps and lower voltage DC lamps is described in the fourth preferred embodiment of the present invention, which is mainly the same as before. The first embodiment is disclosed, with the following differences:
該該定電壓/定電流單元34’’’的輸出端343’’’係不電性連接於該複數LED發光體21’’’,該電控開關46’’’之開啟狀態係使該整流單元32’’’的輸出端323’’’以及該複數LED發光體21’’’之間開路,同時也使該定電壓/定電流單元34’’’之輸出端343’’’與該複數LED發光體21’’’之間通路;該電控開關46’’’之關閉狀態係使該整流單元32’’’的輸出端323’’’以及該複數LED發光體21’’’之間通路,同時也使該定電壓/定電流單元34’’’之輸出端343’’’與該複數LED發光體21’’’之間開路。The output end 343 ′′′ of the constant voltage/constant current unit 34 ′′′ is not electrically connected to the plurality of LED illuminators 21 ′′′, and the on state of the electronically controlled switch 46 ′′′ enables the rectification An output 323"' of the unit 32"' and an open circuit between the plurality of LED illuminators 21"', and also an output 343"' of the constant voltage/constant current unit 34"" and the plural a path between the LED illuminators 21""; the closed state of the electronically controlled switch 46"" is such that the output end 323"' of the rectifying unit 32"' and the plurality of LED illuminators 21"' The path also opens between the output terminal 343''' of the constant voltage/constant current unit 34''' and the complex LED illuminator 21"'.
藉此,在使用時,在使用高電壓電源時,該電控開關46’’’呈開啟狀態而使該整流單元32’’’與該複數LED發光體21’’’之間開路,同時也使該定電壓/定電流單元34’’’之輸出端343’’’與該複數LED發光體21’’’之間通路,該整流單元32’’’所輸出的電能不會直接流至該複數LED發光體21’’’,該定電壓/定電流單元34’’’即正常工作而驅動該複數LED發光體21’’’正常發光;而在使用低電壓電源時,該定電壓/定電流單元34’’’即無法正常工作,該選擇電路41’’’即控制該電控開關46’’’而使其關閉,進而使該整流單元32’’’與該複數LED發光體21’’’之間通路,同時也使該定電壓/定電流單元34’’’之輸出端343’’’與該複數LED發光體21’’’之間開路,該定電壓/定電流單元34’’’所轉換的電源即不會提供給該複數LED發光體21’’’,該整流單元32’’’所輸出之電能則能直接提供給該複數LED發光體21’’’,進而仍能驅動該複數LED發光體21’’’正常發光。Thereby, in use, when the high voltage power source is used, the electronically controlled switch 46"" is in an open state to open the rectifying unit 32"" and the plurality of LED illuminators 21"", and also The path between the output terminal 343 ′′′ of the constant voltage/constant current unit 34 ′′′′ and the plurality of LED illuminators 21 ′′′, the electric energy output by the rectifying unit 32 ′′′ does not directly flow to the The plurality of LED illuminators 21''', the constant voltage/constant current unit 34''' is normally operated to drive the plurality of LED illuminants 21''' to normally emit light; and when a low voltage power source is used, the constant voltage is set The current unit 34 ′′′ is not working properly, and the selection circuit 41 ′′′ controls the electronic control switch 46 ′′′ to turn it off, thereby making the rectifying unit 32 ′′′ and the plurality of LED illuminants 21 ′′ The ''between path also opens between the output terminal 343''' of the constant voltage/constant current unit 34''' and the complex LED illuminator 21'''. The constant voltage/constant current unit 34' ''The converted power supply will not be supplied to the complex LED illuminator 21'' The rectifying unit 32 '' 'of the output power can be directly supplied to the plurality of LED light emitter 21' '', in turn driving the plurality of LED light emission still 21 '' 'normal emitter.
本第四實施例之其餘結構及所能達成之功效均概同於前揭第一實施例,容不再予贅述。The rest of the structure and the achievable effects of the fourth embodiment are the same as those of the first embodiment, and will not be described again.
請再參閱第11圖,本發明第五較佳實施例所說明的一種可適用於家用日光燈具及較低電壓直流電燈具的LED照明燈管,主要概同於前揭第一實施例,不同之處在於:Please refer to FIG. 11 again, an LED lighting tube applicable to a household daylight lamp and a lower voltage DC lamp according to the fifth preferred embodiment of the present invention, which is mainly similar to the first embodiment disclosed above, and different It is:
該電壓轉換單元420係為一變壓器,其一次側之兩端分別連接於該整流單元的輸出端3230以及接地,而二次側之兩端則分別做為該輸出端4230以及接地,用以轉換該整流單元所輸出的電壓,其中,該整流單元概同於第一實施例之整流單元,因此不再於圖式中表示。The voltage conversion unit 420 is a transformer, and the two ends of the primary side are respectively connected to the output end 3230 of the rectifying unit and the ground, and the two ends of the secondary side are respectively used as the output end 4230 and the ground for conversion. The voltage output by the rectifying unit, wherein the rectifying unit is similar to the rectifying unit of the first embodiment, and therefore is not represented in the drawings.
在操作時,該電壓轉換單元420係將該整流單元的該輸出端3230所輸出的電壓進行變壓,而由該電壓轉換單元420的輸出端4230輸出轉變後的電壓。由於變壓器僅能固定比例的進行變壓,因此當該整流單元的輸出端3230所輸出的電壓不同時,該電壓轉換單元420所輸出的變壓後的電壓也會隨著不同,因此能達到如同第一實施例中所揭露的電壓轉換效果。In operation, the voltage conversion unit 420 transforms the voltage output by the output terminal 3230 of the rectifier unit, and the output terminal 4230 of the voltage conversion unit 420 outputs the converted voltage. Since the transformer can only be transformed in a fixed proportion, when the voltage outputted by the output terminal 3230 of the rectifying unit is different, the voltage after the voltage conversion outputted by the voltage converting unit 420 is also different, so The voltage conversion effect disclosed in the first embodiment.
本第五實施例之其餘結構及所能達成之功效均概同於前揭第一實施例,容不再予贅述。The rest of the structure and the achievable effects of the fifth embodiment are the same as those of the first embodiment, and will not be further described.
10‧‧‧可適用於家用日光燈具及較低電壓直流電燈具的LED照明燈管10‧‧‧LED lighting tubes for domestic daylight lamps and lower voltage DC lamps
11‧‧‧管體11‧‧‧Body
12‧‧‧導電銷12‧‧‧Conductive pin
21‧‧‧LED發光體21‧‧‧LED illuminator
31‧‧‧驅動電路31‧‧‧Drive circuit
32‧‧‧整流單元32‧‧‧Rectifier unit
321‧‧‧輸入端321‧‧‧ input
323‧‧‧輸出端323‧‧‧output
324‧‧‧接地端324‧‧‧ Grounding
34‧‧‧定電壓/定電流單元34‧‧‧Constant voltage/constant current unit
341‧‧‧輸入端341‧‧‧ input
343‧‧‧輸出端343‧‧‧output
344‧‧‧接地端344‧‧‧ Grounding terminal
41‧‧‧選擇電路41‧‧‧Selection circuit
42‧‧‧電壓轉換單元42‧‧‧Voltage conversion unit
423‧‧‧輸出端423‧‧‧ Output
44‧‧‧判斷單元44‧‧‧judging unit
445‧‧‧控制端445‧‧‧Control terminal
46‧‧‧電控開關46‧‧‧Electric switch
51‧‧‧定電流單元51‧‧‧Constant current unit
53‧‧‧升壓單元53‧‧‧Boost unit
T1‧‧‧電晶體T1‧‧‧O crystal
10’‧‧‧可適用於家用日光燈具及較低電壓直流電燈具的LED照明燈管10'‧‧‧LED lighting tubes for domestic daylight lamps and lower voltage DC lamps
11’‧‧‧管體11’‧‧‧ Body
12’‧‧‧導電銷12’‧‧‧Conductive pin
32’‧‧‧整流單元32'‧‧‧Rectifier unit
321’‧‧‧輸入端321'‧‧‧ input
42’‧‧‧電壓轉換單元42'‧‧‧Voltage conversion unit
423’‧‧‧輸出端423’‧‧‧ Output
44’‧‧‧判斷單元44’‧‧‧Judgement unit
445’‧‧‧放大器445'‧‧Amplifier
46’‧‧‧電控開關46’‧‧‧Electric switch
42’’‧‧‧電壓轉換單元42’’‧‧‧Voltage conversion unit
423’’‧‧‧輸出端423’’‧‧‧ output
44’’‧‧‧判斷單元44’’‧‧‧Judgement unit
46’’‧‧‧電控開關46’’‧‧‧Electric switch
10‘’’‧‧‧可適用於家用日光燈具及較低電壓直流電燈具的LED照明燈管10‘’’‧‧‧ LED lighting tubes for domestic daylighting and lower voltage DC lamps
21’’’‧‧‧LED發光體21’’’‧‧‧ LED illuminator
32’’’‧‧‧整流單元32’’’‧‧‧Rectifier unit
323’’’‧‧‧輸出端323’’’‧‧‧ Output
34’’’‧‧‧定電壓/定電流單元34’’’‧‧‧ ‧ constant voltage / constant current unit
343’’’‧‧‧輸出端343’’’‧‧‧ output
41’’’‧‧‧選擇電路41’’’‧‧‧Select circuit
46’’’‧‧‧電控開關46’’’‧‧‧Electric switch
3230‧‧‧輸出端3230‧‧‧ Output
420‧‧‧電壓轉換單元420‧‧‧Voltage conversion unit
4230‧‧‧輸出端4230‧‧‧ Output
第1圖係本發明第一較佳實施例之方塊示意圖。 第2圖係本發明第一較佳實施例之電路結構圖,顯示選擇電路的架構。 第3圖係本發明第一較佳實施例之另一方塊示意圖,顯示增設定電流單元的架構。 第4圖係本發明第一較佳實施例之再一方塊示意圖,顯示再增設升壓單元的架構。 第5圖係本發明第二較佳實施例之方塊示意圖。 第6圖係本發明第二較佳實施例之電路結構圖,顯示選擇電路的架構。 第7圖係本發明第二較佳實施例之電路結構圖,顯示選擇電路的另一種架構。 第8圖係本發明第三較佳實施例之電路結構圖,顯示選擇電路的架構。 第9圖係本發明第四較佳實施例之方塊示意圖。 第10圖係本發明第四較佳實施例之電路結構圖,顯示選擇電路的架構。 第11圖係本發明第五較佳實施例之電路結構圖,顯示選擇電路的架構。BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a block diagram showing a first preferred embodiment of the present invention. Figure 2 is a circuit diagram of a first preferred embodiment of the present invention showing the architecture of the selection circuit. Figure 3 is a block diagram showing another embodiment of the first preferred embodiment of the present invention showing the architecture of the set-up current unit. Figure 4 is a further block diagram showing the first preferred embodiment of the present invention, showing the architecture of the additional boosting unit. Figure 5 is a block diagram showing a second preferred embodiment of the present invention. Figure 6 is a circuit diagram showing a second preferred embodiment of the present invention, showing the architecture of the selection circuit. Figure 7 is a circuit diagram of a second preferred embodiment of the present invention showing another architecture of the selection circuit. Figure 8 is a circuit diagram showing a third preferred embodiment of the present invention, showing the architecture of the selection circuit. Figure 9 is a block diagram showing a fourth preferred embodiment of the present invention. Figure 10 is a circuit diagram showing a fourth preferred embodiment of the present invention, showing the architecture of the selection circuit. Figure 11 is a circuit diagram showing a fifth preferred embodiment of the present invention, showing the architecture of the selection circuit.
Claims (13)
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