TWM441986U - Lamp circuit - Google Patents

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Publication number
TWM441986U
TWM441986U TW101213656U TW101213656U TWM441986U TW M441986 U TWM441986 U TW M441986U TW 101213656 U TW101213656 U TW 101213656U TW 101213656 U TW101213656 U TW 101213656U TW M441986 U TWM441986 U TW M441986U
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Taiwan
Prior art keywords
circuit
zener diode
cathode
anode
terminal
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TW101213656U
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Chinese (zh)
Inventor
Chi-Hung Kuo
Ming-Huang Chen
Original Assignee
Sunon Electronics Foshan Co Ltd
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Application filed by Sunon Electronics Foshan Co Ltd filed Critical Sunon Electronics Foshan Co Ltd
Priority to TW101213656U priority Critical patent/TWM441986U/en
Priority to CN201210262467.4A priority patent/CN103547021A/en
Priority to CN 201220366572 priority patent/CN202773129U/en
Publication of TWM441986U publication Critical patent/TWM441986U/en

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Description

M441986 五、新型說明: 【新型所屬之技街領域】 . 本創作係關於一種燈具電路,尤其是一種具有額外之 V 定電壓輸出的燈具電路。 【先前技術】 請參照第1圖所示,習用燈具電路係包含一濾波整流 . 電路91、一發光模組92及一定電流電路93,該濾波整流 φ 電路91、發光模組92及定電流電路93依序串聯連接。該 濾波整流電路91可將交流電力轉換為直流電力,並將轉換 後的直流電力傳輸至該發光模組92 ;該發光模組92可為 一個或數個串接之發光二極體;該定電流電路93係控制通 過该發光模組92之電流,以維持該發光模組92的正常運 作。 當该發光模組92正常運作而發光時,會因為通電而 產生熱能,為避免該發光且92目高熱而加速損毀,一般 鲁 係另外増—散紐組94 ’ 散該發光模組%所產生 之熱能。 然而’錄熱換組94 -趣皆以直流電力驅動,且該 • 散熱換、址94與該發光模組92具有不同之電廢需求,故該 “ 散熱模組94所需之電力,並無法直接由該濾波整流電路 91供給,而必須另料置-電_換器%,以提供該散孰 模組94所需之驅動電力,如此1,將導致該燈具電路之 成本與電路複雜度增加。 【新型内容】 M441986 種燈具電路,該燈具電路 穩定電壓,且該定電壓輸 本創作之主要目的係提供— 具有一定電壓輸出電路以提供— 出電路具有較簡單之電路結構。 為達到前述創作目的,本創作之燈具電路,係 極端點及-陰極端點,該陽極端_接該濾波整流電路之 電力輸出端;-定電壓輸出電路,具有一齊納二極體,該 齊納二極體具有-陰極端及—陽極端,該齊納二極體之陰 極端耦接該發光模組之陰極端點,且該齊納二極體之陰極 端與陽極端共同形成一電壓輸出埠,·及—定電流電路,串 聯連接於該齊納二極體之陽極端及一接地端之間,以供一 固定電流流經該發光模組。 ' 本創作之燈具電路,其中該定電壓輸出電路具有—輔 助齊納二極體,該辅助齊納二極體之一陰極端耦接該齊納 二極體之陰極端,該辅助齊納二極體之一陽極端耦接該激 納二極體之陽極端。 本創作之燈具電路,其中該定電壓輸出電路之電壓 出埠供連接一散熱裝置。 Ί 本創作之燈具電路,係包含:一濾波整流電路,具有 -電力輸人端及-電力輪出端,以供由該電力輸出端輸出 直流電力;一發光模組,具有一陽極端點及—陰極端點; -定電壓輸出電路,具有—齊納二極體,該齊納二極體具 有-陰極端及-陽極端,且該齊納二極體之陰極端盘陽極 端共同形成-麵輸出埠,該齊納二極體之陰極端輕接該 —4 — 發光模組之陽極端點處形成—高 =輕接該發光模組之陰極端點處形成 柒耦接該濾波整流電路之電力輸—年 '问逐 串聯連接於該低壓端及-接地端之間,’以供 經該發光模組。 疋电训"〇· 限 本射之燈具電路,其切定電錄出魏包含一吸 壓皂阻,έ亥限壓電阻盘該齊+ 與低厂堅端之間。極體串聯連接於該高壓端 及具電路’其巾紐壓電_接於該高壓端 及§玄齊納二極體之陰極端之間。 ▲本創作之燈具電路,其中該限塵電阻耗接於該低壓端 及δ亥齊納一極體之陽極端之間。 【實施方式】 >為讓本創作之上述及其他目的、特徵及優點能更明顯 易懂,下文特舉本創作之較佳實闕,並配合所附圖式, 作詳細說明如下: 本創作王文所述之「_接」(_pnng),係指二元件 之間透過直接連接或間接連接,而使該三元件間具有相互 傳遞之訊號或電流的連接方式。 請參照第2圖所示,其係本創作之燈具電路第一實施 例,包含一濾波整流電路〗、一發光模組2、—定電壓輸出 電路3及m電路4,該毅整流電路I、發光模組2、 定電壓輸出電路3及定電流電路4依序串聯連接。 該濾波整流電路1具有一電力輸入端Π及一電力輸出 M441986 端12,該電力輸入端11以供連接一電源,且該電源可為 一交流電源,該濾波整流電路i可為一交流/直流轉換器, 以將該電力輸入端11所接收之—交流電力進行轉換,並於 該電力輸出端12輸出一直流電力。 該發光模組2可包含一個或數個發光二極體,並具有 一陽極端點21及一陰極端點22,該發光模組2之陽極端 點21雜接該滤波整流電路}之電力輸出端12,以接收該 濾波整流電路1所輸出之直流電力。 5亥疋電壓輸出電路3具有一齊納二極體31,該齊納二 極體31具有-陰極端311及一陽極端312,該齊納二極體 31之陰極端311 _該發光模組2之陰極端點22,且該齊 納二極體31之陰極端311與陽極端312共同形成一電壓輪 出埠30。由於該齊納二極體31之崩潰電壓為固定值,故 該齊納二極體31之陰極端311與陽極端312間具有固定之 電壓差,可於該電壓輪料3〇產生固定電壓之直流電力, 故該電壓輸出埠30可供連接—散熱裝置5,以提供 壓之直流電力使該散熱模組5正常運作,料㈣ : 置電壓轉換器或紐電路,以達到電路簡單化之效果二 中,該散熱裝置5可為—風扇或其他致冷組件,/、 設限。 亚不 該定電流電路4串聯連接於該齊納二極體3 g 端312及-接地端之間,以供一固定電流流經节,极 2 ’其中該定電流電路4可為習知電晶體與 合,在此並不設限。 氣略、% 輛马 請參照第3圖所示’該定電壓輪出電路]具有 背納二極體31,γ , ’该辅助齊納二極體31,並聯連接該齊納二 溆^ Μ即5亥辅助齊納二極體31,之一陰極端311,耦接該 ^二極體31之陰極端31卜該辅助齊納二極體31,之-極端312耦接該齊納二極體31之陽極端312。其中,該 山^納—極體31’之崩潰電壓較佳與該齊納二極體31之 Μ电麗相同。藉此’該定電壓輸出電路3之電壓輸出埠 $除:此提供固定電壓之直流電力外,當電流由該發光模 、=2机入錢電廢輸出電路3時,該電流可平均的流經該 極體31與該辅助齊納二極體31,,以避免過大之電 肌几王机入5亥齊納二極體31 ,具有保護該定電壓輸出電路 3之放果,此外’由於該定電壓輸出電路3具有該輔助齊 極體31,,令電流通過奴電壓輸出電路3時具有分 胤效果’可使本創作之燈具電路適祕具有較大電流需求 之發光模組2,以提升整體燈具電路之實用性。 請參照第4圖所其係本創作燈具電路第二實施 例二其中本實施顺前述之第—實關的差異在於:該發 光权組2並聯連接該定電壓輪出電路3,該定電流電路4 串聯連接於該發光模組2及接地端之間。. 更詳言之’該遽波整流電路j具有該電力輸入端η 及電力輸出端i2 ;該發光模組2具有該陽極端點21及陰 極端點22 ;該定電壓輸出電路3具有該齊納二極體31,該 齊納二極體具有該陰極端311及陽極端312,且該齊納 一極肢31之陰極端311與陽極端312共同形成該電壓輸出 埠30,該齊納二賴31之陰極端3ΐι耗接該發光模組2 之陽極端點21處形成—高㈣Η,該齊納二滅31之陽 端312麵接该發光模組2之陰極端點22處形成-低磨端 二該高_ Η墟魏波整流電路〗之電力輸出端12, ~疋二:路4串聯連接於該低壓端L及該接地端之間。 °亥定电壓輸出電路3較佳另具有一限壓電阻32,該限 ^阻32與該齊納二極體31串聯連接於該高塵端η與低 f端L之間’射,該隨電阻32可減於該齊納二極 \之陽極端312及該低㈣L之間,或如第4圖所示, „電阻32耦接於該齊納二極體3ι之陰極端sn及該 :坚端η之間,以調整該電壓輸出埠%所輸出之直流電 恭的包壓^該電壓輸出埠3G除了能產生固定電壓之直流 私力外’且藉由該限壓電阻32的電壓調整,可使該電壓輸 出槔30之電壓差小於該發光模組2間之電壓差,不須再額 外。又置a壓轉換皮電路以進行電壓的調整,即可驅 動具有相龍小電壓需求之散齡置5,以達到電路簡單 化之效果。 另本創作燈具電路第二實施例之該定電壓輸出電路 3J亦可如第3圖所示’設有該輔助齊納二極體,且該輔助 背納二極體之連接方式與規格選擇係與第—實施例相同, 於此不再贅述。 本創作之燈具電路,具有用以輸出固定電壓之直流電 力的定電壓輸出·’且該定€壓輪出電路具有較簡單之 電路結構,具有降低電路複雜度之功效。 雖然本創作已利用上述較佳實施例揭示,铁直並非用 以限定本創作,任何熟習此㈣者在不麟本創作之精神 和範圍之内,城上述實_進行各較動與修改仍屬本 —8 — M441986 創作所保護之技術範疇,因此本創作之保護範圍當視後附 之申請專利範圍所界定者為準。 【圖式簡單說明】 第1圖:習知燈具電路方塊圖。 第2圖:本創作燈具電路之電路結構第一實施例。 第3圖:本創作燈具電路之電路結構第一實施例。 第4圖:本創作燈具電路之電路結構第二實施例。 【主要元件符號說明】 〔本創作〕 1 濾波整流電路 11 電力輸入端 12 電力輸出端 2 發光模組 21 陽極端點 22 陰極端點 3 定電壓輸出電路 30 電壓輸出埠 31 背納二極體 31, 輔助齊納二極體 311 陰極端 311, 陰極端 312 陽極端 312, 陽極端 32 限壓電阻 4 定電流電路 5 散熱裝置 Η 高壓端 L 低壓端 M441986 〔習知〕 91 濾波整流電路 92 發光模組 93 定電流電路 94 散熱模組 95 電壓轉換器M441986 V. New description: [New technology street area] This creation is about a luminaire circuit, especially a luminaire circuit with an additional V constant voltage output. [Prior Art] Referring to FIG. 1 , the conventional lamp circuit includes a filter rectification circuit 91, a light-emitting module 92, and a constant current circuit 93. The filter rectification φ circuit 91, the light-emitting module 92, and the constant current circuit 93 is connected in series in series. The filter rectifier circuit 91 converts the AC power into DC power and transmits the converted DC power to the LED module 92. The LED module 92 can be one or several LEDs connected in series; The current circuit 93 controls the current through the lighting module 92 to maintain the normal operation of the lighting module 92. When the illuminating module 92 is normally operated to emit light, heat energy is generated due to energization, and in order to avoid the illuminating and 92-head high heat, the damage is accelerated, and generally the 増-散 组 组 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 The heat. However, the 'hot recording group 94' is interesting to be driven by DC power, and the heat dissipation, address 94 and the lighting module 92 have different electrical waste requirements, so the power required for the heat dissipation module 94 cannot be Directly supplied by the filter rectifier circuit 91, and must be separately charged to provide the driving power required by the heat dissipation module 94. Thus, the cost and circuit complexity of the lamp circuit will increase. [New content] M441986 kind of lamp circuit, the lamp circuit stabilizes the voltage, and the main purpose of the constant voltage input is to provide - a certain voltage output circuit to provide - the circuit has a relatively simple circuit structure. Purpose, the lamp circuit of the present invention is an extreme point and a cathode end point, the anode end is connected to the power output end of the filter rectifier circuit; and the constant voltage output circuit has a Zener diode, the Zener diode a cathode end and an anode end, the cathode end of the Zener diode is coupled to the cathode end of the light emitting module, and the cathode end and the anode end of the Zener diode form a voltage output And a constant current circuit connected in series between the anode terminal of the Zener diode and a ground terminal for a fixed current to flow through the light emitting module. 'The lamp circuit of the present invention, wherein the constant voltage The output circuit has an auxiliary Zener diode, and one cathode end of the auxiliary Zener diode is coupled to the cathode end of the Zener diode, and one anode end of the auxiliary Zener diode is coupled to the excitation node The anode of the pole body. The lamp circuit of the present invention, wherein the voltage of the constant voltage output circuit is connected to a heat sink. Ί The lamp circuit of the present invention comprises: a filter rectifier circuit having a power input terminal and a power wheel outlet for outputting DC power from the power output terminal; a lighting module having an anode terminal and a cathode terminal; a constant voltage output circuit having a Zener diode, the Zener diode The pole body has a cathode end and an anode end, and the anode end of the cathode end plate of the Zener diode forms a surface output 埠, and the cathode end of the Zener diode is lightly connected to the illuminating module Formed at the end of the anode - high = lightly connected At the cathode end of the optical module, a power transmission coupled to the filter rectifier circuit is formed, and a series connection is made between the low voltage terminal and the ground terminal, for supplying the light emitting module. ;〇· Limiting the lighting circuit of the luminaire, which is determined to contain a pressure-absorbing soap resistance, and the 限海 voltage limiting resistor is between the + and the low-end rigor. The pole body is connected in series to the high-voltage end. The circuit 'with its new piezoelectric _ is connected between the high voltage end and the cathode end of the § Xuan Zener diode. ▲ The lamp circuit of the present invention, wherein the dust limit resistor is consumed at the low voltage end and δ haiqi Between the anode and the anode of the nano-electrode. [Embodiment] > In order to make the above and other objects, features and advantages of the present invention more obvious and easy to understand, the following is a better example of the creation and the accompanying The figure is described in detail as follows: The "_png" (_pnng) described in the creation of Wang Wen refers to the direct connection or indirect connection between two components, so that the three components have signals or currents transmitted between each other. Connection method. Please refer to FIG. 2 , which is a first embodiment of the lamp circuit of the present invention, comprising a filter rectifier circuit, a light-emitting module 2, a constant voltage output circuit 3 and an m circuit 4, and the rectifier circuit I, The light-emitting module 2, the constant voltage output circuit 3, and the constant current circuit 4 are connected in series in series. The filter rectifier circuit 1 has a power input port and a power output M441986 terminal 12, the power input terminal 11 is connected to a power source, and the power source can be an AC power source, and the filter rectifier circuit i can be an AC/DC. The converter converts the AC power received by the power input terminal 11 and outputs the DC power at the power output terminal 12. The illuminating module 2 can include one or more illuminating diodes, and has an anode end point 21 and a cathode end point 22. The anode end point 21 of the illuminating module 2 is connected to the power output end of the filter rectifying circuit. 12, to receive the DC power output by the filter rectifier circuit 1. The 5 疋 voltage output circuit 3 has a Zener diode 31 having a cathode end 311 and an anode end 312, and a cathode end 311 of the Zener diode 31. The cathode end 22 and the cathode end 311 of the Zener diode 31 together with the anode end 312 form a voltage wheel 埠 30. Since the breakdown voltage of the Zener diode 31 is a fixed value, the Zener diode 31 has a fixed voltage difference between the cathode terminal 311 and the anode terminal 312, and a fixed voltage can be generated in the voltage roller 3〇. DC power, so the voltage output 埠30 can be connected to the heat sink 5 to provide the DC power of the voltage to make the heat dissipation module 5 operate normally. (4): Set the voltage converter or the circuit to achieve the circuit simplification effect. In the second, the heat sink 5 can be a fan or other refrigeration component, and is limited. The current circuit 4 is connected in series between the Zener diode 3 g terminal 312 and the ground terminal for a fixed current to flow through the node, the pole 2 'where the constant current circuit 4 can be a conventional power Crystals and combinations are not limited here. For the gas, please refer to the 'the fixed voltage wheel circuit' shown in Fig. 3 for the horse. The anode Zener diode 31, γ, 'the auxiliary Zener diode 31 is connected in parallel to the Zener diode 溆That is, the 5H auxiliary Zener diode 31, one of the cathode ends 311, is coupled to the cathode end 31 of the diode 31, the auxiliary Zener diode 31, and the - terminal 312 is coupled to the Zener diode The anode end 312 of the body 31. The breakdown voltage of the mountain-pole body 31' is preferably the same as that of the Zener diode 31. By this, the voltage output of the constant voltage output circuit 3 is divided by: this provides a fixed voltage, and the current can be averaged when the current is supplied by the light-emitting mode and the machine into the waste output circuit 3. The pole body 31 and the auxiliary Zener diode 31 are used to prevent the excessively large electric muscle from entering the 5th core Zener 31, and the protection of the constant voltage output circuit 3 is provided. The constant voltage output circuit 3 has the auxiliary parallel body 31, and has a branching effect when the current passes through the slave voltage output circuit 3, so that the lighting circuit of the present invention can be adapted to have a large current demand, and the light emitting module 2 can Improve the practicality of the overall luminaire circuit. Please refer to FIG. 4 for the second embodiment of the present luminaire circuit. The difference between the present embodiment and the first one is that the illuminating power group 2 is connected in parallel to the constant voltage wheel circuit 3, and the constant current circuit 4 is connected in series between the light emitting module 2 and the ground. More specifically, the chopper rectifier circuit j has the power input terminal η and the power output terminal i2; the illumination module 2 has the anode end point 21 and the cathode end point 22; the constant voltage output circuit 3 has the same a nano-diode 31 having the cathode end 311 and the anode end 312, and the cathode end 311 of the Zener-pole 31 and the anode end 312 together form the voltage output port 30, the Zener II The anode end of the Lai 31 is 3ΐι, and the anode end 21 of the illumination module 2 is formed to form a high (four) crucible. The anode end 312 of the Zener diode 31 is connected to the cathode end 22 of the illumination module 2 to form a low Grinding end two high _ Η 魏 Weibo rectifier circuit〗 power output 12, ~ 疋 2: Road 4 is connected in series between the low-voltage end L and the ground. The threshold voltage output circuit 3 preferably has a voltage limiting resistor 32, and the limiting resistor 32 is connected in series with the Zener diode 31 between the high dust terminal η and the low f terminal L. The resistor 32 can be reduced between the anode terminal 312 of the Zener diode and the low (four) L, or as shown in FIG. 4, the resistor 32 is coupled to the cathode terminal sn of the Zener diode 3 and the: Between the hard ends η, the DC voltage outputted by the voltage output 埠% is adjusted. The voltage output 埠3G is in addition to the DC private force of the fixed voltage, and the voltage of the voltage limiting resistor 32 is adjusted. The voltage difference between the voltage output 槔30 can be made smaller than the voltage difference between the illuminating modules 2, and no additional need is needed. The voltage conversion circuit can be adjusted to adjust the voltage, so that the voltage with the small voltage requirement of the phase can be driven. The age is set to 5 to achieve the effect of simplifying the circuit. The constant voltage output circuit 3J of the second embodiment of the present lamp circuit can also be provided with the auxiliary Zener diode as shown in Fig. 3, and the auxiliary The connection mode and specification selection of the diaper diode are the same as those of the first embodiment, and will not be described here. The lamp circuit has a constant voltage output for outputting a fixed voltage DC power and the circuit has a relatively simple circuit structure, which has the effect of reducing circuit complexity. The preferred embodiment reveals that the iron straight is not intended to limit the creation of this work. Anyone who is familiar with this (4) is not within the spirit and scope of the creation of the book, and the above-mentioned actual changes and modifications are still in the same form. 8 - M441986 The technical scope of protection, therefore, the scope of protection of this creation is subject to the definition of the patent application scope attached. [Simple description of the diagram] Figure 1: Block diagram of the conventional lighting circuit. Figure 2: The circuit of the creation of the lamp The first embodiment of the circuit structure. Fig. 3: The first embodiment of the circuit structure of the circuit of the present luminaire. Fig. 4: The second embodiment of the circuit structure of the circuit of the luminaire. [Description of main components] [This creation] 1 Filter rectifier circuit 11 Power input terminal 12 Power output terminal 2 Light-emitting module 21 Anode terminal 22 Cathode terminal 3 Constant voltage output circuit 30 Voltage output 埠31 Back-up diode 31, auxiliary Zener diode 311 cathode terminal 311, cathode terminal 312 anode terminal 312, anode terminal 32 voltage limiting resistor 4 constant current circuit 5 heat sink Η high voltage end L low-voltage end M441986 [General] 91 Filter rectifier circuit 92 illumination module 93 constant current circuit 94 heat dissipation module 95 voltage converter

Claims (1)

M441986 六、申請專利範圍: ——種燈具電路,係包含: 一濾波整流電路,具有一電力輸入端及—恭— 以供由該電力輸出端輸出直流電力;包力輪出端, 一發光模組,具有一陽極端點及一陰極端點,= 點耦接該濾波整流電路之電力輸出端;〃該陽極端 疋電壓輸出電路,具有一齊納二極體,該澈名 .具有-陰極端及一陽極端,該齊納二極:二卜極體 她之陰極端點,且該齊納二極體之 極埏共同形成一電壓輸出埠;及 "、除 2 4 流電路,㈣連接於該齊納二極體之陽極端及— &之間’以供—固定電流流軸發光模組。 利範圍^項所述之燈具電路,其中該定電壓 .电路具有—辅助齊納二極體,該辅助齊納二極體之 陰極,_該齊納二極體之陰極端,該辅助齊納二極 之陽極端耦接該齊納二極體之陽極端。 利範圍第丨項所述之燈具電路,其巾該定電壓 二电路之電壓輸出埠供連接一散熱裳置。 —種燈具電路’係包含: 電路’具有-電力輸入端及-電力輸出端, 电力輪出端輪出直流電力; ^光松組,具有—陽極端點及-陰極端點; 具:電路,具有-齊納二極體,該齊納二極體 吾°端及一陽極端,且該齊納二極體之陰極端與 —II — M441986 陽極端共同形成H輸料,該齊納: 搞接該發_組之陽極端點處形成—高 極體之陽極端_該發光模組之陰極却M441986 VI. Scope of application for patents: - A type of luminaire circuit, comprising: a filter rectifier circuit having a power input terminal and - Christine - for outputting DC power from the power output terminal; The group has an anode end point and a cathode end point, and the point is coupled to the power output end of the filter rectifier circuit; the anode end voltage output circuit has a Zener diode, the name has a cathode end and An anode end, the Zener diode: the second terminal of the cathode of the dipole, and the poles of the Zener diode together form a voltage output 埠; and ", except for the 2 4 flow circuit, (4) is connected to the The anode end of the Zener diode and the - & between - for fixed current flow axis illumination module. The luminaire circuit of the item, wherein the constant voltage circuit has an auxiliary Zener diode, a cathode of the auxiliary Zener diode, a cathode end of the Zener diode, and the auxiliary Zener The anode end of the diode is coupled to the anode end of the Zener diode. The luminaire circuit of the third aspect of the invention, wherein the voltage output of the constant voltage two circuit is connected to a heat sink. A type of luminaire circuit includes: a circuit having a power input terminal and a power output terminal, and a power wheel outputting a DC power; a light pine group having an anode terminal and a cathode terminal; Having a Zener diode, a Zener diode and an anode terminal, and a cathode end of the Zener diode and a cathode of the II-M441986 form a H feed, the Zener: Forming at the anode end of the _ group - the anode end of the high pole body _ the cathode of the illuminating module 以供-固定m經該發光模組。 二極體之陰極端 b壓端,該齊納二 L陰極端點處形成一低 电路之電力輸出端;及 壓端及一接地端之間, 5如申明專利範圍第4項所述之燈具電路,其中該定電壓 輸出電路包含-限麼電阻,該限屋電阻與該齊納二極體 串聯連接於該高壓端與低壓端之間。 6、 如申請專利範圍第$項所述之燈具電路,其中該限壓電 阻轉接於該高壓端及該齊納二極體之陰極端之間。 7、 如申睛專利範圍第5項所述之燈具電路’其中該限壓電 阻截接於該低壓端及該齊納二極體之陽極端之間。 8、 如申請專利範圍第4、5、6或7項所述之燈具電路,其 中該定電壓輪出電路具有一輔助齊納二極體’該辅助齊 納二極體之一陰極端耦接該齊納二極體之陰極端,該輔 助背納二極體之一陽極端麵接該齊納二極體之陽極端。 9、 如申請專利範圍第4項所述之燈具電路’其中該定電壓 輸出電路之電壓輸·出埠供連接一散熱裝置。For the fixed-m through the light-emitting module. a cathode end b end of the diode, a low-circuit power output end formed at the end of the Zener II L cathode; and a lamp end and a ground end, 5, as claimed in claim 4 The circuit, wherein the constant voltage output circuit includes a limiting resistor, and the limiting resistor is connected in series with the Zener diode between the high voltage end and the low voltage end. 6. The luminaire circuit of claim 1, wherein the piezoelectric resistance is transferred between the high voltage end and a cathode end of the Zener diode. 7. The luminaire circuit of claim 5, wherein the piezoelectric barrier is intercepted between the low voltage terminal and an anode terminal of the Zener diode. 8. The luminaire circuit of claim 4, 5, 6 or 7 wherein the constant voltage wheel-out circuit has an auxiliary Zener diode coupled to one of the auxiliary Zener diodes The cathode end of the Zener diode has an anode end face of the auxiliary back-up diode connected to the anode end of the Zener diode. 9. The luminaire circuit of claim 4, wherein the voltage output circuit of the constant voltage output circuit is connected to a heat sink.
TW101213656U 2012-07-16 2012-07-16 Lamp circuit TWM441986U (en)

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CN201210262467.4A CN103547021A (en) 2012-07-16 2012-07-26 Lamp circuit
CN 201220366572 CN202773129U (en) 2012-07-16 2012-07-26 Lamp circuit

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CN201887972U (en) * 2010-12-03 2011-06-29 上海嘉塘电子有限公司 Special power conversion circuit for LEDs
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