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TWI508615B - Active self-regulating circuit - Google Patents

Active self-regulating circuit Download PDF

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Publication number
TWI508615B
TWI508615B TW102119816A TW102119816A TWI508615B TW I508615 B TWI508615 B TW I508615B TW 102119816 A TW102119816 A TW 102119816A TW 102119816 A TW102119816 A TW 102119816A TW I508615 B TWI508615 B TW I508615B
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TW
Taiwan
Prior art keywords
regulating circuit
resistor
diode
active
bridge rectifier
Prior art date
Application number
TW102119816A
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Chinese (zh)
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TW201448659A (en
Inventor
Jin Fa Li
Original Assignee
Jin Fa Li
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Publication date
Application filed by Jin Fa Li filed Critical Jin Fa Li
Priority to TW102119816A priority Critical patent/TWI508615B/en
Priority to CN201310507480.6A priority patent/CN104219827A/en
Priority to GB1409892.5A priority patent/GB2514929A/en
Publication of TW201448659A publication Critical patent/TW201448659A/en
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Publication of TWI508615B publication Critical patent/TWI508615B/en

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    • 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
    • H05B31/00—Electric arc lamps
    • H05B31/48—Electric arc lamps having more than two electrodes
    • H05B31/50—Electric arc lamps having more than two electrodes specially adapted for AC
    • 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
    • H05B45/357—Driver circuits specially adapted for retrofit LED light sources
    • H05B45/3574—Emulating the electrical or functional characteristics of incandescent lamps
    • H05B45/3575—Emulating the electrical or functional characteristics of incandescent lamps by means of dummy loads or bleeder circuits, e.g. for dimmers
    • 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
    • H05B45/37—Converter 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
    • 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
    • H05B45/395—Linear regulators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

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

Description

主動式自我調節電路Active self-regulating circuit

本發明涉及一種調光電路，特別涉及一種主動式自我調節電路。The invention relates to a dimming circuit, in particular to an active self-regulating circuit.

目前交流三端雙向交流開關(TRIAC，三端雙向交流開關實質上是雙向晶閘管，其是在普通晶閘管的基礎上發展起來的，其不僅能代替兩隻反極性並聯的晶閘管，而且僅用一個觸發電路)調光器應用於傳統燈具或LED(發光二極體)燈具上，三端雙向交流開關調光器需要一個最小的維持電流，以維持三端雙向交流開關能正常導通工作，為了產生這一最小的維持電流，會造成燈具效率過低及最小導通角維持電流無法連續和維持電流不足，造成燈具閃爍，影響燈具的使用壽命。目前業界使用RC(相移電路)充放電的特性產生維持電流，因此在AC(交流電源)交流頻率整個工作週期皆會產生維持電流，造成發光二極體驅動器效率低及三端雙向交流開關最小導通角度，輸入電壓過低造成維持電流不足。At present, the AC three-terminal bidirectional AC switch (TRIAC, the three-terminal bidirectional AC switch is essentially a bidirectional thyristor, which is developed on the basis of a common thyristor, which can replace not only two thyristors connected in parallel, but also one trigger. Circuit) dimmers are used in conventional luminaires or LED (light-emitting diode) luminaires. The three-terminal bidirectional AC switch dimmer requires a minimum holding current to maintain the three-terminal bidirectional AC switch to operate normally, in order to generate this A minimum holding current will cause the lamp to be too inefficient and the minimum conduction angle to maintain the current cannot be continuous and the current is insufficient, causing the lamp to flicker and affect the service life of the lamp. At present, the industry uses RC (phase-shift circuit) charging and discharging characteristics to generate a holding current, so the AC (AC power) AC frequency will generate a holding current throughout the working cycle, resulting in low efficiency of the LED driver and the minimum of the three-terminal bidirectional AC switch. The conduction angle, the input voltage is too low, resulting in insufficient current.

本發明的目的就是針對現有技術存在的上述缺陷，提供一種主動式自我調節電路。The object of the present invention is to provide an active self-regulating circuit for the above-mentioned drawbacks of the prior art.

本發明之主動式自我調節電路，其包括交流電源、橋式整流器、發光二極體驅動單元、發光二極體以及主動泄流調節電路；其中該交流電源經橋式整流器連接發光二極體驅動單元，該發光二極體驅動單元的兩端並聯多個發光二極體，該橋式整流器和發光二極體驅動單元之間串聯主動泄流調節電路；其中該主動泄流調節電路包括有二極體、電阻、穩壓二極體、多數相互連接的三極管；其中三極管並聯電阻和穩壓二極體。The active self-regulating circuit of the invention comprises an alternating current power source, a bridge rectifier, a light emitting diode driving unit, a light emitting diode and an active leakage regulating circuit; wherein the alternating current power source is connected to the light emitting diode through the bridge rectifier a plurality of light emitting diodes are connected in parallel between the two ends of the LED driving unit, and an active leakage regulating circuit is connected between the bridge rectifier and the LED driving unit; wherein the active leakage regulating circuit includes two A polar body, a resistor, a voltage stabilizing diode, and a plurality of interconnected transistors; wherein the triode has a parallel resistance and a voltage stabilizing diode.

較佳地，上述的電阻和二極體串聯在橋式整流器的輸出端。Preferably, the resistor and the diode are connected in series at the output of the bridge rectifier.

上述的三極管並聯在橋式整流器的輸出線路中。The above-mentioned triode is connected in parallel in the output line of the bridge rectifier.

上述的穩壓二極體與發光二極體驅動單元之間設有電阻。A resistor is disposed between the above-mentioned voltage stabilizing diode and the LED driving unit.

上述的電阻的兩端並聯電容。A capacitor is connected in parallel at both ends of the above resistor.

上述的電阻為可調節電阻。The above resistor is an adjustable resistor.

本發明之主動式自我調節電路所帶來的有益效果是，主動式自我調節電路，包含泄流調節電路，根據交流三端雙向交流開關(TRIAC)維持電流及系統總電流、調節動能調節器、開關導通時間，在當系統總電流小於最小維持電流時，增加驅動信號導通時間，使流過三端雙向交流開關線路的電流回升到維持電流的水準，以維持三端雙向交流開關的正常導通，提升發光二極體調節驅動器的效率，增加三端雙向交流開關調光器的匹配性。The beneficial effect of the active self-regulating circuit of the invention is that the active self-regulating circuit comprises a bleed regulating circuit, and the current and the total system current are regulated according to the AC three-terminal bidirectional alternating current switch (TRIAC), and the kinetic energy regulator is adjusted. The on-time of the switch increases the conduction time of the driving signal when the total current of the system is less than the minimum holding current, so that the current flowing through the three-terminal bidirectional AC switching circuit rises to the level of the holding current to maintain the normal conduction of the three-terminal bidirectional AC switch. Improve the efficiency of the LED adjustment drive and increase the matching of the three-terminal bidirectional AC switch dimmer.

1‧‧‧交流電源1‧‧‧AC power supply

2‧‧‧橋式整流器2‧‧‧Bridge rectifier

3‧‧‧發光二極體3‧‧‧Lighting diode

4‧‧‧二極體4‧‧‧ diode

5、6、7、12‧‧‧電阻5, 6, 7, 12‧‧‧ resistance

8、9‧‧‧穩壓二極體8, 9‧‧‧ Regulators

10、11‧‧‧三極管10, 11‧‧‧ triode

13‧‧‧電容13‧‧‧ Capacitance

第一圖是現有調節電路的結構示意圖；第二圖是本發明的結構示意圖；第三圖是本發明的系統方塊圖；第四圖是系統架構圖；第五圖是系統電流波形圖；第六圖是交流電源AC波形圖。The first figure is a schematic structural view of an existing adjustment circuit; the second figure is a schematic structural view of the present invention; the third figure is a system block diagram of the present invention; the fourth figure is a system architecture diagram; and the fifth figure is a system current waveform diagram; The six figures are AC waveforms of the AC power supply.

以下藉由圖式說明本發明之構造、特點及實施例，以使貴審查人員對本發明有更進一步之瞭解。The structure, features and embodiments of the present invention are described in the following drawings to provide a further understanding of the present invention.

請參照第一至六圖，本發明包括交流電源1、橋式整流器2、發光二極體驅動單元、發光二極體3、主動泄流調節電路，交流電源1經橋式整流器2連接發光二極體驅動單元，該發光二極體驅動單元的兩端並聯多個發光二極體3，該橋式整流器2和發光二極體驅動單元之間串聯主動泄流調節電路；該主動泄流調節電路包括二極體4，電阻5、6、7，穩壓二極體8、9，三極管10、11，三極管10連接三極管11，該三極管10上並聯電阻5和穩壓二極體9，三極管11上並聯電阻6和穩壓二極體8。其中的電阻7和二極體4串聯在橋式整流器的輸出端。其中的三極管10、三極管11並聯在橋式整流器的輸出線路中。其中的穩壓二極體9與發光二極體驅動單元之間設有電阻12。其中的電阻7的兩端並聯電容13。其中的電阻5、6、7、12為可調節電阻。Please refer to the first to sixth figures, the present invention includes an AC power source 1, a bridge rectifier 2, a light emitting diode driving unit, a light emitting diode 3, an active discharge regulating circuit, and the AC power source 1 is connected to the light emitting diode 2 via the bridge rectifier 2 a polar body driving unit, a plurality of light emitting diodes 3 are connected in parallel at both ends of the light emitting diode driving unit, and an active leakage regulating circuit is connected in series between the bridge rectifier 2 and the light emitting diode driving unit; The circuit comprises a diode 4, resistors 5, 6, and 7, a voltage regulator diode 8, 9 and a transistor 10, 11. The transistor 10 is connected to the transistor 11, and the resistor 10 and the voltage regulator diode 9 are connected in parallel to the transistor 10, and the transistor 11 is connected in parallel with the resistor 6 and the voltage stabilizing diode 8. The resistor 7 and the diode 4 are connected in series at the output of the bridge rectifier. The triode 10 and the triode 11 are connected in parallel in the output line of the bridge rectifier. A resistor 12 is disposed between the stabilizing diode 9 and the LED driving unit. A capacitor 13 is connected in parallel across the resistor 7. The resistors 5, 6, 7, 12 are adjustable resistors.

藉由本發明之主動式自我調節電路，當系統電流變小 時，流過電阻7的電流變小，當電阻7壓降小於三極管11的VBE時，三極管10導通，此時交流電源1透過三極管10流過電阻6，增加交流電源1電流大於三端雙向交流開關(TRIAC)的最小維持電流，使燈具可以正常工作不閃爍。With the active self-regulating circuit of the present invention, when the system current becomes smaller When the voltage flowing through the resistor 7 becomes smaller, when the voltage drop of the resistor 7 is less than the VBE of the transistor 11, the transistor 10 is turned on. At this time, the AC power source 1 flows through the resistor 6 through the transistor 10, increasing the current of the AC power source 1 to be greater than the three-terminal bidirectional AC. The minimum holding current of the switch (TRIAC) allows the luminaire to operate normally without flickering.

當系統電流變大時，流過電阻7的電流變大，當電阻7壓降大於三極管11的VBE時，三極管10截止。When the system current becomes large, the current flowing through the resistor 7 becomes large, and when the voltage drop of the resistor 7 is larger than the VBE of the transistor 11, the transistor 10 is turned off.

當發光二極體驅動單元形成斷路時，造成輸出呈現空載狀態，此時電壓V1經過電阻5、12分壓，當分壓大於穩壓二極體9的崩潰電壓時，會觸發三極管11導通，三極管10截止，減少主動泄流調節电流降低空載損耗。When the LED driving unit forms an open circuit, the output assumes a no-load state. At this time, the voltage V1 is divided by the resistors 5 and 12. When the partial voltage is greater than the breakdown voltage of the Zener diode 9, the transistor 11 is triggered to be turned on. The transistor 10 is cut off to reduce the active discharge regulation current and reduce the no-load loss.

不論使用那種發光二極體驅動器，只有在消耗功率時，交流電源才會產生電流流過三端雙向交流開關調光器，所以當系統電流變小時，AC電流將會小於三端雙向交流開關調光器最小維持電流，系統總電流偵測到系統電流小於最小維持電流，此時主動泄流調節電路將會啟動，透過三極管10通道，對交流電源抽取電流，增加最小維持電流，使三端雙向交流開關調光器正常工作，當LED載端形成空載狀態時，LED空載偵測單元會驅使主動泄流調節電路控制單元關掉三極管10，減少整個發光二極體的空載損耗，達到節能的目的。Regardless of the type of LED driver used, only when the power is consumed, the AC power will flow through the three-terminal bidirectional AC switch dimmer, so when the system current becomes small, the AC current will be less than the three-terminal bidirectional AC switch. The minimum current of the dimmer is maintained, and the total current of the system detects that the system current is less than the minimum holding current. At this time, the active bleed regulation circuit will start, and the current is extracted from the AC power through the 10-channel of the triode, and the minimum holding current is increased to make the three-terminal The bidirectional AC switch dimmer works normally. When the LED carrier end is in no-load state, the LED no-load detection unit drives the active bleed regulation circuit control unit to turn off the triode 10, reducing the no-load loss of the entire illuminating diode. To achieve the purpose of energy saving.

主動式自我調節維持電流電路，包含泄流調節電路，根據交流三端雙向交流開關維持電流及系統總電流，動能調節器、開關導通時間，主動式自我調節維持電流電路會在當系統總電流小於最小維持電流時，增加驅動信號導通時間，使流過三端雙向交流開關線路的電流回升到維持電 流的水準，以維持三端雙向交流開關的正常導通。Active self-regulating and maintaining current circuit, including bleed regulation circuit, maintaining current and total system current according to AC three-terminal bidirectional AC switch, kinetic energy regulator, switch on-time, active self-regulating and maintaining current circuit when the total current of the system is less than When the minimum holding current is increased, the driving signal conduction time is increased, so that the current flowing through the three-terminal bidirectional AC switching line is raised to maintain the electric current. The level of flow to maintain the normal conduction of the three-terminal bidirectional AC switch.

以上所述者，僅為本發明的一個較佳可行的實施例而已，非因此就限制了本發明之權利保護範圍，凡是運用本發明說明書及圖式內容所為之等效變化，均包含於本發明之權利保護範圍內。The above description is only a preferred embodiment of the present invention, and thus the scope of the present invention is not limited thereto, and equivalent variations of the present invention and the contents of the drawings are included in the present invention. Within the scope of the protection of the invention.

1‧‧‧交流電源1‧‧‧AC power supply

2‧‧‧橋式整流器2‧‧‧Bridge rectifier

3‧‧‧發光二極體3‧‧‧Lighting diode

4‧‧‧二極體4‧‧‧ diode

5、6、7、12‧‧‧電阻5, 6, 7, 12‧‧‧ resistance

8、9‧‧‧穩壓二極體8, 9‧‧‧ Regulators

10、11‧‧‧三極管10, 11‧‧‧ triode

13‧‧‧電容13‧‧‧ Capacitance

Claims (5)

一種主動式自我調節電路，主動式自我調節電路，其包括交流電源、橋式整流器、發光二極體驅動單元、發光二極體以及主動泄流調節電路；其中該交流電源經橋式整流器連接發光二極體驅動單元，該發光二極體驅動單元的兩端並聯多個發光二極體，該橋式整流器和發光二極體驅動單元之間串聯主動泄流調節電路；其中該主動泄流調節電路包括有二極體、電阻、穩壓二極體、多數相互連接的三極管；其中三極管並聯電阻和穩壓二極體；所述電阻和二極體串聯在橋式整流器的輸出端 。An active self-regulating circuit, an active self-regulating circuit, comprising an alternating current power source, a bridge rectifier, a light emitting diode driving unit, a light emitting diode and an active leakage regulating circuit; wherein the alternating current power source is connected to the light through a bridge rectifier a diode driving unit, a plurality of light emitting diodes are connected in parallel at two ends of the LED driving unit, and an active leakage regulating circuit is connected between the bridge rectifier and the LED driving unit; wherein the active leakage regulation circuit comprises a diode, resistor, zener diode, triode most interconnected; wherein the shunt resistor and the transistor regulator diodes; the resistor and diode connected in series at the output of the bridge rectifier. 如申請專利範圍第1項所述的主動式自我調節電路，其中至少一三極管並聯在橋式整流器的輸出線路中。 The active self-regulating circuit of claim 1, wherein at least one of the transistors is connected in parallel to the output line of the bridge rectifier. 如申請專利範圍第1項所述的主動式自我調節電路，其中該穩壓二極體與發光二極體驅動單元之間設有電阻。 The active self-regulating circuit according to claim 1, wherein a resistor is disposed between the voltage stabilizing diode and the LED driving unit. 如申請專利範圍第1項所述的主動式自我調節電路，其中該電阻的兩端並聯有電容。 The active self-regulating circuit of claim 1, wherein a capacitor is connected in parallel at both ends of the resistor. 如申請專利範圍第1項所述的主動式自我調節電路，其中該電阻為可調節電阻。 The active self-regulating circuit of claim 1, wherein the resistor is an adjustable resistor.
TW102119816A 2013-06-04 2013-06-04 Active self-regulating circuit TWI508615B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
TW102119816A TWI508615B (en) 2013-06-04 2013-06-04 Active self-regulating circuit
CN201310507480.6A CN104219827A (en) 2013-06-04 2013-10-24 Active self-adjusting circuit
GB1409892.5A GB2514929A (en) 2013-06-04 2014-06-04 Active self-regulating circuit

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Application Number Priority Date Filing Date Title
TW102119816A TWI508615B (en) 2013-06-04 2013-06-04 Active self-regulating circuit

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TW201448659A TW201448659A (en) 2014-12-16
TWI508615B true TWI508615B (en) 2015-11-11

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CN108601131B (en) * 2017-11-27 2023-11-10 浙江阳光美加照明有限公司 TRIAC dimmer current maintenance circuit and linear dimming drive circuit using the same
CN110300476B (en) 2018-03-23 2022-04-12 台达电子工业股份有限公司 Dimmer control circuit, method and system

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