JP5528143B2 - Light source lighting device, lighting fixture, and dimming lighting system - Google Patents

Light source lighting device, lighting fixture, and dimming lighting system Download PDF

Info

Publication number
JP5528143B2
JP5528143B2 JP2010023869A JP2010023869A JP5528143B2 JP 5528143 B2 JP5528143 B2 JP 5528143B2 JP 2010023869 A JP2010023869 A JP 2010023869A JP 2010023869 A JP2010023869 A JP 2010023869A JP 5528143 B2 JP5528143 B2 JP 5528143B2
Authority
JP
Japan
Prior art keywords
voltage
light source
output
lighting device
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2010023869A
Other languages
Japanese (ja)
Other versions
JP2011165363A (en
Inventor
信一 芝原
信介 船山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Mitsubishi Electric Lighting Corp
Original Assignee
Mitsubishi Electric Corp
Mitsubishi Electric Lighting Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp, Mitsubishi Electric Lighting Corp filed Critical Mitsubishi Electric Corp
Priority to JP2010023869A priority Critical patent/JP5528143B2/en
Publication of JP2011165363A publication Critical patent/JP2011165363A/en
Application granted granted Critical
Publication of JP5528143B2 publication Critical patent/JP5528143B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

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

Description

この発明は、調光信号に基づいて光源の光出力を制御する光源点灯装置、照明器具及び調光照明システムに関する。   The present invention relates to a light source lighting device, a lighting fixture, and a dimming illumination system that control the light output of a light source based on a dimming signal.

照明用点灯装置において、調光信号に基づく調光制御方式に関する技術がある。近年の照明器具における無駄な明かりの削減は、省エネ、省電力において重要である。このことから、その実現手段である点灯装置の調光制御の需要は増加している。使用者が操作する上で、所定の調光信号以下で全光出力となり、下限調光出力のときには所定の調光信号以上のときに一定出力となり、全光及び下限調光を容易に設定できる技術がある(例えば、特許文献1、特許文献2)。調光制御にはPWM(Pulse Width Modulation)信号が用いられるが、PWM信号のオンデューティ(デューティ比)と、全光出力および下限調光出力の光出力との関係は、「JIS C 8120」に従うことが望ましい。   There is a technique related to a dimming control method based on a dimming signal in an illumination lighting device. Reduction of useless light in recent lighting fixtures is important for energy saving and power saving. For this reason, the demand for dimming control of the lighting device, which is the means for realizing it, is increasing. When operated by the user, the total light output is below the predetermined dimming signal, and when the lower limit dimming output is reached, the constant light is output when the predetermined dimming signal is exceeded. The total light and lower limit dimming can be set easily. There are technologies (for example, Patent Document 1 and Patent Document 2). A PWM (Pulse Width Modulation) signal is used for the dimming control, and the relationship between the on-duty (duty ratio) of the PWM signal and the optical output of the all-light output and the lower-limit dimming output conforms to “JIS C 8120”. It is desirable.

特開平7−6892号公報JP 7-6892 A 特開平7−45392号公報JP 7-45392 A

日本工業規格 「JIS C8120:2008」Japanese Industrial Standard “JIS C8120: 2008”

本発明は、PWM信号を調光制御に用いる光源点灯装置において、簡易な構成で、デューティ比と光出力との関係の傾きを自由に設定することができる光源点灯装置の提供を目的とする。   It is an object of the present invention to provide a light source lighting device that can freely set the inclination of the relationship between the duty ratio and the light output with a simple configuration in a light source lighting device that uses a PWM signal for dimming control.

この発明の光源点灯装置は、
光源の光出力の大きさを指令する調光信号としてPWM信号を入力し、前記PWM信号のデューティ比に応じて前記光源の光出力を制御する光源点灯装置において、
前記PWM信号を入力し、入力した前記PWM信号のデューティ比に応じた直流電圧を出力する直流電圧出力部と、
前記直流電圧出力部から前記直流電圧を入力し、入力した前記直流電圧が所定の第1電圧以下かつ前記第1電圧よりも小さい所定の第2電圧以上のときは前記直流電圧出力部から入力した前記直流電圧を変換電圧として出力し、入力した前記直流電圧が前記第1電圧よりも大きいときは前記第1電圧を前記変換電圧として出力し、入力した前記直流電圧が前記第2電圧よりも小さいときは前記第2電圧を前記変換電圧として出力する直流電圧変換部と、
前記直流電圧変換部から前記変換電圧を入力し、前記変換電圧から所定の電圧を減算する減算処理と、前記変換電圧に所定の電圧を加算する加算処理とのいずれかの演算処理を実行して前記変換電圧から演算後の演算電圧を生成し、生成した前記演算電圧を出力する電圧演算部と、
前記電圧演算部から前記演算電圧を入力し、入力した前記演算電圧に応じて前記光源の光出力を制御する光出力制御部と
を備えたことを特徴とする。
The light source lighting device of the present invention is
In the light source lighting device that inputs a PWM signal as a dimming signal that commands the magnitude of the light output of the light source, and controls the light output of the light source according to the duty ratio of the PWM signal.
A DC voltage output unit that inputs the PWM signal and outputs a DC voltage corresponding to the duty ratio of the input PWM signal;
The DC voltage is input from the DC voltage output unit. When the input DC voltage is equal to or lower than a predetermined first voltage and a predetermined second voltage smaller than the first voltage, the DC voltage is input from the DC voltage output unit. The DC voltage is output as a conversion voltage. When the input DC voltage is larger than the first voltage, the first voltage is output as the conversion voltage, and the input DC voltage is smaller than the second voltage. A DC voltage converter that outputs the second voltage as the converted voltage,
The conversion voltage is input from the DC voltage conversion unit, and any one of subtraction processing for subtracting a predetermined voltage from the conversion voltage and addition processing for adding the predetermined voltage to the conversion voltage is executed. A voltage calculation unit that generates a calculation voltage after calculation from the converted voltage and outputs the generated calculation voltage;
And a light output control unit that inputs the calculation voltage from the voltage calculation unit and controls the light output of the light source according to the input calculation voltage.

本発明により、簡易な構成で、デューティ比と光出力との関係を「JIS C8120」規格に合致させることができる光源点灯装置を提供できる。   According to the present invention, it is possible to provide a light source lighting device capable of matching the relationship between the duty ratio and the light output with the “JIS C8120” standard with a simple configuration.

実施の形態1の調光照明システム100の構成図。1 is a configuration diagram of a dimming / lighting system 100 according to Embodiment 1. FIG. 実施の形態1の光源点灯装置110のブロック図。1 is a block diagram of a light source lighting device 110 according to Embodiment 1. FIG. 実施の形態1の直流電圧変換部50の出力電圧V3を示す図。The figure which shows the output voltage V3 of the DC voltage conversion part 50 of Embodiment 1. FIG. 実施の形態1の光源点灯装置110の回路図。FIG. 3 is a circuit diagram of the light source lighting device 110 according to the first embodiment. 実施の形態1の光源点灯装置110のデューティ比と出力電圧、光出力との関係を示す図。The figure which shows the relationship between the duty ratio of the light source lighting device 110 of Embodiment 1, an output voltage, and an optical output. 実施の形態2の光源点灯装置120の回路図。FIG. 4 is a circuit diagram of a light source lighting device 120 according to a second embodiment.

実施の形態1.
図1〜図5を参照して実施の形態1の光源点灯装置110を説明する。光源点灯装置110は、調光信号であるPWM信号を入力し、PWM信号のデューティ比(1周期のうちのオンデューティの割合)に応じて光源(ランプともいう)の光出力を制御する調光機能を有する。光源点灯装置110の特徴は、デューティ比に対するランプの光出力を、日本工業規格「JIS C8120」に適合させる構成を有する点である。光源点灯装置110の光源LAは、例えば、発光ダイオードや放電灯である。
Embodiment 1 FIG.
The light source lighting device 110 according to the first embodiment will be described with reference to FIGS. The light source lighting device 110 receives a PWM signal, which is a dimming signal, and controls the light output of the light source (also referred to as a lamp) according to the duty ratio of the PWM signal (ratio of on-duty in one cycle). It has a function. A feature of the light source lighting device 110 is that it has a configuration in which the light output of the lamp with respect to the duty ratio is adapted to the Japanese Industrial Standard “JIS C8120”. The light source LA of the light source lighting device 110 is, for example, a light emitting diode or a discharge lamp.

図1は、複数の光源点灯装置110から構成される、実施の形態1の調光照明システム1000の構成図である。調光照明システム1000は、調光信号を送信する調光器200と、複数の照明器具A〜Nを備えている。各照明器具は信号線を介して調光器200から調光信号を受信する。また各照明器具は、以下に説明する光源点灯装置110を備えている。   FIG. 1 is a configuration diagram of a dimming illumination system 1000 according to the first embodiment, which includes a plurality of light source lighting devices 110. The dimming illumination system 1000 includes a dimmer 200 that transmits a dimming signal and a plurality of lighting fixtures A to N. Each lighting fixture receives a dimming signal from the dimmer 200 via a signal line. Moreover, each lighting fixture is provided with the light source lighting device 110 demonstrated below.

(光源点灯装置110の構成の概要)
図2は、実施の形態1の光源点灯装置110を示すブロック図である。図2を参照して光源点灯装置110の構成概要を説明する。
(Outline of configuration of light source lighting device 110)
FIG. 2 is a block diagram showing the light source lighting device 110 of the first embodiment. An outline of the configuration of the light source lighting device 110 will be described with reference to FIG.

光源点灯装置110は、点灯回路10、調光信号入力部20、スイッチング回路30、時間積分回路40(直流電圧出力部)、直流電圧変換部50、減算回路60(電圧演算部)、調光制御回路70を備えている。また、定電流回路12と、点灯制御回路13と、電流検出回路14と、及び調光制御回路70とは、光源の光出力を制御する光出力制御部101を構成する。
(1)点灯回路10は、商用電源AC(交流電流)が入力され、光源LAに電力を供給する。
(2)調光信号入力部20は、調光器200から出力されるPWM信号からなる調光信号が入力される。
(3)スイッチング回路30は、調光信号入力部20に接続される。
(4)時間積分回路40は、スイッチング回路30に接続される。
(5)直流電圧変換部50は、時間積分回路40に接続される。
(6)減算回路60は、直流電圧変換部50に接続される。
(7)調光制御回路70は、減算回路60に接続される。
なお、これらの各回路の機能は動作の説明で後述する。
The light source lighting device 110 includes a lighting circuit 10, a dimming signal input unit 20, a switching circuit 30, a time integration circuit 40 (DC voltage output unit), a DC voltage conversion unit 50, a subtraction circuit 60 (voltage calculation unit), and dimming control. A circuit 70 is provided. The constant current circuit 12, the lighting control circuit 13, the current detection circuit 14, and the dimming control circuit 70 constitute a light output control unit 101 that controls the light output of the light source.
(1) The lighting circuit 10 receives a commercial power supply AC (alternating current) and supplies power to the light source LA.
(2) The dimming signal input unit 20 receives a dimming signal including a PWM signal output from the dimmer 200.
(3) The switching circuit 30 is connected to the dimming signal input unit 20.
(4) The time integration circuit 40 is connected to the switching circuit 30.
(5) The DC voltage conversion unit 50 is connected to the time integration circuit 40.
(6) The subtraction circuit 60 is connected to the DC voltage conversion unit 50.
(7) The dimming control circuit 70 is connected to the subtraction circuit 60.
The function of each circuit will be described later in the description of the operation.

点灯回路10は、交流−直流変換回路11、制御する定電流回路12、点灯制御回路13、電流検出回路14を備えている。
(1)交流−直流変換回路11は、商用電源ACから供給される交流電圧を直流電圧に変換する。
(2)定電流回路12は、交流−直流変換回路11が変換した直流電圧を入力し、光源LAに定電流が流れるように制御する。
(3)点灯制御回路13は、定電流回路12が光源LAに供給する定電流の電流値を設定し、光源LAの点灯状態を制御する。
(4)電流検出回路14は、定電流回路12が光源LAに供給している電流値を検出する。
The lighting circuit 10 includes an AC-DC conversion circuit 11, a constant current circuit 12 to be controlled, a lighting control circuit 13, and a current detection circuit 14.
(1) The AC-DC conversion circuit 11 converts an AC voltage supplied from the commercial power supply AC into a DC voltage.
(2) The constant current circuit 12 receives the DC voltage converted by the AC-DC conversion circuit 11 and controls the constant current to flow through the light source LA.
(3) The lighting control circuit 13 sets the current value of the constant current that the constant current circuit 12 supplies to the light source LA, and controls the lighting state of the light source LA.
(4) The current detection circuit 14 detects the current value that the constant current circuit 12 supplies to the light source LA.

(点灯制御回路13)
点灯制御回路13は調光制御回路70に接続され、調光制御回路70の指令に従って、光源LAへ供給する電流の電流値を示す制御信号を定電流回路12に出力する。点灯制御回路13は、調光器200が出力するPWM信号のデューティ比が大きくなるほど、光源LAが暗くなるように調光制御を行う。
(Lighting control circuit 13)
The lighting control circuit 13 is connected to the dimming control circuit 70 and outputs a control signal indicating the current value of the current supplied to the light source LA to the constant current circuit 12 in accordance with a command from the dimming control circuit 70. The lighting control circuit 13 performs dimming control so that the light source LA becomes darker as the duty ratio of the PWM signal output from the dimmer 200 increases.

(電流検出回路14)
電流検出回路14は、定電流回路12が光源LAに供給する電流値を検出し、検出した電流値を示す検出信号VCSを調光制御回路70に出力する。
(Current detection circuit 14)
The current detection circuit 14 detects a current value that the constant current circuit 12 supplies to the light source LA, and outputs a detection signal VCS indicating the detected current value to the dimming control circuit 70.

(調光信号入力部20の構成)
調光信号入力部20は、一端側が調光器200に接続される抵抗R1と、抵抗R1の他端と調光器200に接続されるコンデンサC1と、抵抗R1とコンデンサC1が接続される接続部に一端側が接続される抵抗R2と、抵抗R2に接続されるダイオードブリッジDBとを備える。ダイオードブリッジDBは、調光信号入力部20に接続される調光器200の極性を誤った場合であっても、ダイオードブリッジDBの後段に接続されるスイッチング回路30に入力する信号の極性を同じにするためのものである。
(Configuration of dimming signal input unit 20)
The dimming signal input unit 20 has one end connected to the dimmer 200, the resistor R1, the other end of the resistor R1, the capacitor C1 connected to the dimmer 200, and the connection to which the resistor R1 and the capacitor C1 are connected. A resistor R2 having one end connected to the portion, and a diode bridge DB connected to the resistor R2. Even when the polarity of the dimmer 200 connected to the dimming signal input unit 20 is wrong, the diode bridge DB has the same polarity as the signal input to the switching circuit 30 connected to the subsequent stage of the diode bridge DB. It is for making.

(スイッチング回路30:出力V1)
スイッチング回路30は、調光信号入力部20のダイオードブリッジDBに発光ダイオード部が接続され、調光信号(PWM信号)に応動してフォトトランジスタがスイッチング(オン・オフ)するフォトカプラPCを備える。スイッチング回路30は、フォトカプラPCがスイッチング動作することによって、制御電源VDDから入力される電圧を、抵抗R3を介して矩形波状の信号波形に生成し、この生成した信号波形を矩形波電圧V1(図1のA点)として出力する。
(Switching circuit 30: output V1)
The switching circuit 30 includes a photocoupler PC in which a light emitting diode unit is connected to the diode bridge DB of the dimming signal input unit 20 and the phototransistor is switched (ON / OFF) in response to the dimming signal (PWM signal). The switching circuit 30 generates a voltage input from the control power supply VDD into a rectangular waveform via the resistor R3 by the switching operation of the photocoupler PC, and the generated signal waveform is converted into a rectangular waveform V1 ( It is output as point A in FIG.

(時間積分回路40:出力V2)
時間積分回路40は、スイッチング回路30が出力する矩形波電圧V1(PWM信号)を入力し、矩形波電圧V1を積分して、矩形波電圧V1のデューティ比に応じたほぼ平坦な直流電圧V2を生成し、(図1のB点)を直流電圧変換部50に出力する。矩形波電圧V1は調光器200が出力する調光信号に対応しているので、時間積分回路40によって生成される直流電圧V2は、調光器200が出力する調光信号のデューティ比に応じたものである。
(Time integration circuit 40: output V2)
The time integration circuit 40 receives the rectangular wave voltage V1 (PWM signal) output from the switching circuit 30, integrates the rectangular wave voltage V1, and generates a substantially flat DC voltage V2 corresponding to the duty ratio of the rectangular wave voltage V1. And output (point B in FIG. 1) to the DC voltage converter 50. Since the rectangular wave voltage V1 corresponds to the dimming signal output from the dimmer 200, the DC voltage V2 generated by the time integration circuit 40 depends on the duty ratio of the dimming signal output from the dimmer 200. It is a thing.

(直流電圧変換部50:出力V3)
は、直流電圧変換部50が時間積分回路40から入力する直流電圧V2と、直流電圧変換部50の出力する直流電圧V3(変換電圧)との関係を示す図である。直流電圧変換部50は、図に示すように、
(範囲1)時間積分回路40が生成した直流電圧V2の電圧値が、予め定める第2電圧値V(2)より小さいときは、第2電圧V(2)を直流電圧V3として出力する。
(範囲2)時間積分回路40が生成した直流電圧V2の電圧値が、第1電圧値V(1)以下、かつ、第2電圧V(2)以上のときは、直流電圧V2を直流電圧V3として出力する。
(範囲3)時間積分回路40が生成した直流電圧V2の電圧値が、予め定める第1電圧V(1)よりも大きいときは、第1電圧V(1)を直流電圧V3(図1のC点)として出力する。
(DC voltage converter 50: output V3)
FIG. 3 is a diagram showing the relationship between the DC voltage V2 input from the time integration circuit 40 by the DC voltage conversion unit 50 and the DC voltage V3 (conversion voltage) output from the DC voltage conversion unit 50. As shown in FIG. 3 , the DC voltage conversion unit 50 is
(Range 1) When the voltage value of the DC voltage V2 generated by the time integration circuit 40 is smaller than the predetermined second voltage value V (2), the second voltage V (2) is output as the DC voltage V3.
(Range 2) When the voltage value of the DC voltage V2 generated by the time integration circuit 40 is not more than the first voltage value V (1) and not less than the second voltage V (2), the DC voltage V2 is changed to the DC voltage V3. Output as.
(Range 3) When the voltage value of the DC voltage V2 generated by the time integration circuit 40 is larger than the predetermined first voltage V (1), the first voltage V (1) is changed to the DC voltage V3 (C in FIG. 1). Point).

(減算回路60:出力V4)
減算回路60は、直流電圧変換部50が出力する直流電圧V3を入力し、この直流電圧V3の電圧値から所定の電圧値Vを減算(差分)して、直流電圧V4(演算電圧)として出力する(図1のD点)。なお、実施の形態1の光源点灯装置110では、このように直流電圧V3から電圧値Vを減じているが、直流電圧変換部50から出力される直流電圧V3の大きさによっては、直流電圧V3に電圧値V’を加えてもよい。すなわち、減算回路60(電圧演算部)は、直流電圧V3の大きさによっては、減算処理に限らず、加算処理を行う構成でもよいことは当然である。この場合、減算において引かれる電圧Vと、加算において加えられる電圧V’とは、互いに無関係である。
(Subtraction circuit 60: output V4)
The subtraction circuit 60 receives the DC voltage V3 output from the DC voltage conversion unit 50, subtracts (differs) a predetermined voltage value V from the voltage value of the DC voltage V3, and outputs the result as a DC voltage V4 (calculated voltage). (D point in FIG. 1). In the light source lighting device 110 of the first embodiment, the voltage value V is subtracted from the DC voltage V3 as described above. However, depending on the magnitude of the DC voltage V3 output from the DC voltage conversion unit 50, the DC voltage V3. A voltage value V ′ may be added to. In other words, the subtraction circuit 60 (voltage calculation unit) is naturally not limited to the subtraction process depending on the magnitude of the DC voltage V3, and may be configured to perform the addition process. In this case, the voltage V drawn in the subtraction and the voltage V ′ applied in the addition are independent of each other.

(調光制御回路70)
調光制御回路70は、減算回路60が出力する直流電圧V4と、電流検出回路14が出力する検出信号とを入力し、直流電圧V4と検出信号とを比較して、調光器200が指示する調光度となる調光制御指令値(調光制御信号)を点灯制御回路13に出力する。
(Dimming control circuit 70)
The dimming control circuit 70 receives the DC voltage V4 output from the subtraction circuit 60 and the detection signal output from the current detection circuit 14, compares the DC voltage V4 and the detection signal, and the dimmer 200 instructs A dimming control command value (a dimming control signal) that provides the dimming degree to be output is output to the lighting control circuit 13.

図4は、図2の光源点灯装置110のブロック図を詳細に示す回路図である。スイッチング回路30は、図2に示すフォトカプラPCのほかに、フォトカプラPCが出力する信号を増幅するための増幅回路31を備えている。なお図4では、図6で後述する実施の形態2の調光制御回路70bと区別のため、「調光制御回路70a」とした。   4 is a circuit diagram showing in detail a block diagram of the light source lighting device 110 of FIG. The switching circuit 30 includes an amplifier circuit 31 for amplifying a signal output from the photocoupler PC in addition to the photocoupler PC shown in FIG. In FIG. 4, the “dimming control circuit 70 a” is used for distinction from the dimming control circuit 70 b of the second embodiment described later with reference to FIG. 6.

(増幅回路31)
増幅回路31は、反転スイッチング部32、出力スイッチング部33を備えている。
反転スイッチング部32は、フォトカプラPCの出力によりスイッチングして、フォトカプラPCの出力波形とは反転した反転信号を出力する。出力スイッチング部33は、反転スイッチング部32から、この反転信号を入力し、さらに反転してフォトカプラPCの出力波形と同位相とするとともに、フォトカプラPCの出力よりも信号レベルの高いPWM制御信号を出力する。
(Amplifier circuit 31)
The amplifier circuit 31 includes an inverting switching unit 32 and an output switching unit 33.
The inverting switching unit 32 performs switching based on the output of the photocoupler PC, and outputs an inverted signal that is inverted from the output waveform of the photocoupler PC. The output switching unit 33 receives the inverted signal from the inverting switching unit 32, further inverts it to have the same phase as the output waveform of the photocoupler PC, and a PWM control signal having a higher signal level than the output of the photocoupler PC. Is output.

(反転スイッチング部32)
反転スイッチング部32は、一端側がフォトカプラPCに接続される抵抗R4と、この抵抗R4の他端側に接続されるコンデンサC2及びMOS−FET(Q1)と、MOS−FET(Q1)のドレイン端子と制御電源VDDとの間に接続される抵抗R5とを備える。
(Inverting switching unit 32)
The inverting switching unit 32 has a resistor R4 whose one end is connected to the photocoupler PC, a capacitor C2 and a MOS-FET (Q1) connected to the other end of the resistor R4, and a drain terminal of the MOS-FET (Q1). And a resistance R5 connected between the power supply VDD and the control power supply VDD.

(出力スイッチング部33)
出力スイッチング部33は、反転スイッチング部32のMOS−FET(Q1)のドレイン端子に接続されるMOS−FET(Q2)、(Q3)と、MOS−FET(Q2)とMOS−FET(Q3)との間に接続される抵抗R6、R7とを備える。なお、この実施の形態1におけるMOS−FET(Q2)は、PチャネルFETであり、MOS−FET(Q3)は、NチャネルFETである。このように、MOS−FET(Q2)に、MOS−FET(Q3)のコンプリメンタリの関係となっているものを使用して、MOS−FET(Q2)がオンのとき、MOS−FET(Q3)がオフ、MOS−FET(Q2)がオフのとき、MOS−FET(Q3)がオンとなるようにしている。
(Output switching unit 33)
The output switching unit 33 includes MOS-FETs (Q2), (Q3), a MOS-FET (Q2), and a MOS-FET (Q3) connected to the drain terminal of the MOS-FET (Q1) of the inverting switching unit 32. And resistors R6 and R7 connected between the two. Note that the MOS-FET (Q2) in the first embodiment is a P-channel FET, and the MOS-FET (Q3) is an N-channel FET. As described above, when the MOS-FET (Q2) is in a complementary relationship with the MOS-FET (Q2) and the MOS-FET (Q2) is on, the MOS-FET (Q3) is When the MOS-FET (Q2) is off, the MOS-FET (Q3) is turned on.

増幅回路31は、フォトカプラPCが出力する出力信号のレベルが低い場合、後段の時間積分回路40などが誤動作するのを防止するために設けている。なお、フォトカプラPCが出力する出力信号のレベルが高く、時間積分回路40などが誤動作する恐れがない場合は、増幅回路31を省略してもよい。   The amplifier circuit 31 is provided in order to prevent the subsequent time integration circuit 40 and the like from malfunctioning when the level of the output signal output from the photocoupler PC is low. Note that the amplifier circuit 31 may be omitted if the level of the output signal output from the photocoupler PC is high and the time integration circuit 40 or the like is not likely to malfunction.

(時間積分回路40)
時間積分回路40は、抵抗R8と、抵抗R8に接続されるコンデンサC3からなる積分回路である。時間積分回路40は、入力した調光制御信号に応じて、制御電源VDDをスイッチングして得られる矩形波電圧V1を生成し、矩形波電圧V1を時間積分して第1直流電圧V2(B点)を生成する。直流電圧V2は、式(1)に示すように、制御電源VDDに、矩形波電圧V1の「1−オンデューティ比」(少数表記)を掛け合わせて算出する。
(Time integration circuit 40)
The time integration circuit 40 is an integration circuit including a resistor R8 and a capacitor C3 connected to the resistor R8. The time integration circuit 40 generates a rectangular wave voltage V1 obtained by switching the control power supply VDD in accordance with the input dimming control signal, and integrates the rectangular wave voltage V1 with time to generate a first DC voltage V2 (point B). ) Is generated. The DC voltage V2 is calculated by multiplying the control power supply VDD by the “1-on duty ratio” (numbered notation) of the rectangular wave voltage V1, as shown in the equation (1).

V2=VDD×(1−「on−duty」)・・・(式1)   V2 = VDD × (1- “on-duty”) (Equation 1)

(直流電圧変換部50)
直流電圧変換部50は、
時間積分回路40にダイオードD1を介して接続されるオペアンプOP1と、オペアンプOP1の出力端子に接続されるコンデンサC4と、正極入力端子が時間積分回路40に接続され、負極入力端子が自身の出力端子に接続されるオペアンプOP2と、オペアンプOP2の出力端子に接続されるコンデンサC5及びダイオードD2と、制御電源VDDを分圧する直列接続される抵抗R9、R10、R11と、この抵抗R9と抵抗R10に接続されるダイオードD3と、抵抗R10と抵抗R11に正極入力端子が接続され、負極入力端子が自身の出力端子に接続されるオペアンプOP3と、このオペアンプOP3の出力端子に接続されるコンデンサC6及びダイオードD4と、ダイオードD2のカソード端子及びダイオードD4のカソード端子に接続されるコンデンサC7と、を備える。
(DC voltage converter 50)
The DC voltage conversion unit 50
The operational amplifier OP1 connected to the time integration circuit 40 via the diode D1, the capacitor C4 connected to the output terminal of the operational amplifier OP1, the positive input terminal is connected to the time integration circuit 40, and the negative input terminal is its own output terminal. Connected to the output terminal of the operational amplifier OP2, the capacitor C5 and the diode D2 connected to the output terminal of the operational amplifier OP2, resistors R9, R10, R11 connected in series for dividing the control power supply VDD, and the resistors R9 and R10. A diode D3, a resistor R10 and a resistor R11 having a positive input terminal connected to the output terminal of the operational amplifier OP3 whose negative input terminal is connected to its own output terminal, a capacitor C6 and a diode D4 connected to the output terminal of the operational amplifier OP3 And a cathode terminal of the diode D2 and a cathode terminal of the diode D4 Comprises, a capacitor C7 connected to.

直流電圧変換部50は、図3で説明したように、直流電圧V2を入力し、直流電圧V2の電圧値が範囲3のときは第1電圧値V(1)を直流電圧V3として出力し、直流電圧V2の電圧値が範囲1のときは第2電圧値V(2)を第2直流電圧V3として出力し、直流電圧V2の電圧値が範囲2のときは直流電圧V2の電圧値を直流電圧V3として出力する。   As described in FIG. 3, the DC voltage conversion unit 50 receives the DC voltage V2, and outputs the first voltage value V (1) as the DC voltage V3 when the voltage value of the DC voltage V2 is in the range 3. When the voltage value of the DC voltage V2 is in the range 1, the second voltage value V (2) is output as the second DC voltage V3. When the voltage value of the DC voltage V2 is in the range 2, the voltage value of the DC voltage V2 is output as the DC voltage. Output as voltage V3.

(減算回路60)
減算回路60は、直流電圧変換部50が出力する直流電圧V3を分圧する抵抗R12、R13と、正極入力端子が抵抗R13に接続され、負極入力端子が自身の出力端子に抵抗R15を介して接続されるオペアンプOP4と、オペアンプOP4の負極入力端子に抵抗R14を介して接続される定電圧源Vと、を備える。
(Subtraction circuit 60)
The subtraction circuit 60 has resistors R12 and R13 that divide the DC voltage V3 output from the DC voltage converter 50, a positive input terminal connected to the resistor R13, and a negative input terminal connected to its output terminal via the resistor R15. And a constant voltage source V connected to a negative input terminal of the operational amplifier OP4 via a resistor R14.

(調光制御回路70a)
調光制御回路70aは、正極入力端子が減算回路60に接続され、負極入力端子が抵抗R16を介して電流検出回路14に接続される比較器OP5を備える。
(Dimming control circuit 70a)
The dimming control circuit 70a includes a comparator OP5 having a positive input terminal connected to the subtraction circuit 60 and a negative input terminal connected to the current detection circuit 14 via a resistor R16.

(動作)
次に、直流電圧変換部50、減算回路60及び調光制御回路70aの動作を説明する。
(Operation)
Next, operations of the DC voltage conversion unit 50, the subtraction circuit 60, and the dimming control circuit 70a will be described.

(直流電圧変換部50)
(1)オペアンプOP1は、第1直流電圧V2を、制御電源VDDを抵抗分圧(抵抗R9〜R11による分圧)して得られる基準値(予め定める第1電圧値V(1))に従って一定にすることにより、直流電圧変換部50の出力である直流電圧V3の上限限度値を決めている。
(2)オペアンプOP2は、直流電圧V2を、後段の抵抗R12、R13に影響されないように低インピーダンスで出力するものである。
(3)オペアンプOP3は、直流電圧V2を、制御電源VDDを抵抗分圧(抵抗R9〜R11による分圧)して得られる基準値(予め定める第2電圧値V(2))に従い、直流電圧変換部50の出力である直流電圧V3の下限限度値を決める。
(4)オペアンプOP2とオペアンプOP3の出力は、ダイオードD2、D4のOR回路によって、下限限度値、又は、第1直流電圧V2の電圧値を出力するものである。
(DC voltage converter 50)
(1) The operational amplifier OP1 is constant according to a reference value (predetermined first voltage value V (1)) obtained by dividing the first DC voltage V2 by resistance voltage division by the control power supply VDD (voltage division by the resistors R9 to R11). Thus, the upper limit value of the DC voltage V3 that is the output of the DC voltage conversion unit 50 is determined.
(2) The operational amplifier OP2 outputs the DC voltage V2 with a low impedance so as not to be affected by the subsequent resistors R12 and R13.
(3) The operational amplifier OP3 uses the DC voltage V2 according to a reference value (predetermined second voltage value V (2)) obtained by dividing the control power supply VDD by resistance (voltage division by the resistors R9 to R11). The lower limit value of the DC voltage V3 that is the output of the converter 50 is determined.
(4) The outputs of the operational amplifier OP2 and the operational amplifier OP3 output the lower limit value or the voltage value of the first DC voltage V2 by the OR circuit of the diodes D2 and D4.

(減算回路60)
減算回路60は、直流電圧変換部50が出力する直流電圧V3を入力して、オペアンプOP4により、直流電圧V3の電圧値から、定電圧源Vが供給する定電圧Vの電圧値を減算する。減算回路60は、オペアンプOP4により減算した電圧値を、直流電圧V4として出力する(D点)。ここで、直流電圧変換部50から入力する直流電圧V3の電圧値と、定電圧Vの電圧値と、直流電圧V4との関係を、式(2)に示す。
V4=V3−V・・・(2)
(Subtraction circuit 60)
The subtraction circuit 60 receives the DC voltage V3 output from the DC voltage converter 50, and the operational amplifier OP4 subtracts the voltage value of the constant voltage V supplied from the constant voltage source V from the voltage value of the DC voltage V3. The subtraction circuit 60 outputs the voltage value subtracted by the operational amplifier OP4 as the DC voltage V4 (D point). Here, the relationship between the voltage value of the DC voltage V3 input from the DC voltage conversion unit 50, the voltage value of the constant voltage V, and the DC voltage V4 is shown in Expression (2).
V4 = V3-V (2)

(調光制御回路70a)
減算回路60の出力する直流電圧V4は、調光制御回路70aの調光制御基準値として、比較器OP5に入力される。比較器OP5は、電流検出回路14から得られる検出信号VCSと、減算回路60の出力である直流電圧V4の電圧値とを比較し、光源LAの点灯制御に反映させる。つまり、直流電圧V4の電圧値よりも検出信号VCSが大きい場合は、比較器OP5は、光源LAを暗くする制御信号を点灯制御回路21に出力する。直流電圧V4の電圧値よりも検出信号VCSが小さい場合は、比較器OP5は、光源LAを明るくする制御信号を点灯制御回路21に出力する。このようにして、比較器OP5は、検出信号VCSと第3直流電圧V4とが等しくなるようにする。
(Dimming control circuit 70a)
The DC voltage V4 output from the subtraction circuit 60 is input to the comparator OP5 as a dimming control reference value for the dimming control circuit 70a. The comparator OP5 compares the detection signal VCS obtained from the current detection circuit 14 with the voltage value of the DC voltage V4 that is the output of the subtraction circuit 60, and reflects it in the lighting control of the light source LA. That is, when the detection signal VCS is larger than the voltage value of the DC voltage V4, the comparator OP5 outputs a control signal that darkens the light source LA to the lighting control circuit 21. When the detection signal VCS is smaller than the voltage value of the DC voltage V4, the comparator OP5 outputs a control signal for brightening the light source LA to the lighting control circuit 21. In this way, the comparator OP5 makes the detection signal VCS and the third DC voltage V4 equal.

なお、比較器OP5が比較する検出信号VCSは、電流検出回路14が検出する光源LAに供給する電流の電流値だけでなく、光源LAに供給する電力の電力値や、光源LAに印加する電圧の電圧値に基づいた検出信号であってもよい。   The detection signal VCS compared by the comparator OP5 is not only the current value of the current supplied to the light source LA detected by the current detection circuit 14, but also the power value of the power supplied to the light source LA and the voltage applied to the light source LA. The detection signal may be based on the voltage value.

図5は、図2、図4に示す光源点灯装置110の各部(B点(V2)等)の出力電圧とPWM信号(調光信号)との関係、及び「JIS C8120:2008」の一例(下限調光率1%の例)に規定される光出力とPWM信号(調光信号)との関係を示した図である。   5 shows the relationship between the output voltage of each part (point B (V2), etc.) and the PWM signal (dimming signal) of the light source lighting device 110 shown in FIGS. 2 and 4, and an example of “JIS C8120: 2008” ( It is the figure which showed the relationship between the optical output prescribed | regulated to the example of a lower limit light control rate of 1%, and a PWM signal (light control signal).

図5では「V5」も掲載しているが、「V5」は実施の形態2で後述する。「V2」はB点の出力電圧であり、「V3」はC点の出力電圧であり、「V4」はD点の出力電圧である。図5に示すように、「V2」は、一番上に位置し、オンデューティ「0〜5%」、「90〜100%」の範囲でも水平ではない。「V3」は、「V2」と重なっているが、両端、つまり、オンデューティ「0〜5%」、「90〜100%」の範囲では、水平になっている。「V4」は、一点鎖線で示しているが、「V3」よりも下側に位置する。これは、式(2)のように、直流電圧V3から定電圧Vを減じたためである。一番下側の線が「JIS C8120:2008」の一例(下限調光率1%の例)を示すが、直流電圧V4と「JIS C8120:2008」は、オンデューティに対して同じ変化を行うことがわかる。   Although “V5” is also shown in FIG. 5, “V5” will be described later in the second embodiment. “V2” is the output voltage at point B, “V3” is the output voltage at point C, and “V4” is the output voltage at point D. As shown in FIG. 5, “V2” is located at the top and is not horizontal even in the range of on-duty “0 to 5%” and “90 to 100%”. “V3” overlaps with “V2”, but is horizontal at both ends, that is, in the range of on-duty “0 to 5%” and “90 to 100%”. “V4” is indicated by an alternate long and short dash line, but is located below “V3”. This is because the constant voltage V is subtracted from the direct-current voltage V3 as shown in Expression (2). The lowermost line shows an example of “JIS C8120: 2008” (example of lower limit dimming rate of 1%), but DC voltage V4 and “JIS C8120: 2008” perform the same change with respect to on-duty. I understand that.

光源LAに白色発光ダイオード(以下、単にLEDという。)を用いた場合、PWM信号のオンデューティ期間が短くなると、定電流回路12がLEDに供給する電流を増加させ、LEDが発する光は明るくなる。これは、一般的に、LEDに流れる電流と、LEDが発する光出力との関係は、電流が増加するにつれ光出力が増加するようになっており、その増加比率は略直線状となっているためである。但し、LEDが個々にもつ飽和領域まで電流が増加するとき、これ以上LEDに流す電流を増加しても、LEDが発する光出力は略直線状に増加しなくなる。   When a white light emitting diode (hereinafter simply referred to as LED) is used as the light source LA, when the on-duty period of the PWM signal is shortened, the current that the constant current circuit 12 supplies to the LED is increased, and the light emitted from the LED becomes brighter. . In general, the relationship between the current flowing through the LED and the light output emitted by the LED is such that the light output increases as the current increases, and the increase ratio is substantially linear. Because. However, when the current increases up to the saturation region of each LED, the light output emitted by the LED does not increase substantially linearly even if the current passed through the LED is further increased.

したがって、光源点灯装置110では、直流電圧V4と光源LAに流れる電流とを、対応させて制御している。したがって、一般的に光源LAの電流−光出力が略線形の特性を示すLEDにおいては、PWM信号のオンデューティの変化に対するLEDが発する光特性の傾きを自由に変更することができる。   Therefore, the light source lighting device 110 controls the DC voltage V4 and the current flowing through the light source LA in association with each other. Therefore, in an LED in which the current-light output of the light source LA generally shows a substantially linear characteristic, the slope of the optical characteristic emitted by the LED with respect to the change in the on-duty of the PWM signal can be freely changed.

以上のように、実施の形態1の光源点灯装置110は、直流電圧変換部50、減算回路60及び調光制御回路70aを備えたので、簡易な構成で、オンデューティと光出力との関係を蛍光ランプ用の点灯装置の仕様に合致させることができる。   As described above, the light source lighting device 110 according to the first embodiment includes the DC voltage conversion unit 50, the subtraction circuit 60, and the dimming control circuit 70a. Therefore, the relationship between the on-duty and the light output can be obtained with a simple configuration. It is possible to match the specifications of the lighting device for the fluorescent lamp.

実施の形態2.
次に図6を参照して、実施の形態2を説明する。図6は、実施の形態2の光源点灯装置120を示す回路図である。光源点灯装置120は実施の形態1の光源点灯装置110と、調光制御回路70の構成が異なる。このため、光源点灯装置120では「調光制御回路70b」という。調光制御回路70bは、実施の形態1の調光制御回路70aに対して、減算回路60の出力である直流電圧V4の大きさを調整可能な演算電圧調整部71bを備えている。
Embodiment 2. FIG.
Next, Embodiment 2 will be described with reference to FIG. FIG. 6 is a circuit diagram showing the light source lighting device 120 of the second embodiment. The light source lighting device 120 is different from the light source lighting device 110 of the first embodiment in the configuration of the dimming control circuit 70. For this reason, the light source lighting device 120 is referred to as “light control circuit 70b”. The dimming control circuit 70b includes an arithmetic voltage adjusting unit 71b that can adjust the magnitude of the DC voltage V4 that is the output of the subtracting circuit 60 with respect to the dimming control circuit 70a of the first embodiment.

図6に示すように、演算電圧調整部71bは、直流電圧V4を分圧する抵抗R17、可変抵抗R18と、制御電源VDDと抵抗R17(可変抵抗R18)との間に接続され、比較器OP5の正極入力端子に電流を供給する抵抗R19とを備える。抵抗R17、R19、可変抵抗R18が接続する接続点(E点)に発生する「直流電圧V5」は、比較器OP5の調光制御基準値となる。比較器OP5は、直流電圧V5と検出信号VCSとを比較し、点灯制御回路13に調光制御信号を出力する。   As shown in FIG. 6, the calculation voltage adjustment unit 71b is connected between the resistor R17 and the variable resistor R18 that divide the DC voltage V4, and between the control power supply VDD and the resistor R17 (variable resistor R18). And a resistor R19 for supplying a current to the positive input terminal. “DC voltage V5” generated at a connection point (point E) to which the resistors R17 and R19 and the variable resistor R18 are connected becomes a dimming control reference value of the comparator OP5. The comparator OP5 compares the DC voltage V5 with the detection signal VCS and outputs a dimming control signal to the lighting control circuit 13.

図5では、前記の直流電圧V5の特性を点線で示しているが、直流電圧V5の特性は、図5をみると明らかなように、「JIS C8120:2008」の特性と一致している。   In FIG. 5, the characteristic of the DC voltage V5 is indicated by a dotted line, but the characteristic of the DC voltage V5 coincides with the characteristic of “JIS C8120: 2008”, as is apparent from FIG.

図5に示すように、実施の形態2の直流電圧V5は、実施の形態1の直流電圧V4よりも「JIS C 8120:2008」の特性に近くすることができる。これは、可変抵抗R18によって、直流電圧V4(直流電圧V3から定電圧源Vの電圧値分を減算した電圧、V4=V3−V)を調整可能としているためである。比較器OP5に入力される電圧を直流電圧V5とすると、直流電圧V5と直流電圧V3の関係は次の式(3)で示すことができる(「*」は乗算を示す)。   As shown in FIG. 5, the DC voltage V5 of the second embodiment can be closer to the characteristics of “JIS C 8120: 2008” than the DC voltage V4 of the first embodiment. This is because the variable resistor R18 can adjust the DC voltage V4 (the voltage obtained by subtracting the voltage value of the constant voltage source V from the DC voltage V3, V4 = V3-V). When the voltage input to the comparator OP5 is a DC voltage V5, the relationship between the DC voltage V5 and the DC voltage V3 can be expressed by the following equation (3) (“*” indicates multiplication).

V5=(R17*R19)/(R17*R19+R18*R19+R17*R18)*VDD+(R18*R19)/(R17*R19+R18*R19+R17*R18)*(V3−V)・・・(3)   V5 = (R17 * R19) / (R17 * R19 + R18 * R19 + R17 * R18) * VDD + (R18 * R19) / (R17 * R19 + R18 * R19 + R17 * R18) * (V3-V) (3)

以上の実施の形態2の光源点灯装置120によれば、抵抗R17、R19及び可変抵抗R18、定電圧源Vと、制御電源VDDから供給される電流によって、デューティ比と光出力との関係の傾きを自由に変更することができる。   According to the light source lighting device 120 of the second embodiment described above, the slope of the relationship between the duty ratio and the light output is determined by the resistors R17 and R19, the variable resistor R18, the constant voltage source V, and the current supplied from the control power supply VDD. Can be changed freely.

10 点灯回路、11 交流−直流変換回路、12 定電流回路、13 点灯制御回路、14 電流検出回路、18 可変抵抗、20 調光信号入力部、30 スイッチング回路、31 増幅回路、32 反転スイッチング部、33 出力スイッチング部、40 時間積分回路、50 直流電圧変換部、60 減算回路、70,70a,70b 調光制御回路、71b 演算電圧調整部、110,120 光源点灯装置、200 調光器、1000 調光照明システム。   DESCRIPTION OF SYMBOLS 10 Lighting circuit, 11 AC-DC converter circuit, 12 Constant current circuit, 13 Lighting control circuit, 14 Current detection circuit, 18 Variable resistance, 20 Dimming signal input part, 30 Switching circuit, 31 Amplifier circuit, 32 Inverting switching part, 33 output switching unit, 40 time integration circuit, 50 DC voltage conversion unit, 60 subtraction circuit, 70, 70a, 70b dimming control circuit, 71b calculation voltage adjusting unit, 110, 120 light source lighting device, 200 dimmer, 1000 dimming Light illumination system.

Claims (6)

光源の光出力の大きさを指令する調光信号としてPWM(Pulse Width Modulation)信号を入力し、前記PWM信号のデューティ比に応じて前記光源の光出力を制御する光源点灯装置において、
前記PWM信号を入力し、入力した前記PWM信号のデューティ比に応じた直流電圧を出力する直流電圧出力部と、
前記直流電圧出力部から前記直流電圧を入力し、入力した前記直流電圧が所定の第1電圧以下かつ前記第1電圧よりも小さい所定の第2電圧以上のときは前記直流電圧出力部から入力した前記直流電圧を変換電圧として出力し、入力した前記直流電圧が前記第1電圧よりも大きいときは前記第1電圧を前記変換電圧として出力し、入力した前記直流電圧が前記第2電圧よりも小さいときは前記第2電圧を前記変換電圧として出力する直流電圧変換部と、
前記直流電圧変換部から前記変換電圧を入力し、前記変換電圧から定電圧の電圧値を減算する減算処理の演算処理を実行して前記変換電圧から演算後の演算電圧を生成し、生成した前記演算電圧を出力する電圧演算部と、
前記電圧演算部から前記演算電圧を入力し、入力した前記演算電圧に応じて前記光源の光出力を制御する光出力制御部と
を備えたことを特徴とする光源点灯装置。
In a light source lighting device that inputs a PWM (Pulse Width Modulation) signal as a dimming signal that commands the magnitude of the light output of the light source, and controls the light output of the light source according to the duty ratio of the PWM signal.
A DC voltage output unit that inputs the PWM signal and outputs a DC voltage corresponding to the duty ratio of the input PWM signal;
The DC voltage is input from the DC voltage output unit. When the input DC voltage is equal to or lower than a predetermined first voltage and a predetermined second voltage smaller than the first voltage, the DC voltage is input from the DC voltage output unit. The DC voltage is output as a conversion voltage. When the input DC voltage is larger than the first voltage, the first voltage is output as the conversion voltage, and the input DC voltage is smaller than the second voltage. A DC voltage converter that outputs the second voltage as the converted voltage,
Enter the converted voltage from said DC voltage converting unit, from said converted voltage by a process of calculating a subtraction processing for subtracting a voltage value of the constant voltage to generate the operation voltage after the operation from the converted voltage to produce A voltage calculation unit for outputting the calculation voltage;
A light source lighting device comprising: a light output control unit that inputs the calculation voltage from the voltage calculation unit and controls a light output of the light source according to the input calculation voltage.
前記光出力制御部は、
入力した前記演算電圧の大きさを調整可能な演算電圧調整部を
備えたことを特徴とする請求項1記載の光源点灯装置。
The light output controller is
The light source lighting device according to claim 1, further comprising a calculation voltage adjustment unit capable of adjusting a magnitude of the input calculation voltage.
前記光源点灯装置は、さらに、
制御電源を備え、
前記演算電圧調整部は、
3つの抵抗を備えると共に、前記3つの抵抗と、前記制御電源とに基づいて、前記演算電圧の大きさを調整可能であることを特徴とする請求項2記載の光源点灯装置。
The light source lighting device further includes:
With control power supply,
The calculation voltage adjustment unit includes:
3. The light source lighting device according to claim 2, wherein the light source lighting device includes three resistors and is capable of adjusting a magnitude of the calculation voltage based on the three resistors and the control power source.
前記光源は、
発光ダイオードであることを特徴とする請求項1〜3のいずれかに記載の光源点灯装置。
The light source is
The light source lighting device according to claim 1, wherein the light source lighting device is a light emitting diode.
請求項1〜4のいずれかに記載の光源点灯装置を備えた照明器具。   The lighting fixture provided with the light source lighting device in any one of Claims 1-4. 調光信号であるPWM信号を送信する調光器と、
請求項5記載の複数の照明器具とを備えた調光照明システム。
A dimmer for transmitting a PWM signal which is a dimming signal;
A dimming illumination system comprising the plurality of lighting fixtures according to claim 5.
JP2010023869A 2010-02-05 2010-02-05 Light source lighting device, lighting fixture, and dimming lighting system Expired - Fee Related JP5528143B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2010023869A JP5528143B2 (en) 2010-02-05 2010-02-05 Light source lighting device, lighting fixture, and dimming lighting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010023869A JP5528143B2 (en) 2010-02-05 2010-02-05 Light source lighting device, lighting fixture, and dimming lighting system

Publications (2)

Publication Number Publication Date
JP2011165363A JP2011165363A (en) 2011-08-25
JP5528143B2 true JP5528143B2 (en) 2014-06-25

Family

ID=44595830

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010023869A Expired - Fee Related JP5528143B2 (en) 2010-02-05 2010-02-05 Light source lighting device, lighting fixture, and dimming lighting system

Country Status (1)

Country Link
JP (1) JP5528143B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104853490A (en) * 2015-05-14 2015-08-19 科博达技术有限公司 PWM signal filtering method for automotive illumination system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6134189B2 (en) * 2013-04-04 2017-05-24 株式会社アイ・ライティング・システム LED lighting device and light source device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0785976A (en) * 1993-09-10 1995-03-31 Hitachi Lighting Ltd Dimming control system
JPH08153590A (en) * 1994-11-30 1996-06-11 Matsushita Electric Works Ltd Lighting system
JP3767144B2 (en) * 1997-12-22 2006-04-19 松下電工株式会社 Lighting device
JP2002231471A (en) * 2001-01-31 2002-08-16 Toshiba Lighting & Technology Corp Led lighting device and lighting system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104853490A (en) * 2015-05-14 2015-08-19 科博达技术有限公司 PWM signal filtering method for automotive illumination system

Also Published As

Publication number Publication date
JP2011165363A (en) 2011-08-25

Similar Documents

Publication Publication Date Title
TWI436689B (en) Lighting apparatus and control method thereof
TWI495247B (en) Cascaded power converter and method and integrated circuit for controlling the same
JP5579477B2 (en) Overcurrent prevention type power supply device and lighting fixture using the same
RU2554080C2 (en) Illumination device
TWI435527B (en) Light-emitting diode with dimming function
JPWO2011065047A1 (en) LED drive power supply device and LED illumination device
JP2011065922A (en) Led lighting device and illumination device
CN107787089B (en) LED lamp regulation and control system
KR101224950B1 (en) A apparatus of smart dimming converter for LED lamp
JP5528883B2 (en) LED drive circuit
JP6141211B2 (en) Light source driving device and lighting apparatus
JP5528143B2 (en) Light source lighting device, lighting fixture, and dimming lighting system
US9825703B2 (en) Optical communication device and control method thereof
JP6108143B2 (en) Overcurrent prevention type power supply device and lighting fixture using the same
JP7066060B2 (en) Drive circuit and related lamps
JP2017045592A (en) LED dimming device and LED dimming method
JP2017506806A (en) Driver device
JP2021086763A (en) Lighting device
KR20140070126A (en) Apparatus and method of operating the the illumination apparatus
JP5773786B2 (en) Light source lighting device and lighting fixture
TWI595802B (en) Dimming module, dimming method and lighting device
JP2018073702A (en) Illumination device and lighting fixture
JP2018098104A (en) Lighting device and luminaire
JP2011142043A (en) Lighting device
JP2011181857A (en) Semiconductor illumination dimming unit and integrated circuit

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20121217

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20131009

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20131015

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20131127

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20140318

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20140415

R150 Certificate of patent or registration of utility model

Ref document number: 5528143

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees