JP2014067552A - Dimmer and illuminating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dimmer capable of reducing the number of electric wires connected with light sources of different luminous colors, and to provide an illuminating device having this dimmer.SOLUTION: A dimmer 2 comprises: a power input part 7 having a first input part 13 and a second input part 14 connected to an AC power supply Vs; a power output part 8 having a first output part 15 and a plurality of second output parts 16 and 17 directly connected to the first input part 13; a plurality of phase control circuits 9 and 10 respectively interposed between wires 19 and 20 and between wires 21 and 22, the wires connecting between the second input part 14 and the plurality of second output parts 16 and 17; a light control signal input part 11 receiving a light control signal to the light sources 3 and 4 respectively connected between the first output part 23 and the plurality of second output parts 16 and 17, from the exterior; and a control circuit 12 respectively controlling the phase control circuits 9 and 10 so as to change dimming levels of the respective light sources 3 and 4 depending on the light control signal inputted to the light control signal input part 11.

Description

  Embodiments described herein relate generally to a dimmer that performs phase control of an AC power supply and a lighting device that controls dimming of a light source by the dimmer.

  There is provided an illuminating device that includes LED elements that emit different luminescent colors, and mixes the radiated light from the LED elements to change the light color to a desired light color to produce lighting. Some of these lighting fixtures have a phase-controlled dimming signal input from a phase-control dimmer, and the dimming ratios of a plurality of LED elements having different emission colors are controlled in accordance with the dimming signal. .

  For example, a red LED array that emits red light, a green LED array that emits green light, and a blue LED array that emits blue light are connected in parallel to the LED drive circuit, and the LED drive circuit is connected to each LED array. There is one that performs light adjustment and color adjustment of a lighting fixture by adjusting a current to flow (see, for example, Patent Document 1). One end side of each LED array is connected to a common output terminal of the LED drive circuit, and the other end side of each LED array is connected to an individual output terminal of the LED drive circuit.

  However, since the LED drive circuit controls the current value that flows to each LED array in accordance with the dimming signal, the lighting fixture uses a dimming rate in which the dimming rate of each LED array is preset for the dimming signal. And the desired toning is limited. That is, there is a demand for a lighting fixture that can arbitrarily mix light of different light emission colors and produce an arbitrary lighting effect.

  Currently, in order to arbitrarily mix light of different emission colors, LED elements that emit different emission colors are connected to individual dimmers (LED drive circuits). That is, the dimmer is provided with a pair of output terminals that are connected to the LED elements, and the pair of output terminals and the LED elements are connected by two electric wires.

JP2012-134001A (7th page, FIG. 1)

  Since the dimmer is connected to the LED elements that emit different emission colors by two electric wires, the number of electric wires increases as the number of LED elements of different emission colors increases. As a result, it takes time to connect the dimmer and the LED element, and there is a drawback that the cost of the lighting device increases.

  An object of an embodiment of the present invention is to provide a dimmer capable of reducing the number of electric wires connected to light sources having different emission colors and an illumination device including the dimmer.

  The dimmer of the embodiment includes a power input unit, a power output unit, a phase control circuit, a dimming signal input unit, and a control circuit.

  The power input unit includes a first input unit connected to the AC power source and a second input unit, and the power output unit is connected to the first input unit directly. An output unit and a plurality of second output units are provided.

  The phase control circuit is inserted into a plurality of wirings respectively connecting the second input unit and the plurality of second output units.

  The dimming signal input unit inputs a dimming signal for each light source connected between the first output unit and the plurality of second output units from the outside.

  The control circuit controls the phase control circuit to change the dimming level of each light source in accordance with the dimming signal input to the dimming signal input unit.

  According to the embodiment of the present invention, a plurality of second control circuits each having a phase control circuit interposed between the first output unit directly connected to the first input unit and the second input unit. Since the light sources are respectively connected to the output unit, the plurality of light sources can be connected to the first output unit by a common line, whereby the number of electric wires connecting the dimmer and the light source Can be expected to be reduced.

It is a schematic block diagram of the illuminating device which shows the 1st Embodiment of this invention. It is a schematic circuit diagram of a dimmer same as the above. It is a wave form diagram which shows the input-output in a dimmer same as the above. It is a flowchart which shows control of the control circuit of a dimmer same as the above. It is a schematic sectional side view of a lighting fixture same as the above. It is a schematic block diagram of a dimming operation device same as the above. It is a schematic sectional side view of the illuminating device which shows the 2nd Embodiment of this invention.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. First, a first embodiment of the present invention will be described.

  As shown in FIG. 1, the illumination device 1 according to the present embodiment includes a dimmer 2, first and second light sources 3 and 4, and a wire group 5. The first and second light sources 3 and 4 are disposed in the lighting fixture 6.

  The dimmer 2 includes a power input unit 7, a power output unit 8, phase control circuits 9 and 10, a dimming signal input unit 11, and a control circuit 12. The power input unit 7 has a ground side input terminal 13 as a first input unit and a hot side input terminal 14 as a second input unit. The ground side input terminal 13 and the hot side input terminal 14 are connected to a commercial AC power supply Vs, and input an AC voltage (AC 100 V).

  The power supply output unit 8 includes a ground-side output terminal 15 as a first output unit and hot-side output terminals 16 and 17 as a plurality of second output units. The hot side output terminals 16 and 17 are provided corresponding to the first and second light sources 3 and 4 as light sources. The ground side output terminal 15 is directly connected to the ground side input terminal 13 by a wiring 18. The hot side output terminal 16 is connected to the hot side input terminal 14 via the phase control circuit 9 by wirings 19 and 20. The hot side output terminal 17 is connected to the hot side input terminal 14 via the phase control circuit 10 by wirings 21 and 22.

  The first and second light sources 3 and 4 are connected to the power output unit 8 by the electric wire group 5. That is, the ground-side electric wire 23 and the hot-side electric wire 24 connected to the ground-side output terminal 15 and the hot-side output terminal 16 are connected to the first light source 3, and are connected to the ground-side output terminal 15 and the hot-side output terminal 17, respectively. The connected ground side electric wire 23 and hot side electric wire 25 are connected to the second light source 4.

  The phase control circuits 9 and 10 are respectively inserted between the hot side input terminal 14 and the hot side output terminals 16 and 17 and are connected to the hot side input terminal 14 and the hot side output terminals 16 and 17, respectively. That is, the phase control circuit 9 is connected to the wirings 19 and 20, and is connected to the hot side input terminal 14 and the hot side output terminal 16 by the wirings 19 and 20. The phase control circuit 10 is connected to the wirings 21 and 22, and is connected to the hot side input terminal 14 and the hot side output terminal 17 by the wirings 21 and 22.

  The phase control circuits 9 and 10 respectively perform phase control on the AC voltage of the commercial AC power supply Vs. The voltage phase-controlled by the phase control circuit 9 is output between the ground-side output terminal 15 and the hot-side output terminal 16, and the voltage phase-controlled by the phase control circuit 10 is output by the ground-side output terminal 15 and the hot-side output terminal. 17 is output. That is, the voltage phase-controlled by the phase control circuit 9 is input to the first light source 3, and the voltage phase-controlled by the phase control circuit 10 is input to the second light source 4.

  The dimming signal input unit 11 includes dimming signal input terminals 26 and 27. The dimming signal input terminals 26 and 27 are connected to an external dimming controller 28 and input dimming signals from the dimming controller 28. The dimming signal sets the dimming level of each of the first and second light sources 3 and 4 and is input to the control circuit 12.

  The control circuit 12 is formed to control the phase control circuits 9 and 10 in accordance with the dimming signal. That is, the control circuit 12 sends the control signal corresponding to the dimming signal to the phase control circuit so that the dimming level (dimming rate) of the first and second light sources 3 and 4 changes according to the dimming signal. 9 and 10, respectively.

  Hereinafter, the phase control circuits 9 and 10 and the control circuit 12 will be described in detail with reference to FIGS.

In FIG. 2, the phase control circuit 9 includes a triac TR1 connected to wirings 19 and 20, a rectifier DB1 connected to both ends of the triac TR1 via resistors R1 and R2, and a photocoupler connected between outputs of the rectifier DB1. It has PC1. The gate of the triac TR1 is connected to the positive input terminal of the rectifier DB1. The output of the rectifier DB1 is connected to the transistor Q1 of the photocoupler PC1. The anode side of the diode D1 of the photocoupler PC1 is connected to the microcomputer 31.

  The phase control circuit 10 includes a triac TR2 connected to the wirings 21 and 22, a rectifier DB2 connected to both ends of the triac TR2 via resistors R3 and R4, and a photocoupler PC2 connected between outputs of the rectifier DB2. It becomes. The gate of the triac TR2 is connected to the positive input terminal of the rectifier DB2. The output of the rectifier DB2 is connected to the transistor Q2 of the photocoupler PC2. The anode side of the diode D2 of the photocoupler PC2 is connected to the microcomputer 31.

  The control circuit 12 includes a rectifier DB3, a constant voltage source 30, a photocoupler PC3, and a microcomputer 31. The AC input side of the rectifier DB3 is connected to the ground side input terminal 13 and the hot side input terminal 14, and the DC output side is connected to the diode D3 of the photocoupler PC3 via resistors R5 and R6. The constant voltage source 30 is connected to the collector of the transistor Q3 of the photocoupler PC3 via the resistor R7. Further, the collector (connection point B) of the transistor Q3 is connected to the input terminal of the microcomputer 31. The emitter of the transistor Q3 is connected to the cathode side of each of the diodes D1, D2 of the photocouplers PC1, PC2.

  The constant voltage source 30 outputs a constant voltage, for example, DC 5V. The rectifier DB3 full-wave rectifies the AC voltage of the commercial AC power supply Vs, and applies the full-wave rectified voltage to both ends of the diode D3 of the photocoupler PC3 via the resistors R5 and R6. When the voltage across the diode D3 falls below Vf of the diode D3, the transistor Q3 of the photocoupler PC3 is turned off, and the input of the microcomputer 31 becomes high (H) by the resistor R7 and the constant voltage source 30. When the full-wave rectified voltage rises and the voltage across the diode D3 exceeds Vf, the transistor Q3 of the photocoupler PC3 is turned on, whereby the input of the microcomputer 31 is pulled down to the GND potential and goes low (L). Become. That is, the photocoupler PC3 detects a zero cross of the commercial AC power supply Vs. When this AC voltage is zero-crossed, a pulse voltage is generated as shown in FIG. This pulse voltage is input to the microcomputer 31. FIG. 3A shows the sine waveform of the AC voltage at point A in FIG. 2, that is, the AC voltage input to the phase control circuits 9 and 10, respectively.

  In FIG. 2, the microcomputer 31 has an input side connected to the dimming input terminals 26 and 27, and inputs a dimming signal from the dimming controller 28. The output side of the microcomputer 31 is connected to the anode of the diode D1 of the photocoupler PC1 of the phase control circuit 9 and the anode of the diode D2 of the photocoupler PC2 of the phase control circuit 10. As shown in FIG. 3C, the microcomputer 31 generates a rectangular control signal having a rising timing corresponding to the dimming signal, and in synchronization with the pulse voltage shown in FIG. Is output. The control voltage shown in FIG. 3C is a voltage waveform at point C in FIG. 2 applied to the anode of the diode D1 of the photocoupler PC1 (the anode of the diode D2 of the photocoupler PC2).

  When the control signal is applied to the anode of the diode D1 of the photocoupler PC1 of the phase control circuit 9, the transistor Q1 of the photocoupler PC1 is turned on by the high (H) control signal, and the DC of the rectifier DB1 is turned on by turning on the transistor Q1. The output side is turned on, a current flows to the input AC side, an on-voltage is generated at the gate of the triac TR1, and the triac TR1 is turned on. The on state of the triac TR1 is reset and turned off when the voltage of the commercial AC power supply Vs drops to 0V (corresponding to the zero crossing time). When the triac TR1 is on, an AC voltage of the commercial AC power supply Vs is generated between the ground side output terminal 15 and the hot side output terminal 16, and when the triac TR1 is off, the ground side output terminal 15 and the hot side output terminal No AC voltage is generated between 16. That is, an AC voltage is generated between the ground-side output terminal 15 and the hot-side output terminal 16 (point D in FIG. 2) over a period from the time when the control signal is turned on to the time when the AC voltage is zero-crossed. As shown in (d), a phase-controlled AC voltage (a phase control voltage with a controlled conduction angle) is generated.

  When the control signal is output to the anode of the diode D2 of the photocoupler PC2 of the phase control circuit 10, a phase-controlled AC voltage is applied between the ground-side output terminal 15 and the hot-side output terminal 17 as described above. Occur.

  FIG. 4 shows the control of the microcomputer 31. When the microcomputer 31 receives the dimming signal output from the dimming controller 28 (step S1), the microcomputer 31 determines whether the dimming signal is for the first light source 3 or the second light source 4. (Step S2). And the light control level (light control rate) of the 1st light source 3 or the 2nd light source 4 is calculated from a light control signal (step S3).

  Then, the ON width is calculated by multiplying the half cycle time of the AC voltage of the commercial AC power supply Vs input to the power input unit 7 by the dimming rate, and a rectangular control signal having the ON width is generated (step S4). . The control signal is output to the phase control circuit 9 or the phase control circuit 10 in synchronization with the pulse voltage input by turning off the transistor Q3 (step S5). Hereinafter, the above is repeated. The same control signal is output until the dimming level (dimming rate) for the first light source 3 or the second light source 4 is changed.

  The dimmer 2 formed as described above is connected to the first light source 3 and the second light source 4 by a wire group 5 as shown in FIG. The electric wire group 5 is a power cable having, for example, a ground side electric wire 23 and a plurality (two) of hot side electric wires 24 and 25. The first light source 3 is connected to the ground-side output terminal 15 and the hot-side output terminal 16 of the dimmer 2 by the ground-side electric wire 23 and the hot-side electric wire 24, and the phase control voltage phase-controlled by the phase control circuit 9. Enter. The second light source 4 is connected to the ground-side output terminal 15 and the hot-side output terminal 17 of the dimmer 2 by the ground-side electric wire 23 and the hot-side electric wire 25, and is phase-controlled by the phase control circuit 10. Input the control voltage.

  The 1st and 2nd light sources 3 and 4 are attached to the lighting fixture 6, as shown in FIG. The lighting fixture 6 is a hanging type lighting fixture suspended from a ceiling 32, and includes a fixture main body 33, sockets 34 and 34, and first and second light sources 3 and 4 as light sources.

  The instrument body 33 is made of, for example, aluminum (Al) having a thickness of 1.5 to 3 mm, and is formed in a bottomed cylindrical shape. On the outer peripheral surface 33a and the inner peripheral surface 33b of the appliance body 33, a cosmetic coating film (not shown) is formed. The instrument main body 33 is attached to an inner peripheral surface 33b on the back side by fitting a fixed body 35 formed in a cylindrical shape with a shallow bottom. The fixed body 35 is fixed by screws (not shown) from the outer peripheral surface 33a side.

  The sockets 34 and 34 are attached to the fixed body 35 via socket mounting bases 36 and 36. The two socket mounting bases 36 are attached to the fixed body 35 by screws (not shown). The socket 34 is attached to the socket mounting base 36 with a screw not having a symbol.

  The instrument body 33 has a support tube 38 inserted through a through hole (not shown) formed in the center of the bottom plate 37 and is screwed to a screw portion (not shown) formed on the outer peripheral surface 38a on the distal end side of the support tube 38. The bottom plate 37 is fastened by the nuts 39, 39. The support tube 38 is fixed to the ceiling 32 with a mounting plate 40 provided integrally with screws (not shown). Thereby, the instrument main body 33 is suspended from the ceiling 32.

  Further, an insertion hole (not shown) through which the electric wire group 5 is inserted is formed in the top plate 37 of the instrument body 33. An insulating bushing 41 is provided in the insertion hole, and the wire group 5 is inserted. The ground side electric wire 23 and the hot side electric wire 24 of the electric wire group 5 are connected to one socket 34, and the crossover wire 42 and the hot side electric wire 25 connected to the ground side electric wire 23 are connected to the other socket 34. .

  The socket 34 has an outer shape formed in a cylindrical shape, and has a female screw portion (not shown) having a male screw portion that is electrically connected by screwing the male screw portions of the caps of the first and second light sources 3 and 4, and the top of the cap. A contact piece (not shown) that is electrically connected by contacting the connecting portion is accommodated. In one socket 34, the ground-side electric wire 23 and the hot-side electric wire 24 of the electric wire group 5 are connected to the metal receiving and connecting pieces, and in the other socket 34, the metal receiving and connecting pieces are connected to the earth-side electric wire 23. The crossover wire 42 and the hot-side electric wire 25 are connected. The first light source 3 is attached to one socket 34, and the second light source 4 is attached to the other socket 34.

  The first and second light sources 3 and 4 are bulb-type LED lamps each having an E-shaped base, and emit light colors different from each other. Each of the bulb-type LED lamps 3 and 4 is provided with an LED module (not shown) on which an LED is mounted on a substrate and a lighting device (not shown) for dimming and lighting the LED. When the phase control voltage output from the dimmer 2 is input between the male screw portion and the top connection portion of the E-shaped base, the lighting device performs dimming lighting of the LEDs of the LED module according to the phase control voltage. Is formed.

  The light bulb shaped LED lamp 3 is formed such that the LED module emits light of a light bulb color, and the light bulb shaped LED lamp 4 is formed so that the LED module emits white light. Light bulb color light emitted from the light bulb shaped LED lamp 3 and white color light emitted from the light bulb shaped LED lamp 4 are respectively emitted from the opening 33c of the fixture body 33 to the external space and mixed to illuminate the external space. . The brightness and color tone of the illumination light are changed by changing the dimming level (dimming rate) of each of the bulb-type LED lamps 3 and 4. The dimming level (dimming rate) of each of the bulb-type LED lamps 3 and 4 is changed by operation with the dimming controller 28.

  As shown in FIG. 6, the dimming controller 28 includes a control unit 43, variable resistors VR <b> 1 and VR <b> 2 connected to the control unit 43, an output unit 44, and a power supply unit 45. The variable resistors VR1 and VR2 are connected to manually operated knobs and faders, and their resistance values are changed. The variable resistor VR 1 corresponds to the first light source 3, and the variable resistor VR 2 corresponds to the second light source 4.

  The control unit 43 calculates a dimming rate for dimming and lighting the first light source 3 according to the resistance value of the variable resistor VR1, and generates a dimming signal. Further, the control unit 43 calculates a dimming rate for dimming and lighting the second light source 4 according to the resistance value of the variable resistor VR2, and generates a dimming signal.

  The output unit 44 is configured to output the dimming signal generated by the control unit 43 to a transmission line (not shown) connected to the output terminals 46a and 46b. The dimming signal is input to dimming signal input terminals 26 and 27 of the dimmer 2 to which the transmission line is connected. The power supply unit 45 is configured to generate a predetermined DC power supply and supply it to the control unit 43 and the output unit 44 as an operation power supply.

  Next, the operation of the first embodiment of the present invention will be described.

  In the dimmer 2, the ground-side input terminal 13 and the ground-side output terminal 15 are directly connected by a single wire 18, and the hot-side input terminal 14 and a plurality of hot-side output terminals 16 and 17 are connected. Since the phase control circuits 9 and 10 are inserted, the voltages obtained by controlling the phase of the AC voltage by the phase control circuits 9 and 10 are the ground side output terminal 15, the hot side output terminal 16, the ground side output terminal 15, and the like. Output to the hot side output terminal 17 respectively.

  The phase control voltage output between the ground side output terminal 15 and the hot side output terminals 16 and 17 is controlled by the control circuit 12 in accordance with the dimming signal output from the dimming controller 28. . Thus, the first light source 3 connected to the ground side output terminal 15 and the hot side output terminal 16 and the second light source 4 connected to the ground side output terminal 15 and the hot side output terminal 17 Each of them is turned on at an arbitrary dimming level (dimming rate) by manual operation of the device 28.

  The light bulb color light emitted from the first light source 3 and the white color light emitted from the second light source 4 are mixed (mixed) at an arbitrary luminous flux and ratio. Thereby, the effect of the illumination effect in the illumination space is enhanced.

  Then, in one socket 34 to which the first light source 3 is attached, the ground-side electric wire 23 and the hot-side electric wire 24 are connected to the earth-side output terminal 15 and the hot-side output terminal 16 of the dimmer 2, respectively. In the other socket 34 to which the light source 4 is attached, the ground side electric wire 23 and the hot side electric wire 25 are connected to the ground side output terminal 15 and the hot side output terminal 17 of the dimmer 2, respectively. Here, the ground side electric wire 23 can be made into one by connecting between the one socket 34 and the other socket 34 with the connecting wire 42 connected to the earth side electric wire 23. Thereby, the number of electric wires of the electric wire group 5 can be reduced.

  According to the dimmer 2 of the present embodiment, the phase control circuit 9 is connected between the ground-side output terminal 15 directly connected to the ground-side input terminal 13 by one wiring 18 and the hot-side input terminal 14. , 10 are interleaved, and a plurality of hot side output terminals 16 and 17 are provided, and a phase control voltage obtained by controlling the phase of the AC voltage between the ground side output terminal 15 and the hot side output terminals 16 and 17 is output. Therefore, the plurality of first and second light sources 3 and 4 respectively connected between the ground side output terminal 15 and the hot side output terminals 16 and 17 can be turned on at an arbitrary dimming level. Thus, the lighting effect can be produced in various ways, and it can be formed inexpensively with a simple configuration.

  Moreover, according to the illuminating device 1 of this embodiment, the some socket 34, 34 (1st) respectively connected between the earth | ground side output terminal 15 and the some hot side output terminals 16 and 17 of the light control device 2 is. And the second light source 3, 4) has one earth-side electric wire 23 connected to the earth-side output terminal 15 by connecting the sockets 34, 34 with a jumper 42 connected to the earth-side electric wire 23. Therefore, the electric wire group 5 can be made into one earth side electric wire 23 and a plurality of hot side electric wires 24 and 25, and the number of electric wires in the electric wire group 5 can be reduced. Thereby, it has an effect that the connection between the dimmer 2 and the sockets 34 and 34 (first and second light sources 3 and 4) can be simply and easily performed.

  In the present embodiment, the power output unit 8 of the dimmer 2 is provided in two of the hot side output terminals 16 and 17, but three or more hot side output terminals may be provided in the same configuration. Good.

  Moreover, although the power input part 7, the power output part 8, and the light control signal input part 11 were each formed in the terminal, it is not restricted to this, For example, a connector may be sufficient.

  Moreover, although the lighting fixture 6 was comprised in the hanging type, it is not restricted to this, The embedding type | molds, such as a downlight, and a direct attachment type lighting fixture may be sufficient.

  Next, a second embodiment of the present invention will be described.

  The illuminating device 51 of this embodiment is comprised as shown in FIG. In FIG. 7, the same parts as those in FIGS. 1, 5, and 6 are denoted by the same reference numerals, and description thereof is omitted.

  The illuminating device 51 includes a dimmer 2 shown in FIG. 1, first and second light sources 3 and 4 as light sources, a lighting fixture 52, and a dimming controller 28 shown in FIG.

  In the lighting fixture 52, the dimmer 2 is disposed on the fixed body 35 in the lighting fixture 6 in FIG. 5. A dimming signal input unit 11 (not shown) of the dimmer 2 is connected to a transmission cable 53 connected to the dimming controller 28. A power cable 54 introduced into the support tube 38 from the back side of the ceiling 32 is drawn into the instrument body 33 and connected to a power input unit 7 (not shown) of the dimmer 2. The power cable 54 is connected to a commercial AC power source Vs. The other structure of the lighting fixture 52 is the same as that of the lighting fixture 6 shown in FIG. Here, the instrument main body 33 constitutes the apparatus main body of the present embodiment.

  One socket 34 to which the first light source 3 is attached is connected to the ground side output line 23 and the hot side electric wire 24 led out from the dimmer 2. In addition, the other socket 34 to which the second light source 4 is attached is connected to the crossover wire 42 connected to the ground side output line 23 and the hot side electric wire 25.

  The dimming controller 28 is provided with faders 55a and 55b. The fader 55a changes the resistance value of the variable resistor VR1 by moving on the straight line. The fader 55b changes the resistance value of the variable resistor VR2 by moving on the straight line. That is, the dimming level (dimming rate) of the first light source 3 is changed by moving the fader 55a, and the dimming level (dimming rate) of the second light source 4 is changed by moving the fader 55b. Is done.

  When the first and second light sources 3 and 4 are turned on at an arbitrary dimming level (dimming rate), the light bulb color light emitted from the first light source 3 and the second light source 4 The emitted white color light is mixed (mixed color) at an arbitrary luminous flux and ratio. Thereby, the effect of the production in the illumination space is enhanced.

  According to the illuminating device 51 of the present embodiment, the first and second light sources 3, 4 are composed of one ground-side electric wire 23 led out from the dimmer 2 and a plurality of hot-side electric wires 24, 25. Since the sockets 34 and 34 to be attached are connected by the connecting wire 42 connected to the ground-side electric wire 23, it can be connected to the sockets 34 and 34, so that the dimmer 2 and the sockets 34 and 34 can be connected ( Wiring) can be made simple and easy.

  In the present embodiment, the dimmer 2 is disposed in the instrument main body 33, but may be installed outside the instrument main body 33.

  DESCRIPTION OF SYMBOLS 1,51 ... Illuminating device, 2 ... Light control device, 3 ... 1st light source as a light source, 4 ... 2nd light source as a light source, 7 ... Power supply input part, 8 ... Power supply output part, 9,10 ... Phase Control circuit 11 dimming signal input unit 12 control circuit 13 ground input terminal as first input unit 14 hot input terminal second input unit 15 first output Ground side output terminal as a part, 16, 17 ... hot side output terminal as a second output part, 19, 20, 21, 22 ... wiring, 33 ... instrument body as a device body

Claims (2)

A power input section having a first input section and a second input section connected to an AC power source;
A power output unit having a first output unit and a plurality of second output units directly connected to the first input unit;
A plurality of phase control circuits respectively inserted in wirings connecting the second input section and the plurality of second output sections;
A dimming signal input unit for inputting a dimming signal for each light source connected between the first output unit and the plurality of second output units from the outside;
A control circuit for controlling the phase control circuit to change the dimming level of each light source in accordance with the dimming signal input to the dimming signal input unit;
A dimmer characterized by comprising: A dimmer according to claim 1;
A plurality of light sources respectively connected between the first output unit and the plurality of second output units of the dimmer and emitting different light colors;
An apparatus body in which the light source is disposed;
An illumination device comprising:

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