JPH0611298U - Dimming system - Google Patents

Abstract

(57) [Abstract] [Purpose] It is intended to provide a dimming system capable of performing a dimming operation of a lighting device for fluorescent lamp dimming by using a dimmer for an incandescent lamp. [Structure] An incandescent lamp dimmer 10 outputs a phase control output obtained by controlling the phase of a commercial AC power source AC to an adapter 11 through a phase control signal line 13. The adapter 11 creates a pulse signal having a duty corresponding to the conduction phase angle of the phase control output and sends it to the lighting device 12 for fluorescent light dimming via the signal line 14. Fluorescent lamp dimming lighting device 12 that receives this pulse signal
Controls the dimming level (dimming ratio) of the fluorescent lamp LB according to the duty ratio of the pulse signal. In this way, the fluorescent lamp LB can be controlled by operating the incandescent lamp dimmer 10.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a dimming system.

[0002]

[Prior art]

 In general, the dimming of an incandescent lamp is performed by changing the conduction phase angle of the phase control element provided in the controller 1 inserted between the incandescent lamp LA and the commercial AC power source AC as shown in FIG. The phase is controlled (the shaded area indicates the conduction section) and the ramp power of the incandescent lamp LA is varied. The shaded area in FIG. 13 indicates the conduction phase.

The adjustment of the conduction phase angle is performed by operating the operation unit 2 of the slide variable resistor provided in the controller 1 to change the time constant and change the phase that triggers the phase control element as shown in FIG. I am supposed to do it. On the other hand, for the dimming of fluorescent lamps, there was a dimming ballast that controls the lamp current by phase control as described above, but in recent years it is supposed to be performed by a fluorescent lamp dimming lighting device 5 using an inverter circuit. It has become. As shown in FIG. 15, the fluorescent lamp dimming lighting device 5 receives the commercial AC power supply AC from the controller 3 through the load output line 4 and sends a signal for determining the dimming level through the signal line 6. I'm supposed to receive it. That is, as shown in FIG. 16, a direct current (for example, 10 V direct current) pulse signal is sent from the controller 3 to each dimming lighting device 5 through the signal line 6, and each dimming lighting device 5 outputs this pulse signal. The dimming ratio of the fluorescent lamp LB is controlled by controlling the lighting circuit including the inverter circuit so that the dimming ratio according to the duty ratio (D / T) is obtained.

In this case, since the fluorescent lamp LB is turned on at a high frequency, there is no flicker of light compared with the case where the fluorescent lamp LB is turned on at a commercial frequency by a copper-iron type ballast, and since the efficiency is high, it is possible to save power and further reduce the weight. , Has the characteristic of high power factor. Further, when dimming, the distortion of the input current waveform is reduced, and the generation of noise and flicker are extremely small.

[0005]

[Problems to be solved by the device]

 By the way, since fluorescent lamps LB are frequently used in Japan, unlike Europe and America, when the fluorescent lamps LB are dimmed using the fluorescent lamp dimming lighting device 5 using the controller 3 and the inverter circuit as described above, the controller 3 is used. Since the electric power is supplied from the load output line 4 from the load output line, there is a problem in that the load capacity is limited and a total of four lines, the signal line 6 and the load output line 4, are required. In the case where the dimming cannot be performed together and the incandescent lamp LA is dimmed to give a wide range of lighting effects, it is necessary to separately provide a dimmer.

The present invention has been made in view of the above problems, and an object thereof is to use an off-the-shelf dimmer for incandescent lamps that dimmers an incandescent lamp by phase control. To provide a dimming system capable of performing a dimming operation of a lighting control device for a lamp dimming device and connecting two wires between the lighting device for a fluorescent lamp dimming device and a dimmer for an incandescent lamp serving as a controller. is there.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a dimmer for an incandescent lamp that controls the phase of a commercial AC power source connected to the incandescent lamp with a phase control element, and a dimmer for this incandescent lamp. A pulse voltage generator that generates a pulse signal with a duty ratio according to the conduction phase angle of the phase control output of the optical device, and the lamp power of the fluorescent lamp is controlled according to the duty ratio of this pulse signal to perform dimming. And a lighting device for dimming a fluorescent lamp.

[0008]

[Action]

 According to the configuration of the present invention, the pulse voltage generator generates a pulse signal having a duty ratio corresponding to the conduction phase angle of the phase control output from the dimmer for an incandescent lamp, and the pulse signal is generated by the fluorescent lamp controller. By sending it to the lighting device for light, the dimming level of the lighting device for fluorescent lamp dimming can be set, so that the dimmer for incandescent lamps can be used as a controller for the lighting device for fluorescent light dimming. At the same time, dimming control of the incandescent lamp is also possible, and it is possible to produce lighting that combines a fluorescent lamp and an incandescent lamp.

The wiring from the dimmer for incandescent lamps to the lighting device for fluorescent lamp dimming requires only two wires. The existing fluorescent lamp lighting device is used as the lighting device for fluorescent lamp dimming, and the wall switch is used as the incandescent lamp. It is possible to use the existing wiring as it is by replacing it with the dimmer. Furthermore, since the power consumption in the voltage generator is very small, it is necessary to increase the load capacity of the dimmer for incandescent lamps even when the load capacity of the lighting device for fluorescent lamp dimming increases if the phase control of the incandescent lamp is not performed. There is no.

[0010]

【Example】

 An example will be described below. (Embodiment 1) FIG. 1 shows a system configuration of this embodiment. In this system, a commercial AC power supply AC is phase-controlled by a phase control element, and a hatched portion is conductive as shown in FIG. 2 (a). The incandescent lamp dimmer 10 that generates a phase control output and the phase control output of the incandescent lamp dimmer 10 are input and converted to a DC pulse signal having a duty ratio according to the conduction phase angle. The adapter 11 includes a fluorescent lamp dimming lighting device 12 including an inverter circuit that controls the dimming level (dimming ratio) of the fluorescent lamp LB by the duty ratio of the pulse signal from the adapter 11. Consists of a line connected to one pole of the commercial AC power supply AC and a line connected to the other pole of the commercial AC power supply AC via the phase control element of the dimmer for incandescent lamp 1 Connect the phase control signal line 13 In addition, a two-wire signal line 14 for transmitting a pulse signal is connected between the adapter 11 and the fluorescent lamp dimming lighting device 12.

A commercial AC power supply AC is connected to the fluorescent lamp dimming lighting device 12 as a power source for lighting the fluorescent lamp LB, and the adapter 11 is stable even when the conduction phase angle of the phase control output changes. The commercial AC power supply AC is connected to obtain the above-mentioned power supply. As shown in FIG. 3, the adapter 11 is composed of a rectifier circuit 20, a level change circuit 21, a drive circuit 22, and a frequency conversion circuit 23, and a voltage generation unit and a power supply unit (not shown). The rectifier circuit 20 performs full-wave rectification on the phase control output (shown in FIG. 2A) from the dimmer 10 for incandescent lamps, and the level change circuit 21 is a rectifier circuit. The full-wave rectified waveform obtained in 20 is cut to a constant level VL (for example, 10 V). The drive circuit 22 inputs the output signal of the level changing circuit 21 as a drive signal, and outputs a pulse signal of, for example, DC10V having a duty ratio according to the conduction phase angle of the phase control output as shown in FIG. 2 (c). To do. The frequency conversion circuit 23 is for changing the signal frequency.

FIGS. 4A and 4B are embedded wiring devices configured by integrating the adapter 11 used in this embodiment, the incandescent lamp dimmer 10 and another incandescent lamp dimmer 10 ′. The front view and the rear view of the controller 15 of the mold are shown, in which the adapter 11 and the dimmers 10 and 10 ′ for incandescent lamps are constructed in the same size as the series module size of the embedded wiring equipment, respectively. It is fixed to. Here, the incandescent lamp dimmers 10 and 10 'have the same configuration, and the output of the incandescent lamp dimmer 10 used for the dimming control operation of the fluorescent lamp dimming lighting device 12 is controlled. One of the terminals is connected to one of the signal input terminals of the adapter 11, and a commercial AC power supply AC is connected between the other of the output terminals of the dimmer 10 for incandescent lamp and the other of the signal input terminals of the adapter 11. There is. The line used for these connections is the phase control signal line 13 described above.

The adapter 11 has a commercial AC power supply AC connected to a power supply input terminal, and a fluorescent lamp dimming lighting device 12 connected to a signal line connection terminal via a signal line 14. On the other hand, the incandescent lamp dimmer 10 'connects the incandescent lamp LA to the output terminal via the commercial AC power supply AC. Thus, in this embodiment, the conduction phase angle of the phase control output is changed by operating the operation portion 16 of the slide variable resistor for setting the dimming level provided on the surface of the dimmer 10 for incandescent lamp. The voltage generator of the adapter 11 outputs a pulse signal with a changed duty ratio according to the change of the conduction phase angle. Upon receiving the pulse signal, the fluorescent lamp dimming lighting device 12 controls the dimming level (dimming ratio) of the fluorescent lamp LB according to the duty ratio of the pulse signal.

In this way, the fluorescent lamp LB can be controlled by operating the incandescent lamp dimmer 10. Further, by operating the incandescent lamp dimmer 10 ', the incandescent lamp LA can be dimmed by the phase control output, and it is possible to broaden the lighting effect in combination with the dimming of the fluorescent lamp LB. Become.

The configuration of the adapter 11 includes the following in addition to the configuration shown in FIG. That is, as shown in FIG. 5, the light emitting diode D in which the photocoupler PH is connected in anti-parallel is shown. ₁ , D₂The phase control output is detected by and the phototransistor PT is turned on by the detected output, and the cycle T₀And the off-duty width is τ₀To obtain a pulse signal that is This pulse signal enables the count operation of the latched counter CT during "H", and the counter CT is the clock generation circuit CLK.₁The clock from is counted while the pulse signal is "H". Here, the clock generation circuit CLK ₁ The frequency of the clock output from is the commercial AC power supply frequency f to be used.₀It is set to be 256 times the switch SW₀Is the commercial AC power supply frequency to be used f₀Is used to switch the clock frequency by turning it on and off.

Here, by setting the clock frequency to 256 times the commercial AC power source frequency f ₀ used as described above, the maximum count value in the counter CT becomes 256, and this count value n is an 8-bit parallel signal. It can be output as. Of course, the clock frequency may be set to 16 times or 512 times the commercial AC power supply frequency f ₀ according to the type of counting.

The count value n of the counter CT is the preset value of the preset counter PC. The preset counter PC counts a clock of a changed frequency f ₁ (for example, 1 KHz) × 256 generated from the clock generation circuit CLK _{2 as} shown in FIG. The H "signal is output as shown in FIG. 6 (a). Here, in the preset counter PC, the down counter DC down-counts the clock from the clock generation circuit CLK ₂ and outputs the signal every fixed period T ₁ (= 1 / f ₁ ) (shown in FIG. 6 (c)). ) Is started at the timing of rising.

Therefore, the transistor Q is output by the output of the preset counter PC.₁Turns on and off, cycle T₁And the off-duty width corresponding to the conduction phase angle is τ₀Off-duty width τ according to the pulse signal of₁Will output a pulse signal with ₁ Thus, the dimming level is set in the fluorescent lamp dimming lighting device 12. FIG. 7 shows a specific circuit of another adapter 11. In this circuit, a magnitude comparator MC is used instead of the preset counter. This magnitude comparator MC is the same as the circuit of FIG. 5 described above. The count value n from the counter CT and the clock generation circuit CLK₂Change frequency f from₁(For example, 1 KHz). Compare with the count value n'of the counter CT 'that counts the clock of the frequency of 256. When the count value n is larger than n', the output is "H", and conversely, when it is small, "L" is output. Then, while the count value n is constant, the count value n'of the counter CT 'changes in 256 steps from 0 to 225.

A pulse signal shown in FIG. 8 is output from the magnitude comparator MC to drive the transistor Q ₁ and a pulse signal for setting the dimming level of the fluorescent lamp dimming lighting device 12 is output. To be done. (Second Embodiment) In the first embodiment, the adapter 11 is provided so as to be adjacent to the incandescent lamp dimmer 10, but in the present embodiment, the adapter 11 is installed in the fluorescent lamp dimming lighting device 12 as shown in FIG. In addition, the phase control signal line 13 that is built into the lighting fixture 17 and sends the phase control output from the dimmer 10 for incandescent lamps has the adapter 11 and the fluorescent lamp LB built in each lighting fixture 17. At the same time, incandescent lamps LA for dimming are connected in parallel.

When the conduction phase angle of the phase control output is changed by operating the operation unit 16 of the incandescent lamp dimmer 10, the incandescent lamp LA connected to the phase control signal line 13 changes the phase control output. The adapter 11 of each lighting fixture 17 is dimmed at a dimming level according to the conduction phase angle, and the adapter 11 outputs a pulse signal having a duty ratio corresponding to the conduction phase angle of the phase control output. Each fluorescent lamp dimming lighting device 12 dims the fluorescent lamp LB at a dimming level according to the duty ratio.

As described above, in the present embodiment, the incandescent lamp LA can be dimmed at the same time as the dimming of the fluorescent lamp LB by operating the incandescent lamp dimmer 10, and a wide range of lighting effects can be obtained. Wear. In addition, since the lighting fixture 17 has a configuration in which the adapter 11 and the fluorescent light dimming lighting device 12 are built in, it is possible to replace the existing lighting fixture and replace the wall switch with the incandescent lamp dimmer 10 to replace the existing lighting fixture. The wiring of can be used as it is.

Third Embodiment By the way, in each of the above-mentioned embodiments, the dimmer 10 for incandescent lamps, the adapter 11, and the lighting device 12 for fluorescent lamp dimming are used in combination. It is equipped with a light control device and stores multiple scenes that combine the lighting load lights that are dimming controlled by each dimmer, and is applied to a controller that can play each scene with a single switch. This is the present embodiment.

FIG. 10 shows the front surface of the controller 30 of the embodiment. The controller 30 is provided with four dimmers for incandescent lamps, and the dimming level of each dimmer is increased by the up switch Su and the down switch Sd. You can set the operation with to create a scene with any combination of lights, and store the state of the scene in the built-in memory by operating the memory switch Sm along with the playback switch SWa ... Corresponding to this scene. . Then, at the time of reproduction, by operating the corresponding reproduction switch SWa ..., Data is read from the built-in memory, the dimming level of each dimmer is reproduced and each illumination can be performed. In this embodiment, the function of the adapter 11 for generating a pulse signal having a duty ratio for setting the dimming level of the fluorescent lamp dimming lighting device 12 based on the phase control output of each dimmer is described below. It is provided so as to correspond to the dimmer, and whether or not to operate the function of the adapter 11 can be selectively set. The selective setting is performed by the controller 30 as shown in FIGS. 11 (a) and 11 (b). By switching the setting switches S _{1 to} S ₄ provided on the back side, you can select three ways: dimming a of the incandescent lamp LA, on / off control b, and fluorescent lamp dimming c. When the ON / OFF control is selected, the incandescent lamp LA is connected to the heavy-duty load terminals 31 _{1 to} 31 ₄ provided corresponding to each dimmer. There is also a so connecting the signal line 14 from the weak for, i.e. pin 321 _to 323 fluorescent lamp dimming lighting device 12 to the _fourth pulse signal sent out when selecting a fluorescent lamp dimming. Note that 32 ₀ is a common terminal.

As described above, in this embodiment, in addition to the dimming of the incandescent lamp LA, the dimming of the fluorescent lamp LB can be performed, and a wide range can be obtained by the configuration of the lighting effect, so that an atmosphere is created and an appropriate illuminance is adjusted. It is easy to obtain, and it is possible to give a fade to the change in light by using a microcomputer, and it is also possible to smooth the change in light of the fluorescent lamp LB. Further, in the fluorescent lamp dimming, the output capacity from the controller 30 side is only the amount of the pulse signal sent, so the load capacity can be increased. When the illuminance is insufficient, most of the rated load capacity of the controller 30 can be used for spot lighting, and when the illuminance is insufficient, the capacity on the fluorescent lamp LB side can be increased. In particular, it can be used as a very effective one in offices and stores that frequently use fluorescent lamps LB.

[0025]

[Effect of device]

 The present invention is a dimmer for an incandescent lamp that controls the phase of a commercial AC power source connected to the incandescent lamp with a phase control element, and a phase control output of the dimmer for this incandescent lamp is electrically connected. A pulse voltage generator that generates a pulse signal with a duty ratio according to the phase angle, and a fluorescent lamp for dimming lighting that controls the lamp power of the fluorescent lamp according to the duty ratio of this pulse signal. Since it is composed of a device, it is possible to generate a pulse signal with a duty ratio according to the conduction phase angle of the phase control output from the dimmer for incandescent lamps in the pulse voltage generator, and therefore the dimmer for incandescent lamps. Operation, you can set the dimming level of the lighting device for fluorescent light dimming, and at the same time, you can control the dimming of the incandescent lamp, making it possible to create a combined lighting of the fluorescent and incandescent lamps. Wiring from the dimmer for incandescent lamps to the lighting device for fluorescent lamp dimming is 2 By replacing the existing fluorescent lamp lighting equipment with a lighting device for fluorescent lamp dimming, and replacing the wall switch with an incandescent lamp dimmer, it is possible to use the existing wiring as it is, and generate voltage again. Since the power consumption of the incandescent lamp is very small, it is not necessary to increase the load capacity of the dimmer for incandescent lamps if the load capacity of the lighting device for fluorescent lamp dimming increases if the phase control of the incandescent lamp is not performed. There is.

[Brief description of drawings]

FIG. 1 is a system configuration diagram showing a first embodiment of the present invention.

FIG. 2 is a waveform diagram for explaining the operation of the above.

FIG. 3 is a block diagram of the above adapter.

FIG. 4A is a front view of the above controller.
(B) is a rear view of the same controller.

FIG. 5 is a circuit diagram of another example of the above adapter.

FIG. 6 is a waveform chart for explaining the operation of another example of the above adapter.

FIG. 7 is a circuit diagram of another example of the above adapter.

FIG. 8 is a waveform chart for explaining the operation of another example of the above adapter.

FIG. 9 is a system configuration diagram showing a second embodiment of the present invention.

FIG. 10 is a front view of the controller according to the third embodiment of the present invention.

FIG. 11A is a rear view of the above controller. (B) is explanatory drawing of the setting switch same as the above.

FIG. 12 is a configuration diagram of a conventional dimming system for an incandescent lamp.

FIG. 13 is a waveform diagram of the phase control output of the above.

FIG. 14 is a front view of the above light controller.

FIG. 15 is a configuration diagram of a conventional fluorescent light control system.

FIG. 16 is a waveform diagram of a pulse signal for setting the dimming level in the above.

[Explanation of symbols]

 10 Incandescent lamp dimmer 11 Adapter 12 Fluorescent lamp dimming lighting device 13 Phase control signal line 14 Signal line LB Fluorescent lamp AC Commercial AC power supply

Claims (1)

[Scope of utility model registration request] 1. A dimmer for an incandescent lamp that dims the incandescent lamp by controlling the phase of a commercial AC power source connected to the incandescent lamp with a phase control element, and conduction of a phase control output of the dimmer for the incandescent lamp. A pulse voltage generator that generates a pulse signal having a duty ratio according to the phase angle, and a fluorescent lamp dimming lighting device that controls the lamp power of the fluorescent lamp according to the duty ratio of the pulse signal to perform dimming. Dimming system consisting of.