JP2013069501A - Lighting device and illuminating device using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device having a high convenience, and to provide an illuminating device using the same.SOLUTION: An illuminating device 1 has: a lighting load 2 lighting up when a power is supplied; and a lighting device 3 making the lighting load 2 light up. The lighting device 3 has: a power supply part 31 supplying the power to the lighting load 2; and a microcomputer 33 controlling the power supply part 31. The microcomputer 33 has: a lighting controller 333 setting a power value of the power to be supplied from the power supply part 31 to the lighting load 2; and a block detector 334 detecting temporary block for a predetermined time period or shorter by a switch 34 that can block energization between an external power source 5 and the power supply part 31. The lighting controller 333 changes the power to be supplied from the power supply part 31 to the lighting load 2 to a prescribed value when the block detector 334 detects the temporary block.

Description

  The present invention relates to a lighting device for lighting a lighting load and a lighting device using the lighting device.

  In recent years, LEDs (Light Emitting Diodes) have become widespread as illumination light sources. Along with this, the lighting device is required to be low in cost and high in functionality.

  LEDs are easier to control the light color than incandescent bulbs and discharge lamps, and as a result, many LED lighting devices for dimming and toning control according to the situation have been developed (see, for example, Patent Document 1). . In particular, lighting control with high color reproducibility can be realized by individually performing dimming control on the RGB three types of LED outputs.

  By the way, in the light control system which changes a lighting state and lights many LED simultaneously, there existed a problem that it did not become a desired light control level by the error of a light control level. That is, when a single dimming signal is sent to a plurality of lighting devices, a dimming error occurs due to a reading error in each lighting device.

  In order to reduce such a reading error of the dimming signal, four-line dimming is effective in which the dimming signal is transmitted to each lighting device through a signal line (dimming signal line) dedicated to the dimming signal.

JP 2011-171006 A

  By the way, although such a lighting device is installed in various places, if a dimming signal line is connected to all of the lighting devices, it may be omitted because of the construction cost.

  When the dimming signal line is omitted as described above, the dimming signal is not input to the lighting device, so that the lighting state of the lighting load is constant. If the lighting state when the dimming signal line is omitted is suitable for the space effect, there is no problem, but if the lighting state is not suitable, an uncomfortable feeling is caused. For this reason, control such as shutting off the power supply of the lighting device and turning off the lighting load is performed. Originally, it could be replaced with a low-cost lighting device without a dimming function, but there were new problems such as color mismatch.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a highly convenient lighting device and a lighting device using the same.

  The lighting device of the present invention continuously changes the power value of the power supplied from the power supply unit to the lighting load in accordance with a lighting control signal indicating the lighting control content, and a power supply unit that supplies power to the lighting load A lighting control unit, and a cut-off detection unit that detects a temporary cut-off for a predetermined time or less by an energization cut-off unit that can cut off the energization between an external power supply and the power supply unit, the lighting control unit, When the interruption detection unit detects the temporary interruption, the supply power is changed to a predetermined specified value.

  The lighting device includes a signal detection unit that detects the presence or absence of the lighting control signal from a voltage level of the lighting control signal, and the lighting control unit is detected by the signal detection unit when the lighting control signal is not input. In this case, it is preferable to change the supplied power to the specified value in accordance with the detection result of the interruption detection unit.

  In this lighting device, the lighting load is a light source that emits light of a plurality of colors, and the lighting control unit sets the supply power so as to change the light color of the lighting load according to the lighting control signal. On the other hand, it is preferable that the supplied power is changed so that the lighting load has a predetermined light color when the interruption detection unit detects the temporary interruption.

  In this lighting device, the lighting control signal is a conduction phase angle of phase dimming, and the lighting control unit adjusts the supplied power so as to continuously dim the lighting load according to the conduction phase angle. It is preferable to set.

  In this lighting device, it is preferable that the lighting control unit gradually increase the supplied power to a predetermined power value when energization is resumed after the temporary interruption occurs.

  In this lighting device, the lighting load is a light source that emits light of a plurality of colors, and the lighting control unit keeps the light color of the lighting load constant when energization resumes after the temporary interruption occurs. However, it is preferable that the supply power is gradually increased to shift to the predetermined power value.

  In this lighting device, it is preferable that the predetermined time that the interruption detection unit detects the temporary interruption is not less than 0.2 seconds and less than 2 seconds.

  In this lighting device, it is preferable that the signal detection unit maintains the detection result detected before the temporary interruption even during the temporary interruption.

  The illuminating device of this invention is equipped with the said lighting device and the lighting load which lights up, when electric power is supplied from the said lighting device.

  According to the present invention, both the lighting control according to the lighting control signal and the lighting control according to the operation of the energization cutoff unit can be performed, so that convenience can be enhanced.

1 is a circuit diagram of a lighting device according to Embodiment 1. FIG. In the illuminating device which concerns on the same as the above, it is a characteristic view which shows the color temperature with respect to a light control signal, and a light beam. (A) is a state transition diagram of the lighting device according to the above, (b) is a state transition diagram of a variation of the lighting device according to the above, (c) is a state transition diagram of another variation of the lighting device according to the above. is there. It is a time chart which shows an example of operation | movement of the illuminating device which concerns on the same as the above. In the modification of the illuminating device which concerns on the same as the above, it is a characteristic view which shows the color temperature with respect to a light control signal, and a light beam. 6 is a time chart illustrating an example of an operation of the lighting apparatus according to the second embodiment. In the illuminating device which concerns on Embodiment 3, it is a characteristic view which shows the color temperature with respect to a light control signal, and a light beam. It is a circuit diagram of the illuminating device which concerns on Embodiment 4. It is a time chart for demonstrating operation | movement of the illuminating device which concerns on the same as the above. In the illuminating device which concerns on the same as the above, it is a characteristic view which shows the color temperature with respect to a light control signal, and a light beam.

  In the following first to fourth embodiments, a lighting device for lighting a lighting load and a lighting device using the lighting device will be described.

(Embodiment 1)
As illustrated in FIG. 1, the lighting device 1 according to the first embodiment includes a lighting load 2 that emits light of a plurality of colors and a lighting device 3 that lights the lighting load 2. An external power supply 5 is connected to the input side of the lighting device 3, and a lighting load 2 is connected to the output side of the lighting device 3.

  The external power source 5 is an AC power source such as a commercial power source, and supplies AC power to the lighting device 3.

  The lighting load 2 is composed of a plurality of types of LEDs 21, 22 and 23 having different light colors. Specifically, the lighting load 2 includes a first LED 21, a second LED 22, and a third LED 23. Each of the first LED 21, the second LED 22, and the third LED 23 is lit when DC power is supplied from the lighting device 3. The lighting load 2 can emit light of a plurality of colors by a combination of power supplied to each of the first LED 21, the second LED 22, and the third LED 23. That is, the lighting load 2 emits light in which the light of the first LED 21, the light of the second LED 22, and the light of the third LED 23 are mixed.

  The lighting device 3 includes a power supply unit 31 that supplies DC power to the lighting load 2, a dimming input unit 32 that receives a dimming signal from the dimmer 4, and a supply power supplied from the power supply unit 31 to the lighting load 2. And a microcomputer 33 for setting a power value. In addition, the lighting device 3 includes a detection circuit 35 that detects an energization state at both ends of a switch 34 inserted between the external power supply 5 and the power supply unit 31.

  The power supply unit 31 includes a rectifier 311, a DC / DC converter 312, a capacitor 313, and a plurality (three in the illustrated example) of DC / DC converters 314, 315, and 316, and supplies DC power to the lighting load 2. Supply.

  The rectifier 311 is a diode bridge, for example, and converts the input voltage V1 that is an AC voltage from the external power supply 5 into a voltage including a pulsating current. The DC / DC converter 312 converts electric power including pulsating current into direct-current power. The plurality of DC / DC converters 314, 315, and 316 are a first DC / DC converter 314 that supplies DC power to the first LED 21 and a second DC / DC converter that supplies DC power to the second LED 22. 315 and a third DC / DC converter 316 that supplies DC power to the third LED 23. A current I1 flows from the capacitor 313 to the plurality of DC / DC converters 314, 315, and 316. Each DC / DC converter 314, 315, 316 receives the voltage V2 of the capacitor 313 in accordance with the PWM signal from the microcomputer 33, and turns on / off the LEDs 21, 22, 23. An output current I 21 flows from the first DC / DC converter 314 to the first LED 21, an output current I 22 flows from the second DC / DC converter 315 to the second LED 22, and a third DC / DC converter 316. To the third LED 23, the output current I23 flows.

  The dimming input unit 32 receives a dimming signal (lighting control signal) 61 from the dimmer 4 and converts the dimming signal 61 into a signal suitable for input to the microcomputer 33. The dimmer 4 is a device for continuously dimming the lighting load 2 by a user's operation on a knob (not shown), and outputs a dimming signal 61 according to the operation. The dimming signal 61 is, for example, PWM (Pulse Width Modulation). The dimming signal 61 is not limited to a PWM signal, and may be an asynchronous serial communication signal, for example.

  The switch 34 is a wall switch, for example, and is provided between the external power supply 5 and the power supply unit 31. The switch 34 is an energization cutoff unit capable of interrupting energization between the external power supply 5 and the power supply unit 31.

  The detection circuit 35 detects an AC voltage applied from the external power supply 5 to the power supply unit 31, and sends a power supply detection signal 62 indicating an energization state between the external power supply 5 and the power supply unit 31 to the microcomputer 33.

  The microcomputer 33 realizes functions of a storage unit 331, a signal detection unit 332, a lighting control unit 333, and a cutoff detection unit 334, which will be described later.

  The storage unit 331 stores in advance load output characteristics indicating the color temperature and light flux of the lighting load 2 with respect to the dimming signal 61. As shown in FIG. 2, the load output characteristic of the present embodiment is such a characteristic that the higher the A / D voltage of the dimming signal 61, the deeper the dimming and the lower the color temperature. That is, the load output characteristic shown in FIG. 2 is a characteristic in which the color temperature and the light flux continuously change according to the voltage level of the dimming signal 61. In this load output characteristic, when the dimmer 4 is not connected, the dimming signal is 0 V, and the color temperature and the luminous flux (light output) of the lighting load 2 are in a maximum state. When the voltage level of the dimming signal 61 is 1 V or less, only the color temperature changes and the luminous flux is constant. However, the individual LEDs 21, 22, and 23 have power supplied according to the voltage level of the dimming signal 61. Since it is continuously changing, dimming is performed continuously.

  The lighting control unit 333 acquires the dimming signal 61 from the dimming input unit 32, and selects a load output corresponding to the dimming signal 61 from the load output characteristics. The lighting control unit 333 that has selected the load output sets the power supplied from the power supply unit 31 to the lighting load 2 to a power value for realizing the selected load output. Specifically, the lighting control unit 333 performs A / D conversion on the dimming signal 61 from the dimming input unit 32, and the first PWM so that the color temperature and the luminous flux corresponding to the dimming signal 61 are obtained. The period and duty of each of the signal 63, the second PWM signal 64, and the third PWM signal 65 are determined. The lighting control unit 333 outputs the first PWM signal 63 to the first DC / DC converter 314, outputs the second PWM signal 64 to the second DC / DC converter 315, and outputs the third PWM signal 65. Is output to the third DC / DC converter 316.

  The dimming signal 61 has a frequency of 1 kHz and a duty of 5% to 95%. This duty range is limited by the switching characteristics of a general-purpose photocoupler used in an interface circuit that receives the dimming signal 61. That is, in a general-purpose photocoupler, there is a pulse signal transmission delay of about several tens of microseconds, so that the pulse width that can be transmitted is limited to about 50 microseconds. Therefore, if the dimming signal 61 has a frequency of 100 Hz, the duty can be set from 0.5% to 99.5%.

  The dimming signal 61 is about 0.25 V with a duty of 5%. Even in this state, if the flat characteristic is set so as to be in the first lighting state (first rating), the setting without the dimming signal 61 and the setting at the rated dimming match. The first lighting state is, for example, a neutral white state, and has a color temperature of 5000K and a luminous flux of 300 ml. Further, when the voltage value of the dimming signal 61 is increased, the luminous flux of the lighting load 2 and the color temperature are decreased simultaneously.

  The signal detection unit 332 detects the presence or absence of the dimming signal 61 from the voltage level of the dimming signal 61 from the dimming input unit 32.

  When the dimming signal 61 is 0 V, the signal detector 332 can detect that the dimmer 4 is not connected to the lighting device 3 and the dimming signal 61 is not input. However, in practice, an error of several tens of mV may occur due to noise or the like, so the threshold value is preferably set to a voltage value that is half the minimum duty (near 0.125 V). Further, the presence / absence of the dimming signal 61 can be accurately determined by using an average value of input values in several hundred milliseconds (for example, 200 milliseconds) before lighting.

  The interruption detection unit 334 monitors the power supply detection signal 62 from the detection circuit 35 to detect instantaneous off (that is, on-off-on) of the switch 34 other than the power failure of the external power supply 5. It is determined that the off time is within a certain time. The off time that the block detection unit 334 detects as a temporary block is 0.2 seconds or more and less than 2 seconds. More preferably, the off time is not less than 0.2 seconds and not more than 1.5 seconds.

  The lighting control unit 333 turns off the lighting load 2 or changes the operation mode (lighting state) of the lighting load 2 in accordance with the power supply detection signal 62 from the detection circuit 35. When the signal detection unit 332 detects that the dimming signal 61 is not input, if the interruption detection unit 334 detects a temporary interruption, the lighting control unit 333 changes the rated lighting state. That is, the lighting control unit 333 changes the power supplied from the power supply unit 31 to the lighting load 2 to a specified value. The specified value is a power value for realizing a predetermined lighting state among the load output characteristics. Since 0.2 seconds is longer than a general instantaneous power failure time, an unintended operation mode change can be prevented. On the other hand, if the power failure time is 1.5 seconds or longer, an explicit reset operation can be performed by resetting to the power-on state.

  By the way, even when the dimmer 4 is connected, the dimming signal 61 disappears depending on the characteristics of the dimmer 4 when the power is cut off for 1 second or longer. As a result, the signal detection unit 332 of the microcomputer 33 determines that there is no dimming signal 61 during a power failure, and the lighting operation is changed when the power is turned on again. For this reason, when detecting a power failure, the signal detection unit 332 maintains the determination result of the presence or absence of the dimming signal 61 as it is before the power failure. That is, the signal detection unit 332 maintains the detection level of the dimming signal before and after the temporary interruption. In order to deal with the dimmer 4 that does not output the dimming signal 61 immediately after the power failure recovery, the signal detection unit 332 may determine the presence or absence of the dimming signal 61 after a certain time immediately after the power supply is restored.

  From the above, in the microcomputer 33, when the interruption detection unit 334 detects the temporary interruption, the lighting control unit 333 changes the supply power so that the light of the lighting load 2 becomes a predetermined light color. Can do.

  The power supplied to the microcomputer 33 is designed to be maintained for about 3 seconds after the external power source 5 is shut off, and the internal data can be stored in the nonvolatile memory immediately after the external power source 5 is shut off.

  Next, operation | movement of the illuminating device 1 which concerns on this embodiment is demonstrated using FIG. First, when the dimming signal 61 is not input, the lighting load 2 is lit in the first lighting state (first rating). At time t1, an interruption occurs between the external power supply 5 and the power supply unit 31 by the switch 34, and the power supply detection signal 62 is turned off. At this time, the microcomputer 33 detects power-off and turns off the LEDs 21, 22, and 23.

  Thereafter, when the switch 34 is turned on at time t2 and the external power source 5 is turned on again, the power source detection signal 62 becomes an on signal. At this time, the microcomputer 33 detects power restoration. Furthermore, if the microcomputer 33 detects the power failure time at this time and determines that the power failure time is 0.2 or more and 1.5 seconds or less, the microcomputer 33 changes the rated lighting mode to the second rating.

  Next, an example of the state change of this embodiment will be described with reference to FIG. First, the external power supply 5 is turned on from a long-term off state to turn on the power source. If the microcomputer 33 determines that there is no dimming signal, that is, a signal level without the dimmer 4, the lighting load 2 is turned on in the first lighting state (first rating). In this state, when an instantaneous OFF by the switch 34 is detected, the lighting load 2 is turned on in the second lighting state (second rating). In this way, the first lighting state and the second lighting state are switched by operating the switch 34. On the other hand, when the dimming signal 61 is present, the normal mode is set, and the lighting state of the lighting load 2 is not changed by instantaneously turning off.

  From the above description, according to the present embodiment, the lighting control according to the dimming signal 61 and the lighting control according to the operation to the switch (energization cut-off unit) 34 can be performed. Can do.

  According to the present embodiment, the lighting state (rated lighting state) of the lighting load 2 can be switched by changing the power supplied to the lighting load 2 to a specified value by temporarily interrupting the switch 34. That is, since the initial rated lighting can be set to any point of the load output characteristic, for example, when performing the load output of the light bulb color main, the lighting device 3 to which the dimmer 4 is not connected is installed. However, it is possible to produce a space with no sense of incongruity.

  Further, according to the present embodiment, since the rated lighting state can be switched by temporarily shutting off the switch 34, the light of the lighting load 2 can be obtained even when the dimming signal (lighting control signal) is not input. Can be matched with the surrounding color.

  Furthermore, according to this embodiment, the light color (color temperature) as well as the brightness (light flux) of the lighting load 2 can be easily changed by the temporary interruption by the switch 34.

  The lighting device 3 of the present embodiment is lit by an operation to an operation unit (not shown) in a method of continuously dimming the lighting load 2 by an operation on a knob (not shown) of the dimmer 4. The present invention can also be applied to the case where the load 2 is dimmed stepwise. Thereby, it can respond to various illumination systems.

  The lighting device 3 can switch not only two lighting states but also three or more lighting states (three in the illustrated example) as shown in FIG. The third lighting state in FIG. 5 ((3) in FIG. 5) is a state in which the luminous flux is reduced to 25%. The state change in this case is as shown in FIG. Moreover, the lighting device 3 may switch the lighting state of the lighting load 2 by the state change shown in FIG. In other words, when the external power supply 5 is reset, the lighting device 3 does not light the lighting load 2 in the 0V state (first lighting state) of the dimming signal 61. A program for lighting the lighting load 2 may be executed. Thereby, when the lighting load 2 is combined with an incandescent light bulb, it is possible to realize lighting without a sense of incongruity. These operations may be changed by providing a setting switch (not shown) on the power supply board.

(Embodiment 2)
The lighting device 1 according to the second embodiment is different from the lighting device 1 according to the first embodiment in that the light flux of the lighting load 2 fades in at a constant color temperature as shown in FIG. In addition, about the component similar to the illuminating device 1 of Embodiment 1, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  In the lighting device 3, when the light flux of the lighting load 2 is not faded in, the output of the DC / DC converter 312 cannot follow the steep lighting immediately after the power is restored, and the output voltage of the DC / DC converter 312 is reduced. However, flicker may occur. For this reason, the lighting device 3 needs to gradually increase the power supplied to the lighting load 2.

  Therefore, in the microcomputer 33 of the present embodiment, the lighting control unit 333 gradually increases the supplied power while keeping the light color of the lighting load 2 constant when the energization is resumed after the temporary interruption by the switch 34 occurs. To a predetermined power value.

  As an example of the operation of the lighting device 1 according to the present embodiment, as illustrated in FIG. 6, after being shut off at time t1, the lighting control unit 333 causes the LEDs 21, 22, and 23 from the power recovery timing at time t2 to time t3. Output currents I21, I22, and I23 (power supplied to the LEDs 21, 22, and 23) are gradually increased. As a result, the luminous flux of the lighting load 2 gradually increases from time t2 to time t3.

  From the above description, according to the present embodiment, the DC / DC converter 312 of the power supply unit 31 can sufficiently follow the load fluctuation between the times t2 and t3. Can be prevented.

  Further, according to the present embodiment, when the power supplied to the lighting load 2 is gradually increased, the light color of the lighting load 2 is made constant so that the luminous flux can be increased without a sense of incongruity.

  Note that the microcomputer 33 according to the present embodiment is not limited to linearly changing the output currents I1, I2, and I3 as shown in FIG. 6, and if the color temperature is substantially constant, other than that shown in FIG. The output currents I1, I2, and I3 may be changed depending on the characteristics.

(Embodiment 3)
The lighting device 1 according to the third embodiment is different from the lighting device 1 according to the first embodiment in that the toning characteristics (color temperature characteristics) are changed by temporary shutoff by the switch 34 (on / off of the external power supply 5). In addition, about the component similar to the illuminating device 1 of Embodiment 1, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  FIG. 7 shows load output characteristics of a light flux and two kinds of color temperatures with respect to the dimming signal 61. The first toning characteristics ((a1) in FIG. 7) are characteristics close to white, and the second toning characteristics ((a2) in FIG. 7) are colors regardless of the voltage level of the dimming signal 61. This is a characteristic in which the temperature is constant at the color temperature of the incandescent bulb.

  Even when the dimming signal 61 is always given, the microcomputer 33 according to the present embodiment changes the toning characteristics by temporarily blocking the switch 34. For example, when the first toning characteristic is set as the initial toning characteristic, the microcomputer 33 changes to the second toning characteristic when the temporary interruption by the switch 34 is detected.

  As described above, according to the present embodiment, the toning characteristics corresponding to the scene can be selected.

  If there is a deviation in the selection of the toning characteristics due to the temporary shut-off by the switch 34, an area to be extinguished by the dimming signal 61 may be provided, and in that state, temporary shut-off may be performed for synchronization.

(Embodiment 4)
The lighting device 1 according to the fourth embodiment is related to the first embodiment in that the lighting device 3 is connected to the phase dimmer (thyristor dimmer) 36 and the second switch 37 as shown in FIG. Different from the lighting device 1. In addition, about the component similar to the illuminating device 1 of Embodiment 1, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  The second switch 37 is provided to bypass input / output of the phase dimmer 36.

  The phase dimmer 36 includes a bidirectional thyristor 361 and is connected in series with the switch 34 between the external power supply 5 and the power supply unit 31. When the second switch 37 is conducted to the phase dimmer 36 side, the phase dimmer 36 supplies power to the power supply unit 31 at a predetermined conduction phase angle in synchronization with the external power supply 5.

  The detection circuit 35 of the present embodiment compares the input voltage V1 applied to the power supply unit 31 with the determination value σ1, and outputs a pulse signal (lighting control signal) 66 corresponding to the comparison result to the microcomputer 33. For example, when phase dimming and the conduction phase angle is 90 °, the detection circuit 35 sets a high level period D2 of the pulse signal 66 with a period (1/2) T1 as shown in FIG.

  In the microcomputer 33 of the present embodiment, when the signal detection unit 332 receives the pulse signal 66 from the detection circuit 35, the signal detection unit 332 detects the dimming level from the pulse signal 66. The lighting control unit 333 sets the power supplied to the lighting load 2 according to the dimming level of the pulse signal 66 detected by the signal detection unit 332. That is, the lighting control unit 333 sets the supplied power so as to be a load output of the lighting load 2 according to the conduction phase angle.

  FIG. 10 shows a load output characteristic indicating a load output (light flux / color temperature) with respect to the conduction phase angle of the pulse signal 66. 10A shows the color temperature, and FIG. 10B shows the luminous flux. When the conduction phase angle is 30 ° or less, the lighting load 2 is turned off. At the conduction phase angle of 30 ° to 150 °, the lighting load 2 changes in luminous flux and color temperature. When the conduction phase angle is 150 ° to 180 °, the lighting load 2 has a constant luminous flux (100% lighting) and a color temperature.

  When there is no signal of the phase dimmer 36 (for example, when the second switch 37 short-circuits the input / output of the phase dimmer 36), the switch 34 is constant in the ON state (conduction phase angle 180 °). The lighting load 2 is in the first lighting state ((1) in FIG. 10). At this time, when the switch 34 is opened and closed, the detection circuit 35 detects the disappearance and restart of the pulse signal 66 to detect a power failure and a power recovery. As a result, the lighting load 2 is changed to the second lighting state ((2) in FIG. 10). On the other hand, when the signal of the phase dimmer 36 is detected, the lighting state (the dimming level and the toning level) of the lighting load 2 is changed according to this signal.

  As described above, according to the present embodiment, even when there is no signal from the phase dimmer 36, the lighting state of the lighting load 2 can be selected according to the operation of the switch (energization cut-off unit) 34. it can.

  When the switch 34 is on and the phase dimmer 36 is operating, the second switch 37 is temporarily opened and closed (the input and output of the phase dimmer 36 are temporarily short-circuited) to generate a pulse signal. The dimming function (for example, dimming / toning characteristic data) may be switched by instantaneously changing 66 to a conduction phase angle of 180 °. Thereby, the operation of the lighting load 2 can be changed without turning off the lighting load 2.

  In addition, the operation of the lighting device 3 may be changed by opening and closing the switch 34 in a state where the phase dimmer 36 outputs a signal without using the second switch 37.

DESCRIPTION OF SYMBOLS 1 Illuminating device 2 Lighting load 3 Lighting device 31 Electric power supply part 33 Microcomputer 332 Signal detection part 333 Lighting control part 334 Interruption detection part 34 Switch (energization interruption part)
61 Dimming signal (lighting control signal)
66 Pulse signal (lighting control signal)

Claims (9)

A power supply unit for supplying power to the lighting load;
A lighting control unit that continuously changes the power value of the power supplied from the power supply unit to the lighting load in accordance with a lighting control signal indicating the lighting control content;
An interruption detection unit that detects temporary interruption of a predetermined time or less by an energization interruption unit capable of interrupting energization between an external power supply and the power supply unit;
The lighting device is characterized in that, when the interruption detection unit detects the temporary interruption, the lighting control unit changes the supplied power to a predetermined specified value. A signal detector that detects the presence or absence of the lighting control signal from the voltage level of the lighting control signal;
The lighting control unit changes the supplied power to the specified value according to a detection result of the shut-off detection unit when the signal detection unit detects that the lighting control signal is not input. The lighting device according to claim 1. The lighting load is a light source that emits light of a plurality of colors,
The lighting control unit sets the supply power so as to change the light color of the lighting load according to the lighting control signal, while the lighting detection unit detects the temporary interruption when the interruption detection unit detects the temporary interruption. The lighting device according to claim 1, wherein the supplied power is changed so that a load has a predetermined light color. The lighting control signal is a conduction phase angle of phase dimming,
4. The lighting according to claim 1, wherein the lighting control unit sets the supply power so as to continuously dim the lighting load according to the conduction phase angle. apparatus.   5. The lighting control unit according to claim 1, wherein, when energization is resumed after the temporary interruption, the supplied power is gradually increased to a predetermined power value. 6. The lighting device according to item. The lighting load is a light source that emits light of a plurality of colors,
When the energization is resumed after the temporary interruption, the lighting control unit gradually increases the supplied power and shifts to the predetermined power value while keeping the light color of the lighting load constant. The lighting device according to claim 5.   The lighting device according to any one of claims 1 to 6, wherein the predetermined time for which the interruption detection unit detects the temporary interruption is 0.2 seconds or more and less than 2 seconds.   The lighting device according to claim 2, wherein the signal detection unit maintains a detection result detected before the temporary interruption even during the temporary interruption. The lighting device according to any one of claims 1 to 8,
A lighting device comprising: a lighting load that lights up when power is supplied from the lighting device.

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