JP2013131310A - Light source lighting device and lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light source lighting device that initially lights an LED quickly with necessary lightness according to whether a person is present, and reduces unnaturalness in dimming control.SOLUTION: A selector circuit 81 selects an initial lighting part 851 to light the LED with approximately 50% output when a human sensor 6 detects a person in an initial lighting period T as a predetermined period from right after the start of supply of AC electric power, or selects a fade-in part 852 to perform LED fade-in lighting when the human sensor 6 detects no person. Further, the selector circuit 81 selects a dimming command part 861 when there is input of a dimming signal after the initial lighting period T passes to light the LED with output corresponding to the dimming signal, or selects a full lighting part 862 when there is not the input of the dimming signal to light the LED with full light output.

Description

  The present invention relates to a light source lighting device for lighting a light source such as a light emitting diode (hereinafter referred to as LED), and a lighting fixture using the same.

  As a device for lighting an LED, a device that supplies a direct current generated from an AC power source to an LED of a load using a DC power source device is generally known, and further dimming by controlling the power (current) of the LED. (For example, refer to Patent Document 1). There is description of FIG. 3 from [0019] to [0025] of Patent Document 1. When the dimming operation unit 34 and the lighting fixture are turned on in the apparatus configured as described above, the reference signal Vref of FIG. 4D becomes a control signal until a predetermined time T, and the Vcont of FIG. Is entered as At this time, if the LED is set to have the minimum light amount as Vref, the LED can be turned on or off with the minimum light amount until the predetermined period T elapses. If the dimming signal is not input as a lighting fixture, it will be in the all-light state when the power is turned on, and it will light up in the all-light state for a moment, and then the dimming command value will be dimmed. Although naturalness may occur, Patent Document 1 is intended to eliminate this unnaturalness.

Japanese Unexamined Patent Publication No. 2009-232625 (see FIGS. 3 and 4)

  However, when the “predetermined time T” for the reliable operation is long in the conventional device (Patent Document 1), the user is told that “it is not easy to become bright although it is an LED, or it takes time to emit light”. There was a problem that could be thought.

  An object of the light source lighting device of the present invention is to provide a device capable of quickly lighting an LED with a required brightness according to the presence or absence of a person, for example, and to reduce unnaturalness in light control. And

The light source lighting device of the present invention is
A DC power source that inputs AC power from an AC power source, generates DC power corresponding to a dimming signal output from the dimmer from the AC power, outputs the generated DC power to a light source, and turns on the light source And
The initial lighting period, which is a predetermined period immediately after the start of the supply of AC power, is the magnitude of the DC power that the DC power supply unit outputs to the light source according to the detection result of a sensor that detects a predetermined detection target. A first output control is performed on the DC power supply unit, and after the initial lighting period, the magnitude of the DC power that the DC power supply unit outputs to the light source is determined according to the presence or absence of the dimming signal. And a control unit that executes second output control to be controlled on the DC power supply unit.

  According to the light source lighting device of the present invention, for example, the LED can be initially turned on with appropriate brightness according to the detection result of the sensor, and therefore, it is possible to provide a light source lighting device that can reduce unnaturalness at the time of initial lighting.

FIG. 3 is a circuit configuration diagram of the LED lighting device 100 according to the first embodiment. FIG. 3 is a circuit configuration diagram of an output signal unit 8 according to the first embodiment. FIG. 4 is a diagram for explaining the operation of the LED lighting device 100 according to the first embodiment. FIG. 4 is a diagram for explaining the operation of the LED lighting device 100 according to the first embodiment. FIG. 4 is a diagram for explaining the operation of the LED lighting device 100 according to the first embodiment. FIG. 4 is a diagram for explaining the operation of the LED lighting device 100 according to the first embodiment. FIG. 3 is a diagram illustrating the type of operation of the LED lighting device 100 according to the first embodiment. 8 is a flowchart showing the operation of FIG. The circuit block diagram of the LED lighting device 200 of Embodiment 2. FIG.

Embodiment 1 FIG.
FIG. 1 shows a circuit configuration of the LED lighting device 100 according to the first embodiment. The LED lighting device 100 includes a power supply unit 2 (DC power supply unit) and a control circuit 3 (control unit). The power supply unit 2 is turned on by passing a direct current through the LED 4. The LED 4 is usually an LED module in which a plurality of LEDs are connected in series or in parallel. The power supply unit 2 and the control circuit 3 are elements that constitute a DC power source such as a buck converter or a flyback converter. Since various techniques have been disclosed in various literatures and the like, a dimming technique using a DC power source such as a buck converter or a flyback converter as a lighting device for supplying DC power to an LED or controlling its output current is disclosed. Detailed description is omitted here.

The power supply unit 2 inputs AC power from the AC power source 1, generates DC power corresponding to the dimming signal output from the dimmer 5 from the AC power, and outputs the generated DC power to the LED 4 that is a light source. Then, the LED 4 is turned on. The control circuit 3 includes an external signal input unit 7 and an output signal unit 8. This output signal unit 8 is a characteristic component of the LED lighting device 100.
(1) The external signal input unit 7 is an interface for inputting these signals to the control circuit 3 from the light control device 5 that outputs the light control signal and the sensor 6 that outputs the detection signal. In the following description, the sensor 6 is described as an example of a human sensor that detects the presence of a person, but this is an example. The sensor 6 may be a sensor that detects a predetermined detection target. The type of sensor may be determined according to the purpose of use of the LED lighting device 100. For example, a brightness sensor that detects brightness may be used.
(2) The output signal unit 8 generates a signal for the power supply unit 2 to supply given power or current to the LED 4.

(Configuration of output signal unit 8)
FIG. 2 shows an example of the configuration of the output signal unit 8. The output signal unit 8 includes a selector circuit 81 that inputs a signal from the external signal input unit 7, a first lighting control unit 85, a second lighting control unit 86, and a power supply signal unit 87. The first lighting control unit 85 includes an initial lighting unit 851 and a fade-in unit 852. The second lighting control unit 86 includes a dimming command unit 861 and an all-light lighting unit 862.
The selector circuit 81 selects one of the initial lighting part 851 and the fade-in part 852 during an “initial lighting period T (time t0 to t1)” to be described later, and during the dimming lighting period (after time t1). One of the dimming command unit 861 and the all-light lighting unit 862 is selected.

(1) The output setting of the LED at the time t1 (at the end of the initial lighting period T) shown in FIGS. This output setting is performed at the time of manufacture in a factory, for example. When the selector circuit 81 selects the initial lighting unit 851, the initial lighting unit 851 outputs a signal for controlling the power supply unit 2 to an output of about 50% for all light lighting (100% output) to the power supply signal unit 87. . Explanations of time symbols described in FIGS. 3 to 6 and terms used in the following are defined.
<Time t0>: Time when the AC power supply 1 is turned on. The output signal unit 8 can know the time t0 when the AC power source 1 (AC power) is turned on by the conventional AC power source detection means.
Further, the output signal unit 8 has a clock function for measuring an elapse of an initial lighting period T described later from the time t0.
<Time t1>: Time after the elapse of a predetermined period T (initial lighting period T described later) from time t0. This initial lighting period T is set in the output signal unit 8 in advance.
<Initial lighting period T>: From time t0 to time t1 is referred to as “initial lighting period T”. The LED lighting device 100 is characterized in that the lighting state of the LED 4 in the initial lighting period T is controlled based on the detection signal of the sensor 6. That is, although details will be described later, the selector circuit 81 of the control circuit 3 detects a person (an example of a predetermined detection target) during the initial lighting period T that is a predetermined period immediately after the start of supply of AC power. Depending on the detection result of the sensor 6, the power supply unit 2 controls the magnitude of the DC power output to the LED 4 (first output control).
<Dimming lighting period>: The period after time t1 is referred to as a “dimming lighting period”. This is because it is assumed that the LED is dimmed and controlled after time t1. As will be described later, the dimming signal may not be input during the dimming lighting period. That is, the selector circuit 81 of the control circuit 3 controls the magnitude of the DC power that the power supply unit 2 outputs to the LED 4 according to the presence or absence of the dimming signal after the initial lighting period T has elapsed (second output control). .
(2) When the selector circuit 81 selects the fade-in unit 852, the fade-in unit 852 outputs a control signal for gradually increasing the output of the LED toward the output (initial lighting value) at the time t1 set by the initial lighting unit 851. Output to the supply signal unit 87.
(3) When the selector circuit 81 selects the dimming command unit 861, based on the dimming degree signal from the dimming device 5, the dimming command unit 861 sends a control signal for lighting the LED with the dimming degree signal after time t1. Output to the power supply signal unit 87.
(4) When the selector circuit 81 selects the all-light lighting unit 862, the all-light lighting unit 862 outputs a control signal for lighting all LEDs to the power supply signal unit 87.
(5) The power supply signal unit 87 outputs the control signal output from the initial lighting unit 851 or the like to the power supply unit 2.

  In the LED lighting device 100 of FIG. 1 configured as described above, a steady state after time t1 after the AC power supply 1 is first turned on (time t0; FIG. 3 etc.) will be described.

  The DC power obtained by rectifying the AC power source 1 (the rectifying unit is not shown) is lit by the operation of the switching element (not shown) of the power supply unit 2 that is a DC power source such as a buck converter, which is a well-known operation. To do. The power supply unit 2 controls the switching operation in accordance with the dimming signal from the dimming device 5 and performs dimming by changing and controlling the current value supplied to the LED. The operation is as follows. The external signal input unit 7 inputs the dimming signal from the dimming device 5 and outputs it to the output signal unit 8. When the dimming signal is input, the selector circuit 81 of the output signal unit 8 selects the dimming command unit 861 and outputs the dimming signal to the dimming command unit 861. The dimming command unit 861 outputs a control signal for lighting the LED to the power supply signal unit 87 by the dimming degree signal, and the power supply signal unit 87 outputs the control signal to the power supply unit 2.

The control of the initial lighting period T and the dimming lighting period will be described with reference to FIGS. FIG. 7 shows types 1 to 4 of control.
FIG. 8 is a flowchart showing the operation of the output signal unit 8. The following types 1 to 4 will be described with reference to this flowchart. FIG. 7 is a table of four combinations that can be made from “present” and “absent” in S101 and S103 of FIG. That is, the control circuit 3 determines the control of the initial lighting period T based on the presence / absence of the sensor signal of S101, and determines the control of the light control lighting period based on the presence / absence of the light control signal of S103. FIG. 7 is a table showing this. As shown in the table, the presence / absence of sensor input matches the presence / absence of fade-in control. ) And 4 combinations (4 types). In the flowchart of FIG. 8, in the initial lighting period T, the selector circuit 81 selects one of the initial lighting part 851 and the fade-in part 852 depending on the presence / absence of a sensor signal (presence / absence of human detection). The selector circuit 81 selects one of the dimming command unit 861 and the all-light lighting unit 862 depending on the presence / absence of a dimming signal.

<Type 1>
Next, the operation will be described from turning on the AC power supply 1 (time t0). Here, in the combination of FIG. 7, the uppermost type 1 will be described. Type 1 corresponds to FIG. “Type 1” in FIG. 3 corresponds to “Yes” in S101 and “Yes” in S103. This state is when the sensor 6 is a human sensor and the presence of a person is detected. The light control device 5 generates a signal so as to be lit at a light control degree of 70%, for example.
In FIG.
(A) shows that the AC power supply 1 was turned on at time t0.
(B) shows the magnitude | size of the output of LED notionally.
The horizontal axis in FIG. 3 represents the time axis.

(Initial lighting period T)
When the AC power supply is turned on at time t0, the power supply unit 2 in FIG. 2 starts operating and turns on the LED 4. At this time, the selector circuit 81 of the output signal unit 8 selects the initial lighting unit 851 because there is a detection signal from the sensor 6 (S101, S102), and the initial lighting unit 851 causes the power supply unit 2 to operate until time t1. As shown in FIG. 3, the LED is turned on with an output of about 50%.

  Note that turning on the LED with an output of about 50% when the sensor 6 is detecting a person is an example of output control for the magnitude of DC power set in advance corresponding to the sensor 6. Of course, a different output control may be set. The sensor 6 is an example of a human sensor, and the detection target is not limited to a person, and may be a predetermined detection target. That is, when the sensor 6 detects the detection target until the initial lighting period T elapses, the selector circuit 81 has the magnitude of the DC power set in advance corresponding to the sensor 6 as output control. The power supply unit 2 may be configured to execute output control (providing a functional unit such as the initial lighting unit 851).

(Light control lighting period)
When the time t1 is reached, the selector circuit 81 selects the dimming command unit 861 because the dimming signal having a dimming degree of 70% is transmitted from the dimming device 5 (S103, S104). The dimming command unit 861 supplies a control signal for increasing the output of the power supply unit 2 to light the LED 4 at 70% according to the command value in the output of the dimming device 5 via the power supply signal unit 87. Output to the supply unit 2. Thereafter, the dimming command unit 861 maintains this state until the dimming signal of the dimming device 5 changes (S105). In FIG. 3, the lighting state from time t0 to time t1 is an output of about 50%, and since there is no extreme difference from the lighting output after time t1 (70% dimming), the user (sensor 6 has already been detected) ) Is less likely to give a sense of incongruity due to sudden changes in light output This is the same effect even when the signal of the light control device 5 is lower than the 50% output that is set until time t1, for example, 25%.

(Constant output value of initial lighting period T)
Furthermore, since the state where the human sensor 6 senses and generates a signal means the presence of a person, it is comfortable to turn on the LED 4 as quickly as possible and to obtain the necessary brightness in consideration of visibility. It can be said that it contributes to the lighting environment. In the above example, the initial lighting unit 851 has an output of about 50% in the vicinity of the time t1, but about 40% to 60% is appropriate as an output range where there is no sense of incongruity in visibility. That is, when the initial lighting unit 851 is operated, about 40% to 60% is appropriate near the time t1, and the above example 50% is an example. That is, when the sensor 6 detects the presence of a person until the initial lighting period T elapses, the selector circuit 81 selects the initial lighting unit 851 to control light control indicated by the light control signal as output control. The DC power corresponding to the lower limit dimming rate (for example, 5%) on the lower side of the light output in the possible range is larger than the DC power corresponding to the total light output (100% output) of the LED 40. Output control for causing the power supply unit 2 to output substantially constant DC power between 50% and 60% (for example, 50% output) is executed.

  Further, if the output in the initial lighting state (50% in the above example) until this time t1 is set extremely low, the load power is very small when viewed from the AC power supply side. This may impair the stable operation of the DC power supply. In particular, when the DC power source (power supply unit 2) uses a DC voltage generator (power factor correction circuit) that rectifies and boosts the output of the AC power source 1, for example, if the lighting is maintained with the minimum light amount, the power factor correction circuit The output power of the power source operates with very little power compared to the rated load. Therefore, inconveniences such as output control becoming unstable and the load LED flickering may occur. On the other hand, as in the LED lighting device according to the first embodiment, at least in the vicinity of time t1, the output is raised to a larger output (40% to 60% of the total light) than the lower limit side of the dimmable range. Such instability can be prevented.

<Type 2>
Next, the operation of type 2 in FIG. 7 will be described. The type 2 operation is shown in FIG. “Type 2” is “Yes” in S101 and “No” in S103. In FIG. 4, as described in the second row of the table, the sensor 6 senses a human body (with a signal), and there is no signal from the dimmer 5 or no dimmer 5 is connected. 4 to 6, the vertical axis and the horizontal axis have the same meanings as described in FIG.

(Initial lighting time T)
The initial lighting period T is the same control as type 1. Also in this case, when the AC power source 1 is turned on at time t0, the DC power source (power supply unit 2) starts operating and the LED 4 is turned on. At this time, the selector circuit 81 of the output signal unit 8 first selects the signal of the initial lighting unit 851 and operates the power supply unit 2 (S101, S102). Since there is a signal from the sensor 6, the fade-in portion 852 is not selected, and the LED 4 is turned on with an output of approximately 50% (50% as an example of the above 40% to 60%) until time t1 in FIG. To do. That is, until time t1, the initial lighting unit 851 controls the power supply unit 2 to light the LED with an output of about 50%.

(Light control lighting period)
When the time t1 is reached, since there is no signal from the light control device 5, the light is turned on in the all-light state. That is, the selector circuit 81 selects the all-light lighting unit 862 at time t1 (S103, S107), and the all-light lighting unit 862 transmits all light to the power supply unit 2 via the power supply signal unit 87. Control the state. In this LED lighting device 100, all light is lit when there is no dimming signal, but this is an example, and the output when there is no dimming signal may be set freely.

<Type 3>
Next, the operation of type 3 in FIG. 7 will be described. The type 2 operation is shown in FIG. “Type 1” is a case where “None” is determined in S101 and “Yes” is determined in S103. In FIG. 7, it is assumed that the sensor 6 is not sensing (no signal) and a dimming command signal of, for example, 30% comes from the dimming device 5 as described in the third row of the table.

(Initial lighting period T)
Also in this case, when the AC power source 1 is turned on at time t0, the power supply unit 2 starts operating and tries to light the LED 4. At this time, since there is no sensor signal, the selector circuit 81 of the output signal unit 8 selects and operates the fade-in unit 852 (S101, S106). Therefore, the output of the LED 4 gradually increases as shown in FIG. When the initial lighting value 101 in the fade-in mode is reached, time t1 is reached in that state.

(Light control lighting period)
When the time t1 is reached, the selector circuit 81 switches to the dimming command unit 861 (S103, S107), and the dimming command unit 861 keeps lighting at 30% output by the signal from the dimming device 5. Although the dimming rate is different, the control is the same as type 1. In Type 3, when the input from the sensor 6 is not input, the lighting atmosphere at the start of lighting of the LED 4 can be made gentle by fading in. Although the output decreases after time t1 from the initial lighting value 101, since the difference in the output is relatively small, an unnatural brightness change near the time of power-on can be avoided.

<Type 4>
Next, the operation of type 4 in FIG. 7 will be described. The type 2 operation is shown in FIG.
“Type 4” in FIG. 7 corresponds to the case of “none” in S101 and “none” in S103.
In FIG. 7, as described in the fourth row of the table, the sensor 6 is not sensing (no signal), and there is no dimming signal from the dimming device 5. Since the sensor signal is “none”, the operation during the initial lighting period T is the same as that of Type 3.

(Initial lighting period T)
That is, when the AC power source 1 is turned on at time t0, the power supply unit 2 starts operating and tries to light the LED 4. Since the selector circuit 81 of the output signal unit 8 has no sensor signal, the fade-in unit 852 is operated (S101, S106). Therefore, the output of the LED gradually increases as shown in FIG. When the initial lighting value (about 50%) is reached, time t1 is reached in that state.

(Light control lighting period)
When the time t1 is reached, the selector circuit 81 switches the fade-in unit 852 to the all-light lighting unit 862, and the all-light lighting unit 862 maintains the lighting at the all-light output because there is no signal from the dimmer 5 (S103, S107). Thus, the LED lighting device 100 according to the first embodiment does not cause any inconvenience even when used as a single device without being combined with a sensor (no human feeling) or a dimmer (no dimming signal).

  The LED lighting device 100 according to the first embodiment controls the light output of the light source in the initial lighting period T depending on the presence or absence of the sensor signal, and controls the light output of the light source based on the presence or absence of the dimming signal after the initial lighting period T has elapsed. Therefore, it is possible to provide a device that can reduce the unnatural brightness of the light source when the AC power is turned on even in the dimming control. In the LED lighting device 100 according to the first embodiment, the LED is set to an appropriate brightness immediately after starting lighting in response to a sensor signal such as a human sensor, and then shifted to the brightness of the command value. The unnatural brightness of the light source at the time of turning on can be reduced. When there is no sensor signal and a dimming signal is input, the light output of a predetermined value is obtained by fading in gradually from the start of lighting, so that a sense of discomfort with the subsequent output of the dimming command value can be reduced.

Embodiment 2. FIG.
Next, the LED lighting device 200 of Embodiment 2 is demonstrated.
FIG. 9 is a block diagram of the LED lighting device 200 according to the second embodiment. The LED lighting device 200 has a lighting time timer 9 added to the LED lighting device 100 of FIG. The basic operation of the LED lighting device 200 is also the same as in FIG.

(Lighting time timer 9)
In addition, the lighting time timer 9 accumulates the cumulative lighting time during which the LED lighting device 200 is operating with a built-in microcomputer or the like (not shown), and stores it in the nonvolatile memory. Based on this integration time, the output signal of the output signal unit 8 is changed (corrected) by a preset / built-in output adjustment value (correction value). For this reason, it is possible to correct a decrease in light output due to secular change in a lighting fixture using the LED lighting device 200 (dirt of the lighting fixture or reduction in the luminous flux of the LED). Therefore, the lighting fixture which can supply appropriate brightness during a use period is implement | achieved. For example, at the start of use, the total light state may be set to 85% of its ability (rated value), and the output current (power) may be brought closer to the rated value as the use time becomes longer. The microcomputer may be provided with a correspondence table of illuminance correction between the cumulative lighting time and the correction value such as 85%.

  As an example, if the initial lighting section 851 of FIG. 2 is set to an output of 40 to 60% of the total light, the output is 0.85 times at the start of use, so that the output is about 34 to 51% of the rating at that time. (40% × 0.85 = 34%). The output ratio such as 85% to the total light at the start of use of the LED lighting device 200 is determined by factors such as the maintenance rate of the lighting fixture and the deterioration of the LED at a high temperature. It is reasonable. In the above illuminance correction correspondence table, the start of use (0 hour) is set to about 80 to 90%, and increases toward 100% as the cumulative lighting time increases. As described in the first embodiment, the control circuit 3 (power supply signal unit 87) outputs a control signal to the power supply unit 2, but the control circuit 3 (power supply signal unit 87) outputs to the power supply unit 2. The form of the signal to be performed may be determined according to the circuit configuration of the power supply unit 2. As the power supply unit 2, a power supply unit 2 having a constant current output characteristic can be used so that a predetermined direct current can be supplied to the LED other than the buck converter and the flyback converter.

(Length of initial lighting period T)
The time from turning on the AC power supply 1 (time t0) to time t1 (initial lighting period T) is preferably about 1 to 2 seconds. In the above embodiment, even after the time t1 has elapsed, the LED output does not change so rapidly that there is a sense of incongruity, so a relatively long time of about 2 seconds is preferable. Further, it is preferable that the time required to reach the initial lighting state output (initial lighting value 101) when performing the fade-in operation is about 1.5 seconds or less.

  In general, the latter is earlier in the operation rise time of the DC power source (power supply unit 2) for lighting the LED 4 and the operation rise time of the sensor signal. However, when this is reversed (when the sensor signal can be sent), the sensor signal is input during the fade-in operation. In this case, the selector circuit 81 stops the fade-in operation as soon as the sensor signal is input, and raises the output to, for example, 50% (example of type 1) as shown in FIGS. That is, the selector circuit 81 switches from the fade-in unit 852 to the initial lighting unit 851.

(Sensor 6)
In the above embodiment, the case where a human sensor is used as the sensor 6 has been described, but a brightness sensor may be used. The control circuit 3 may be configured to control the power supply unit 2 in accordance with the degree of the detection value (detected brightness) of the brightness sensor. That is, the sensor 6 may be a space illuminated by a lighting fixture in which the LED lighting device is used or a person around the space, a human sensor for detecting brightness, a brightness sensor, or the like as a predetermined detection target.

In the above embodiment, the case where a human sensor is used as the sensor 6 has been described. However, the sensor may be used as described below. For example, a brightness sensor is used. A signal from the brightness sensor may be input to the light control device 5 to set the signal of the light control device 5.
Further, the external signal input unit 7 of the control circuit 3 may determine whether or not the sensor or the light control device is connected, for example, whether or not a connector (not shown) that is a mechanical connection is inserted. By making such a determination, the switching operation of the selector circuit 81 can be further ensured.

  As described above, in the LED lighting devices 100 and 200 according to the above-described embodiments, when a sensor signal is input, the LED can be quickly lit with a required brightness. In addition, when there is no sensor signal, a gentle visual environment can be provided by starting lighting with a fade-in operation. Furthermore, even when the LED lighting devices 100 and 200 are used without a sensor or a light control device, a gentle visual environment can be obtained at the start of lighting by a fade-in operation. Since the LED lighting device 200 includes the lighting time timer 9 as described above, a stable output can be obtained over a long period of time. In other words, the LED lighting device 200 can correct a decrease in light output due to secular change in a lighting fixture using the lighting device (dirt of the lighting fixture or a decrease in the luminous flux of the LED), which is appropriate during the use period. A lighting apparatus capable of supplying brightness can be realized.

  1 AC power source, 2 power supply unit, 3 control circuit, 4 LED, 5 dimmer, 6 sensor, 7 external signal input unit, 8 output signal unit, 9 lighting time timer, 80 selector circuit, 87 power supply signal unit, 100, 200 LED lighting device, 101 initial lighting value, 850 first lighting control unit, 851 initial lighting unit, 852 fade-in unit, 860 second lighting control unit, 861 dimming command unit, 862 all light lighting unit.

Claims (10)

A DC power source that inputs AC power from an AC power source, generates DC power corresponding to a dimming signal output from the dimmer from the AC power, outputs the generated DC power to a light source, and turns on the light source And
The initial lighting period, which is a predetermined period immediately after the start of the supply of AC power, is the magnitude of the DC power that the DC power supply unit outputs to the light source according to the detection result of a sensor that detects a predetermined detection target. A first output control is performed on the DC power supply unit, and after the initial lighting period, the magnitude of the DC power that the DC power supply unit outputs to the light source is determined according to the presence or absence of the dimming signal. A light source lighting device comprising: a control unit that executes second output control to be controlled on the DC power supply unit. The controller is
When the sensor detects the predetermined detection object until the initial lighting period elapses, as the first output control, output control of the magnitude of the DC power set in advance corresponding to the sensor The light source lighting device according to claim 1, wherein the direct current power supply unit is executed. The sensor is
The light source lighting device according to claim 1, wherein the predetermined detection target is a human sensor that detects a person or a brightness sensor that detects brightness. The sensor is
The human sensor,
When the human sensor detects the presence of a person until the initial lighting period elapses, the control unit detects the lower limit of the lower light output indicated by the dimming signal as the first output control. Output control for causing the DC power supply unit to output a substantially constant DC power that is larger than the DC power corresponding to the dimming rate and smaller than the DC power corresponding to the total light output of the light source is executed. The light source lighting device according to claim 3. The controller is
As the output control for outputting the substantially constant DC power in the first output control, the substantially constant DC power in the range of 40% to 60% of the DC power corresponding to the total light output of the light source is used. The light source lighting device according to claim 4, wherein the direct current power supply unit outputs the light. When the human sensor does not detect the presence of a person, the control unit performs a fade-in lighting in which the light output of the light source gradually increases toward a predetermined light output as the first output control. The light source lighting device according to claim 4, wherein the light source lighting device is executed. When the control unit detects that the dimming signal is output by the dimming device from the initial lighting period during which the first output control is performed, the control unit detects the detected dimming after the initial lighting period has elapsed. The light source lighting device according to any one of claims 1 to 6, wherein control for outputting the DC power corresponding to an optical signal to the light source is performed on the DC power supply unit as the second output control. When the control unit does not detect that the dimming signal is output from the dimming device, it outputs the DC power having a preset value to the light source after the initial lighting period has elapsed. The light source lighting device according to claim 1, wherein the control is performed on the DC power supply unit as the second output control. The light source lighting device further includes:
A cumulative lighting time measuring unit for measuring and storing the cumulative lighting time of the light source;
The controller is
When executing the first output control and the second output control of the DC power supply unit, the DC power supply unit outputs to the light source based on the cumulative lighting time stored in the cumulative lighting time measuring unit. The light source lighting device according to claim 1, wherein the magnitude of the DC power is corrected.   The lighting fixture provided with the light source lighting device in any one of Claims 1-9.

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