JP7067294B2 - Lighting equipment, lighting equipment - Google Patents

Description

The present invention relates to a lighting device and a luminaire including the lighting device.

Patent Document 1 discloses a lighting device capable of gradually changing the brightness of a luminaire by a so-called pullless operation. The pullless operation generally refers to an operation of switching the power switch on and off in a short time.

Japanese Unexamined Patent Publication No. 2005-285725

Controls such as step dimming can be changed by pullless operation. However, even if a lighting fixture having the same shape is used, the lighting start time of the plurality of lighting fixtures may differ due to a change in the specifications of the updated lighting fixture, such as when a part of the lighting fixtures installed is updated. For example, if lighting fixtures with early lighting disclosure time and lighting fixtures with late lighting disclosure time coexist on the same floor, the lighting time of multiple lighting fixtures may vary, causing discomfort or discomfort to the user. Was sometimes caused. Since the conventional lighting fixture does not have a function of adjusting the lighting start time, it may be necessary to replace the already installed lighting fixture in order to make the lighting start time of the lighting fixture uniform.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a lighting device and a lighting fixture capable of easily adjusting the lighting start time.

The lighting device according to the present invention includes a smoothing circuit to which an external power supply is supplied to charge a rectified voltage, a switch for switching whether or not the external power supply is supplied to the smoothing circuit, and an output of the smoothing circuit for lighting a light source. The lighting control unit includes a lighting circuit that converts the electric power into the lighting circuit and a lighting control unit that controls the lighting circuit, and the lighting control unit has a predetermined time change acceptance period after the external power supply is supplied to the smoothing circuit. When the switch is turned off, the mode shifts to the lighting start time mode, and the lighting start time of the light source is changed according to the pullless operation of the switch in the lighting start time mode.

Other features of the invention will be clarified below.

According to the present invention, the lighting start time of the luminaire can be easily adjusted by the pullless operation. As a result, even if the lighting fixtures having different lighting start times are mixed, the lighting start times of the lighting fixtures can be made uniform, so that the lighting fixtures can be turned on without causing discomfort or discomfort to the user.

It is a circuit diagram which shows the structural example of the lighting apparatus which concerns on embodiment. It is a flowchart which shows the process before the light source is turned on. It is a flowchart which shows the process in a step dimming mode. It is a flowchart which shows the process in a lighting start time mode. It is a time chart showing a step dimming reception period and a time change reception period. It is a time chart which shows the processing of a step dimming mode. It is a time chart which shows the processing of a lighting start time mode. It is a time chart which shows the setting range of a lighting start time.

The lighting device and the lighting fixture according to the embodiment of the present invention will be described with reference to the drawings. The same or corresponding components may be designated by the same reference numerals and the description may be omitted.

Embodiment.
FIG. 1 is a circuit diagram showing a configuration example of the lighting device 100 according to the embodiment. FIG. 1 shows a lighting fixture 200 including a lighting device 100 connected to an AC power supply AC which is an external power source, and a light source 150 which is supplied with electric power from the lighting device 100 to light up. A switch SW for turning on / off the electrical connection between the AC power supply AC and the lighting device 100 is provided.

The lighting device 100 includes a diode bridge DB, an AC power supply detection circuit 10, a smoothing circuit 20, a lighting circuit 30, and a control circuit 40. The diode bridge DB rectifies the input AC voltage. The AC power supply detection circuit 10 is connected to the diode bridge DB and detects that the AC power supply AC is supplied. The smoothing circuit 20 boosts and smoothes the output voltage of the diode bridge DB. The lighting circuit 30 converts the voltage of the smoothing circuit 20 into electric power matched to the light source 150.

The control circuit 40 includes an AC power supply detection unit 1, a drive control unit 2 for the smoothing circuit 20, a drive control unit 3 for the lighting circuit 30, and a lighting control unit 4. All or part of the control circuit 40 can be configured by a microcomputer and peripheral circuits of the microcomputer.

The AC power supply detection unit 1 detects whether or not the AC power supply AC is supplied from the output of the AC power supply detection circuit 10. The drive control unit 2 outputs a signal for controlling MOSFET Q1 which is a switching element of the smoothing circuit 20. The drive control unit 3 outputs a signal for controlling MOSFET Q2, which is a switching element of the lighting circuit 30. The lighting control unit 4 is connected to the AC power detection unit 1, the drive control unit 2, and the drive control unit 3 to control the lighting device 100. Further, the resistors R3 and R4 connected in series are connected in parallel to the electrolytic capacitor C1. The lighting control unit 4 performs constant voltage control based on the voltage obtained by dividing the voltage applied to the resistors R3 and R4, and performs constant current control by detecting the current applied to the current detection resistor R5. Therefore, it can be said that the lighting control unit 4 controls the lighting circuit 30.

The AC power supply detection circuit 10 has resistors R1 and R2 connected in series. The resistors R1 and R2 divide the output voltage of the diode bridge DB. This divided voltage is input to the AC power supply detection unit 1 as a detection signal for determining whether or not the AC power supply AC is supplied. The AC power supply detection unit 1 determines that the AC power supply AC is supplied when the A / D conversion value of the voltage output by the AC power supply detection circuit 10 is equal to or higher than the predetermined determination voltage value, and when it is less than the determination voltage value. Determines that the AC power supply AC is not supplied. In other words, the AC power supply detection unit 1 detects that the presence / absence of supply of the external power supply to the smoothing circuit 20 is switched by turning the switch SW on / off.

Next, the pullless operation will be described. When the switch SW is operated pulllessly, the presence or absence of the AC power supply AC is switched in a short period of time, and the output voltage of the AC power supply detection circuit 10 changes. The pullless operation can be detected by the AC power supply detection unit 1 based on the output voltage of the AC power supply detection circuit 10. The "pullless operation" of the present embodiment is an operation of the switch SW including a combination of an on period in which the AC power AC is supplied and an off period in which the AC power AC is cut off. Therefore, the AC power supply detection unit 1 functions as a pullless operation detection circuit that detects the pullless operation of the switch SW and transmits the detection result to the lighting control unit 4. This pullless operation detection circuit detects a pullless operation including a combination of an on period in which the external power supply is supplied to the smoothing circuit 20 and an off period in which the external power supply is cut off from the smoothing circuit 20. For example, the pullless operation of the present embodiment means that the switch SW is operated in the order of on, off, and on in a short period of, for example, 3 seconds.

The smoothing circuit 20 is a circuit to which an external power supply is supplied to charge the rectified voltage. The smoothing circuit 20 includes an inductor L1, a MOSFET Q1, a diode D1, a resistor R3, a resistor R4, and an electrolytic capacitor C1 in order to boost the voltage rectified by the diode bridge DB. One end of the inductor L1 is connected to the output on the high potential side of the diode bridge DB. The drain of the MOSFET Q1 and the anode of the diode D1 are connected to the other end of the inductor L1. The source of MOSFET Q1 is connected to the output on the low potential side of the diode bridge DB. The gate of MOSFET Q1 is connected to the output of drive control unit 2. The cathode of the diode D1 is connected to one end of the resistor R3 and the positive electrode of the electrolytic capacitor C1. The other end of the resistor R3 is connected to one end of R4 and the lighting control unit 4. The other end of R4 is connected to the output on the low potential side of the diode bridge DB.

On / off switching control of the MOSFET Q1 is performed by the signal output from the drive control unit 2. When the MOSFET Q1 is turned on, a current flows through the inductor L1 and energy is stored in the inductor L1. When the MOSFET Q1 is off, the energy stored in the inductor L1 is released from the diode D1 through the path of the electrolytic capacitor C1, and the voltage of the electrolytic capacitor C1 is boosted to a high voltage.

The lighting circuit 30 converts the output of the smoothing circuit 20 into electric power for lighting the light source. The lighting circuit 30 includes a MOSFET Q2, a diode D2, an inductor L2, a current detection resistor R5, and a capacitor C2. The drain of the MOSFET Q2 is connected to the output of the smoothing circuit 20. One end of the inductor L2 and the cathode of the diode D2 are connected to the source of the MOSFET Q2. The gate of MOSFET Q2 is connected to the output of drive control unit 3. The anode of the diode D2 is connected to the output on the low potential side of the diode bridge DB. The other end of the inductor L2 is connected to one end of the capacitor C2. The other end of the capacitor C2 is connected to one end of the current detection resistor R5 and the lighting control unit 4. The other end of the current detection resistor R5 is connected to the output on the low potential side of the diode bridge DB.

On / off switching control of the MOSFET Q2 is performed by the signal output from the drive control unit 3. When the MOSFET Q2 is turned on, a current flows through the path of the inductor L2, the capacitor C2, and the current detection resistor R5 to charge the capacitor C2 and store energy in the inductor L2. When the MOSFET Q2 is off, the energy stored in the inductor L2 is released, current flows in the order of the capacitor C2, the current detection resistor R5, and the diode D2, and the capacitor C2 is further charged. When the charged voltage exceeds the forward voltage of the light source 150, a current flows through the light source 150.

In this embodiment, a control power supply VCC1 (not shown) is generated from the output of the smoothing circuit 20 and supplied to the lighting control unit 4. Not limited to this, for example, the control power supply VCC1 can be generated from the output of the diode bridge DB.

The light source 150 can be, for example, a plurality of semiconductor light emitting element LEDs connected in series. The number of semiconductor light emitting device LEDs connected in series is not limited to four and can be any number. Further, a plurality of semiconductor light emitting element LEDs may be connected in parallel. The emission color of the semiconductor light emitting device LED may be white at 5000K or may have a different color temperature such as 3500K.

The operation of the lighting device 100 will be described. The lighting circuit 30 determines the current to be supplied to the light source 150 based on the control signal output by the drive control unit 3. The current flowing through the light source 150 is equal to the current flowing through the current detection resistor R5. Therefore, the drive control unit 3 supplies the target current to the light source 150 by detecting the current flowing through the current detection resistor R5 or the voltage generated in the current detection resistor R5 and controlling the on-duty ratio of the MOSFET Q2. Control to do so. In this way, the brightness of the light source 150 is stabilized by controlling the constant current.

Next, the operation of the control circuit 40 that changes the lighting start time in response to the pullless operation will be described. FIG. 2-4 is a flowchart showing an operation when the switch SW is pulledlessly operated in the lighting device 100 according to the present embodiment. FIG. 5-7 is a time chart showing a processing example of the lighting device 100. FIG. 8 is a time chart showing a setting range of the lighting start time.

The control circuit 40 has a "pullless time counter" and a "pullless number counter". The "pullless time counter" is a counter for counting the pullless operation time, and is composed of, for example, a timer of a microcomputer. The pullless operation time means a time during which the supply of the AC power supply AC detected by the AC power supply detection circuit 10 is cut off, that is, an output stop time. For example, if the pullless operation time is set to 2 seconds or less and the pullless operation is performed 1 second after the start of lighting, it is determined that the pullless operation has been performed. The pullless operation time may be longer or shorter than 2 seconds or less.

When the pullless operation is performed within the time specified by the pullless time counter, the "pullless count counter" determines that the pullless operation has been performed and counts the time. For example, when the pullless operation is performed once, the number of counts is increased by one. Further, the upper limit value of the pullless count counter is set, and when the pullless operation is performed beyond the upper limit value, the pullless count counter by the pullless operation is invalidated. The control circuit 40 may further include a "cumulative lighting time counter" for counting the cumulative lighting time of the light source 150. The "pullless time counter" and the "pullless number counter" can be provided in, for example, the AC power supply detection unit 1.

If the pullless operation time is short, it can be determined that there was an operation of intentionally switching the switch SW on, off, and on, that is, a pullless operation. That is, in the present embodiment, the presence or absence of the pullless operation is detected by monitoring the interruption of the supply of the external power supply that occurs as a result of the operation of the switch SW, instead of monitoring the operation of the switch SW itself.

A range in which the lighting start time can be set will be described with reference to FIGS. 1 and 8. FIG. 8 shows waveforms of an input voltage to the lighting device 100, a voltage between C1 which is a voltage generated between the electrodes of the electrolytic capacitor C1, and an output voltage of the lighting device 100. When the time Ta elapses, an external power supply is supplied and the voltage applied between the electrolytic capacitors C1 of the smoothing circuit 20 rises. Let Tb be the time when the increased C1 voltage reaches the threshold voltage Va. Let Tc_min be the shortest time until the voltage between C1 exceeds the threshold voltage Va and becomes stable after overshooting. Although it is possible to turn on the light source in the section of Tb-Tc_min, since the voltage between C1 is not stable, the light source 150 may flicker, which may cause discomfort or discomfort to the user. Therefore, in the present embodiment, the lighting of the light source in the Tb-Tc_min section is restricted. After Tc_min, the voltage between C1 is stable and the light source 150 does not flicker. Therefore, the section of Tc_min-Tc_max is set as the range in which the lighting start time can be set. That is, the lighting control unit 4 sets the minimum value of the lighting start time to a value equal to or longer than the time from when the smoothing circuit 20 receives the supply of the external power supply until the charging voltage of the smoothing circuit 20 reaches a predetermined voltage.

Next, the operation of the control circuit 40 will be described with reference to the flowcharts of FIGS. 2 to 4 and the time charts of FIGS. 5 to 8. First, in step S1 of FIG. 2, the switch SW is turned on at the time T1, and the light source is turned on at the time T2. FIG. 5 shows the times T1 and T2. At this time, in the control circuit 40, it is assumed that the lighting start time is set to the time T2 (Tc_0 (Tc_defaut)). As shown in FIG. 5, in the control circuit 40, the period from time T2 to T3 after the external power supply is supplied to the smoothing circuit 20 is set as the change acceptance period of the step dimming mode, and the period from time T3 to T4 is lit. The start time change acceptance period. The period from time T2 to T3 is called the step dimming reception period, and the period from time T3 to T4 is called the time change reception period. The stage dimming reception period and the time change reception period may be exchanged before and after, or the stage dimming reception time may be omitted.

When the switch SW is turned off during the period from time T2 to T3, the step dimming mode is set and the step dimming mode count count number M becomes 0. In FIG. 2, these processes are performed in step Sa2, step Sa3, and step Sa4. That is, the lighting control unit 4 shifts to the step dimming mode when the switch SW is turned off during the predetermined step dimming acceptance period after the external power supply is supplied to the smoothing circuit 20.

When the switch SW is turned off during the period from time T3 to T4, the lighting start time mode is set, and the lighting start time mode count number N becomes 0. In FIG. 2, these processes are performed in steps Sb2, Sb3, and Sb4. That is, the lighting control unit 4 shifts to the lighting start time mode when the switch SW is turned off during the predetermined time change acceptance period after the external power supply is supplied to the smoothing circuit 20.

If the switch SW is not turned off during the period from time T2 to T3 and the switch SW is not turned off even during the period from time T3 to T4, the light is normally turned on. In FIG. 2, the process proceeds to step Sc2.

[Step dimming mode]
The step dimming mode will be described. In step Sa5 of FIG. 2, it is determined whether the pullless operation is performed in a short period of time, for example, 2 seconds or less after the step dimming mode is set. When the pullless operation is performed within the time, it is determined in step Sa6 whether the step dimming mode count number M does not exceed the upper limit value. The upper limit is, for example, 10 times. If the step dimming mode count count M does not exceed the upper limit value, the process proceeds to step Sa7 and the step dimming mode count count M is increased by one. If the pullless operation is not performed within the time, the process proceeds to the step dimming mode process of step Sa8. Further, if the step dimming mode count number M exceeds the upper limit value, the process proceeds to the step dimming mode process of step Sa8.

FIG. 3 shows an example of step dimming mode processing. In the step dimming mode processing, the count number of the pullless operation performed in advance is used to perform an operation corresponding to the count number.

In step Sa9, if the step dimming mode count number M is less than 1, the process proceeds to step Sa25 to end the step dimming mode setting, and if the step dimming mode count count M is 1 or more, the next step Sa10 is performed. Check the number of counts.

If the step dimming mode count count M is less than 2 in step Sa10, the process proceeds to step Sa25 to end the step dimming mode processing, and if the step dimming mode count count M is 2 or more, the next step Sa11 is performed. Check the number of counts.

If the step dimming mode count count M is less than 3 in step Sa11, the step dimming mode is set to "confirmation of output status" in step Sa12 and the process ends, and the step dimming mode count count M is 3. If the above is the case, the next count number is confirmed in step Sa13.

If the step dimming mode count count M is less than 4 in step Sa13, the step dimming mode is set to "output switching" in step Sa14 and the process ends, and the step dimming mode count count M is 4 or more. If there is, the next count count is confirmed in step Sa15.

If the step dimming mode count count M is less than 5 in step Sa15, the step dimming mode is set to "output reset" in step Sa16 and the process ends, and the step dimming mode count count M is 5 or more. If so, the next count count is confirmed in step Sa17.

If the step dimming mode count count M is less than 6 in step Sa17, the step dimming mode processing is completed in step Sa25, and if the step dimming mode count count M is 6 or more, the next step Sa18 is performed. Check the number of counts.

If the step dimming mode count count M is less than 7 in step Sa18, the step dimming mode is set to "reset initial illuminance correction" in step Sa19 and the process ends, and the step dimming mode count count M is 7. If the above is the case, the next count number is confirmed in step Sa20.

If the step dimming mode count count M is less than 8 in step Sa20, the step dimming mode processing is completed in step Sa25, and if the step dimming mode count count M is 8 or more, the next step Sa21 is performed. Check the number of counts.

If the step dimming mode count count M is less than 9 in step Sa21, the step dimming mode is set to "reset cancel" in step Sa22 and the process ends, and if the step dimming mode count count M is 9 or more. In step Sa23, the next count count is confirmed.

If the step dimming mode count number M is less than 10 in step Sa23, the step dimming mode processing is completed in step Sa25, and if the step dimming mode count number M is 10, step adjustment is performed in step Sa24. The light mode is set to "all light on" and the process ends.

The step dimming mode processing is confirmed in step Sa25. After that, when the switch SW is turned on in step S26 of FIG. 2, the process set in the above-mentioned step dimming mode process is executed.

FIG. 6 shows an example of a time chart in the step dimming mode. In FIG. 6, the user performs a pullless operation during the period from time T3 to T5, and step dimming mode processing according to the number of counts of the pullless operation is realized. In this way, dimming can be performed according to the pullless operation of the switch SW in the step dimming mode.

[Lighting start time mode]
Next, the lighting start time mode will be described. In step Sb5 of FIG. 2, it is determined whether the pullless operation is performed in a short period of time, for example, 2 seconds or less after the lighting start time mode is set. When the pullless operation is performed within the time, it is determined in step Sb6 whether the lighting start time mode count number N exceeds the upper limit value. The upper limit is, for example, 7 times. If the lighting start time mode count number N does not exceed the upper limit value, the process proceeds to step Sb7 and the lighting start time mode count number N is increased by one. If the pullless operation is not performed within the time, the process proceeds to the lighting start time mode process in step Sb8. Further, if the lighting start time mode count number N exceeds the upper limit value in step Sb6, the process proceeds to the lighting start time mode processing in step Sb8. The lighting start time mode count number N is the number of pullless operations.

In this way, when the lighting control unit 4 advances to the lighting start time mode, it determines whether the switch SW has been pulledlessly operated during the predetermined standby period, and if there is a pullless operation, the pullless operation is performed as long as the upper limit is not exceeded. The number of operations is increased by one to set the next waiting period, and when there is no pullless operation, the lighting start time corresponding to the number of pullless operations is realized. FIG. 4 shows an example of setting the lighting start time according to the number of pullless operations.

An example of the lighting start time mode processing will be described with reference to FIG. The lighting start time mode processing uses the number of pullless operations set in steps Sb5, Sb6, and Sb7 of FIG. 2 to perform an operation corresponding to the number of pullless operations.

In step Sb9 of FIG. 4, if the number of pullless operations N is less than 1, the process proceeds to step Sb22 to end the lighting start time mode setting, and if the number of pullless operations N is 1 or more, the next count number is counted in step Sb10. Make a confirmation.

In step Sb10, if the number of pullless operations N is less than 2, the process proceeds to step Sb22 to end the lighting start time mode setting, and if the number of pullless operations N is 2 or more, the next count number is confirmed in step Sb11. ..

In step Sb11, if the number of pullless operations N is less than 3, the process proceeds to step Sb12, the lighting start time mode is set to "confirmation of output status" and ends, and if the number of pullless operations N is 3 or more, the process proceeds to step Sb13. And confirm the next count count.

In step Sb13, if the number of pullless operations N is less than 4, the process proceeds to step Sb14, and the lighting start time is set to "lighting start time Tc_-2 (Tc_min)" and ends. The lighting start time Tc_-2 (Tc_min) is shown in FIG. On the other hand, if the number of pullless operations N is 4 or more in step Sb13, the next count number is confirmed in step Sb15.

If the number of pullless operations N is less than 5 in step Sb15, the process proceeds to step Sb16, the lighting start time is set to "lighting start time Tc_-1", and the process ends. The lighting start time Tc_-1 is shown in FIG. On the other hand, if the number of pullless operations N is 5 or more in step Sb15, the next count number is confirmed in step Sb17.

If the number of pullless operations N is less than 6 in step Sb17, the process proceeds to step Sb18, the lighting start time is set to "lighting start time Tc_0", and the process ends. The lighting start time Tc_0 is the default lighting start time as shown in FIG. On the other hand, if the number of pullless operations N is 6 or more in step Sb17, the next count number is confirmed in step Sb19.

If the number of pullless operations N is less than 7 in step Sb19, the process proceeds to step Sb20, the lighting start time is set to "lighting start time Tc_ + 1", and the process ends. The lighting start time Tc_ + 1 is shown in FIG. On the other hand, if the number of pullless operations N is 7 in step Sb19, the process proceeds to step Sb21, the lighting start time is set to "lighting start time Tc_ + 2", and the process ends. The lighting start time Tc_ + 2 is shown in FIG.

The lighting start time mode processing is confirmed in step Sb22, and the processing proceeds to step S26 in FIG. In step S26, when the switch SW is turned on, the set process is executed.

FIG. 7 shows an example of a time chart in the lighting start time mode. In FIG. 7, the user performs a pullless operation during the period from time T4 to T6, and the lighting start time is set according to the number of pullless operations N, which is the count number of the pullless operations. In this way, the lighting start time of the light source can be adjusted according to the number of pullless operations of the switch SW in the lighting start time mode without updating the software of the lighting fixture. The lighting start time is, for example, the time from when the switch SW is turned on until the lighting circuit 30 starts power conversion for the light source 150. Setting the lighting start time to the time T2 in FIG. 5 means that the lighting of the light source 150 is reserved for the period from the time T1 to the time T2. Adjusting the lighting start time by the above-mentioned processing makes it possible to unify or substantially unify the lighting reservation period of a plurality of lighting fixtures. In other words, the lighting start times of a plurality of lighting fixtures can be unified or substantially unified.

The above-mentioned processing in the step dimming mode and processing in the lighting start time mode can be performed by the lighting control unit 4. Such processing may be realized by dedicated hardware, or may be realized by executing a program stored in the storage device by a processor. In this embodiment, the upper limit of the number of counts in the step dimming mode is 10 times, and the upper limit of the number of counts in the lighting start time mode is 7 times, but these counts can be any value. .. In addition, the operation corresponding to the number of step dimming mode counts can be changed, and the operation corresponding to the number of pullless operations can be changed.

Further, the lighting control unit 4 can store the changed lighting start time, so that the stored lighting start time can be continuously used as long as there is no change. The lighting control unit 4 may realize an arbitrary fade by changing the speed at which the light source changes from a dark state to a predetermined brightness at the lighting start time.

1 AC power supply detection unit, 2 drive control unit, 3 drive control unit, 4 lighting control unit, 10 AC power supply detection circuit, 20 smoothing circuit, 30 lighting circuit, 40 control circuit, 100 lighting device, 150 light source, 200 lighting equipment

Claims (9)

A smoothing circuit that is supplied with external power to charge the rectified voltage,
A switch for switching whether or not the external power supply is supplied to the smoothing circuit,
A lighting circuit that converts the output of the smoothing circuit into electric power for lighting the light source, and
A lighting control unit that controls the lighting circuit is provided.
The lighting control unit shifts to the lighting start time mode when the switch is turned off during a predetermined time change acceptance period after the external power supply is supplied to the smoothing circuit, and in the lighting start time mode. A lighting device characterized in that the lighting start time of the light source is changed according to the pullless operation of the switch. The lighting device according to claim 1, wherein the lighting control unit changes the lighting start time of the light source according to the number of pullless operations of the switch in the lighting start time mode. The lighting device according to claim 2, wherein the lighting control unit stores the lighting start time after the change. The lighting control unit is in the lighting start time mode.
It is determined whether or not the switch has been pulledlessly operated during the predetermined waiting period, and if the switch has been pulledlessly operated, the number of pullless operations is increased by one to set the next waiting period, and the pullless operation is not performed. The lighting device according to claim 2 or 3, wherein the lighting start time is changed according to the current number of pullless operations. The lighting control unit sets the minimum value of the lighting start time to a value equal to or longer than the time from when the smoothing circuit receives the supply of the external power supply until the charging voltage of the smoothing circuit reaches a predetermined voltage. The lighting device according to any one of claims 1 to 4, wherein the lighting device is characterized. A pullless operation detection circuit that detects the pullless operation of the switch and transmits the detection result to the lighting control unit is provided.
The claim is characterized in that the pullless operation detection circuit detects a pullless operation including a combination of an on period in which the external power supply is supplied to the smoothing circuit and an off period in which the external power supply is cut off from the smoothing circuit. The lighting device according to any one of 1 to 5. The lighting control unit shifts to the stage dimming mode and shifts to the stage dimming mode when the switch is turned off during a predetermined stage dimming reception period after the external power supply is supplied to the smoothing circuit. The lighting device according to any one of claims 1 to 6, wherein dimming is performed according to a pullless operation of the switch in the mode. The lighting according to any one of claims 1 to 7, wherein the lighting control unit changes the speed at which the light source changes from a dark state to a predetermined brightness at the lighting start time. Device. The lighting device according to any one of claims 1 to 8.
A luminaire comprising a light source that receives power from the lighting device.

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