JP6072495B2 - Light source lighting device and lighting system - Google Patents

Description

  The present invention relates to a light source lighting device and an illumination system.

  In devices and lighting systems that turn on solid-state light sources such as LEDs, there is a technology that uses an external battery (such as an automobile battery) to turn on the light source when the AC power supply from the commercial power supply is interrupted due to a power failure or the like. Yes (see, for example, Patent Document 1).

  The device of Patent Literature 1 is an LED lighting device that can supply power from a battery of an automobile during a power failure such as a disaster. In this apparatus, AC100V or AC200V power is supplied from a commercial power supply to the LED power supply unit at normal times, and power is supplied from the LED power supply unit to the LED substrate to light the LED. When a power failure occurs due to an earthquake or the like and power cannot be supplied from a commercial power source, the worker connects to the car battery. As a result, the automatic switching device is activated and the connection from the commercial power source to the battery is switched. The direct current power of the battery is converted from direct current to alternating current by the power converter (DC / AC inverter) and supplied to the LED power supply unit, and the LED is lit. To do. Thus, the LED is lit by the battery during a power failure. When the power failure is restored and the operator releases the battery connection, the automatic switching device is activated to switch from the battery to the commercial power supply, and the commercial power supply turns on the LED.

International Publication No. 2010/104046

  The above-described conventional device has a problem that an automatic switching device that converts DC power from the battery into AC power is necessary. In addition, if the worker does not release the connection with the external battery when recovering from the power failure, the power will continue to be supplied from the battery. There has been a problem in that the discharge of the gas proceeds too much.

  An object of the present invention is, for example, to eliminate the need for an automatic switching device that converts DC power from a battery into AC power in an apparatus that turns on a light source using DC power from the battery.

A light source lighting device according to an aspect of the present invention includes:
A rectifying unit that rectifies AC power supplied from a commercial power supply and outputs pulsating power;
A power supply unit that converts the pulsating power output from the rectifying unit into direct current power for lighting a light source and outputs the power, and
A connection unit connected to the power supply unit and outputting DC power supplied from an external battery to the power supply unit;
When the pulsating power is not output from the rectification unit and the DC power is output from the connection unit, the power supply unit converts the DC power into DC power for lighting the light source and outputs the DC power.

  In the light source lighting device according to one aspect of the present invention, the power supply unit does not output pulsating power from the rectification unit, and DC power is output from a connection unit for outputting DC power supplied from an external battery. When output, the direct current power is converted into direct current power for lighting the light source and output. This eliminates the need for an automatic switching device that converts DC power from the battery into AC power.

FIG. 3 is a circuit diagram illustrating a configuration of the illumination system according to Embodiment 1; FIG. 6 is a block diagram illustrating a configuration of an illumination system according to Embodiment 2. FIG. 6 is a block diagram illustrating a configuration of an illumination system according to Embodiment 3. FIG. 6 is a block diagram illustrating a configuration of an illumination system according to Embodiment 4. FIGS. 6A and 6B are a side view and a bottom view illustrating an example of a lighting fixture according to Embodiment 4. FIGS.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the description of each embodiment, the directions such as “up”, “down”, “left”, “right”, “front”, “back”, “front”, “back” are However, it is not intended to limit the arrangement or orientation of devices, instruments, parts, or the like.

Embodiment 1 FIG.
FIG. 1 is a circuit diagram showing a configuration of an illumination system 10 according to the present embodiment.

  In FIG. 1, the illumination system 10 includes a light source lighting device 12 connected to a commercial power source 11 and a light source unit 13 connected to the light source lighting device 12. The light source lighting device 12 can also be connected to an external battery 14 (for example, a battery of an automobile such as an electric car).

  The light source lighting device 12 rectifies AC power supplied from the commercial power supply 11 and outputs pulsating power, and converts the pulsating power output from the rectifying unit 20 into DC power for lighting the light source. Power supply unit 30 and a connection unit 40 connected to the power supply unit 30 and for outputting DC power supplied from the battery 14 to the power supply unit 30. When the pulsating power is not output from the rectifying unit 20 and the DC power is output from the connecting unit 40, the power supply unit 30 converts the DC power into the DC power for lighting the light source and outputs it.

  The rectification unit 20 is a direct current generation unit, and includes a full wave rectification circuit 21 that performs full wave rectification of AC power from the commercial power supply 11 and outputs pulsating power.

  The power supply unit 30 is connected to the full-wave rectifier circuit 21 and is connected to the power factor improvement circuit 31 configured by a boost converter and the like, the output capacitor 32 connected to the power factor improvement circuit 31, and the output capacitor 32. And a converter 33 configured as a converter.

  The power factor correction circuit 31 is an example of a booster circuit that boosts the pulsating power output from the rectifier 20. In the present embodiment, the power factor improvement circuit 31 improves the power factor of the pulsating power output from the full-wave rectifier circuit 21 and boosts and outputs the pulsating power. In the present embodiment, the power factor correction circuit 31 may be omitted, and in that case, the output capacitor 32 may be directly connected to the full-wave rectifier circuit 21.

  The output capacitor 32 is an example of a smoothing circuit that smoothes the pulsating power output from the rectifying unit 20 (directly or via a booster circuit or the like). In the present embodiment, the output capacitor 32 smoothes the pulsating power output from the power factor correction circuit 31 and outputs DC power.

  The converter 33 is an example of a step-down circuit that steps down DC power output from the smoothing circuit. In the present embodiment, converter 33 steps down DC power output from output capacitor 32 and outputs DC power for lighting the light source. As described above, the converter 33 is configured as a buck converter, and includes a diode 34, a capacitor 35, a coil 36, a resistor 37, a switching element 38 (MOSFET), and a control unit 39 (IC). When the switching element 38 is on, the converter 33 causes the current flowing from the output capacitor 32 to flow to the capacitor 35, charges the capacitor 35, and accumulates energy in the coil 36 by the current flowing from the output capacitor 32. When the switching element 38 is off, the converter 33 releases energy from the coil 36, and a current generated by this energy is supplied to the capacitor 35 via the diode 34 to charge the capacitor 35. Then, the converter 33 outputs DC power having a voltage lower than the voltage of DC power supplied from the output capacitor 32 from the capacitor 35 to the light source unit 13. The control unit 39 of the converter 33 controls on / off of the switching element 38 according to the output current to the light source unit 13 detected by the resistor 37. In this embodiment, the converter 33 is described as a buck converter. However, the converter 33 may be configured by a system other than the buck converter, such as a flyback converter.

  The connection unit 40 is connected to the battery 14 and is connected to the first connection unit 41 configured by a switch or the like, and is connected between the first connection unit 41 and the power supply unit 30 and configured to be a boost converter. 42.

  The first connection unit 41 inputs DC power supplied from the battery 14. The first connection unit 41 is a device that receives power from the battery 14 and supplies power to the second connection unit 42, and performs connection / release for receiving power from the battery 14 or supplying power to the second connection unit 42. It consists of mechanical switches.

  The first connection unit 41 is not limited to the mechanical switch as described above, but is an electronic switch for supplying and stopping power supply, connection / release means using a connector, or a power conversion function from DC to DC. Or a non-contact power supply device that converts the direct current of the battery 14 to high frequency and transmits power by electromagnetic coupling. Or the 1st connection part 41 may be provided with two or more of these means (a mechanical switch is included). In addition, the first connection unit 41 may include means for generating a signal for setting the output of the converter 33 to be different from the power supply from the commercial power supply 11 in the power supply state from the battery 14.

  It is preferable that the first connection portion 41 is disposed at a location close to the battery 14.

  The second connection unit 42 outputs the DC power input by the first connection unit 41 to the power supply unit 30. As described above, the second connection unit 42 is configured by a boost converter, and includes a switching element 44 (MOSFET), a control unit 45 (IC), a high-frequency transformer 46, diodes 47 and 48, and a capacitor 49. The second connection unit 42 stores energy in the high-frequency transformer 46 by a current flowing from the first connection unit 41 when the switching element 44 is on. When the switching element 44 is off, the second connection portion 42 releases energy from the high-frequency transformer 46, and a current generated by this energy flows to the output capacitor 32 and the capacitor 49 via the diodes 47 and 48, and output. The capacitor 32 and the capacitor 49 are charged. The second connection unit 42 outputs DC power having a voltage higher than the peak voltage of the DC power supplied from the first connection unit 41 from the output capacitor 32 to the converter 33, and outputs a predetermined DC voltage from the capacitor 49. The voltage is applied to the control unit 39 of the converter 33. The voltage applied by the second connection unit 42 to the control unit 39 of the converter 33 corresponds to a signal for setting the output of the converter 33 to be different from the power supply from the commercial power supply 11 in the power supply state from the battery 14. The control unit 45 of the second connection unit 42 controls on / off of the switching element 44.

  The second connection unit 42 is not limited to an electronic circuit having a function of converting power from direct current to direct current as described above, but a mechanical switch for connecting / disconnecting the battery 14 or feeding and stopping the power supply. It may be a connection / opening means such as an electronic switch or a connector, or a non-contact power supply device that converts the direct current of the battery 14 to high frequency and transmits electric power by electromagnetic coupling. Alternatively, the second connection portion 42 may include a plurality of these means (including an electronic circuit having a power conversion function).

  The second connection part 42 is directly attached to the power supply part 30 by a connector or other means, or is configured such that its output wiring can be connected to the power supply part 30.

  The light source unit 13 is lit by DC power output from the power supply unit 30. In the present embodiment, the light source unit 13 includes a plurality of LEDs connected in series. The number of LEDs, connection method, arrangement, etc. are arbitrary. Moreover, LED is an example of a light source, and in this Embodiment, it may replace with LED and may use other types of light sources, such as organic EL.

  In the present embodiment, during normal times, the AC voltage from the commercial power supply 11 is converted into a DC voltage by the full-wave rectifier circuit 21, the power factor correction circuit 31, and the output capacitor 32, and this DC voltage is input to the converter 33. The converter 33 supplies a predetermined constant current to the LED of the light source unit 13 by a switching operation, and turns on the LED. Here, it is assumed that the output voltage of the power factor correction circuit 31 when power is supplied from the commercial power supply 11 is 280V. When a power failure occurs, the first connection portion 41 is connected and the battery 14 is energized to the second connection portion 42. The second connection portion 42 starts a switching operation and outputs to the secondary side of the high-frequency transformer 46. generate. This output (direct current) is input to the converter 33 via the diode 47. At this time, the output voltage of the diode 47 is set to 200V. The converter 33 converts the voltage applied from the second connection unit 42 and turns on the LED of the light source unit 13. Since the converter 33 exhibits a constant current characteristic even when the input DC voltage changes, the LED can be lit with the same current as in a normal state.

  According to the present embodiment, the automatic switching device that converts the DC power from the battery 14 into AC power becomes unnecessary.

  In the present embodiment, when the power supply unit 30 converts the DC power output from the connection unit 40 into the DC power for lighting the light source and outputs it, the pulsating power output from the rectifying unit 20 is used for the light source lighting. You may output DC power smaller than the case where it converts into DC power and outputs. That is, in order to suppress the consumption of the battery 14, the converter 33 may turn on the LED by reducing the current of the LED when the power of the battery 14 is used. In this case, as described above, for example, the output voltage of the capacitor 49 of the second connection unit 42 is used as a signal, and this signal is input to the control unit 39 of the converter 33. When this signal (the voltage of the capacitor 49) is input, the control unit 39 of the converter 33 sets the output current of the converter 33 to be in a dimming state, thereby reducing the LED current and lighting the LED. . That is, the control unit 39 of the converter 33 determines whether the power supply source is the commercial power supply 11 or the battery 14 depending on whether a predetermined signal is input from the second connection unit 42, and the converter 33 according to the determination result. Adjust the output current.

  When recovering from a power failure or the like, the output voltage of the power factor correction circuit 31 is set so as to be higher than the output voltage of the second connection part 42, so forgetting to disconnect the battery 14 immediately after recovery. Even so, main power is not supplied from the battery 14, and consumption of the battery 14 can be suppressed.

  In the present embodiment, since only the low voltage of the battery 14 is applied to the wiring path connecting the first connection portion 41 and the second connection portion 42, the safety is high even during a disaster.

  As described above, in the present embodiment, connection unit 40 converts the DC power supplied from battery 14 into predetermined DC power and outputs it to power supply unit 30. The connection unit 40 is connected to the input side of the output capacitor 32 and outputs DC power having a voltage lower than the pulsating power output from the power factor correction circuit 31. The connection unit 40 may be connected to the input side of the power factor correction circuit 31. In this case, DC power having a voltage lower than the pulsating power output from the rectification unit 20 (full-wave rectification circuit 21) is used. Output. Alternatively, the connection unit 40 may be connected to the input side of the converter 33, and in this case, outputs DC power having a voltage lower than the pulsating power output from the output capacitor 32. In any of the configurations, the main power supply source is automatically switched from the battery 14 to the commercial power supply 11 when the power is restored from the power failure. For this reason, it is possible to turn on a light source such as an LED by connecting the battery 14 at the time of a power failure, and if the power is restored from the power failure without releasing the connection of the battery 14, the main power is supplied from the commercial power supply 11. Therefore, unnecessary consumption of the battery 14 can be prevented. Furthermore, even when the connection of the battery 14 is forgotten, the main power supply source is automatically switched from the commercial power source 11 to the battery 14 when turning off at midnight or the like, and the light source is turned on. The user can be alerted about forgetting to disconnect the battery 14.

  As described above, with respect to the converter 33, the example of the buck converter is shown in FIG. 1, but other circuit configurations (for example, a flyback converter) may be applied as long as a predetermined direct current can be supplied to the solid-state light source. Good.

  Although a description has been given of the case where a light emitting diode is used as the solid light source, other solid light sources (for example, organic EL) may be applied as long as they supply DC power.

  Regarding the operations in the first connection unit 41 and the second connection unit 42, applicable combinations will be described in detail below.

  When the first connection unit 41 does not include an electronic circuit having a power conversion function from direct current to direct current and performs connection / release with the battery 14, the second connection unit 42 has an electronic circuit function having a power conversion function from direct current to direct current. , The output of the second connection unit 42 may be input to either the converter 33 or the output capacitor 32, and the wiring line voltage between the first connection unit 41 and the second connection unit 42 is the low-voltage battery 14. The voltage is sufficient.

  When the first connection unit 41 does not include an electronic circuit having a power conversion function from direct current to direct current and performs connection / release with the battery 14, the second connection unit 42 has an electronic circuit function having a power conversion function from direct current to direct current. Is not included, the output of the second connection unit 42 is input to the power factor correction circuit 31 having a boosting function and boosted to a predetermined voltage. If the output is reduced when power is supplied from the battery 14 at this time, a signal may be supplied from the output of the second connection portion 42 to the converter 33 to reduce the output of the converter 33 as compared with normal lighting. Also in this case, the voltage of the wiring line between the first connection part 41 and the second connection part 42 may be the voltage of the low-voltage battery 14.

  When the first connection part 41 includes a non-contact power supply device that converts the direct current of the battery 14 to high frequency and transmits electric power by electromagnetic coupling, the wiring line voltage between the first connection part 41 and the second connection part 42 is low. It is assumed that DC 24V or 48V, which is a safety extra low voltage. At this time, if the second connection unit 42 includes an electronic circuit having a function of converting power from DC to DC, the output of the second connection unit 42 may be input to either the converter 33 or the output capacitor 32. The voltage of the wiring line between the first connection part 41 and the second connection part 42 may be the voltage of the low-voltage battery 14.

  When the second connection unit 42 does not include an electronic circuit having a DC-to-DC power conversion function, the output of the second connection unit 42 is input to the power factor correction circuit 31 having a boosting function and boosted to a predetermined voltage. . If the output is reduced when power is supplied from the battery 14 at this time, a signal may be supplied from the output of the second connection portion 42 to the converter 33 to reduce the output of the converter 33 as compared with normal lighting. Also in this case, the voltage of the wiring line between the first connection part 41 and the second connection part 42 may be the voltage of the low-voltage battery 14.

  It is desirable that the first connection portion 41 is provided near the battery 14 of an automobile or the like, and is provided with a connector or the like on the input terminal side so that output wiring from the battery 14 can be easily attached, and can be installed outdoors. It is desirable to be housed in a waterproof structure envelope (not shown). In addition, it is preferable to bury the envelope in the ground at normal times because it does not hinder general work.

  When the first connection part 41 includes a non-contact power supply device that converts the direct current of the battery 14 into high frequency and transmits electric power by electromagnetic coupling, the battery 14 starts from the battery 14 when power is not supplied to the second connection part 42. It is also preferable to be able to stop the operation of the non-contact power supply apparatus even if there is an input of the above, because useless power is not used.

  According to this embodiment, at the time of a power failure, a light source such as an LED can be turned on by supplying power from a battery 14 such as an automobile, and if the power is restored from the power failure without disconnecting the battery 14, the main power is Since it is supplied from the commercial power supply 11, unnecessary consumption of the battery 14 can be prevented. Moreover, since the voltage of the wiring path between the 1st connection part 41 and the 2nd connection part 42 can be made low, safety | security increases.

Embodiment 2. FIG.
In the present embodiment, differences from the first embodiment will be mainly described.

  FIG. 2 is a block diagram showing a configuration of illumination system 10 according to the present embodiment.

  In FIG. 2, the connection unit 40 of the light source lighting device 12 inputs DC power from the battery 14 by non-contact power feeding and outputs it to the power supply unit 30. The structure of the other illumination system 10 is the same as that of Embodiment 1 shown in FIG.

  In the present embodiment, the first connection portion 41 is a non-contact power supply device that converts the direct current of the battery 14 to high frequency and transmits power by electromagnetic coupling. The first connection unit 41 converts the DC voltage of the battery 14 into a high frequency, and generates a DC voltage boosted to the secondary side by electromagnetic coupling from the output. The second connection unit 42 does not include the boost converter as in the first embodiment, and has a connection function by a connector.

  Also in the present embodiment, when battery 14 is connected, converter 33 can light the LED of light source unit 13 as in the first embodiment. Since the connection part 40 is insulated from the battery 14 side by non-contact power feeding, safety is improved.

  Also in the present embodiment, when the LED is turned on with the output from the battery 14, if the LED current is reduced as compared with the case where the LED is turned on with the output from the commercial power supply 11, a converter is provided inside the second connection portion 42. A signal for reducing the output of 33 may be generated and input to the control unit 39 of the converter 33.

  When the voltage of the wiring path between the first connection part 41 and the second connection part 42 is increased as a safety extra low voltage such as DC45V, for example, the output voltage of the second connection part 42 is improved in power factor. What is necessary is just to input into the circuit 31. Or the 2nd connection part 42 should just be provided with the electronic circuit which has the power conversion function from direct current | flow to direct current | flow like the thing shown in FIG.

Embodiment 3 FIG.
In the present embodiment, differences from the first embodiment will be mainly described.

  FIG. 3 is a block diagram showing a configuration of illumination system 10 according to the present embodiment.

  In FIG. 3, the light source lighting device 12 includes a housing 50 that houses the rectifying unit 20 and the power supply unit 30. The rectifying unit 20, the power supply unit 30, and the housing 50 constitute one lighting fixture. The light source unit 13 is attached to the housing 50 and is lit by DC power output from the power supply unit 30 housed in the housing 50.

  The housing 50 is installed indoors. The battery 14 is installed outdoors.

  In the present embodiment, the connection portion 40 of the light source lighting device 12 includes a first connection portion 41 disposed in the vicinity of the battery 14 (ie, outdoors) and a second connection portion attached to the housing 50 (ie, indoors). 42 and a third connecting portion 43 attached to a wall surface of a room where the housing 50 is installed.

  The 3rd connection part 43 supplies the direct-current power input by the 1st connection part 41 to the 2nd connection part 42 via wiring. The second connection unit 42 outputs the DC power supplied from the third connection unit 43 to the power supply unit 30.

  Also in the present embodiment, when the LED is turned on with the output from the battery 14, if the LED current is reduced as compared with the case where the LED is turned on with the output from the commercial power supply 11, a converter is provided inside the second connection portion 42. A signal for reducing the output of 33 may be generated and input to the control unit 39 of the converter 33.

  When the third connecting portion 43 has a function of boosting the output voltage of the battery 14, the second connecting portion 42 does not require a circuit for realizing the boosting function. Easy to install. If the second connecting portion 42 has a function of boosting the output voltage of the battery 14, the voltage of the wiring path connecting the first connecting portion 41 and the third connecting portion 43 is low, so that safety is improved.

Embodiment 4 FIG.
In the present embodiment, differences from the first embodiment will be mainly described.

  FIG. 4 is a block diagram showing a configuration of illumination system 10 according to the present embodiment.

  In FIG. 4, the light source lighting device 12 includes a plurality of housings 50 that house the rectifying unit 20 and the power supply unit 30. The rectifying unit 20, the power supply unit 30, and the housing 50 constitute one lighting fixture. The light source unit 13 is attached to each of the plurality of housings 50 (each having at least one LED) and is lit by DC power output from the power supply unit 30 housed in the corresponding housing 50. To do.

  The casing 50 is installed indoors (for example, one for each room). The battery 14 is installed outdoors (for example, in one automobile).

  One connection section 40 of the light source lighting device 12 is provided for the plurality of casings 50, and the common first connection section 41 for inputting DC power supplied from the battery 14 and the plurality of casings 50 are provided. And a plurality of second connection portions 42 that output DC power input by the first connection portions 41 to the power supply portions 30 housed in the corresponding housings 50.

  The 1st connection part 41 is arrange | positioned in the vicinity of the battery 14 (namely, outdoor). The second connection portion 42 is detachably attached to each of the plurality of casings 50 (that is, indoors) one by one.

  In the present embodiment, one battery 14 supplies power to the plurality of light source units 13. For this purpose, the first connection portion 41 supplies power to the plurality of second connection portions 42, and each second connection portion 42 supplies power to the corresponding converter 33. When a plurality of lighting fixtures exist in the same room, only one second connection part 42 is provided in the room, and branch power is fed from the second connection part 42 to different converters 33 in the room. It may be. In this case, the wiring from the 1st connection part 41 to the 2nd connection part 42 can be reduced.

  FIG. 5 is a side view and a bottom view illustrating an example of a lighting fixture.

  In FIG. 5, a casing 50 (that is, a lighting fixture) that houses the rectifying unit 20 and the power supply unit 30 is attached to the ceiling surface 15. The second connection portion 42 is connected to the housing 50 by mechanical holding means such as a connector and electrical connection means. The second connecting portion 42 can be attached and detached, and may be attached at the time of a power failure or the like.

  Also in the present embodiment, when the LED is turned on with the output from the battery 14, if the LED current is reduced as compared with the case where the LED is turned on with the output from the commercial power supply 11, a converter is provided inside the second connection portion 42. A signal for reducing the output of 33 may be generated and input to the control unit 39 of the converter 33. In this case, the LED can be turned on using the power of the battery 14 for a long time in the event of a power failure or the like. That is, in a lighting fixture capable of dimming lighting in a normal state, if the output setting range of the light source unit 13 is set so that the lower limit value of the dimming lighting is set as the lower limit in the lighting state supplied from the battery 14, the light source Since it has been confirmed at normal time that the LED of the unit 13 is stably lit, a reliable lighting state can be obtained even when the power of the battery 14 is reduced.

  As mentioned above, although embodiment of this invention was described, you may implement in combination of 2 or more among these embodiment. Alternatively, one of these embodiments may be partially implemented. Alternatively, two or more of these embodiments may be partially combined. In addition, this invention is not limited to these embodiment, A various change is possible as needed.

  DESCRIPTION OF SYMBOLS 10 Lighting system, 11 Commercial power supply, 12 Light source lighting device, 13 Light source part, 14 Battery, 15 Ceiling surface, 20 Rectification part, 21 Full wave rectification circuit, 30 Power supply part, 31 Power factor improvement circuit, 32 Output capacitor, 33 Converter , 34 Diode, 35 Capacitor, 36 Coil, 37 Resistance, 38 Switching element, 39 Control part, 40 Connection part, 41 1st connection part, 42 2nd connection part, 43 3rd connection part, 44 Switching element, 45 Control part , 46 High-frequency transformer, 47, 48 diode, 49 capacitor, 50 housing.

Claims (13)

A rectifying unit that rectifies AC power supplied from a commercial power supply and outputs pulsating power;
A smoothing circuit that smoothes the pulsating power output from the rectifying unit and outputs DC power, and when the pulsating power is output from the rectifying unit, the DC power output from the smoothing circuit is used for lighting a light source. A power supply unit having a converter for converting to DC power and outputting to an external light source ;
A connection unit connected to the power supply unit and outputting DC power supplied from an external battery to the power supply unit;
When the converter does not output pulsating power from the rectification unit and DC power is output from the connection unit , the converter converts the DC power output from the connection unit to DC power for lighting the light source. Output to the light source ,
The converter controls a switching element, a resistor for detecting an output current to the light source, and on / off of the switching element according to an output current detected by the resistor, whereby an output current to the light source And a control unit for controlling the current to a constant current,
Wherein the control unit is not output pulsating power from the rectification section, and wherein when the DC from the connection unit power is output, the light source lighting device that will be driven by a DC voltage applied from the connecting portion. The connecting portion includes a light source lighting device according to 請 Motomeko 1 you output to the power supply unit converts the DC power supplied to a predetermined DC power from the battery. The connecting portion includes a light source lighting device according to 請 Motomeko 2 you output DC power voltage lower than the pulsating current power output from the rectifying unit. It said converter is a step-down circuit which steps down the DC power output from the previous SL smoothing circuit,
The connecting portion includes a light source lighting device according to 請 Motomeko 2 that will be connected to the input side of the step-down circuit. The connecting portion includes a light source lighting device according to 請 Motomeko 4 you outputs a DC power voltage lower than the DC power output from the smoothing circuit. The power supply unit has a booster circuit that boosts the pulsating power output from the rectifier unit and outputs the boosted power to the smoothing circuit .
The connecting portion includes a light source lighting device according to any one of 3 from 請 Motomeko 1 that will be connected to the input side of the booster circuit. When the converter converts the DC power output from the connection unit into DC power for lighting the light source and outputs the DC power, the converter converts the pulsating power output from the rectifying unit to DC power for lighting the light source and outputs the converted DC power. light source lighting device according to any one of 請 Motomeko 1 to 6 you output a smaller DC power than when. The connecting portion includes a light source lighting device according to any one of 請 Motomeko 1 you output to the power unit to input DC power 7 by non-contact power supply from the battery. A plurality of housings for housing the rectifying unit and the power source unit;
One connection section is provided for the plurality of casings, and two or more common first connection sections for inputting DC power supplied from the battery and two or more for the plurality of casings are provided. , the DC power input by the first connecting portion of the common, either from the corresponding 請 Motomeko 1 that having a plurality of second connecting section for outputting to the power unit housed in a housing 8 1 The light source lighting device according to item . The plurality of housings are installed indoors,
It said common first connecting portion, a light source lighting device according to 請 Motomeko 9 that will be installed outdoors. It said plurality second connecting portion of the light source lighting device according to the plurality of housing 請 Motomeko 9 or 10 that one removably attached to each. A rectifying unit that rectifies AC power supplied from a commercial power supply and outputs pulsating power;
A power supply unit that converts the pulsating power output from the rectifying unit into direct current power for lighting a light source and outputs the power, and
A connection unit connected to the power supply unit and outputting DC power supplied from an external battery to the power supply unit ;
A plurality of housings for housing the rectifying unit and the power source unit ;
When the pulsating power is not output from the rectifying unit and the DC power is output from the connection unit, the power supply unit converts the DC power into DC power for lighting a light source and outputs the power .
One connecting portion is provided for each of the plurality of casings, and is detachable one by one for each of the plurality of casings and a common first connecting portion for inputting DC power supplied from the battery. mounted, said common first DC power input by the connection unit, the corresponding light source lighting device which have a plurality of second connecting section for outputting to the power unit housed in the housing. A light source lighting device according to any one of claims 9 to 12 ,
A plurality of housings mounted at least one at each corresponding lighting system Ru and a plurality of light sources to be lit by a DC power output from the housed power supply unit to the housing of the light source lighting device.

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