JP6917564B2 - Lighting lighting device and lighting device - Google Patents

Description

The present invention relates to a lighting device and a lighting device, and more particularly to a lighting device and a lighting device that supply electric power to both a light source and an electronic device.

Lighting for lighting installed in a residence or office, for lighting the light source of the lighting device, for example, converting AC power input from a commercial power source so as to be suitable for supplying power to the light source. It has a lighting circuit. Further, with the diversification of the functions of the lighting device, there is a demand to provide the lighting device with other electronic devices such as a fan. In this case, a circuit for supplying electric power to other electronic devices is also required.

Therefore, conventionally, various techniques have been proposed as a lighting device having a function of supplying electric power to other electronic devices (see, for example, Patent Document 1). Patent Document 1 provides a circuit for supplying electric power to a light source and a circuit for supplying electric power to an air-cooled fan as another electronic device.

Japanese Unexamined Patent Publication No. 2014-139901

In the prior art disclosed in Patent Document 1, when the lighting device is provided with other electronic devices as described above, the circuit for supplying electric power to the light source and the circuit for supplying electric power to the other electronic devices are respectively. It is provided, and the circuit configuration becomes complicated.

Further, recently, an increasing number of lighting devices are further provided with a control circuit for performing dimming, toning, etc. of a light source. Further, when another electronic device is provided in the lighting device, there is a demand to control the other electronic device independently of the light source, for example, to control the ON / OFF of the other electronic device independently of the ON / OFF of the light source. be. In this case, a control circuit for controlling other electronic devices is also required. Therefore, the circuit configuration of the lighting device becomes more complicated, which leads to an increase in the cost of parts and an increase in the size of the lighting circuit. On the other hand, when other electric devices are provided in the lighting device, a new one capable of reducing the circuit configuration as compared with the conventional one is required.

An object of the present invention is to provide a lighting device and a lighting device capable of reducing the circuit configuration as compared with the conventional case when other electronic devices are provided in the lighting device in order to solve the above problems.

In order to achieve the above object, the lighting lighting device according to one aspect of the present invention includes an input terminal for inputting an AC voltage, a voltage conversion circuit for converting the AC voltage into a voltage and supplying it to a light source, and a linear for generating a control voltage. A first control power supply circuit including a regulator circuit, a capacitor that receives the output voltage of the first control power supply circuit, a second control power supply circuit that lowers the output voltage of the capacitor, and the first control power supply circuit. Operates according to the output voltage of the first control circuit for controlling the voltage conversion circuit and the output voltage of the second control power supply circuit, and inputs the AC voltage input from the input terminal. A second control circuit that can be detected and an electronic device control circuit that is connected to an electronic device and for switching an ON / OFF state of supplying an AC voltage to the electronic device are provided, and the input terminal includes 1 The one terminal supplies power to the first control power supply circuit and is connected to the electronic device via the electronic device control circuit as a common terminal connected to the electronic device control circuit. When the control circuit of 2 detects that the interruption time of the input AC voltage is within a predetermined time, the control circuit causes the electronic device control circuit to switch the ON / OFF state of the supply of the AC voltage to the electronic device.

According to the lighting device according to the above aspect of the present invention, a control voltage is provided to a plurality of control circuits including a control circuit for a light source and a control circuit for other electronic devices by standardizing and coordinating the circuit configuration. Other electronic devices can be started or stopped in response to a simple switch operation on the power supply. As a result, it is possible to reduce the cost of parts, reduce the power consumption, and reduce the size of the device.

In the lighting device according to one aspect of the present invention, the electronic device is a fan, and the electronic device control circuit is in an ON / OFF state of supplying an AC voltage to the fan so as to operate or stop the fan. May be switched.

As a result, the fan can be operated or stopped in response to a simple switch operation on the power supply, which leads to improvement in convenience.

In the illumination lighting device according to one aspect of the present invention, the second control circuit includes a microcomputer capable of generating a control signal for the electronic device control circuit, and the microcomputer has a predetermined interruption time of an input AC voltage. When it is detected that the time is within the time, the control signal to be generated may be changed.

This makes it possible to monitor the interruption of the AC voltage input and generate the corresponding control signal with a simple circuit configuration.

In the lighting device according to one aspect of the present invention, the first control power supply circuit may generate the control voltage from an AC voltage.

As a result, it is possible to generate a control voltage for supplying electric power to the control circuit in the subsequent stage with a simple circuit configuration.

The lighting device according to one aspect of the present invention further includes a rectifying circuit that rectifies the input AC voltage, and the first control power supply circuit generates the control voltage from the DC voltage rectified by the rectifying circuit. You may.

As a result, it is possible to generate a control voltage for supplying electric power to the subsequent control circuit from the rectified DC voltage.

In the lighting device according to one aspect of the present invention, the first control power supply circuit may include a transistor operating in a saturation region and a constant voltage diode, and generate a first constant voltage as an output voltage. ..

As a result, it is possible to supply a stable control voltage, reduce power consumption, and improve the energy efficiency of the entire device.

In the lighting device according to one aspect of the present invention, the capacitor has a capacity capable of maintaining the operation of the second control circuit within a period of the predetermined time or more in a state where the input of the AC voltage is stopped. May have a value.

As a result, even when the input of the AC voltage of the power supply is stopped, the normal operation of the second control circuit can be maintained within a predetermined time. Therefore, the second control circuit detects that the interruption time of the AC voltage input from the power supply is within the predetermined time by detecting whether or not the AC voltage of the power supply has recovered within the predetermined time. can do.

In the lighting device according to one aspect of the present invention, the second control power supply circuit includes a three-terminal regulator and has a second constant voltage lower than the first constant voltage which is the output voltage of the first control power supply circuit. The voltage may be generated as an output voltage.

As a result, it is possible to realize a step-down of the control voltage and a stable voltage output with a simple circuit configuration.

In the lighting device according to one aspect of the present invention, the electronic device control circuit includes a photocoupler and a triac, and the second control circuit detects that the interruption time of the input AC voltage is within a predetermined time. In this case, the high / low level of the control signal output to the photocoupler is switched, and the ON / OFF state of the photocoupler is switched to switch the ON / OFF state of the triac to the electronic device. The ON / OFF state of the AC voltage supply may be switched.

As a result, the ON / OFF state of the AC voltage supply to the electronic device can be switched based on the control signal of the second control circuit, and further, the electronic device control part and the light source control part can be switched by using the photocoupler. Can be isolated.

The lighting device according to one aspect of the present invention includes a lighting device according to any one of the above aspects, a light source that lights based on the output power of the voltage conversion circuit of the lighting lighting device, and the lighting device. It includes the electronic device whose power supply is controlled by an electronic device control circuit.

As a result, the effect corresponding to the lighting device according to each of the above aspects can be obtained.

INDUSTRIAL APPLICABILITY The present invention provides a lighting device and a lighting device capable of reducing the circuit configuration as compared with the conventional case when other electronic devices are provided in the lighting device.

It is a circuit block diagram which shows typically the basic structure of the lighting lighting device and the lighting device which concerns on 1st Embodiment of this invention. It is a circuit diagram which shows one specific example of the 1st control power supply circuit in the lighting | lighting apparatus which concerns on 1st Embodiment of this invention. It is a circuit diagram which shows one specific example of the 2nd control power supply circuit in the lighting | lighting apparatus which concerns on 1st Embodiment of this invention. It is a waveform diagram which shows typically the output voltage of a capacitor when the AC voltage is stopped. It is a circuit diagram which shows one specific example of the electronic device control circuit in the lighting | lighting apparatus which concerns on 1st Embodiment of this invention. It is a waveform diagram which shows typically switching the ON / OFF state of the power supply to an electronic device based on the interruption of the input of an AC voltage. It is a circuit block diagram which shows typically the basic structure of the lighting lighting device and the lighting device which concerns on 2nd Embodiment of this invention. It is a circuit block diagram which shows typically the basic structure of the lighting lighting device and the lighting device which concerns on 3rd Embodiment of this invention. It is a schematic diagram which shows the arrangement layout inside the lighting apparatus which concerns on 4th Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Each of the embodiments described below shows a preferred specific example of the present invention. Therefore, the numerical values, shapes, materials, components, arrangement positions of the components, connection forms, etc. shown in the following embodiments are examples and are not intended to limit the present invention. Therefore, among the components in the following embodiments, the components not described in the aspect showing the highest level concept of the present invention will be described as arbitrary components.

It should be noted that each figure is a schematic view and is not necessarily exactly illustrated. Further, in each figure, the same reference numerals are given to substantially the same or evenly equal configurations, and duplicate description will be omitted. Further, in the circuit block diagram and the circuit diagram, only the main elements and characteristic elements and their connection relationships may be shown, and other elements and their connection relationships may be omitted. Unless otherwise specified, the parameter values of the circuit elements can be arbitrarily selected depending on the situation.

(First Embodiment)
First, the basic configuration of the lighting device 1 and the lighting device 100 according to the first embodiment of the present invention will be described with reference to FIG. FIG. 1 is a circuit block diagram schematically showing a basic configuration of a lighting device 1 and a lighting device 100 according to a first embodiment of the present invention.

As shown in FIG. 1, the lighting device 1 receives electric power from the power source 2, outputs electric power to the light source 3, and controls the electric power supply to the electronic device 4. That is, the lighting device 100 includes a lighting lighting device 1, a light source 3 that lights based on the output power of the lighting lighting device 1, and an electronic device 4 whose power supply is controlled by the lighting lighting device 1. Here, the power supply 2 is, for example, a commercial AC power supply. The input power from the power source 2 to the lighting device 1 can be turned ON / OFF according to, for example, ON / OFF of a switch (not shown). The light source 3 is typically an LED (light emitting diode element) that lights up based on a direct current voltage or a direct current. The electronic device 4 is, for example, a fan, and the fan is used, for example, to blow ions generated by an ion generator (not shown) into a room. The light source 3 and the electronic device 4 are not limited to the above examples, and can be arbitrarily changed depending on the situation.

As shown in FIG. 1, the illumination lighting device 1 has mainly the input terminal 10, the voltage conversion circuit 20, the first control power supply circuit 30, the capacitor C, the second control power supply circuit 40, and the like. It includes a first control circuit 50, a second control circuit 60, and an electronic device control circuit 70. Hereinafter, each configuration will be specifically described.

AC voltage is input to the input terminal 10 from the power supply 2. As shown in FIG. 1, the input terminal 10 includes, for example, three terminals N, H, and LOD. One end (input end) of each of the terminals N and H is connected to the power supply 2, and the other end (output end) of each of the terminals N and H supplies an AC voltage to the lighting device 1. Further, one end of the terminal LOD is connected to the electronic device 4, and the other end of the terminal LOD and the other end (output end) of the terminal H are connected to the electronic device control circuit 70, respectively. ..

The voltage conversion circuit 20 converts the AC voltage input from the input terminal 10 into a voltage and supplies it to the light source 3. For example, the voltage conversion circuit 20 may include a rectifier circuit and a step-down circuit (specific illustration is omitted). The rectifier circuit rectifies the input AC voltage to a DC voltage, and the step-down circuit steps down the rectified DC voltage to a voltage suitable for the light source 3. The rectifier circuit can use various conventional circuit configurations, for example, a full-wave rectifier circuit that generates a full-wave waveform. The step-down circuit can utilize various conventional circuit configurations, for example, a step-down chopper circuit including a switch transistor, a diode, and an inductor.

However, the voltage conversion circuit 20 is not limited to this, and may perform only AC-DC conversion or may perform only voltage conversion. The voltage conversion is not limited to step-down, and the output voltage may be boosted as needed. Further, FIG. 1 shows an example in which the voltage conversion circuit 20 is connected to the output terminals of the terminals N and H of the input terminal 10, but the present invention is not limited to this, and the interference resistance of the circuit is improved. A filter circuit or the like may be connected between the input terminal 10 and the voltage conversion circuit 20.

The first control power supply circuit 30 generates a first constant voltage VCS1, for example, a DC voltage of 19V, from the input AC voltage. As shown in FIG. 1, the first control power supply circuit 30 is connected to the input terminal of the terminal H of the input terminal 10, and is supplied with power by the AC voltage input from the input terminal 10. As a result, it is possible to generate a control voltage for supplying electric power to the control circuit in the subsequent stage with a simple circuit configuration. However, the connection relationship of the first control power supply circuit 30 is not limited to this. For example, when another circuit such as a filter circuit is provided after the input terminal 10, the first control power supply circuit 30 is a filter. It may be connected to the output side of another circuit such as a circuit.

The first control power supply circuit 30 includes a linear regulator circuit that generates a control voltage. FIG. 2 is a circuit diagram showing one specific example of the first control power supply circuit 30 in the lighting device 1 according to the first embodiment of the present invention. As shown in FIG. 2, the first control power supply circuit 30 includes a transistor Q2 operating in a saturation region and a Zener diode ZD1 as a constant voltage diode, and generates a first constant voltage VCS1 as an output voltage. In the transistor Q2, each of the base and the collector is connected to the input voltage Vin via a resistor, and the emitter outputs the first constant voltage VCS1. In the Zener diode ZD1, the cathode is connected to the base of the transistor and the anode is connected to the ground. As a result, the yield voltage of the Zener diode ZD1 is supplied as a stable first constant voltage VCS1. The components included in the first control power supply circuit 30 and their connection relationships are not limited to the above examples, and various changes can be made as needed. For example, FIG. 2 shows an example in which the transistor is an NPN transistor, but the present invention is not limited to this, and a PNP transistor, FET, or the like may be used.

In the prior art, in a regulator circuit that generates a control voltage using an AC voltage input from a commercial power source, a large number of resistors are often provided to step down the voltage. However, a large amount of energy is consumed by a plurality of resistors in the regulator circuit, and the power consumption of the entire device increases. Here, by configuring a linear regulator circuit with a transistor operating in the saturation region and a constant voltage diode, a stable control voltage is supplied, power consumption is reduced, and the energy efficiency of the entire device is improved. be able to.

The explanation will be continued by returning to FIG. The capacitor C is connected to the output side of the first control power supply circuit 30 and receives the output voltage VCS1 of the first control power supply circuit 30. The capacitor C is used to continue supplying power to the subsequent circuit when the AC voltage input from the input terminal 10 is stopped. The capacitor C is, for example, an electrolytic capacitor, and the number thereof is not limited to one, and may be two or more capacitors connected in parallel. The details of the capacitor C will be described later.

The second control power supply circuit 40 is connected to the subsequent stage of the capacitor C and steps down the output voltage of the capacitor C. For example, when the output voltage of the capacitor C is equal to the first constant voltage VCS1 (for example, a DC voltage of 19 V), the second control power supply circuit 40 steps down the first constant voltage VCS1 to make a second. Generates a constant voltage VCS2 (eg, a DC voltage of 5V).

An example of the second control power supply circuit 40 will be specifically described. FIG. 3 is a circuit diagram showing one specific example of the second control power supply circuit 40 in the lighting device 1 according to the first embodiment of the present invention. As shown in FIG. 3, the second control power supply circuit 40 includes the three-terminal regulator IC3 and is lower than the first constant voltage VCS1 (for example, 19V) which is the output voltage of the first control power supply circuit 30. (For example, 5V) is generated as an output voltage. Specifically, in the three-terminal regulator IC3, the input terminal IN is connected to the capacitor C to receive the input voltage VCS1, the output terminal OUT outputs the second constant voltage VCS2, and the ground terminal GND is connected to the ground. There is. As a result, it is possible to realize a step-down of the control voltage and a stable voltage output with a simple circuit configuration. The components included in the second control power supply circuit 40 and their connection relationships are not limited to the above examples, and various changes can be made as needed. For example, another step-down circuit may be used instead of the three-terminal regulator IC3.

The explanation will be continued by returning to FIG. The first control circuit 50 operates by the output voltage (VCC1) of the first control power supply circuit 30 and is used for controlling the voltage conversion circuit 20. The first control circuit 50 is composed of, for example, an IC, its power supply terminal is connected to the output side of the first control power supply circuit 30, and power is supplied by the first constant voltage VCS1. Further, the first control circuit 50 outputs the first control signal to the voltage conversion circuit 20 in response to a user operation, a detection signal for the environment, or the like, and outputs the voltage supplied from the voltage conversion circuit 20 to the light source 3. The light source 3 is dimmed or the like.

For example, when the voltage conversion circuit 20 includes a step-down chopper circuit including a switch transistor, a diode, and an inductor as described above, the first control circuit 50 generates a PWM signal as a first control signal to convert the voltage. Output to the switch transistor of the circuit 20. By changing the duty of the generated PWM signal, the ON / OFF of the switch transistor is controlled to change the dimming setting of the light source 3.

The second control circuit 60 operates by the output voltage (VCC2) of the second control power supply circuit 40, and can detect the input state of the AC voltage input from the input terminal 10. The second control circuit 60 includes, for example, a microcomputer capable of generating a control signal for the electronic device control circuit 70. As shown in the INT signal in FIG. 1, the microcomputer monitors the interruption of the AC voltage input from the terminal H of the input terminal 10 and generates a second control signal corresponding to the interruption to the electronic device control circuit 70. Output. For example, when it is detected that the interruption time of the AC voltage input from the input terminal 10 is within a predetermined time (for example, 1.7 s), the microcomputer changes the second control signal to be generated, for example, the first. Switch the high / low level of the control signal of 2. This makes it possible to monitor the interruption of the AC voltage input and generate the corresponding control signal with a simple circuit configuration.

However, when the second control circuit 60 monitors the interruption of the AC voltage input from the input terminal 10, the output of the first control power supply circuit 30 is after the AC voltage input from the input terminal 10 is stopped. Stops. At this time, in order to supply power to the second control circuit 60, the discharge of the capacitor C is used to supply an input voltage to the second control power supply circuit 40. The capacitor C preferably has a capacitance value capable of maintaining the operation of the second control circuit 60 within a period of a predetermined time or longer in a state where the AC voltage input from the input terminal 10 is stopped.

FIG. 4 is a waveform diagram schematically showing the output voltage of the capacitor when the AC voltage is stopped. As shown in FIG. 4, at time t1, the input of the AC voltage is stopped, and the discharge of the capacitor C is used to start supplying electric power to the second control circuit 60 via the second control power supply circuit 40. The output voltage of the capacitor C gradually decreases as it is discharged, but the output voltage of the capacitor C causes the second control power supply circuit 40 within a predetermined time (for example, 1.7 s) or more after the AC voltage is stopped. It suffices as long as it is equal to or more than the minimum supply voltage for operating the second control circuit 60 normally through the system. Although the case where the voltage VCS2 (for example, 5V) is supplied to the second control circuit 60 for operation has been described above, the minimum operating voltage (for example, 4.5V) in which the second control circuit 60 is lower than the voltage VCS2 has been described. ) If a voltage higher than that is supplied, it may be possible to operate normally. In this case, the discharge of the capacitor C only needs to be able to maintain the supply of the above-mentioned minimum operating voltage to the second control circuit 60. When the time t2 is reached after the above-mentioned predetermined time has passed from the time t1, the input of the AC voltage is restored. Then, the output voltage of the capacitor C returns to the first constant voltage VCS1. From time t1 to time t2, the output voltage of the capacitor C is maintained above the minimum supply voltage, and the second control circuit 60 can operate normally.

As a result, even when the input of the AC voltage of the power supply 2 is stopped, the normal operation of the second control circuit 60 can be maintained within a predetermined time. As a result, the second control circuit 60 detects whether or not the AC voltage of the power supply 2 has recovered within the above-mentioned predetermined time, so that the interruption time of the AC voltage input from the power supply 2 is the above-mentioned predetermined time. It is possible to detect that it is within the range and output a second control signal corresponding to it. Of course, when the input of the AC voltage of the power supply 2 is stopped, the power is not limited to being supplied to the second control circuit 60 via the second control power supply circuit 40 by using the capacitor C, and a battery or the like is used. It may be added or replaced with a battery or the like.

The electronic device control circuit 70 is connected to the electronic device 4 and switches the ON / OFF state of the supply of the AC voltage to the electronic device 4. As shown in FIG. 1, in the electronic device control circuit 70, one terminal is connected to the electronic device 4 via, for example, the terminal LOD of the input terminal 10, and the other terminal is connected to the terminal H of the input terminal 10. It is connected. That is, the terminal H of the input terminal 10 is connected to the electronic device 4 via the electronic device control circuit 70 as a common terminal that supplies power to the first control power supply circuit 30 and is connected to the electronic device control circuit 70. Has been done.

Further, the electronic device control circuit 70 further receives the second control signal output from the second control circuit 60, and turns the supply of the AC voltage to the electronic device 4 ON / OFF based on the second control signal. .. For example, when the second control circuit 60 detects that the interruption time of the AC voltage input from the power supply 2 is within a predetermined time as described above, the second control circuit 60 outputs the second control signal to the electronic device control circuit 70. Then, the electronic device control circuit 70 is made to switch the ON / OFF state of the supply of the AC voltage to the electronic device 4.

An example of the electronic device control circuit 70 will be specifically described. FIG. 5 is a circuit diagram showing one specific example of the electronic device control circuit 70 in the lighting device 1 according to the first embodiment of the present invention. As shown in FIG. 5, the electronic device control circuit 70 includes, for example, a photocoupler PT1 and a triac TR1. The terminal T11 of the photocoupler PT1 is connected to the output side of the second control power supply circuit 40, and the voltage VCS2 (for example, 5V) is input. The terminal T13 of the photocoupler PT1 is connected to the second control circuit 60, and the second control signal is input. The terminal T14 of the photocoupler PT1 is connected to the terminal T2 of the triac TR1. The terminal T16 of the photocoupler PT1 is connected to the terminal G of the triac TR1. Further, the terminal T1 of the triac TR1 is connected to the terminal H of the input terminal 10, and an AC voltage is input. The terminal T2 of the triac TR1 is connected to the terminal LOD of the input terminal 10 via an inductor, and is connected to the electronic device 4.

According to the above specific example of the electronic device control circuit 70, when the second control signal output from the second control circuit 60 to the terminal T13 of the photocoupler PT1 is at a low level, the terminal T11 of the photocoupler PT1 The potential difference between (high level VCS2) and the terminal T13 becomes high level, the diode in the photocoupler PT1 becomes ON, the terminal T14 and the terminal T16 become conductive, and the terminals T1 and T2 of the triac TR1 become conductive. Make the connection between and. As a result, in the electronic device control circuit 70, one end connected to the input terminal 10 and one end connected to the electronic device 4 become conductive, and the terminal H of the input terminal 10 connects the triac TR1 and the inductor. It conducts to the terminal LOD of the input terminal 10 through. In this case, the electronic device 4 operates by inputting an AC voltage.

Further, when the second control signal output from the second control circuit 60 to the terminal T13 of the photocoupler PT1 is at a high level, between the terminal T11 (high level VCS2) of the photocoupler PT1 and the terminal T13. The potential difference becomes low level, the diode in the photocoupler PT1 is turned off, and the conduction between the terminal T14 and the terminal T16 is stopped. The operation of the triac TR1 is stopped, and the continuity between the terminal T1 and the terminal T2 is stopped. As a result, in the electronic device control circuit 70, one end connected to the input terminal 10 and one end connected to the electronic device 4 are cut off, and the connection between the terminal H and the terminal LOD of the input terminal 10 is established. It is blocked. In this case, the power supply to the electronic device 4 is cut off, and the operation of the electronic device 4 is stopped.

For example, when the second control circuit 60 detects that the interruption time of the AC voltage input from the input terminal 10 is within a predetermined time, the second control circuit 60 outputs the second control to the photocoupler PT1 of the electronic device control circuit 70. By switching the high / low level of the signal and switching the ON / OFF state of the photocoupler PT1, the ON / OFF state of the triac TR1 of the electronic device control circuit 70 is switched, and the AC voltage is supplied to the electronic device 4. Switch the ON / OFF state. According to the above specific example of the electronic device control circuit 70, it is possible to switch the ON / OFF state of the supply of the AC voltage to the electronic device 4 based on the control signal of the second control circuit 60, and further, the photocoupler PT1 Can be used to separate the electronic device control portion and the light source control portion.

A specific description of switching the ON / OFF state of the power supply to the electronic device 4 based on the interruption of the AC voltage input will be described. FIG. 6 is a waveform diagram schematically showing switching the ON / OFF state of the power supply to the electronic device 4 based on the interruption of the AC voltage input. As shown in FIG. 6, at time ton1, the AC voltage is input from the power supply 2, and the detection signal (INT signal) input to the second control circuit 60 becomes a high level. At this time, it is assumed that the electronic device control circuit 70 is in the ON state and an AC voltage is supplied to the electronic device 4. After that, at time toff1, the input AC voltage from the power supply 2 is stopped, the detection signal becomes low level, and the second control circuit 60 sets the detection signal to high level within a predetermined time (for example, 1.7 s). It monitors whether or not it has become, that is, whether or not the input AC voltage from the power supply 2 has recovered within a predetermined time.

It is assumed that the input AC voltage from the power supply 2 recovers at the subsequent time ton2, and the interval between toff1 and ton2 is shorter than the above-mentioned scheduled time (for example, 1.7s). Therefore, the second control circuit 60 outputs the second control signal to the electronic device control circuit 70, switches the electronic device control circuit 70 from the ON state to the OFF state, and supplies the AC voltage to the electronic device 4. It is blocked.

It is assumed that the input AC voltage from the power supply 2 stops at the subsequent time toff2, recovers to the subsequent time ton3, and the interval between toff2 and ton3 is shorter than the above scheduled time (for example, 1.7s). .. Therefore, the second control circuit 60 outputs the second control signal to the electronic device control circuit 70, switches the electronic device control circuit 70 from the OFF state to the ON state, and supplies the AC voltage to the electronic device 4. It is conducted.

Here, the power supply 2 is connected to, for example, an operation unit (not shown) as a wall switch, and the input AC voltage from the power supply 2 to the input terminal 10 is turned ON / OFF according to the operation of the operation unit by the user. It is possible to become. For example, when the wall switch is pressed by the user, the input AC voltage from the power supply 2 to the input terminal 10 is turned off. After that, the wall switch returns in response to the end of the operation by the user, and the input AC voltage from the power supply 2 to the input terminal 10 is turned on again. That is, the input AC voltage from the power supply 2 to the input terminal 10 is interrupted for a certain period of time in response to one operation of the wall switch by the user. Here, an arbitrary predetermined time (for example, 1.7 s) is appropriately set according to the operation habit of the user, and the interruption of the input AC voltage for the predetermined time or less is caused by the user operation to the operation unit. You may judge that there is. As a result, by monitoring that the interruption time of the input AC voltage is within a predetermined time, it is possible to switch whether or not to supply electric power to the electronic device 4 according to the user operation.

For example, when the electronic device 4 is a fan, the electronic device control circuit 70 can switch the ON / OFF state of the supply of AC voltage to the fan so as to operate or stop the fan according to the user operation. can. As a result, the fan can be operated or stopped in response to a simple switch operation on the power supply 2, which leads to an improvement in convenience.

According to the illumination lighting device 1 and the illumination device 100 of the present embodiment, the light source 3 is made by using a combination of a linear regulator circuit, a capacitor, a step-down circuit for the output voltage of the capacitor, and the like, and by standardizing and coordinating the circuit configuration. The control voltage can be provided to a plurality of control circuits including the control circuit for the device 4 and the control circuit for the electronic device 4, and the electronic device 4 can be operated or stopped in response to a simple switch operation on the power supply 2.

In the prior art, a control voltage is supplied to the control circuit by using an auxiliary transformer, a flyback circuit, an IPD circuit, or the like. However, the circuit configuration of these modes is complicated, the EMC is poor, and the mounting space on the board is relatively large. The lighting device 1 and the lighting device 100 of the present embodiment can realize reduction of component cost, reduction of power consumption, and reduction of device size as compared with the above-mentioned conventional technology.

(Second Embodiment)
In the present embodiment, in addition to the first embodiment, the rectifier circuit 80 is added in front of the first control power supply circuit 30. The description of the same or equivalent configuration as that of the first embodiment will be omitted or simplified.

FIG. 7 is a circuit block diagram schematically showing the basic configurations of the lighting device 1A and the lighting device 100 according to the second embodiment of the present invention. As shown in FIG. 7, the illumination lighting device 1A of the present embodiment adds a rectifier circuit 80 that rectifies the input AC voltage to the subsequent stage of the input terminal 10 with respect to the illumination lighting device 1 of the first embodiment. It differs in that. The rectifier circuit 80 can use various conventional circuit configurations, for example, a full-wave rectifier circuit that generates a full-wave waveform. Further, FIG. 7 shows an example in which the rectifier circuit 80 is connected to each output terminal of the terminals N and H of the input terminal 10, but the present invention is not limited to this, and the input is not limited to this so as to improve the interference resistance of the circuit. A filter circuit or the like may be connected between the terminal 10 and the rectifier circuit 80.

A first control power supply circuit 30 is connected to the output side of the rectifier circuit 80. The first control power supply circuit 30 generates a control voltage from the DC voltage rectified by the rectifier circuit 80. As a result, it is possible to generate a control voltage for supplying electric power to the subsequent control circuit from the rectified DC voltage.

Further, a voltage conversion circuit 20 is connected to the output side of the rectifier circuit 80. As a result, when it is necessary to provide a rectifier circuit in the voltage conversion circuit 20 described in the first embodiment, in the present embodiment, the voltage conversion circuit 20 can use the DC voltage after rectification from the rectifier circuit 80. Therefore, it is not necessary to separately provide a rectifier circuit in the voltage conversion circuit 20, and the circuit configuration is further reduced.

(Third Embodiment)
In the present embodiment, a third control signal is added in addition to the first embodiment or the second embodiment. The description of the same or equivalent configuration as that of the first embodiment or the second embodiment will be omitted or simplified.

FIG. 8 is a circuit block diagram schematically showing the basic configurations of the lighting device 1B and the lighting device 100 according to the third embodiment of the present invention. As shown in FIG. 8, in the lighting device 1B of the present embodiment, the second control circuit 60B outputs a second control signal to the electronic device control circuit 70 with respect to the lighting device 1 of the first embodiment. The difference is that a third control signal is output to the first control circuit 50B. The first control circuit 50B generates a first control signal based on the input third control signal and outputs the first control signal to the voltage conversion circuit 20. The present embodiment is applicable not only to the first embodiment but also to other embodiments of the present invention.

For example, the second control circuit 60B receives the detection signal of the human detection sensor or the illuminance sensor (not shown), outputs the corresponding third control signal, and the first control circuit 50B has the third control circuit 50B. Based on the control signal, the PWM duty in the first control signal is changed. For example, when the person detection sensor detects that there is a person around, or the illuminance sensor detects that the illuminance is too low, the PWM duty is increased based on the above control to increase the brightness of the light source 3. Dimming so that Thereby, the light source 3 can be controlled based on another detection signal.

(Fourth Embodiment)
In this embodiment, an example of the arrangement layout inside the lighting device 100 will be described. It should be noted that this embodiment can be applied to any of the above-mentioned first to third embodiments, and any of the above-mentioned first to third embodiments can be referred to for the circuit configuration. The description is omitted.

FIG. 9 is a schematic view showing an internal layout of the lighting device 100 according to the fourth embodiment of the present invention. In FIG. 9, the illuminating device 100 is observed from a direction orthogonal to the wall surface on which the illuminating device 100 is arranged, and other parts such as the cover (not shown) and the light source 3 (shown by the dotted line) of the illuminating device 100 are removed. ing. As shown in FIG. 9, since the circuit configuration of the lighting device 1 is reduced and reduced in size as compared with the conventional case, the lighting device 1 is mounted on the wall surface on which the lighting device 100 is arranged together with the electronic device 4 (for example, a fan). Even if they are arranged on the same plane parallel to the electronic device 4, a sufficient arrangement space for the electronic device 4 can be secured. As a result, the overall size of the lighting device 100 can be reduced while securing a space for arranging the electronic device 4.

Although some embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and the following modifications can be made.

In each of the above embodiments, an example in which the light source 3 is composed of an LED light emitting element has been described. However, as the light emitting element, a semiconductor light emitting element such as a semiconductor laser, an EL element such as an organic EL (Electroluminescence) or an inorganic EL, or another solid light emitting element may be used.

In addition, there are also forms obtained by applying various modifications to each embodiment that can be conceived by those skilled in the art, and forms realized by arbitrarily combining the components and functions of each embodiment without departing from the spirit of the present invention. Included in the present invention.

1, 1A, 1B lighting device, 2 power supply, 3 light source, 4 electronic equipment, 10 input terminals, 20 voltage conversion circuit, 30 first control power supply circuit, C capacitor, 40 second control power supply circuit, 50, 50B 1st control circuit, 60, 60B 2nd control circuit, 70 electronic device control circuit, 80 rectifier circuit, 100 lighting device

Claims (10)

Input terminal for inputting AC voltage and
A voltage conversion circuit that converts AC voltage into voltage and supplies it to the light source,
A first control power supply circuit consisting of a linear regulator circuit that generates a control voltage,
A capacitor that receives the output voltage of the first control power supply circuit and
A second control power supply circuit that steps down the output voltage of the capacitor,
A first control circuit that operates by the output voltage of the first control power supply circuit and controls the voltage conversion circuit, and a first control circuit.
A second control circuit that operates by the output voltage of the second control power supply circuit and can detect the input state of the AC voltage input from the input terminal.
An electronic device is connected, and the electronic device control circuit for switching the ON / OFF state of the supply of AC voltage to the electronic device is provided.
One terminal included in the input terminal supplies power to the first control power supply circuit and is connected to the electronic device via the electronic device control circuit as a common terminal connected to the electronic device control circuit. Has been
When the second control circuit detects that the interruption time of the input AC voltage is within a predetermined time, the second control circuit switches the ON / OFF state of the supply of the AC voltage to the electronic device to the electronic device control circuit. Lighting lighting device to make. The electronic device is a fan
The lighting device according to claim 1, wherein the electronic device control circuit switches an ON / OFF state of supplying an AC voltage to the fan so as to operate or stop the fan. The second control circuit includes a microcomputer capable of generating a control signal for the electronic device control circuit, and the microcomputer generates the microcomputer when it detects that the interruption time of the input AC voltage is within a predetermined time. The lighting device according to claim 1 or 2, which changes the control signal. The lighting device according to any one of claims 1 to 3, wherein the first control power supply circuit generates the control voltage from an AC voltage. Further equipped with a rectifier circuit that rectifies the input AC voltage,
The lighting device according to any one of claims 1 to 3, wherein the first control power supply circuit generates the control voltage from a DC voltage rectified by the rectifier circuit. The lighting device according to any one of claims 1 to 5, wherein the first control power supply circuit includes a transistor operating in a saturation region and a constant voltage diode, and generates a first constant voltage as an output voltage. .. Any one of claims 1 to 6, wherein the capacitor has a capacitance value capable of maintaining the operation of the second control circuit within a period of the predetermined time or more in a state where the input of the AC voltage is stopped. The lighting device according to the item. The second control power supply circuit includes a three-terminal regulator and generates a second constant voltage lower than the first constant voltage which is the output voltage of the first control power supply circuit as an output voltage. The lighting device according to any one of the above items. The electronic device control circuit includes a photocoupler and a triac.
When the second control circuit detects that the interruption time of the input AC voltage is within a predetermined time, the second control circuit switches the high / low level of the control signal output to the photocoupler to turn on the photocoupler. The illumination lighting device according to any one of claims 1 to 8, wherein the ON / OFF state of the triac is switched by switching the / OFF state, and the ON / OFF state of the supply of AC voltage to the electronic device is switched. .. The lighting device according to any one of claims 1 to 9,
A light source that lights up based on the output power of the voltage conversion circuit of the lighting lighting device, and
A lighting device including the electronic device whose power supply is controlled by the electronic device control circuit of the lighting lighting device.

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