JP5874054B2 - Amplifier and lighting system using the same - Google Patents

Description

  The present invention relates to an amplifier and an illumination system using the amplifier.

  Conventionally, a rykon (light control) capable of individually dimming a plurality of light sources has been provided. According to this lycon, for example, an incandescent lamp can be dimmed by outputting an AC voltage whose phase is controlled with respect to a lighting apparatus that uses an incandescent lamp as a light source (hereinafter referred to as an incandescent lamp apparatus). A dimming signal is output to a lighting fixture using an LED as a light source (hereinafter referred to as an LED fixture) or a lighting fixture using a fluorescent lamp as a light source (hereinafter referred to as a fluorescent lamp fixture). Can be dimmed. By the way, in such a lycon, when dimming by phase control, since the output capacity for each light source is limited, it has not been possible to deal with light sources exceeding the limit value. Further, when dimming with a dimming signal, the number of light sources that can be connected is limited due to the relationship with the attenuation rate of the dimming signal, and therefore, it is impossible to connect light sources exceeding the limit number.

  In recent years, therefore, amplifiers have been provided that amplify the output from the rykon so as to cope with the above-described problems (see Non-Patent Documents 1 and 2, for example). The amplifier shown in Non-Patent Document 1 amplifies a dimming signal output from a lycon, and can thereby connect LED fixtures and fluorescent lamp fixtures exceeding the limited number. In addition, the amplifier shown in Non-Patent Document 2 amplifies an alternating voltage output from a rykon, and thereby an incandescent lamp apparatus exceeding a limit value can be connected.

"Booster 1 circuit type (Product number: NQL10021) Installation manual, instruction manual", Panasonic Electric Works Co., Ltd., July 22, 2010 "Booster 1 circuit type (Part No .: NQL10001) Installation Manual", Panasonic Electric Works Co., Ltd., July 22, 2010

  However, since the amplifiers shown in Non-Patent Documents 1 and 2 above only amplify either the AC voltage or the dimming signal, the operator must select the amplifier according to the type of the light source. It takes time and effort. In addition, when light sources corresponding to each dimming method coexist, the operator has to prepare both amplifiers.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide an amplifier that can handle both a dimming method based on phase control and a dimming method based on a dimming signal, and illumination using the same. To provide a system.

  An amplifier according to the present invention includes a first dimmer that outputs an AC voltage controlled to a phase angle corresponding to an operation, and a first lighting fixture that performs dimming and lighting using the phase-controlled AC voltage from the first dimmer. Or between the second dimmer that outputs an on-duty dimming signal corresponding to the dimming rate and the second lighting fixture that is dimmed by the dimming signal from the second dimmer A first input unit to which a phase-controlled AC voltage is input when the first dimmer is connected, and a second dimmer is connected to the dimmer. A second input unit to which a signal is input, and when the first dimmer is connected to the first input unit, the phase-controlled AC voltage is amplified and output to the first lighting fixture, and the second input unit And an output control unit that amplifies the dimming signal input to and outputs it to the second luminaire.

  In this amplifier, when the second dimmer is connected to the first input unit and the second input unit, the second dimmer outputs an AC voltage not subjected to phase control to the first input unit, and 2. When fully lighting the lighting fixture, output a dimming signal with a duty ratio of around 0% to the second input unit, and the output control unit amplifies the AC voltage that is not phase-controlled and outputs it to the second lighting fixture. When an AC voltage that is not phase-controlled is not input to the first input unit, it is preferable to stop the AC output to the second lighting fixture.

  In this amplifier, it is also preferable that the output control unit stops the AC output to the second lighting fixture until the first time has elapsed from the start of power feeding from the external power supply to the output control unit.

  Further, in this amplifier, the output control unit is connected to the second luminaire at the start of power feeding from the external power supply to the output control unit until a second time elapses after the dimming signal is input to the second input unit. It is also preferable to stop the AC output.

  The illumination system of the present invention includes at least the amplifier, a second dimmer, and a second luminaire.

  According to the present invention, the first dimmer can be dimmed by phase control by connecting the first dimmer to the first input unit and connecting the first luminaire to the output control unit. By connecting the optical device to the second input unit and connecting the second luminaire to the output control unit, the second luminaire can be dimmed by the dimming signal. It is possible to obtain an amplifier that can handle both dimming methods using signals and an illumination system using the amplifier. As a result, there is no need to select an amplifier according to the type of light source, so that an effect such as saving labor of an operator can be obtained.

It is a schematic block diagram which shows an example of the illumination system of this embodiment. It is a schematic block diagram which shows the other example same as the above. (A)-(c) is a graph for demonstrating the operation | movement same as the above. (A), (b) is a timing chart for demonstrating an operation | movement same as the above.

  Hereinafter, embodiments of an amplifier and an illumination system will be described with reference to FIGS.

  FIG. 1 is a schematic configuration diagram illustrating an example of an illumination system according to the present embodiment. In the present invention, the lighting system means a system including at least one lighting fixture and connected so that the lighting fixture can be appropriately controlled. As shown in FIG. 1, the lighting system of the present embodiment includes a first dimmer 1A, a second dimmer 1B, an amplifier 2, a first lighting fixture 3A, and a second lighting fixture 3B. .

  The first dimmer 1A outputs an alternating voltage controlled to a phase angle corresponding to the operation, and controls lighting of the luminaire at a dimming level corresponding to the phase angle. For example, when the first lighting fixture 3A uses an incandescent lamp as a light source, the incandescent lamp is turned on at a dimming level corresponding to the phase angle by directly supplying a phase-controlled AC voltage to the incandescent lamp. In addition, when the first lighting fixture 3A uses an LED as a light source, a conversion circuit that converts a phase-controlled AC voltage into a dimming signal is provided in the first lighting fixture 3A, thereby adjusting the phase angle according to the phase angle. The LED can be lit at the light level.

  The second dimmer 1B is for outputting an on-duty dimming signal corresponding to the dimming rate. As shown in FIG. 2, in the present embodiment, the second dimmer 1 </ b> B has an up switch 11 for raising the dimming rate and a down switch 12 for lowering the dimming rate. The dimming rate is set according to the operation of the switches 11 and 12. The second dimmer 1B outputs an on-duty dimming signal corresponding to the dimming rate, and the second lighting fixture 3B uses a light source (fluorescent lamp, LED, etc.) at a dimming level according to the dimming signal. ) Is lit.

  The amplifier 2 is a device for amplifying the AC voltage output from the first dimmer 1A and the dimming signal output from the second dimmer 1B. As shown in FIG. 1, the amplifier 2 includes a power input circuit (first input unit) 23 to which the AC voltage from the first dimmer 1A is input and the dimmer from the second dimmer 1B. And a DA converter circuit (second input unit) 22 to which a signal is input. The amplifier 2 includes a power output circuit 24 that generates an AC voltage to be output to the first lighting fixture 3A based on the AC voltage input to the power input circuit 23, and a control circuit 21 that performs general control. .

  The power input circuit 23 obtains an energization time corresponding to the phase angle based on the AC voltage input from the first dimmer 1A (for example, an energization time until the zero cross in a half cycle of the AC voltage), The obtained energization time is output to the control circuit 21. The connection terminals T1 and T1 are connected to the input end of the power input circuit 23, and the first dimmer 1A and the connection terminals T1 and T1 are connected by the two-core electric wires L1 and L1. Yes.

  The DA conversion circuit 22 is accumulated in a capacitor of an RC circuit (not shown) provided at an input portion of the DA conversion circuit 22 based on the dimming signal (DUTY signal) input from the second dimmer 1B. A voltage value is created and output to the control circuit 21. Further, the connection terminals T3 and T3 are connected to the input end of the DA conversion circuit 22, and the second dimmer 1B and the connection terminals T3 and T3 are connected by the two-core signal lines L3 and L3. Yes.

  The power output circuit 24 outputs an AC voltage controlled to the same phase angle as the AC voltage output from the first dimmer 1A in accordance with a control signal from the control circuit 21. Further, connection terminals T2 and T2 are connected to the output end of the power output circuit 24, and the first lighting fixture 3A and the connection terminals T2 and T2 are connected by two-core power lines L2 and L2. . In the present embodiment, the output capacity of the power output circuit 24 is larger than the output capacity of the first dimmer 1A. For example, when the output capacity of the first dimmer 1A is 2A, the output capacity of the power output circuit 24 is 3A.

  The control circuit 21 creates a control signal based on the energization time input from the power input circuit 23 and controls the power output circuit 24 with this control signal. The control circuit 21 creates a DUTY signal based on the voltage value input from the DA conversion circuit 22, and outputs the DUTY signal to the second lighting fixture 3B via the connection terminals T4 and T4. In the present embodiment, the DUTY signal output from the control circuit 21 has a larger capacity than the DUTY signal output from the second dimmer 1B, and the second lighting fixture 3B is controlled only by the second dimmer 1B. The number of connected devices can be increased compared to the case. Here, in the present embodiment, the control circuit 21 and the power supply output circuit 24 constitute an output control unit.

  Next, the operation of the lighting system will be described. When the user operates an operation unit (not shown) of the first dimmer 1A, an AC voltage controlled to a phase angle corresponding to the operation is output from the first dimmer 1A. When the AC voltage from the first dimmer 1A is input, the power input circuit 23 of the amplifier 2 obtains the energization time based on the AC voltage, and outputs the obtained energization time to the control circuit 21. . The control circuit 21 creates a control signal based on the energization time input from the power input circuit 23 and outputs this control signal to the power output circuit 24. The power output circuit 24 outputs an AC voltage controlled to the same phase angle as the phase angle of the AC voltage output from the first dimmer 1A in accordance with the control signal input from the control circuit 21. The first lighting fixture 3 </ b> A is lit at a dimming level corresponding to the phase angle by the AC voltage output from the power output circuit 24.

  Further, when the user operates the up switch 11 or the down switch 12 of the second dimmer 1B to set the dimming rate, an on-duty dimming signal corresponding to the dimming rate is output from the second dimmer 1B. Is done. When the dimming signal from the second dimmer 1B is input, the DA conversion circuit 22 of the amplifier 2 obtains the on-duty from the dimming signal, and creates the voltage value that means the obtained on-duty. To the control circuit 21. The control circuit 21 creates a DUTY signal based on the voltage value input from the DA conversion circuit 22, and outputs this DUTY signal to the second lighting fixture 3B. And the 2nd lighting fixture 3B lights at the light control level according to the DUTY signal output from the control circuit 21. FIG.

  Thus, according to this example, the first dimmer 1A is connected to the power input circuit 23 via the connection terminals T1 and T1, and the first lighting fixture 3A is connected to the power output circuit 24 via the connection terminals T2 and T2. By connecting to, the first lighting fixture 3A can be dimmed by phase control. Further, the second dimmer 1B is connected to the DA conversion circuit 22 via the connection terminals T3 and T3, and the second lighting fixture 3B is connected to the control circuit 21 via the connection terminals T4 and T4. The lighting fixture 3B can be dimmed by the dimming signal. That is, by using the amplifier 2 of this example, it is possible to obtain an illumination system that supports both the light control method using phase control and the light control method using a light control signal. Further, by using the amplifier 2 of this example, it is possible to increase the capacity of the alternating voltage output from the first dimmer 1A and the dimming signal output from the second dimmer 1B. Dimming control can be performed on the first lighting fixture 3A exceeding the limit value of the optical device 1A and the second lighting fixture 3B exceeding the limit number of the second dimmer 1B.

  By the way, when dimming control is performed using the second dimmer 1B and the second lighting fixture 3B, it is general that the light source is fully turned on (FULL lighting) when no dimming signal is input. For this reason, when power supply to the second dimmer 1B is stopped, the dimming signal is not output from the second dimmer 1B, and the second lighting fixture 3B is completely turned on. The above-described amplifier 2 of the present embodiment can also solve the above-mentioned problems, and will be specifically described below with reference to FIG.

  FIG. 2 is a schematic configuration diagram illustrating another example of the illumination system of the present embodiment, and this illumination system includes a second dimmer 1B, an amplifier 2, and a second illumination fixture 3B. The second dimmer 1B is connected to the power input circuit 23 of the amplifier 2 via the two-core power lines L1 and L1 and the connection terminals T1 and T1, and the two-core signal lines L3 and L3 and the connection terminals T3 and T3. To the D / A converter circuit 22. The second lighting fixture 3B is connected to the power output circuit 24 via the two-core power lines L2 and L2 and the connection terminals T2 and T2, and via the two-core signal lines L4 and L4 and the connection terminals T4 and T4. It is connected to the control circuit 21.

  In this lighting system, when the dimming signal output from the second dimmer 1B is input to the DA conversion circuit 22, the DA conversion circuit 22 obtains the on-duty from the dimming signal, and means the on-duty. The voltage value is created and output to the control circuit 21. The control circuit 21 creates a DUTY signal based on the voltage value input from the DA conversion circuit 22, and outputs this DUTY signal to the second lighting fixture 3B. Further, an AC voltage that is not phase-controlled is output from the second dimmer 1B, and this AC voltage is input to the power input circuit 23 of the amplifier 2. The power input circuit 23 obtains the energization time corresponding to the phase angle based on the alternating voltage input from the second dimmer 1B, and outputs the obtained energization time to the control circuit 21. The control circuit 21 creates a control signal based on the energization time input from the power input circuit 23 and outputs the control signal to the power output circuit 24. The power output circuit 24 outputs an AC voltage according to the control signal input from the control circuit 21 and supplies power to the second lighting fixture 3B. In the present embodiment, the output capacity of the power output circuit 24 is larger than the output capacity of the second dimmer 1B. For example, when the output capacity of the second dimmer 1B is 2A, the output capacity of the power output circuit 24 is 3A.

  Fig.3 (a)-FIG.3 (c) are the graphs for demonstrating operation | movement of the illumination system of this example. FIG. 3A is a graph showing the relationship between the operation steps of the second dimmer 1B (changes between 0 ° and 270 °) and the duty ratio of the dimming signal, and is provided in the second dimmer 1B. Depending on the setting state of the set switch 13 (see FIG. 2), the setting switch 13 changes linearly as indicated by a solid line a or a solid line b. In the case of the solid line a, the duty ratio is 80% when the operation step is 0 °, and the duty ratio is 0% when the operation step is 270 °. In the case of the solid line b, the duty ratio is 100% when the operation step is 0 °, and the duty ratio is 0% when the operation step is 270 °.

  FIG. 3B is a graph showing the relationship between the DA value (digital signal value) output from the DA conversion circuit 22 and the duty ratio. As shown by the solid line c, the duty ratio increases as the DA value increases. FIG. 3C is a graph showing the relationship between the duty ratio and the dimming rate. The solid line d corresponds to the solid line a in FIG. 3A, and the solid line e is the solid line in FIG. It corresponds to b. According to this graph, in the case of the solid line d, the dimming rate is 100% when the duty ratio is 0%, and the light is turned off when the duty ratio is 80%. In the case of the solid line e, the dimming rate is 100% when the duty ratio is 0%, and the light is turned off when the duty ratio is 100%. That is, according to this lighting system, when the operation step is set to 0 ° by the second dimmer 1B, the second lighting fixture 3B is turned off, and when the operation step is set to 270 °, the second lighting fixture 3B. All lights up.

  Here, the control circuit 21 of the amplifier 2 of this example stops the AC output to the second lighting fixture 3B when the AC voltage is not input from the second dimmer 1B to the power input circuit 23, that is, the power output circuit 24. AC output from is stopped. Thereby, even when the power supply to the second dimmer 1B is stopped as described above, the AC lighting output to the second lighting fixture 3B is stopped to prevent the second lighting fixture 3B from being fully lit. be able to.

  Further, as described above, since it is common to turn on the light source completely (FULL lighting) when there is no signal to which the dimming signal is not input, for example, for the rise of the power supplies of the second dimmer 1B and the amplifier 2 When the input of the dimming signal is delayed, a section in which the duty ratio of the dimming signal is 0% occurs, and as a result, the second lighting fixture 3B is instantly fully lit. Therefore, in the amplifier 2 of this example, the AC output to the second lighting fixture 3B is stopped until the first time T1 elapses after the power is turned on to the second dimmer 1B and the amplifier 2. This will be specifically described below with reference to FIG. 4 (a) and FIG. 4 (b).

  When power is supplied to the second dimmer 1B and the amplifier 2 at time t1, the control circuit 21 controls the power output circuit 24 at time t3 when the first time T1 has elapsed from time t1. An alternating voltage is output to the 2nd lighting fixture 3B. The first time T1 is preferably set to a time from when the power is turned on to the second dimmer 1B and the amplifier 2 until the dimming signal input to the control circuit 21 is stabilized. The section in which the duty ratio of the dimming signal is 0% can be eliminated at the time of rising, and the second lighting apparatus 3B can be prevented from being fully turned on instantaneously.

  In addition, at time t2 (t2> t1) after the power is turned on, time t3 when the second time T2 has elapsed since the dimming signal (DUTY signal) from the second dimmer 1B is input to the DA converter circuit 22. In this case, an AC voltage may be output from the power supply output circuit 24, and similarly, a section in which the duty ratio of the dimming signal is 0% at the time of power-on can be eliminated, and the second lighting fixture 3B can be instantaneously operated. It is possible to avoid turning on all the lights.

  In the present embodiment, the first dimmer 1A corresponding to the dimming method based on phase control and the second dimmer 1B corresponding to the dimming method based on the dimming signal are provided separately. The first dimmer 1 </ b> A and the second dimmer 1 </ b> B may be provided integrally as in the lycon shown in the example. However, in this case, it is preferable to provide a display circuit (not shown) in the amplifier 2 in order to suppress erroneous wiring. For example, when trying to construct a plurality of systems of the lighting system shown in FIG. 2, if the output of the first dimmer 1A is erroneously connected to the connection terminals T1 and T1 of the amplifier to be connected to another system, the first dimming is performed. The AC voltage phase-controlled by the device 1 </ b> A is input to the control circuit 21 through the power input circuit 23. In this case, a dimming signal may be input from the second dimmer 1 </ b> B to the control circuit 21 via the DA conversion circuit 22. In other words, in this case, the phase-controlled AC voltage and the dimming signal are input to the control circuit 21, and both the phase control and the dimming signal indicate dimming. It is preferable to determine that there is an error and display an error on the display circuit. Thereby, it is possible to notify the worker that there is an incorrect wiring, and further, the worker who has confirmed the error display corrects the incorrect wiring, so that a normally wired lighting system can be constructed.

1A 1st dimmer 1B 2nd dimmer 2 Amplifier 3A 1st lighting fixture 3B 2nd lighting fixture 21 Control circuit (output control part)
22 DA converter circuit (second input section)
23 Power input circuit (first input part)
24 Power supply output circuit (output control unit)

Claims (5)

Between a first dimmer that outputs an AC voltage controlled to a phase angle according to an operation and a first lighting fixture that is dimmed and lit by an AC voltage that is phase-controlled from the first dimmer, or Between the second dimmer that outputs an on-duty dimming signal corresponding to the dimming rate and the second lighting fixture that is dimmed by the dimming signal from the second dimmer. An amplifier mounted,
A first input unit to which the phase-controlled AC voltage is input when the first dimmer is connected;
A second input unit to which the second dimmer is connected and the dimming signal is input;
When the first dimmer is connected to the first input unit, the phase-controlled AC voltage is amplified and output to the first lighting fixture, and the dimming input to the second input unit is performed. An output controller for amplifying an optical signal and outputting the amplified signal to the second lighting fixture;
An amplifier comprising: When the second dimmer is connected to the first input unit and the second input unit,
The second dimmer outputs an AC voltage not subjected to phase control to the first input unit, and outputs a dimming signal having a duty ratio of about 0% when fully lighting the second lighting fixture. 2 output to the input section,
The output control unit amplifies the AC voltage not subjected to phase control and outputs the amplified AC voltage to the second lighting fixture. When the AC voltage not phase-controlled is not input to the first input portion, the output control unit supplies the second lighting fixture to the second lighting fixture. 2. The amplifier according to claim 1, wherein the AC output is stopped.   3. The amplifier according to claim 2, wherein the output control unit stops AC output to the second lighting fixture until a first time elapses from the start of power supply from an external power source to the output control unit.   The output control unit is configured to supply power to the second lighting fixture until a second time elapses after the dimming signal is input to the second input unit at the start of power supply from an external power source to the output control unit. 3. The amplifier according to claim 2, wherein the AC output is stopped.   An illumination system comprising at least the amplifier according to any one of claims 1 to 4, the second dimmer, and the second lighting fixture.

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