JPH03246888A - Illumination control device - Google Patents

Abstract

PURPOSE:To perform dim-lighting with a small case by providing a control circuit feeding the drive power of illumination lamps via a contact at the time of full-lighting and feeding it via a semiconductor control element at the time of dim-lighting. CONSTITUTION:The signal from a remote control device nearby is received by a light receiving section 1, for example, and a control circuit 2 decodes the signal and controls illumination lamps based on the decoded result. If the control signal from the remote control device is a full-lighting signal, the illumination lamps are set to the full-lighting state. If it is a dim-lighting signal, a triode AC switch 5 is driven via a photo-coupler 4, the drive power is fed to the illumination lamps via the triode AC switch 5, and the illumination lamps are set to the dim-lighting state. Since the drive power is fed via a semiconductor control element at the time of dim-lighting, dim-lighting can be performed with a small case.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a lighting control device that turns on lighting lights at full brightness and dimming, and particularly relates to a lighting control device that is small and suitable for lighting control in a residence. be.

[Conventional technology]

In conventional lighting control devices, for example, when controlling lighting lights on stairs in a house, the lighting lights are turned on and off using a mechanical switch. This mechanical switch is a contact switch, and supplies driving power to the illumination lamp through its contacts. In this case, the illumination lights are either fully lit or turned off. In addition, relays (*electrical appliances) may be used as contact switches, and in this case, the lighting lamps are automatically turned on/off by control signals from an external remote control device or signals from various sensors, etc. can be done.

In addition, when lighting the lighting lamp in a dimmed manner (half-lighting, etc.), a semiconductor control element such as a triac is used, and driving power is supplied to the lighting lamp via this main conductor control element.

In this case, since the semiconductor control element has heat loss, heat radiation is required to control a large load (lighting lamp).

[Problem to be solved by the invention]

Conventional lighting control devices are configured as described above, and drive power is supplied to the lighting lamps through contacts or through semiconductor control elements, so the casing is There were problems with the size of the body or the inability to control the lighting.

In other words, when using a relay contact, it is not possible to obtain a dimming state, and when using a semiconductor control element, it is not possible to obtain a dimming state, or because of heat loss, it is difficult to control a large load. It requires heat dissipation, which is impossible in a small case.

The present invention has been made in view of these problems, and an object of the present invention is to provide a lighting control device that has a small housing and is capable of dimming and lighting.

[Means to solve the problem]

The lighting control device of the present invention is a lighting control device for lighting a lighting lamp at full brightness and dimming, in which drive power for the lighting lamp is supplied through a contact when the lighting is turned on at full brightness, and is supplied to a semiconductor control element when lighting is dimmed. It is equipped with a control circuit that supplies power via the

[Effect]

In the lighting control device of the present invention, driving power for the illumination lamp is supplied through the contact when the lighting is turned on at full brightness, and is supplied through the non-contact semiconductor control element when the lighting is dimmed.

(Embodiment) FIG. 1 is a circuit diagram of a lighting control device according to an embodiment of the present invention. In the figure, 1 is a light receiving unit that receives infrared signal light from a human body sensor, illuminance sensor, or remote control device (not shown) and converts it into a negative signal; This control circuit is configured by a microcomputer and controls the corresponding illumination lamp into three states: full lighting, dimmed lighting (half lighting), and off.This control circuit 2 also has a relay 3 on the output side. and a photocoupler 4 are connected to the output side of the photocoupler 4, and the gate of a triac 5, which is a semiconductor control element, is connected to the output side of the photocoupler 4.The control circuit 2 allows the drive power from the commercial AC power source to be fully connected to the lighting lamp. When the light is turned on, it is supplied through the contact 3a of the relay 3, and when the light is dimmed, it is supplied through the triac 5 without contact.6 is for adjusting the illumination lamp by a phase control method. This is a phase detection circuit for lighting the light, and its detection output is input to the control circuit 2. 7 is a constant voltage circuit that supplies DC power to each part including the control circuit 2.

In the lighting control device configured as described above, for example, when a control signal for a lighting lamp is transmitted by operating a switch on a remote control device at hand, this signal is received by the light receiving section 1 and input to the control circuit 2. Ru. The control circuit 2 decodes the signal and controls the illumination lamp based on the decoding result.

At this time, if the control signal from the remote control device is a signal to turn on all lights, the control circuit 2 drives the relay 3, supplies driving power to the illumination lamp through its contact 3a, and turns on the illumination lamp to full light. state. Further, if the control signal from the remote control device is a dimming lighting signal, the control circuit 2 drives the triac 5 through the photocoupler 4, supplies driving power to the lighting lamp via the triac 5,
Set the lighting to dimming mode. At this time, the detection signal from the phase detection circuit 6 allows the lighting lamp to be controlled to a stable desired dimming state. Note that if the control signal from the remote control device is a light-off signal, the control circuit 2 stops driving the relay 3 and the triac 5 to turn off the illumination light.

In this way, the contact 3a of the relay 3 and the triac 5 are connected in parallel, and driving power is supplied to the illumination lamp through the contact 3a when the lights are on and through the triac 5 when the lights are dimmed. That is, the contact 3a of the relay 3 is used during full-light lighting, which has the largest load, and the triac 5 is used for control when dimmed lighting, which has the smallest load. Therefore, the heat generation peculiar to semiconductor elements can be minimized, and the heat dissipation structure can be made smaller. Therefore, dimming lighting can be realized using a small housing.

Note that although the above embodiment shows the case where dimmed lighting immediately changes to full-bright lighting, fade-in or fade-out control may be performed. Also, contact 3a of relay 3
The triac 5 is not limited to this, and other contacts and semiconductor elements may be used.

(Effects of the Invention) As described above, according to the present invention, the drive power for the illumination lamp is supplied through the contact when the lights are turned on, and through the semiconductor control element when the lights are dimmed. Moreover, it has the effect of making it possible to control the lighting.

[Brief explanation of drawings]

Figure 1 shows the structure of this invention. FIG. 1... Light receiving section 2... Control circuit 3...Relay 3a・・・Contact 4... Hotokabura 5・・・Triac 6... Phase detection circuit 7... Constant voltage circuit (semiconductor control element) Lighting control bag according to embodiments and

Claims (1)

[Claims] A lighting control device for lighting a lighting lamp at full brightness and dimmed lighting, including a control circuit that supplies driving power for the lighting lamp through a contact when the lighting is turned on at full brightness and through a semiconductor control element when turned on at dimming. A lighting control device characterized by: