KR200280993Y1 - Apparatus for driving lamp - Google Patents

Abstract

The present invention relates to a lamp driving device for controlling the lighting operation of the lamp according to the automatic, on and off mode, according to the lamp driving device of the present invention, the key operation portion in the automatic mode through the light emitting diode and the two through holes The photoelectric conversion element is exposed to the outside, the light emitting diode and the photoelectric conversion element is not exposed to the outside in the on mode and the light paths are blocked from each other, the light emitting diode and the photoelectric conversion element is not exposed to the outside in the off mode The light paths are formed to each other through the waveguide, and the control circuit means includes a power supply circuit rectifying and smoothing an AC power source and a light emitting diode, a photoelectric conversion element having a variable resistance value according to ambient illumination, the power supply circuit and A bias voltage output unit connected to the photoelectric conversion element in series and outputting a bias voltage which varies according to the ambient illuminance; When the self-detection below the first set illuminance is detected, the trigger circuit generates a trigger signal based on the output voltage of the bias voltage output unit, and supplies and cuts power to the lamp lighting circuit based on the trigger signal output from the trigger circuit unit. The trigger circuit lowers the output voltage of the bias voltage output unit during the on-operation of the switching means so that the trigger circuit generates a trigger signal when the photoelectric conversion element detects an abnormality of the second set illuminance set higher than the first set illuminance. It is characterized in that it comprises a hysteresis circuit having a hysteresis width so as not to output, by having a hysteresis of a predetermined width to turn on and off operation to ensure a stable lighting state of the lamp and to automatically operate the lamp according to the ambient brightness Lights and lights out of course manually It has an excellent effect of turning on and off the lamp.

Description

Lamp driving device {APPARATUS FOR DRIVING LAMP}

The present invention relates to a lamp driving device for controlling the lighting and turning off operation of various lamps, such as fluorescent lamps and incandescent lamps, and more particularly, to a lamp driving device for controlling the lighting operation of the lamp according to the automatic, on and off modes.

In general, a method of controlling lamps such as fluorescent lamps and incandescent lamps installed in homes, offices, roads, etc., is mainly used by a manual operation by a person.

Recently, a circuit has been developed and used to automatically turn on a lamp when a detected illuminance is less than a set illuminance after detecting peripheral illuminance using a photoelectric conversion element whose resistance value varies depending on the intensity of incident light.

U.S. Patent Nos. 5, 439 and 373 are known as a technique for automatically turning on and off a lamp in accordance with ambient light. According to this patent, a photoelectric conversion element and a resistor are connected in series to output a high level bias voltage when the peripheral illuminance is lower than a set illuminance, and a trigger signal is generated when the transistor, a switching element, is turned on according to the output bias voltage. In response to this trigger signal, the thyristor is brought into a conductive state to supply power to the lamp to be turned on.

However, in the conventional technique, when the lamp is turned on because the ambient illumination is below the set illuminance, the light of the lamp is incident on the photoelectric conversion element, and the lamp is turned off again, and when the lamp is turned off, the photoelectric conversion element is again turned on. An error was detected that the setting illuminance was detected and the lamp was repeatedly turned on.

Therefore, in order to suppress the occurrence of the error, the applicant sets a wide hysteresis width in Utility Model Registration Application No. 2000-0004982 so that the lamp is automatically turned on so that the lamp does not turn off again after the illumination is turned below the set illuminance. / Off circuit was proposed.

However, the automatic lighting / lighting circuit of the lamp is limited to the operation of the automatic mode in which the lighting is turned on and off automatically according to the brightness of the surroundings, and thus there is a problem in that the lighting cannot be turned on and off manually according to the user's will.

Therefore, the present invention has been made to solve the above problems, the object of the present invention is to automatically turn on and off the lamp according to the brightness of the surroundings, as well as a lamp driving device that can be turned on and off the lamp manually. To provide.

In order to achieve the above object, the lamp driving apparatus according to the present invention has a waveguide formed at a lower portion thereof, and two through holes are formed thereon, and a key operating portion for selecting an automatic, on and off mode of the lamp, and the key operating portion. A control circuit means for controlling the driving of the lamp by a key operation and including a light emitting diode and a photoelectric conversion element, wherein the key operation portion is exposed to the outside through the two through holes in the automatic mode. In the on mode, the light emitting diodes and the photoelectric conversion elements are not exposed to the outside and light paths are blocked from each other. In the off mode, the light emitting diodes and the photoelectric conversion elements are not exposed to the outside but the light paths are not exposed to each other through the waveguide. Is formed; The control circuit means rectifies and smoothes an AC power source, a power supply circuit including a light emitting diode, a photoelectric conversion element whose resistance value is changed according to ambient illumination, a series connection with the power supply circuit and the photoelectric conversion element, and peripheral illumination A bias voltage output unit for outputting a bias voltage which is variable according to the above, a trigger circuit which generates a trigger signal based on an output voltage of the bias voltage output unit when the photoelectric conversion element detects the first setting illuminance or less, and Switching means for supplying and cutting off power to a lamp lighting circuit based on a trigger signal output from a trigger circuit portion, and stepping down an output voltage of the bias voltage output portion when the switching means is turned on so that the photoelectric conversion element is set to the first setting; The trigger circuit generates a trigger signal when an abnormality in the second set illuminance set higher than the illuminance is detected. A it characterized in that it comprises a hysteresis circuit to have a hysteresis width to not print.

According to another aspect of the present invention, a lamp driving apparatus includes a key operating portion having a waveguide formed at a lower portion thereof, and configured to select an automatic, on, and off mode of the lamp, and a key operation portion of the lamp operated by the key operation of the key operating portion. And a control circuit means for controlling driving and including a light emitting diode and a photoelectric conversion element, wherein the key operation portion is exposed to the outside only in the auto mode, and only the light emitting diode is exposed outward in the on mode. In the mode, the light emitting diode and the photoelectric conversion element are not exposed to the outside but light paths are formed through the waveguide; The control circuit means rectifies and smoothes an AC power source, a power supply circuit including a light emitting diode, a photoelectric conversion element whose resistance value is changed according to ambient illumination, a series connection with the power supply circuit and the photoelectric conversion element, and peripheral illumination A bias voltage output unit for outputting a bias voltage which is variable according to the above, a trigger circuit which generates a trigger signal based on an output voltage of the bias voltage output unit when the photoelectric conversion element detects the first setting illuminance or less, and Switching means for supplying and cutting off power to a lamp lighting circuit based on a trigger signal output from a trigger circuit portion, and stepping down an output voltage of the bias voltage output portion when the switching means is turned on so that the photoelectric conversion element is set to the first setting; The trigger circuit generates a trigger signal when an abnormality in the second set illuminance set higher than the illuminance is detected. A it characterized in that it comprises a hysteresis circuit to have a hysteresis width to not print.

1 is a detailed view of a control circuit means in the lamp driving apparatus according to the present invention,

2 is a view showing an example of a hysteresis width of lighting and lighting according to the control circuit means of FIG. 1;

3 is a detailed view of a control circuit means according to another embodiment of the lamp driving apparatus according to the present invention;

Figure 4 is a detailed view of the control circuit means according to another embodiment in the lamp driving apparatus according to the present invention,

5 is a schematic front view of the lamp driving apparatus according to the embodiment of the present invention,

6 is a schematic view of a key operation unit during the on-operation in the lamp driving device of FIG. 5;

7 is a schematic view of a key operation unit during the off operation in the lamp driving device of FIG. 5;

8 is a schematic view of a key operation unit of the lamp driving apparatus according to another embodiment of the present invention;

9 is a schematic diagram of a key operation unit in the automatic mode of the lamp driving device of FIG. 8;

10 is a schematic view of a key operation unit during the on operation of the lamp driving device of FIG. 8;

11 is a schematic view of a key operation unit of the lamp driving apparatus according to another embodiment of the present invention;

12 is a schematic diagram of a key operation unit in the automatic mode of the lamp driving device of FIG. 11;

FIG. 13 is a schematic view of a key operating unit in the on operation of the lamp driving device of FIG.

* Description of the main parts of the drawings

1 lamp body 2 lamp

3a, 3b, 3c: Key control unit 10: Lamp lighting circuit

12: switching means 14: power supply circuit

16: bias voltage output unit 18: trigger circuit

100: light emitting diode 110: photoelectric conversion element

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

5 is a schematic front view of a lamp driving apparatus according to an embodiment of the present invention, Figure 1 is a detailed view of the control circuit means in the lamp driving apparatus according to the present invention, Figure 8 is an embodiment of the present invention Fig. 11 is a schematic diagram of a horizontally movable key control part of a lamp driving device, and Fig. 11 is a schematic view of another horizontally movable key control part of a lamp driving device according to an embodiment of the present invention, and the same reference numerals are assigned to the same parts.

Lamp driving apparatus according to an embodiment of the present invention, as shown in Figs. 1, 5, 8, and 11, the key operating portion (3a, 3b, 3c) and the control circuit means.

The key operating portions 3a and 3b are formed with a waveguide (not shown) at the bottom and two through holes, and there are two types of keys for selecting the automatic, on and off modes of the lamp. There are rotary types as shown in Fig. 5 and horizontal moving types as shown in Fig. 8. In both types, the light emitting diodes 100 and the photoelectric conversion element 110 are exposed to the outside through two through holes in the automatic mode (see FIGS. 5 and 9), and the light emitting diodes 100 and the photoelectric conversion in the on mode. The light paths of each other are blocked while the device 110 is not exposed to the outside (see FIGS. 6 and 10), and the light emitting diode 100 and the photoelectric conversion device 110 are not exposed to the outside in the off mode. Light paths are formed through each other (see FIGS. 7 and 8).

Another horizontal movement type key operation unit 3c is horizontally movable, and only the photoelectric conversion element 110 is exposed to the outside in the automatic mode (see FIG. 12), and only the light emitting diode 100 is exposed to the outside in the on mode (FIG. 12). 13), the light emitting diodes 100 and the photoelectric conversion element 110 are not exposed to the outside in the off mode, but light paths are formed with each other through the waveguide formed under the key operation portion (see FIG. 11).

As shown in FIG. 1, the control circuit means includes a power supply circuit 14, a photoelectric conversion element 110, a bias voltage output unit 16, a trigger circuit 18, a switching means 12, and a hysteresis circuit 20. ).

In the power supply circuit 14, a diode D2, a resistor R1, and a light emitting diode 100 are connected in series, and a constant voltage diode ZD and a capacitor C2 are connected in parallel to receive and rectify AC power. And a circuit for smoothing and generating a DC power source.

The photoelectric conversion element 110 is a device in which a resistance value is changed according to incident light, and the resistance is variable in inverse proportion to a peripheral illuminance.

The bias voltage output unit 16 is a type in which the output terminal of the power supply circuit 14 is connected to the ground resistor R3 and the ground capacitor C3 through the photoelectric conversion element 110 and the resistor R2. The bias voltage of a predetermined level is output in accordance with the resistance value of the device 110.

In the trigger circuit 18, the output terminal of the bias voltage output section 16 is connected to the base of the transistor Q1, and the output terminal of the power supply circuit 14 is connected to the collector of the transistor Q1 through the resistor R4. The connection point is connected to the ground capacitor C4 and the gate of the thyristor SCR of the switching means 12, and the on-off operation is performed according to the bias voltage output from the bias voltage output section 16, and the bias voltage is The thyristor SCR is triggered when it is below a predetermined level.

Another embodiment of the trigger circuit 18 may be configured by the inverter INV1 as shown in FIG. In another embodiment of the present invention configured as described above, when the peripheral illuminance is less than or equal to the first set illuminance BR1, the threshold voltage is applied to the input terminal of the inverter INV1, so that the inverter INV1 outputs a high potential and switches. The thyristor SCR of the means 12 is brought into a conductive state so that the lamp of the lamp lighting circuit 10 is turned on. On the other hand, when the peripheral illuminance is greater than or equal to the second set illuminance BR2, since the threshold voltage is applied to the input terminal of the inverter INV1, the inverter INV1 outputs a low potential so that the thyristor SCR of the switching means 12 is reduced. ) Is cut off and the lamp of the lamp lighting circuit 10 is turned off.

The switching means 12 serves to supply and cut off power to the lamp lighting circuit 10 on the basis of the trigger signal output from the trigger circuit 18, and the constitution of the capacitor C1 with respect to the lamp lighting circuit 10. ) And the thyristor SCR are connected in series, and the diode D1 is connected in parallel in the reverse direction with respect to the thyristor SCR.

The hysteresis circuit 20 steps down the output voltage of the bias voltage output unit 16 when the trigger circuit 18 generates a trigger signal and the lamp of the lamp lighting circuit 10 is turned on, so that the photoelectric conversion element 110 The circuit for causing the hysteresis circuit 20 to have a hysteresis width so that the trigger circuit 18 does not output the trigger signal when detecting an abnormality of the second set illuminance set higher than the first set illuminance. The output terminal of the unit 16 is connected to the base of the transistor Q1, and the collector of the transistor Q2 is connected to the resistor R2 (R3) and the capacitor C3 of the bias voltage output unit 16 through the resistor R5. Is connected to the connection point of.

The operation of the hysteresis circuit 20 will be described. As illustrated in FIG. 2, when the lamp of the lamp lighting circuit 10 is turned off, when the peripheral illuminance is less than or equal to the first set illuminance BR1, the transistor Q1 is turned off while the die Lister SCR is in a conducting state. When the lamp is turned on and the lamp is turned on, when the peripheral illuminance is greater than or equal to the second set illuminance BR2, the transistor Q1 is turned on and the thyristor SCR is turned off to turn off the lamp. Here, the first setting illuminance BR1 for turning on the lamp is set to a value of the resistors R2 and R3, and the second setting illuminance BR2 is set to the resistor R5 while the first setting illuminance BR1 is set. The hysteresis width BR2-BR1 is changed to the values of the resistors R2, R3, and R5 as set to the value of. In the above description, the resistor R5 has a fixed resistance value as an example, but the hysteresis width can be arbitrarily adjusted by the user when the resistor R5 is used as a variable resistor.

Another embodiment of the hysteresis circuit 20 is a form in which an inverter INV2, a resistor R5, and a reverse diode D3 are connected in series as shown in FIG. According to the embodiment comprised in this way, when the peripheral illuminance becomes below 1st set illuminance BR1, the inverter INV1 outputs a high potential, and the thyristor SCR of the switching means 12 will be in a conductive state, and the lamp When the lamp of the lighting circuit 10 is turned on, the inverter INV2 outputs a low potential, and the resistor R5 is grounded through the output terminal of the inverter INV2, thereby reducing the output voltage of the bias voltage output unit 16. Will be lowered. In this state, when the peripheral illuminance becomes equal to or greater than the second set illuminance BR2, the threshold voltage is applied to the input terminal of the inverter INV1, so that the inverter INV1 outputs a low potential, and the switching means 12 The thyristor SCR is turned off and the lamp of the lamp lighting circuit 10 is turned off, the inverter INV2 outputs a high potential so that the resistor R5 is not grounded and the bias voltage output unit 16 The output voltage rises.

The operation of the lamp driving apparatus of the present invention configured as described above will be described.

First, when the key manipulation units 3a, 3b, and 3c are set to the automatic mode (see FIGS. 5, 9, and 12), the light emitting diodes 100 and the photoelectric conversion element 110 are exposed to the outside or the photoelectric conversion element ( Only 110 is exposed to the outside. In this case, the resistance value of the photoelectric conversion element 110 varies according to the ambient illumination, and if the ambient illumination is high, the resistance value of the photoelectric conversion element 110 decreases, and the voltage applied to the base of the transistor Q1 is the bias voltage. When abnormal, the transistor Q1 is turned on, the DC power from the power supply circuit 14 flows to the ground through the resistor R4 and the transistor Q1, and the thyristors SCR of the switching means 12 Since the low potential is applied to the gate, the thyristor SCR is blocked, and the AC lamp AC is not applied to the lamp lighting circuit 10 so that the lamp is not turned on.

On the other hand, when the peripheral illumination is low and the resistance value of the photoelectric conversion element 110 becomes high, and the bias voltage in the transistor Q1 of the trigger circuit 18 falls, the transistor Q1 is turned off and the power supply circuit 14 Since the DC power supply from is applied as a trigger signal to the gate of the thyristor (SCR) of the switching means 12 through the resistor (R4), the die Lister (SCR) is triggered to be in a conductive state, the AC power is the thyristor (SCR) Is applied to the lamp lighting circuit 10 through the lamp is turned on.

In addition, when the key operating portions 3a, 3b, and 3c are set to the on mode (see FIGS. 6, 10, and 13), the light emitting diodes 100 and the photoelectric conversion elements 110 are not exposed to the outside or photoelectric conversions. While the elements 110 are not exposed to the outside, light paths are not formed with each other. Therefore, the photoelectric conversion element 110 does not detect the light, so that the switching means 12 is always in a conductive state, so that the AC power is applied to the lamp lighting circuit 10 so that the lamp continues to be turned on.

On the other hand, when the key operating portion (3a, 3b, 3c) is set to the off mode (Figs. 7, 8 and 11), the light emitting diodes 100 and the photoelectric conversion element 110 is not exposed to the outside and the handles The light path is set through the waveguide formed in the photoelectric conversion element 110 so that the light output from the light emitting diode 100 is always detected. Accordingly, the switching means 12 is turned off so that the lamp lighting circuit 10 ) Is not supplied with AC power, so the lamp continues to be off.

According to the lamp driving device of the present invention as described above, the key operating portion is exposed to the outside through the two through holes in the automatic mode, the light emitting diode and the photoelectric conversion element to the outside in the on mode The light paths are not exposed to each other and the light paths are blocked from each other. In the off mode, the light emitting diodes and the photoelectric conversion elements are not exposed to the outside, but light paths are formed through the waveguide, and the control circuit means rectifies and smoothes AC power. A power supply circuit including a light emitting diode, a photoelectric conversion element whose resistance is variable according to ambient illumination, and a bias voltage output which is connected in series with the power supply circuit and the photoelectric conversion element to output a bias voltage which varies according to the ambient illumination And when the photoelectric conversion element detects the first setting illuminance or less, the voltage is based on the output voltage of the bias voltage output section. A trigger circuit for generating a trigger signal, switching means for supplying and cutting off power to the lamp lighting circuit based on a trigger signal output from the trigger circuit portion, and stepping down the output voltage of the bias voltage output portion when the switching means is turned on. And a hysteresis circuit which has a hysteresis width so that the trigger circuit does not output a trigger signal when the photoelectric conversion element detects an abnormality of the second set illuminance set higher than the first set illuminance. And by having hysteresis of predetermined width for extinguishing operation, it ensures stable lighting condition of lamp and it turns on and off the lamp automatically according to the brightness of surroundings, and it is possible to turn on and off the lamp manually. Have.

Claims (4)

A waveguide is formed in the lower part, and two through holes are formed, and a key operation part for selecting an automatic, on and off mode of the lamp, a key operation part of the key operation part controls the driving of the lamp, and a light emitting diode and a photoelectric conversion. Including a control circuit means having an element, The key control unit is exposed to the outside of the light emitting diode and the photoelectric conversion element through the two through-holes in the automatic mode, the light emitting diode and the photoelectric conversion element is not exposed to the outside in the on mode, the light path is blocked from each other, In the off mode, the light emitting diode and the photoelectric conversion element are not exposed to the outside, but light paths are formed through the waveguide. The control circuit means A power supply circuit rectifying and smoothing AC power and including a light emitting diode; A photoelectric conversion element in which a resistance value is changed according to ambient illuminance; A bias voltage output unit connected to the power supply circuit and the photoelectric conversion element in series and outputting a bias voltage which is varied according to ambient illumination; A trigger circuit for generating a trigger signal based on an output voltage of the bias voltage output unit when the photoelectric conversion element detects the first set illuminance or less; Switching means for supplying and cutting off power to the lamp lighting circuit based on a trigger signal output from the trigger circuit section; During the on operation of the switching means, the output voltage of the bias voltage output unit is stepped down so that the trigger circuit does not output the trigger signal when the photoelectric conversion element detects an abnormality of the second set illuminance set higher than the first set illuminance. And a hysteresis circuit having a hysteresis width. The lamp driving device of claim 1, wherein the key operating part is a rotary type. The lamp driving apparatus of claim 1, wherein the key operating unit is horizontally movable. A control circuit means having a waveguide formed at a lower portion thereof to select an automatic, on and off mode of the lamp, and controlling the driving of the lamp by the key operation of the key operating portion and including a light emitting diode and a photoelectric conversion element. Including, The key control unit exposes only the photoelectric conversion elements to the outside in the automatic mode, only the light emitting diodes to the outside in the on mode, and the light emitting diodes and the photoelectric conversion elements are not exposed to the outside in the off mode, but through the waveguide The path of light is formed, The control circuit means A power supply circuit rectifying and smoothing AC power and including a light emitting diode; A photoelectric conversion element in which a resistance value is changed according to ambient illuminance; A bias voltage output unit connected to the power supply circuit and the photoelectric conversion element in series and outputting a bias voltage which is varied according to ambient illumination; A trigger circuit for generating a trigger signal based on an output voltage of the bias voltage output unit when the photoelectric conversion element detects the first set illuminance or less; Switching means for supplying and cutting off power to the lamp lighting circuit based on a trigger signal output from the trigger circuit section; During the on operation of the switching means, the output voltage of the bias voltage output unit is stepped down so that the trigger circuit does not output the trigger signal when the photoelectric conversion element detects an abnormality of the second set illuminance set higher than the first set illuminance. And a hysteresis circuit having a hysteresis width.