JPS63146097A - Phase controller for advertising and decorated lamp - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to IH, a phase control for advertising and decorative lights, in which phase control is performed objectively and stepwise.

Conventional outdoor advertising and decorative lights: neon, fluorescent lights,
The main sources are those that flicker, such as incandescent lights, and those that violate the A/F point, and in recent years, due to the development of stop groove technology, automatic phase control devices can easily be torn apart. and is used in some places.

However, conventional flashing ones and 1. The ones that last the tongue and the bottom have been used for a long time, so there are few new developments, and the ones that automatically control the phase are... Apart from being used indoors and outdoors, 1) when used outdoors as advertising and decorative lights, there are currently few that are satisfactory in terms of gradual dimming and 2) eye-catching. As an outdoor advertising and decorative light: Well, it's not used very often.

In order to solve the above-mentioned drawbacks, the present invention has been made to: (1) automatically perform phase-based grounding in a stepwise manner; We are committed to providing high performance, long life equipment.

Embodiments of the present invention will be described below with reference to the drawings.

What is shown in Figures 1 and 2 is a conventional manual stand-up device in which a load 5 and a triac element (triac, 4) are connected in series and connected to an alternating current source AC. The primary side of the transformer 1 is connected to the AC power supply AC, and the secondary side is connected to the AC input of the aftereffect rectifier circuit 2.The current limiting resistor R1 and the Zener diode ZD are connected in series, and the It is connected to the DC output of the wave straightening circuit 2. The time-limiting resistor VRT and the time-limiting capacitor CT are connected in series, and the current limiting resistor R
1 and the connection point P1 of the terminal ZD and the negative pole P2, respectively. The emitter E of the tri-element (uniform transistor, hereinafter abbreviated as UJT) 3 is connected to the connection point P3 between the timer resistor VRT and the timer capacitor CT, and the base B2 is connected to the connection point P1 via the base resistor R2. The base B1 is connected to the negative pole P2+- through the primary side of the pulse transformer PT, and the secondary side of the pulse transformer PT is connected between the gate G of the control element (TRIAC) 4 and the terminal T1. There is.

When the power is turned on, this circuit connects to the trapezoid &
occurs, and the time constant circuit and the trigger element (UJT) 3f are combined, so the trigger element (UJT) 3 is connected to the time-limited resistor V.
It oscillates in synchronization with the AC power supply, with a time constant depending on RT and the time capacitor CTj°2, and is controlled by the pulse transformer FT (
2) Since the phase of the load 5 is controlled by driving the element (TRIAC) 4, the load 5 can be dimmed arbitrarily by changing the control value 7 of the time storage resistor VRT. Figure 2, Figure 3, Figure 4, Section 5, Section 1. This shows an embodiment of the present invention, which includes a transformer 1, a full-wave rectifier circuit 2, a trigger element (UJT) 3, a control element (TRIAC) 4, and a load ( The wiring for the light bulb, ) 5, current control diode ξ resistor R1, Zener diode ZD, pulse transformer PT, pace resistor R2, etc. is exactly the same as that shown in the first section, so the explanation will be omitted.

Next, the first embodiment of the present invention shown in FIG. 2 will be explained. In FIG.
TO, RTI, RT2, RT3 are divided into 1, and the time □ - 艮 low resistance TO is connected in series with the time capacitor CT and connected to the connection points P1 and P2, respectively, and the time □ - 艮 resistance TO is connected to the connection points P1 and P2, respectively, and the time □ - 艮 resistance TO is CT connection piece, P3: Well, the bird element (U
, J T ) 3 emitters E (: connect the analog switch ASI, with the resistors RTI, RT2, RT3,
AS2 and AS3 are connected in series (: each connected set is connected in parallel, one is connected to the connection point P1, the other is connected to the connection voice, P3
are connected to each. Divide resistance\'RT by time: 1 hit, time 3 resistance RT○, RTI, RT2
, RT3 are all connected in parallel, so if you look at the time capacitor CT, time:'', the time resistance RT Oi2,
RT ○<RTn, RTO>RT *1 RTO
= RT n (n = 1 to 3) and no matter how much resistor RTn is connected, the combined resistance will decrease. , each time-limited resistor RTn according to the purpose of use.
All you have to do is set the value of .

The value of the resistance RT○ when becoming the basic sense is set to only the timed resistance RT○, and the phase control is carried out by the time constant with the timed capacitor fCT. ! In the case of a 5-power double bulb with a load (preheat the nifilanoant to prevent the light from burning), the Abcog switch A s 1, AS21..7
Each control input of S3 has a base resistor BRI, B
They are connected to drivers D1, D2, and D3 via H3 and BH3, respectively. 770 Guswitch ASI, A
S2, AS 3: Well, a P-NP type bipolar transistor is used as the switching element to allow sufficient base current to flow, and is used as an on/off switch. 6 is an oscillation circuit, which generates a square wave oscillates, and the single wave number can be changed arbitrarily using a variable resistor ■R. 7 is the start pulse generation circuit that generates a pulse when =i=turns on.
8: Counter circuit until clock CK is oscillator circuit 6
The clear input CL is connected to the output of the start pulse generation circuit 7, and the outputs Q1 and Q2 are connected to the outputs of the drivers D1, D2, and D3.

It is connected. Driver D1, D2, D3 j'4
Both have built-in transistors, and the output Qn of the Kakunta circuit 8
The circuit is configured to amplify the self. The rectifier diode D and the smoothing capacitor C: are connected in series, and the 7 nodes of the diode D are connected. Connect to the connection point P2, connect it to the rectifier die and connect it to the bone capacitor CO contact point, constant voltage, 7) Obtain direct current DC, and connect it to the oscillation circuit 6.
, the start pulse generation circuit 7, the counter circuit 8, and the drivers D1, D2, and D3.

First embodiment of the present invention: Well, since the circuit is configured as described above, when the power is turned on, the start pulse generating circuit 7
, the output of the counter circuit 8 is QO: false note, and the oscillation circuit 6 oscillates a clock pulse at a constant period of one period, so the output of the counter circuit 8 starts from QO, Ql, Q2, Q3, Since the output state changes to QO, Ql, etc. around 1, the driver is driven accordingly to -1, Dl, D2, D3, -1, Dl..., and the analog switch changes to -1, D1, D2, D3, -1, Dl, etc. 1, ASI, AS2, AS3, -
1. The time-limited resistor RT is controlled sequentially as ASI...
O1RTI, RT2, RT3 and timed Contin-9-CT
By sequentially switching the time constant circuit depending on the circuit and changing the time constant, the triac element (U, J
The phase of the load (bulb) 5 is automatically controlled in a stepwise manner in continuous operation. This state is shown in voltage waveform diagrams in Figures 6, 7, and 8. When the count mode of 88 is up mode, it is as shown in FIG.
The result will be as shown in the figure.

Next, a second embodiment of the present invention shown in FIG. 3 will be described. The time resistor RT 01 and the time capacitor CT are connected in series, and the connection P3 is connected to the emitter E of the trigger element (UJT) 3, and the divided time resistors R'TI, RT2,
RT3, RT4 and Anacog switches ASI', AS2'
, AS3', AS 4', connected in series are connected in parallel with the time capacitor C, and analog switches ASI', AS2', AS3', AS 4' are connected in series.
, each control input has a base resistor BRI, BH3
, BH3, via BH3, driver D1, I) 2,
Connect the two outputs to each output of D3 and D4, and connect the driver D1.
, D2, D3, and D4 are the output Q of the counter circuit 8.
Connected to O1Q1, Q2, and Q3, respectively. Anacog switch, A, S1', AS2', AS3',
The AS 4' uses an NPN type bipolar transistor as a switching element to allow a sufficient base current to flow and is used as an on/off switch. Second
In the first embodiment shown in the figure: 1, the value of the timer resistor RTO is made sufficiently large, and the timer resistor RTO is
The other time-limiting resistors RTI, RT2, RT3 are connected to the analog switch A while minimizing the amount of charge flowing into T.
By sequentially connecting SI, AS2, and AS3 in parallel, the combined resistance is decreased and the amount of inflowing charge is increased sequentially to make the time constant step-like and two-component, and phase control is performed. However, in the second embodiment shown in FIG. 3, the time limit resistor RT○' is made sufficiently small to maximize the amount of charge flowing into the time limit capacitor CT from the electric current J. Timed resistors RTI, RT2, RT3, RT4
, Abcog switch ASi', AS2', AS3'
, A S 4', in series; by connecting the two,
By bypassing the charge flowing from the power supply through the time-limiting resistor RTO', the amount of charge flowing into the capacitor 9CTi2 is sequentially decreased and the time constant is changed. Similarly, the load 5 is automatically and continuously phase-controlled in a stepped manner. In the first embodiment and the second embodiment, an example was explained in which the switching elements of the analog switches ASn and ASn' were Nibyholla transistors.
It is also possible to use CR, switching diodes, etc.

Next, a third embodiment of the present invention shown in FIG. 4 will be described. The third embodiment has the time constant 1 of the first embodiment shown in FIG.
In the heat, Anakogunui, Chi AS1, AS2, AS
I replaced my 5, which was made up of a single element 3, with one that combines a light emitter (light-emitting diode) and a photoreceptor (phototransistor) into a single unit, commonly known as a photocoupler. timed resistor RTI, RT2, R
T3, the analog switch A S 11', A 3 Q
ll, A 33+1, C Each set connected in series with each bottom transistor is connected in parallel with the time 2 resistance RTO, Anacogus Inochi A 31'', A S 2'', A 33
The anode of each light emitting diode '+, is connected to the positive pole of the DC power supply via a common current limiting resistor RL, and the cathode of each light emitting diode is connected to the output of the driver D1, D2, D3, respectively. , D3 are respectively connected to the outputs Q1, Q2, and Q3 of the counter circuit 8.The operation of the third embodiment is such that the output Qn of the counter circuit 8 sequentially controls the driver Dn, and each analog switch AS
The current flowing through each of n generations of light-emitting diodes (1) is turned on and off, and the phototransistor is switched on and off via light, and the current flows from the power supply through the time-limited resistor RTn to the time-limited capacitor CT. By sequentially increasing and decreasing the amount of charge and changing the time constant, the phase of the load is automatically, continuously, and stepwise controlled as in the first embodiment.

Next, the fourth embodiment (1) of the present invention shown in FIG. 5 will be explained. In the time constant circuit of the second embodiment shown in FIG.
The analog switch ASn' consists of a single element;
A photocoupler consisting of transistors: 1 and 2.
Analog switch A S 1″, A S 2 people A
S 31', A S 4+1, in series with each pair of transistors (= connected in parallel with the time capacitor CT; two connected, analog switch, NS1'', A82 generation
The anode of each light emitting diode of 83″ and A34 is,
It is connected to each output of the drivers D1, D2, D3, and D4, and its cathode is connected to the negative pole via a common current control long resistor RL. Driver DI, D2, D3
, D4 are the outputs Q○, Ql, of the counter circuit 8.
Connected to Q2 and Q3, respectively. The operation of the fourth embodiment is such that the output Qn of the counter circuit 8 sequentially controls the driver Qn, turns on and on the current flowing through each light emitting diode of each analog switch A Sn'', and connects the phototransistor through light. During the on/off switching operation, the charge flows from the current source into the time capacitor CT through the time resistor RTO' and through the time resistor RTn.
By bypassing to the negative pole, the time constant is changed, and the phase of the load is automatically, continuously, and stepwise controlled as in the first embodiment.

Analog switch A3 in the third and fourth embodiments
n+1 uses an original photodiode as the light emitting body, and the photoreceptor j2 uses a phototransistor or a photocoupler. It is also conceivable to use a photo-SCR, Nido diode, CdS photoconductive element, etc. as the photoreceptor.

The embodiments are explained using a Tosoga element 1 unijunction transistor (UJT), a programmatic pull unijunction transistor (PtJT), and a programmable unijunction transistor (PtJT).
) or Pn Pn switching diodes, etc., can be used in the same way and may be used instead.

Although the embodiment uses a triac as the control element, other thyristors, SCRs, or SSSs may also be used.

The example describes a resistive load using a light bulb, but
The present invention automatically switches a time-limited number circuit based on a time-limited resistor and a time-displacement capacitor in order to perform phase control in a stepwise manner. It goes without saying that the present invention can also be applied to phase control circuits for inductive loads such as lights.

In the embodiment, only one group of analog switches is operated at all times, and the time constant is changed by sequentially moving them. , AS1+AS2+A
S3, ASI-1-AS2, etc. increases and decreases,
It is also conceivable to change the time constant.

In the embodiment, the change in angle of the eyes is set to 4 steps (although the explanation is based on 1 step, the number of steps may be increased or decreased depending on the purpose).

The present invention can change the illuminance of the light source continuously and in a stepwise manner, and also electronically performs the timing of the change, so it can be adjusted arbitrarily from fast to fast. This is a novel and varied phase side/distribution device for advertising lights and decorative lights.

In addition, in the present invention, when power is input, the output of the kakunta circuit 8 is set to Q○ so that the time constant starts from a large point, so the controlled phase angle also starts from a large point. In the case of a resistive load, by reducing the lassi currant, it is possible to prevent fracture support and deterioration of the cut-and-cut element.

Furthermore, the present invention has practical effects such as easy wiring and cost savings compared to conventional blinking devices (1) because the power source is controlled.

[Brief explanation of the drawing]

The first section is a circuit diagram of a conventional basic phase control device. Second
The figure is a circuit diagram showing a first embodiment of the present invention. FIG. 3 is a circuit diagram showing a second embodiment of the present invention. FIG. 4 is a circuit diagram showing a third embodiment of the present invention. FIG. 5 is a circuit diagram showing a fourth embodiment of the present invention. 6, 7, and 8 are voltage waveform diagrams of a load whose phase is controlled according to the present invention.

Claims (1)

[Claims] In a phase control device that performs full-wave rectification of alternating current and supplies a trapezoidal wave clipped with a Zener diode to a circuit composed of a timed resistor, a timed capacitor, and a trigger element, multiple timed resistors and multiple Each set of analog switches connected in series is connected in parallel, one is connected to a time capacitor, and the other is connected to an electrode to form a time constant circuit, and each control input of multiple analog switches is connected in parallel. Phase control for advertising and decorative lights, characterized in that the output of a counter circuit is used to sequentially control the time constant circuit, and the phase of the load is automatically and continuously controlled in a stepped manner. Device.