JPS59139780A - Controller - Google Patents

Abstract

PURPOSE:To control a dimmer with high efficiency by means of a pair of lines by controlling an up/down switch of a slave device to increase or decrease the conduction angle of a TRIAC and controlling the illumination light. CONSTITUTION:The electric power given from a power supply 1 such as a commercial AC power supply, etc. is applied to an illumination lamp 2 to control the dimmer via a TRIAC21 provided to a master device 20 after the level of load is discriminated 33 between lines 30 and 31. The conduction angle of the TRIAC 21 is controlled by a TRIAC driving circuit 52 in order to control the light of the lamp 2. The circuit 52 contains input terminals 23-25. The conduction of the TRIAC21 is controlled every time the terminal 23 is set at a high level. Then the conduction angle of the TRIAC21 is increased up to the maximum value when the terminal 24 is set at a high level; while the conduction angle of the TRIAC21 is reduced down to the minimum value when the terminal 25 is set at a high level. Then the conduction angle of the TRIAC21 is increased and decreased with operation of an up-switch 44 and a down-switch 45 of a slave device 32 respectively.

Description

Detailed Description of the Invention Technical Field The present invention relates to a control device in which one or more slave units are connected to a base unit, and a control device connected to the base unit can be controlled by the slave units. Regarding equipment.

Prior Art FIG. 1 is an electrical circuit diagram of the prior art. This light control device is a triac 4 installed in a conduction angle master unit 3 of a lighting lamp 2 powered by a power source 1 such as a commercial AC power supply.
All dimming can be done by controlling. The base unit 3 includes an on/off switch 5 that turns all the lighting lights 2 on and off, an amplifier switch 6 that is operated to brighten the lighting lights 2, and a down switch 7 that is operated to dim the lighting lights 2. including. Like this switch 5゜6.7
&t, are connected via six lines 8 to an on/off switch lO provided in the handset 9, an amplifier switch 11, and a down switch 12, respectively. Such prior art clearly has too many lines 8. Therefore, it is undesirable to reduce the number of lines 8.

Other prior art technology that aims to completely reduce the number of lines is configured to superimpose, for example, a pulse-modulated signal on the Ω power line in order to supply power from the base unit to the slave unit. Ru. In such a prior art, the structure or the inclination is important, and especially when the number of signals to be transmitted is relatively small as in the case of a light device gong, a simple structure is desired.

Purpose An object of the present invention is to provide a control device that can reduce the number of lines and simplify the configuration.

Embodiment FIG. 2 is an electrical circuit diagram of an embodiment of the present invention. In the light control device H, power from a power source 1 such as a commercial AC power source is applied to a lighting lamp 2 to be dimmed via a triac 21 provided in a base unit 20. triac 2
The illumination lamp 2 is dimmed by fully controlling the conduction angle of the illumination lamp 2. The triac drive circuit 52 has an output terminal 22
has.

The output terminal 22 is at a high level when the triac 21 is in the on state where the conduction angle is controlled and power is supplied to the illuminating lamp 2, and when the illuminating lamp 2 is not being supplied with power, the output terminal 22 is at a high level.
remains at low level. This triac drive circuit 5
2 has three input terminals 23.2'4.25'.

Each time the input terminal 23 becomes high level, the triac 21 is controlled to be conductive or controlled to be inward. When a high-level signal is applied to the input terminal 24, the triac drive circuit 52 increases the conduction angle of the triac 21 during the duration of the high-level signal, and finally remains at the maximum conduction angle. do. When a high-level signal is applied to the input terminal 25, the conduction angle of the triac 21 is gradually changed to a smaller value during the duration of the high-level signal, and finally remains at a predetermined small conduction angle.
Alternatively, the conduction angle finally becomes zero.

The power from the power supply 1 is full-wave rectified and smoothed by the rectifier circuit 26 and the capacitor 57, and a predetermined voltage VOI determined by the transistor Tr4 and the Zener diode Z01 is applied to the line 27. The line 27 (() is connected to the transistor Tr5, the Zener diode Z23, and the transistor Tr3. The transistor Tr3 is connected to the output terminal 22 of the triac drive circuit 52.
When it reaches a high level, send 4 messages. Transistor Tr
The power from 5 is applied to line 28 via a resistor R and is connected, together with another line 29, to slave unit 32 from an externally connected line 30.31.

The level discrimination means 33 includes resistors R1 to R7 that divide the voltage of the line 27, and comparison circuits M1 to M8. The line 28 is connected to one of the comparator circuits M1 to M6, and the voltage divided by the resistor R1 to ζ7 is applied to the other input terminal of the comparator circuits M1 to M6.

The third diagram 1 is a simplified block diagram of the comparator circuit M1. This comparison circuit M1 includes a so-called oven collector type transistor 34. When the voltage at the non-inverting input terminal 35 is higher than the voltage at the inverting input terminal 36, the transistor 34 becomes conductive and its output terminal 37 becomes low level.

When the voltage at non-inverting input terminal 35 is less than the voltage at inverting input terminal 36, transistor 34 is cut off;
The output impedance of the output terminal 37 is high. Although the remaining comparison circuits M2 to M6 also have similar configurations, the connection mode of their pair of input terminals is the same as that of the comparison circuit r.
vi 2 pΔ'14. The comparator circuit M6 is opposite to the comparator circuit M1. The output terminals of comparison circuits M1 to M6 are connected to resistors R11 to
R14 and the diode 1) are connected in relation to D2. Comparison circuits Ml, M2. M6 is also a diode D3. connected in relation to D4 and diode D3
．． An on/off switch 38 is connected to D4. At the connection point of one diode 3.1) 4 and switch 38,
Input terminal 23 is connected. The output terminal of the comparison circuit M3 is connected to the up switch 39 and to the input terminal 24 via a diode D5'r. Comparison circuit M4. The output of M5 is given to NOR gate 41.

The output from NOR gate 41 is applied to input terminal 25 via diode D6.

A down switch 40 is connected to this input terminal 25. The human power impedance of the comparison circuits M1 to M6 has an extremely high value.

In the handset 32, an on/off switch 43 and a Zener diode Z12 are connected in series to the line 30.31. At the connection point between the on-off switch 43 and the Zener diode Z12, a diode D7 connected in the forward direction,
A Zener diode Z56 connected with opposite polarity is connected in series. The Zener diode Z56 includes a Zener diode Z34. connected to the amplifier switch 44 and the down switch 45, respectively. Each series circuit consisting of Z45 is connected in parallel, and a light emitting diode LD2 for display is also connected. Line 356-i, resistance R
21, Zener diode Zl, and transistor T.
connected to the base of the ri.

A light emitting diode LDI for display is connected to this transistor Tri, as well as a series circuit of a resistor R23 and a diode D8. A connection point between resistor R23 and diode D8 is connected to the base of transistor T r '2 via diode D9i. Transistor Tr2 connects line 31 and sonar diode Z56. Z3
4. Diode D10'i is connected to Z45 and '(7) connection point.
Connected via.

With full reference to Figure 4, Zoena die cutting 201°Zl, 2
．． Z23. Breakdown voltages VO1, V12 . of Z34, Z45 and Z56. V23. V34 ; V45
, vse, then the voltages V]' to 6 by the voltage dividing resistors R1 to R7 applied to the comparison paths M1 to M6 are resisted as shown. The breakdown voltage of the Zener diode Z1 is chosen to be equal to the voltage v2.

It is assumed that the tryon 21 is in the cut-off state.

At this time, the output terminal 221/i is at low level tt,
For this reason, the transistor Tr3 is left in place. Therefore, lines 30, 31 l'+jl of liquor 5. The voltage is the voltage VOI corresponding to the Zener diode Z01. At noon, the Zener diode Z1 is conductive 11n, so that the transistor T r 1 is 43nt L, and the light emitting diode LDI is lit. This light emitting diode LD
The lighting of I indicates that the lighting lamp 2 is turned off. Transistor Tr2 is cut off.

When the on-off switch 43 is operated, the zener diionide Z12 becomes conductive. Therefore, due to the action of the resistor R, the voltage between the lines 30 and 31 becomes V12. This voltage V12
is an intermediate value between the voltages Vl and V2 applied to the comparison circuits N11, M2 of the base unit 20. Therefore, the comparison circuit M
1. ．． Both output terminals of M2 become high level. Therefore, this high level signal is given to the triac drive circuit 520 input terminal 23 from the diode D'3,
The conduction angle of the triac 21 is controlled. At the same time, the output terminal 22 becomes high level.

Transistor Tr3 is therefore conductive, so that the voltage across line 30.31 becomes the corresponding voltage V23 of Zener diode Z23. Therefore, the Zener diode Z i B of child @32 is cut off.

The transistor 7Tr2 becomes conductive, thereby lighting up the light emitting diode LD2. The lighting of the light emitting diode LD2 indicates that the illuminating lamp 2 is in a lighting state.

When the up switch 44 of the handset 32 is operated, line 3
0, 31. The voltage between the zener diode 234 and the zener diode 234 becomes a voltage V34. This voltage ■34 is the main unit 2
This is a value between V3 and ■4 in the 0 level discrimination means 33. Therefore, the output terminal of the comparison circuit IV13°M4 becomes high level. As a result, a high level signal is applied to the input terminal 24 of the triac drive circuit 52 via the diode D5. Therefore, during the conduction period of the up switch 44, the conduction angle of the triac 21 changes to become larger.

When the down switch 45th' of the slave unit 32 is operated, the Zener diode Z45 becomes conductive, and the voltage between the lines 30 and 31 becomes V45. The /ζ comparison circuit M4. A high level signal is applied from M5 to the input terminal 25 of the triac drive circuit 52 via the NOR gate 41 and diode D6. Therefore, while the down switch 45 is being operated, the conduction angle of the triac 21 gradually changes.

The conduction angle of the triac 21 is controlled, and the lighting lamp 2
When the on/off switch 43 is lit and 7 is on, the on/off switch 43
When operated, the voltage of the energy diode Z56 becomes v56. Therefore, the high level signal from the comparison circuit M6 is applied to the input terminal 23 of the triac drive circuit 52 from the diode D4. In this way, the triac drive circuit 52 remains in the off state of the triac 2l-tS. So, stop making the sound of the on/off switch 43, and
When the line becomes disconnected, the voltage between lines 30 and 31 becomes ■5
6, the voltage returns to the voltage VOI corresponding to the Zener diode Z01.

Even if the on/off switch 38, up switch 39, and down switch 40 provided in the base unit 20 are operated, the triac drive circuit 52, the triac 21
control the conduction angle of

When the triac drive circuit 52 completely cuts off the triac 21 and the output terminal 22 is at a low level, the voltage between the lines 30 and 31 is the same as that of the Zener diode Z0.
1 and the fci pressure VOI, therefore the amplifier switches 39, 44 and the down and on switches 40.45'
r operation does not change the voltage across lines 30.31, and accordingly the voltage at input terminal 24.25 does not change. By this, the conduction angle of triac 21? After the lighting lamp 2 is turned on under control, the same brightness as before the lighting is turned off is obtained, which is convenient. line 30,
31 may be connected to a plurality of slave units 32. In the above embodiment, the level discrimination means 3: l-, j:, resistors R1 to R7
However, as another embodiment of the present invention, the voltage on the lines 30 and 31 may be detected and level discriminated by a breakdown operation using a Zener diode, and this may be realized by other configurations. may be done.

The present invention is not only implemented for dimming, but can also be widely implemented for controlling connected loads in relation to a master unit.

Effects As described above, according to the present invention, the level discrimination means provided in the base unit by the line 441 is given a voltage (Th number) which is expressed by mutually different voltages, and the level discrimination means provided in the base unit by the line of It is possible to control the load.In the configuration of the master unit and slave unit, as mentioned in connection with the first technique mentioned above, it is necessary to superimpose all modulated signals on the power line to supply all the electric power. This configuration can be extremely simplified compared to other configurations.

[Brief explanation of the drawing]

118th! /I is a block diagram of the prior art, No. 211RI
is an electric circuit diagram of one embodiment of the present invention, FIG. 3 is a simplified block diagram of comparison 1 circuit M1, and FIG. 4 is a diagram of voltages ■1 to V6.
．． Indicates the mutual relationship between VOI and V56 [Silent 0 1...Power supply, 2...Lighting light, 20...Base unit, 21
...Triac, '30, 31...Line, 3
2...Slave unit, 33...Level discrimination means, 38, 4
3... Main off switch, 39.44... Up switch, 40-45... Down switch, 52...
・Triac drive circuit, Z01 to Z56. Zl-・・
Zenator diodes, M1 to M6... Comparison circuit agent Patent attorney Kei Nishi Part 1 Figure 3 Figure 4 Parent rod 20 (art) + Tank 32 Procedural supplement July 22, 1988 Patent Director-General of the Office 11 Case No. 13581 Display, Invention Name Control Device 3, Relationship with the Supplementary Person Case Applicant Address 1-1 Nishihonmachi, Nishi-ku, Osaka City] No. 13: 38:;-
Shinko tY Hill International FAX GIII & () IJ ((1
6) 538-4) 247 Voluntary amendment 6, Detailed description of the invention column and drawing 7 of the specification subject to amendment, Contents of the amendment (1) "Number of folds" in the first line of page 3 of the specification is corrected to "complicated." (2) In page 5, line 16 of the specification, the word "conduction" is corrected to "blocking." (3) In the specification, page 5, line 17, "low level" is corrected to "high level." (4) In page 5, line 19 of the specification, the word "blocking" is corrected to "conducting". (5) 1 higher on page 5, line 20 of the specification. " is corrected to "low." (6) Figure 2 of the drawings will be corrected as shown in the attached sheet. that's all

Claims (1)

[Scope of Claims] A master unit and a slave unit are connected as a pair of line full valves, and the master unit includes: a power supply for applying the full voltage to the line IHj; a level discrimination means for discriminating the full voltage level between the lines; In response to the output from the level discrimination means, the slave unit includes a control means for controlling the load so as to be in an operating state corresponding to the voltage between the lines in response to the output from the level discrimination means; Characteristic control device.