JPH0148637B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a dimmer device that performs up and down dimming using a dimmer switch.

[Background technology]

Conventionally, this type of light control device has been constructed as shown in Figs. 1 and 2, where 1 is a commercial power supply, 2 is a bidirectional three-terminal thyristor 3 for phase control (hereinafter referred to as triax 3), and its A dimming block consisting of a control circuit 4, a lamp 5 consisting of an incandescent lamp,
6 is an operation block equipped with a dimming switch consisting of an up switch 7 and a down switch 8, and a blinking switch 9 consisting of a push button switch;
The control circuit 4 uses a dimmer switch consisting of an up switch 7 and a down switch 8 to switch on the tryout 3.
a dimming controller that controls the lighting phase of the lamp 5 by controlling the trigger phase of the switch 9; It is composed of a control section, and a dimming switch consisting of an up switch 7 and a down switch 8,
Blinking by the blinking switch 9 was performed completely independently.

By the way, in such a conventional example, when dimming is performed by operating the up switch 7, down switch 8, and flashing switch 9 as shown in the time chart of FIG. A state in which dimming was not possible easily occurred, and the operator was sometimes confused about the operation when dimming and lighting. That is, if the lamp 5 is turned off by pressing the flashing switch 9 at time t ₁ , the up switch 7 and down switch 8 must be operated at the next lighting time (t ₂ ) until the flashing switch 9 is operated. However, if you operate up switch 7 or down switch 8 without operating flashing switch 9, you may misunderstand that dimming is not possible ( _failure ). When the lamp 5 is dimmed to the off state by the switch 8, at the next lighting point (time _t4 ), it is necessary to operate the up switch 7 without operating the blinking switch 9; If the up switch 7 or the down switch 8 is operated after that, the light cannot be dimmed, and the problem arises that the flashing switch 9, up switch 7, and down switch 8 must be operated many times. In other words, the lamp 5 can be turned off by the blinking switch 9, and the down switch 8 can be turned off.
Since it is unclear which switch 9 or 8 was used to turn off the light the previous time, that is, the current state of lighting is unknown, the lighting operation becomes confusing.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned points, and its purpose is to avoid confusion in the dimming operation even when the current lighting state is unknown. The purpose of the present invention is to provide a light control device.

[Disclosure of the invention]

(Embodiment) FIG. 4 shows an embodiment of the present invention, in which 10 is a dimming control unit that controls the dimming of the lamp 5, and a power supply synchronization signal _VCO synchronized with the zero-crossing point of the commercial power supply voltage _VAC. Power synchronization signal generation circuit 11 that generates
, a divided clock generation circuit 12 that outputs a divided clock V _C1 that divides a half cycle of the commercial power supply voltage V _AC into an appropriate number (16 in the embodiment), and a power supply synchronization signal.
A counter 13 that counts the reset divided clock V _C1 at V _CO and a counter 13 that counts the reset divided clock V C1 at a relatively low frequency (for example, 0.5 to
The dimming clock generation circuit 14 generates the dimming clock V _C2 (1.0 sec), and the dimming clock V _C2 is counted, and the up switch 7 and down switch 8, which are push button switches, perform counting operations (up count, down count and (stop counting)
is controlled by up-down counter 15, exclusive OR circuits EO ₁ to EO ₄ and NOR circuit
The trigger signal V _T of the triac 3 is output when the output of the counter 13 matches the output of the up-down counter 15. however,
In the embodiment, the counter 13 and the up-down counter 15 use μPD4029C manufactured by Nichiden, where CK is a clock input terminal, U/D is an up-down switching terminal, PE is a preset enable terminal,
CI is a carry-in terminal, A to E are preset data input terminals, and Q _A to Q _D are output terminals. The counter 13 sets the preset data to “0, 0, 0,
0" so that when the power synchronization signal V _CO is input to the preset enable terminal PE, the outputs Q _A to Q _D of the counter 13 are set to "0, 0, 0, 0" and a reset operation is performed. The up-down switching terminal U/D is always kept at the "H" level for up-counting. Also,
The up-down counter 15 switches the up-down of the counting operation according to the level applied to the up-down switching terminal U/D, and
The counting operation is controlled by the level applied to CI, and when either dimmer switch 7 or 8 is turned on, the OR circuit OR output goes high.
When the output of the inverter circuit _IN1 becomes L level, a counting operation is performed, and when the up switch 7 is turned on, a down count is performed, and when the down switch 8 is turned on, an up count is performed. 17 is a blinking control section formed by a D flip-flop FF ₁ and an AND circuit AND ₁ ;
By turning on/off the blinking switch 9, the output Q of the D flip-flop FF ₁ is inverted, and the AND circuit is activated.
AND ₁ controls the input of the trigger signal V _T to the trigger circuit 19 to switch and control the blinking of the lamp 5. Reference numeral 18 is a forced lighting means formed by reusing the OR circuit OR of the dimming control section 10 and the set terminal S of the D flip-flop _FF1 , and when either of the dimming switches 7 or 8 is operated, the D flip-flop is switched on. The output Q of FF ₁ is forced to the H level, and the blinking control section 17 is set to the side that lights the lamp 5. The trigger circuit 19 includes a transistor _Q0 and a photocoupler.
It is made up of a PC and a diode bridge DB, and NF is a noise removal circuit.

The operation of the embodiment will be described below. 5 and 6 are time charts showing the operation. FIG. 5a shows the commercial power supply voltage V _AC , FIG. 5 b shows the power synchronization signal V _CO , and _FIG .
Figure d shows the trigger signal V _T , and Figure 6 shows blinking and dimming operations. Now, when the blinking control unit 17 is set to turn on the lamp 5, the counter 13, which is reset by the power synchronization signal V _CO , is counting the divided clock V _C1 , and the output of the counter 13 is increasing and decreasing. When the output of the counter 15 matches, the match detection circuit 1
Trigger signal for controlling the phase of triax 3 from 6
V _T is output, and the lamp 5 is dimmed and lit at a predetermined brightness based on the dimming data set in the up-down counter 15. Next, the period T ₁ during which the up switch 7 or the down switch 8 is turned on
~ _T4 , the up-down counter 15 counts up or down the dimming clock V _C2 , the dimming data set in the up-down counter 15 is sequentially rewritten, and the lamp 5
is dimmed up and down. Next, flashing switch 9
At the time of operation (times _t1 , _t2 , _t4 , _t5 , _t6 ), the D flip-flop _FF1 performs a reversal operation and the blinking state of the lamp 5 is reversed. By the way, in the present invention, when either the up switch 7 or the down switch 8 is turned on, the forced lighting means 18 causes the output Q of the D flip-flop FF ₁ of the lighting control section 17 to go to H level. The lamp is set to 5 when the light is dimmed.
is forced to stay lit, so
Unlike the conventional example, there is no confusion when operating the lighting. For example, when the lamp 5 is turned off by operating the flashing switch 9 at times t ₂ and t ₆ ,
Next, even if the up switch 7 or the down switch 8 is operated without turning on the flashing switch 9 at time t ₃ or t ₇ when the lamp 5 is turned on, the flashing control unit 17 automatically lights the lamp 5. Since the light is set on the side, the desired dimming operation can be performed immediately and there is no need to be confused about the operation. Also,
When the lamp 5 is turned off with the down switch 8, even if you operate the blinking switch 9 and then operate the dimmer switch when turning on the lamp next time, the operation of the blinking switch 9 (the operation to turn off the lamp 5) ) is automatically canceled, and the dimming operation can be performed normally even though the operation is not performed according to the prescribed procedure. In other words, when the light is turned on, the operator only has to perform the dimming operation without worrying about the previous operation when the light was turned off, and even if he does not know the current lighting status, he can perform the dimming operation when the light is turned on. There will be no confusion.

(Embodiment 2) FIG. 7 shows another embodiment, which is provided with forced lighting means 18a having a dimming data preset section consisting of an RS flip-flop FF ₂ , an inverter circuit IN ₂ and an AND circuit AND ₂ . By presetting the up-down counter 15 outputs Q _A to Q _D to "1, 1, 1, 1" when the up switch 7 is operated, the lamp 5 is dimmed up from the off state, and the down switch 8 is turned off.
Up-down counter 15 output Q _A when operating
By presetting Q _D to "0, 0, 0, 0", the lamp 5 is dimmed down from the fully lit state. This dimming operation is the sixth
The result will be as shown by the dotted line in the figure.

(Embodiment 3) FIG. 8 shows still another embodiment, in which in a lighting device having a lamp 5 and a miniature bulb, (i) the lamp 5 is fully lit, (ii) the lamp 5 is dimmed, (iii) Turn on the light bulb, (iv) Turn off the lamp 5 and the light bulb, and a changeover switch 9a, an up switch 7, a down switch 8, and a changeover switch 9a.
The operation block 6 is equipped with a remote control transmitting section 20 that sends the status of the light to the lighting control section, and as in the first embodiment, when the up switch 7 or the down switch 8 is operated, the lamp 5 is turned on and dimmed. A forced lighting means is provided to set the lighting state.

Now, if the lighting conditions are sequentially changed as shown in FIG. 9 by the changeover switch 9a as described above, and the dimming is performed by the up switch 7 and the down switch 8 during dimming, the lamp 5 Since it is difficult to distinguish between full lighting and a dimming state close to full lighting, or between lights off and a dimming state close to off, there is no need to misunderstand the current lighting state and operate the changeover switch 9a. There is a risk that the user may operate the changeover switch 9a regardless of the situation and become confused when the desired lighting state is not achieved. In addition, if the changeover switch 9a is operated incorrectly once, it is necessary to operate the changeover switch 9a three times (sequential switching) to return to the original dimming lighting state, which is cumbersome and may result in malfunction. The problem is that there is a risk of misunderstanding. Therefore, in the second embodiment, when the up switch 7 or the down switch 8 is operated, the lamp 5 is forcibly set to a dimmed lighting state, so the current lighting state can be determined as described above. Even if the changeover switch 9a is operated incorrectly without changing the brightness, the light can be adjusted normally by operating the up switch 7 or the down switch 8, and the changeover switch 9a
There will be no confusion due to incorrect operation.

〔Effect of the invention〕

As described above, the present invention includes a dimmer control section that controls the lighting phase of the lamp with a dimmer switch consisting of an up switch and a down switch, and a blinking control section that controls switching of the blinking state of the lamp with a blinking switch. A dimmer device is equipped with a forced lighting means that sets the blinking control unit to the lamp lighting side when the dimmer switch is operated, so even if the blinking switch is operated incorrectly, it will not return to normal when the dimmer switch is operated. Since the light is dimmed, even if the current lighting state is unknown, there is no confusion in the operation when dimming and lighting.

[Brief explanation of drawings]

Fig. 1 is a block circuit diagram of a conventional example, Fig. 2 is a perspective view of the main parts of the same as above, Fig. 3 is an explanatory diagram of the same as above, Fig. 4 is a specific circuit diagram of an embodiment of the present invention, Figs. Fig. 6 is an explanatory diagram of the same operation as above, Fig. 7 is a specific circuit diagram of the main part of another embodiment, Fig. 8 is a front view of the main part of still another embodiment, and Fig. 9 is an explanatory diagram of the same as above. be. 2 is a lamp, 7 is an up switch, 8 is a down switch, 9 is a blinking switch, 10 is a dimming control section, 17 is a blinking control section, and 18 is a forced lighting means.

Claims (1)

[Claims] 1. In a dimmer device consisting of a dimmer control unit that controls the lighting phase of a lamp with a dimmer switch consisting of an up switch and a down switch, and a blinking control unit that controls switching of the blinking state of the lamp with a blinking switch, the dimmer switch A light control device comprising forced lighting means for setting a blinking control section to the lighting side of a lamp when the lamp is operated.