CN2385475Y

CN2385475Y - Key switch controller

Info

Publication number: CN2385475Y
Application number: CN 98223505
Authority: CN
Inventors: 陈文彬
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-03-20
Filing date: 1998-03-20
Publication date: 2000-06-28
Anticipated expiration: 2008-03-20

Abstract

The utility model relates to a key switch controller, wherein, a control circuit comprises a reference oscillator, a pulse timer, a period comparator, a power modulating distinguishing indicator and an output driver, and the control circuit is used for receiving the pulse signal sent to a key switch to control the load connected with an AC power supply and the conductive state of a brake path controller.

Description

The key switch control device

The utility model relates to a kind of key switch control device, is meant a kind of the adjustment and the key switch control device of memory load power output especially.

Science is flourishing, and simple and easy practical electrical appliance has been modern's inseparable part of living, and switch then is to be used for power sourced electric is connected in various electrical appliances, and in the switch of many kinds, switch and our daily life relation is the closest on the wall.

Switch can be divided into following several substantially on traditional wall:

(1) contact witch: this kind switch is circulating segmentation control, is subject to the influence of static and make and break contact formula spark in the use, and inductive load start and produce error, and it touches principle system and is provided by coupling capacitance, is not suitable for using as switch;

(2) touch switch: this kind open relation directly is connected with AC power, and can only provide out (ON) and the function of closing (OFF), can not do to change and use for fear of its function restriction in the use, and owing to directly be connected with AC power, when opening or closing this switch, be easy to produce spark, make the contact over hot melting, and also find to have all not satisfactory shortcoming of moisture resistance and contact in the use;

(3) the rotary dimmer switch of contact: the function of the many light modulations of the more aforesaid simple contact type switch of this kind switch, must earlier switch be gone to the position of ON in the use, rotary switch then, make brightness by dark extremely the brightest, and during off switch, also earlier with brightness by high light to the darkest, again switch is gone to the OFF position, this kind switch also has aforementioned contact type switch easily to produce shortcomings such as spark, moisture-sensitive in the use, and adjustment brightness function is also found sth. annoying or trying trivial (each user is necessary earlier by dark extremely bright).

The purpose of this utility model provides a kind of key switch control device with adjustment and the output of memory load power, use one key formula mechanical switch to reach in the use effect more easily, and avoid opening or produce during off switch spark, and cause damaging switch controlling device, and produce the explosion-proof occurrence cause of particular surroundings.

The utility model is to realize like this, a kind of key switch control device, wherein, this control circuit system receives to the pulse signal of key switch, in order to the load that is connected with AC power of control and the conducting state of lock road controller, be characterized in: a reference oscillator is that clock signal output is provided; One clock pulse timer receives the clock signal that the said reference oscillator is exported, and after the pulse signal input that receives above-mentioned key switch, i.e. response produces a monostable pulse signal; One-period comparator, receive the clock signal that the said reference oscillator is exported, and promptly respond the periodic wave of output certain hour length when the clock signal that receive the said reference oscillator; One power modulation differentiating deice, system receives distinguishes the monostable pulse signal that shows that above-mentioned clock pulse timer is exported, periodic wave with above-mentioned cycle comparator output, when this clock pulse timer is exported first monostable pulse signal, this cycle comparator can be exported the periodic wave of certain hour length simultaneously, the power modulation differentiating deice was promptly exported a high level and was distinguished and show signal this moment, then when receiving the plural monostable pulse signal of being exported by this clock pulse timer simultaneously in this periodic wave one-period, this power modulation differentiating deice is promptly exported a low level and is distinguished and show signal; One output driver, system receives the monostable pulse signal that above-mentioned clock pulse timer is sent, and distinguish when showing signal at the high level that receives above-mentioned power modulation differentiating deice, i.e. response output one high level output signal, and distinguish when showing signal i.e. response output one low level control signal in the low level that receives above-mentioned power modulation differentiating deice.Like this, when pressing this key switch, this load promptly reaches conducting state with AC power, receives the key switch signal of pressing more than twice in same periodic wave, and then load becomes off state with AC power.

As above-mentioned, put it briefly, key switch control device of the present utility model is in order to the load that is connected with AC power of control and the conducting state of lock road controller, system comprises a control circuit and the key switch that is connected with its control input end, is characterized in: mainly contain in this control circuit:

One reference oscillator, its clock signal output terminal respectively with a clock pulse timer with one-period comparator the input of clock signal be connected; The periodic wave output of this cycle comparator periodic wave input of this clock pulse timer and a power modulation differentiating deice respectively is connected; The output of this key switch connects the control wave input of this clock pulse timer and this power modulation differentiating deice respectively; The monostable pulse signal output of this clock pulse timer is connected with the monostable pulse signal input of this a power modulation differentiating deice and an output driver respectively; The output of this power modulation differentiating deice is distinguished with the level of this output driver and is shown that signal input part is connected; The output of this output driver connects with circuit mutually with the control end of this lock road controller.

Further, in the utility model, this clock pulse timer system contains the setting line, when setting line signal output " 11 ", then press this key switch, this load promptly reaches conducting state with AC power, and key switch is pressed more than twice in same periodic wave, and then load becomes off state with AC power; When setting line signal output " 10 ", then press this key switch, this load promptly becomes off state with AC power, and key switch is pressed more than twice in same periodic wave, and then load becomes conducting state with AC power; When setting line signal output " 01 ", by this key switch, this load promptly becomes conducting state with AC power when first, again by once becoming off state, or ought press this key switch first, this load promptly becomes off state with AC power, again by once becoming conducting state; When setting line signal output " 00 ", this key switch is made conducting state or off state by oneself by the user; This control circuit system connects with this lock road controller mutually via circuits for triggering, the triggering element of these circuits for triggering is mainly transistor or electric capacity or diac (DIAC) and triggers, make the controller conducting of lock road, and lock road controller is TRIAC (TRIAC); This power modulation differentiating deice, the monostable pulse signal that shows that above-mentioned clock pulse timer is exported is distinguished in reception, periodic wave with above-mentioned cycle comparator output, when the time span of this monostable pulse signal time span greater than this periodic wave, then this power modulation differentiating deice is exported a pulse wave modulation enable signal.At last, this output driver is to receive the clock signal that above-mentioned clock pulse timer is sent, and when receiving the pulse wave modulation enable signal of above-mentioned power modulation differentiating deice, i.e. response output one power modulation pulse signal changes the power output of load, and remembers this power modulation pulse signal.

Progressive effect of the present utility model will be explained in conjunction with the embodiments.

Relevant the utility model be achieve the above object, technological means and effect thereof that feature adopted, now exemplify preferred embodiment and conjunction with figs. is described as follows:

Fig. 1 is the oscillogram of the utility model preferred embodiment.

Fig. 2 is the calcspar of the utility model preferred embodiment.

Fig. 3 is the circuit theory diagrams of the utility model preferred embodiment.

At first please refer to Fig. 2 and shown in Figure 3, key switch control device of the present utility model, mainly be that 20 one-tenth circuit of a control circuit 30 and a key switch are connected, and be used for controlling the lock road controller 40 and the load 10 of connecting with AC power, and the utility model is characterized in: a reference oscillator 31, a clock pulse timer 32, one-period comparator 33, a power modulation differentiating deice 34, an output driver 35; Wherein:

This key switch 20 promptly can be exported a pulse signal when pressing once, and continue to press this key switch 20, promptly can export relatively and the square wave of length press the time reasonable time.

This reference oscillator 31 is to be used to provide the inner required clock signal of the utility model.

This clock pulse timer 32, receive the clock signal that said reference oscillator 31 is exported, and after the pulse signal input that receives above-mentioned key switch 20, i.e. response produces a monostable pulse signal, and export the continuous impulse signal when this key switch 20 presses continuously, i.e. response produces two above monostable pulse signals.

This cycle comparator 33, receive the clock signal that said reference oscillator 31 is exported, and promptly respond the cycle square wave of exporting certain hour length receiving said reference oscillator 31, and should the cycle square wave Preset Time length in advance, for example can be preset as for 2 seconds.

This power modulation differentiating deice 34, system receives distinguishes the monostable pulse signal that shows above-mentioned clock pulse timer 32 outputs, periodic wave with above-mentioned cycle comparator 33 outputs, if during these clock pulse timer 32 first monostable pulse signals of output, this cycle comparator 33 can be exported the periodic wave of certain hour length simultaneously, power modulation differentiating deice 34 was promptly exported a high level and was distinguished and show signal this moment, then when receiving the plural monostable pulse signal of being exported by this clock pulse timer 32 in the one-period at this periodic wave simultaneously, this power modulation differentiating deice 34 is promptly exported a low level and is distinguished and show signal, in addition, the square wave time span of sending when this key switch 20 is greater than cycle of cycle comparator 33 during square wave, 34 output of this power modulation differentiating deice, one pulse wave modulation enable signal;

This output driver 35, system receives the monostable pulse signal that above-mentioned clock pulse timer 32 is exported, and the high level that receives above-mentioned power modulation differentiating deice 34 is distinguished when showing signal, i.e. response output one high level output signal, and distinguish when showing signal in the low level that receives above-mentioned power modulation differentiating deice 34, i.e. response output one low level control signal in addition, then can be exported a power modulation pulse signal when this output driver 35 is received the pulse wave modulation enable signal of above-mentioned power modulation differentiating deice 34.

The utility model system when implementing realizes with-ASIC, and adjustment circuit 1 and current rectifying and wave filtering circuit 2, system is used for converting alternating-current voltage source to a stable DC voltage source, provide to control circuit 30, low pass circuit 3 then is used to provide the supply frequency input, and 4 of oscillating circuits are the internal oscillator source, and 5 outputs as this output driver 35 of circuits for triggering trigger, inductance L 1 is to be used for protection as

lock road controller

40,41 indications as key switch 20 light modulations of illuminating circuit;

By said structure, the utility model please cooperate shown in Figure 1 when implementing, wherein, this load 10 is a light-emitting component, when pressing this key switch 20 first (when t0), this key switch 20 promptly produces a pulse and inputs to clock pulse timer 32, make this clock pulse timer 32 produce a monostable pulse signal, and trigger simultaneously and make this cycle comparator 33 produce one-period square wave (positive edge-triggered), in the present embodiment, the length of this cycle square wave is 2 seconds (being t0 to t1), and the output state of this load 10 this moment is for opening (ON); And ought press this key switch 20 (being t2) for the second time, and making the plural pulse input of cycle square wave interior (being t2 to t3) generation at one time, the output state of this load 10 this moment is for closing (OFF);

Moreover, when pressing this key switch 20 and will not decontroling, the time span (being t4 to t5) that surpasses the predetermined period square wave pulse signal input time (being t4 to t6) that key switch 20 is provided, this load 10 this moment promptly can be in open mode, and 10 of this loads are positioned at dimming state in the time of t5 to t6, this moment, 35 of this output drivers can be exported a power modulation pulse signal, and this power modulation pulse signal system is controlled the power output of this load 10 by the counter (not shown) of these output driver 35 inside; This counter is 128 contrast photo counters in the present embodiment, that is the brightness of control light-emitting component, and when this key switch 20 was decontroled, this power modulation pulse signal was promptly remembered by this counter, makes to operate in next time to produce identical brightness when opening this load 10; The dimming state of above-mentioned load 10, when pressing these key switch 20 output pulse signals to illuminating circuit 41, the light-emitting diode of this illuminating circuit 41 promptly moves with this key switch 20, when key switch 20 opens circuit, the light-emitting diode of this illuminating circuit 41 is promptly bright, when pressing this key switch 20 and will not decontroling, the light-emitting diode of this illuminating circuit 41 is then by the brightest gradually extremely the darkest, otherwise, then by the darkest gradually extremely the brightest, when key switch 20 paths, the light-emitting diode of this illuminating circuit 41 is promptly dark.

Simultaneously, key switch control device of the present utility model can be owing to the change of the application function of ASIC, and change the wherein operation definition of ON and OFF, as above-mentioned clock pulse timer 32 is to contain coding (setting line), when setting line signal output " 11 ", then presses this key switch 20, this load 10 promptly reaches conducting state with AC power, in same periodic wave, press above key switch 20 twice, then load 10 becomes off state with AC power; When setting line signal output " 10 ", then press this key switch 20, this load 10 promptly becomes off state with AC power, presses above key switch 20 in same periodic wave twice, and then load 10 becomes conducting state with AC power; When setting line signal output " 01 ", by this key switch 20, this load 10 promptly becomes conducting state with AC power when first, again by once becoming off state, or ought press this key switch 20 first, this load 10 promptly becomes off state with AC power, again by once becoming conducting state; When setting line signal output " 00 ", this key switch 20 is made conducting state or off state by oneself by the user.

By above-mentioned coding (set line signal) output intent such as following table:

Set line		ON state of operation pattern	OFF state of operation pattern
Set line		ON state of operation pattern	OFF state of operation pattern	1	1	Press once cycle time	Press cycle time secondary or more than
1	0	Press cycle time secondary or more than	Press once cycle time	1	1	Press once cycle time	Press cycle time secondary or more than
1	0	Press cycle time secondary or more than	Press once cycle time	0	1	Button or button first once more	Button or button once more first
0	0	The user makes by oneself	The user makes by oneself	0	1	Button or button first once more	Button or button once more first

In sum, but the function of the annexation of our general description circuit theory diagrams of the present utility model and used integrated circuit GL321828-WS.

Load 10 is in series with lock road modulator 40, their two ends connect AC power AC and constitute the modulation loop, the output OUT that is used as the integrated circuit GL321828-WS of control circuit 30 is connected with the control utmost point of this lock road modulator 40 through circuits for triggering 5, thereby implements the switch control to above-mentioned modulation loop; The OSMO of this integrated circuit GL321828-WS holds and the OSMI end is connected with oscillating circuit 4 and its internal oscillator source is provided; And its ENDM end connects key switch 20, sets the line signal with input, and being connected in series a little of this load 10 and lock road controller 40 certainly, respectively: 1, connection illuminating circuit 41 (as the indication of key switch 20 light modulations); 2, through low pass circuit 3, and the LF end of connection GL321828-WS, with the frequency of input power supply; 3, the adjustment circuit 1 through connecting successively, current rectifying and wave filtering circuit 2 and the vdd terminal that connects GL321828-WS are to provide current and power supply; Adjust the power end that circuit 1 connects these circuits for triggering 5 from this again in addition.

And the utility model also can be used to as adjusting rotation speed of the fan, being the control of open and close, and its operating principle is identical with aforementioned person, does not give in addition at this and giving unnecessary details.

Switch has following progressive effect on the more known wall of the utility model:

One. have note second modulation power stage effect, the power performance (for example rotating speed of the brightness of bulb or fan) of the load of can modulation using, and the performance of the power behind the modulation is remembered, when next operation, be the power performance of exportable last memory, save the loaded down with trivial details of user's modulation step; Two. process with dc source, the flower of not lighting a fire, safer in the use.

Claims

1, a kind of key switch control device, in order to the load (10) that is connected with AC power of control and the conducting state of lock road controller (40), system comprises a control circuit (30) and the key switch (20) that is connected with its control input end, and it is characterized in that: this control circuit mainly contains in (30):

One reference oscillator (31), its clock signal output terminal are connected with the input of a clock pulse timer (32) and the clock signal of one-period comparator (33) respectively; The periodic wave output of this cycle comparator (33) the periodic wave input of this clock pulse timer (32) and a power modulation differentiating deice (34) respectively is connected; The output of this key switch (20) connects the control wave input of this clock pulse timer (32) and this power modulation differentiating deice (34) respectively; The monostable pulse signal output of this clock pulse timer (32) is connected with the monostable pulse signal input of this a power modulation differentiating deice (34) and an output driver (35) respectively; The output of this power modulation differentiating deice (34) is distinguished with the level of this output driver (35) and is shown that signal input part is connected; The output of this output driver (35) connects with circuit mutually with the control end of this lock road controller (40).

2, key switch control device according to claim 1 is characterized in that, this clock pulse timer (32) is to contain the setting line.

3, key switch control device according to claim 1, it is characterized in that, this control circuit (30) is to connect mutually with this lock road controller (40) via circuits for triggering (5), the triggering element of these circuits for triggering (5) is mainly transistor or electric capacity or diac and constitutes, and this lock road controller (40) mainly is the TRIAC formation.