CN1359255A - Digital type light-adjusting circuit - Google Patents
Digital type light-adjusting circuit Download PDFInfo
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- CN1359255A CN1359255A CN00132152A CN00132152A CN1359255A CN 1359255 A CN1359255 A CN 1359255A CN 00132152 A CN00132152 A CN 00132152A CN 00132152 A CN00132152 A CN 00132152A CN 1359255 A CN1359255 A CN 1359255A
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- adjusting circuit
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The digital light-regulating circuit is characterized by that it contains a microprocessor unit, a power supply phase detection circuit, a time base signal generation circuit, a display and an input key group. The power suplly phase detection circuit can be used for detecting A.C. input powre supply phase, and produces phase synchronous signal and transfers it into microprocessor unit. After the phase synchronous signal is received by microprocessor unit, it uses one-half cycle of A.C. power supply as counting unit, and uses the time bas signal of time base signal generation circuit as counting pulse of counting unit, accoding to the output power ratio value set by user it utilizes the microprocessor unit to produce a switch contral signal to control conduction angle of switch circuit so as to control intensity of light.
Description
The present invention relates to a kind of light adjusting circuit, particularly a kind of digital type light-adjusting circuit.
Looking into traditional light adjusting circuit generally all is to utilize bidirectional triode thyristor element (TRIAC) to cooperate a conducting angle control circuit and variable resistor to control the shading value of light.Yet the traditional light adjusting circuit of this kind can only be carried out the adjustment of simple light shading value, and can't do every diversified setting and planning.Therefore,, only can can't be applied in other application, also can't do more resilient application in conjunction with other digital circuit as simple light dimming function in application facet.
Moreover, in this traditional light adjusting circuit technology, the conducting angle adjustment of its bidirectional triode thyristor element is to rely on the user to regulate variable resistor to be reached, so aspect the accuracy of setting, unsatisfactory, and the user also can't really recognize the degree (promptly exporting the size of energy) of adjusting, only can rely on visual mode and estimate.This still can meet demand when general light regulatory function, but is stressing that comparatively accurate luminosity is regulated or during in conjunction with the occasion of other digital circuit, promptly often can't reach institute and desire to reach each target.
Therefore, if can design a kind of light adjusting circuit that can set arbitrarily and can accurately set, then to the user and the great practical value of Yan Yingyou.
Therefore, main purpose of the present invention promptly provides a kind of digital type light-adjusting circuit that every functional planning is accurately set of doing.
Another purpose of the present invention provides a kind of digital type light-adjusting circuit that variation is used of doing.
Above-mentioned purpose of the present invention is realized by following technical scheme.
A kind of digital type light-adjusting circuit is characterized in that: include
One microprocessing unit is in order to control the action of this light adjusting circuit;
One power phase circuit for detecting, its input is connected to AC power, in order to detecting the phase place of this AC power, and sends the Phase synchronization signal input part of Phase synchronization signal to this microprocessing unit by an output;
Basic signal generating circuit for the moment, in order to produce main pulse signal for the moment, provide to this microprocessing unit as time-base signal;
One display is in order to show the state of this digital dimming action and operating and setting;
One input key groups, look has been drawn together a plurality of buttons, in order to pattern and the data input of setting this light adjusting circuit;
Wherein this microprocessing unit is after the Phase synchronization signal that this power phase circuit for detecting of reception is sent here, two/one-period with AC power is the counting interval units, and with the count pulse of this time-base signal generation time-base signal that circuit was produced as this digit, the power output ratio value that sets according to the user again, produce a switch controlling signal by this microprocessing unit, to control the angle of flow of this switching circuit, use the electric energy size that control exports the light load to.
Except that above-mentioned essential features, in specific implementation process, also can replenish following technology contents:
Wherein this power phase circuit for detecting is a comparator, and its input is to be connected to ac power input end, in order to detect the phase place of this power supply.
Wherein this power phase circuit for detecting is in whenever alternating current input power supplying during in positive half cycle, and the Phase synchronization signal of sending a high level is to microprocessing unit; Whenever alternating current input power supplying during in negative half period, then send a low level Phase synchronization signal to microprocessing unit, the high-low level of Phase synchronization signal changes all hands over place more at zero of alternating current input power supplying, and during zero crossover point, the Phase synchronization signal of promptly sending a sequence is to microprocessing unit.
It more includes an output signal driver circuit, is amplified in order to the switch controlling signal with this microprocessing unit, to control the action of this switching circuit.
Wherein this power output ratio value is that the boundary is between 0-100%.
Wherein the calculating of this power output ratio value is to calculate according to sinusoidal wave effective value (RMS value).
Wherein this switching circuit is a two-way thyristor.
It more includes loudspeaker, in order to produce sound effect signal.
Wherein this switch controlling signal width is the needed width of bidirectional triode thyristor element triggering and conducting.
The invention has the advantages that:
The present invention controls the energy size that exports load to digital mode, so can reach comparatively accurate light regulatory function.In addition, this digital light adjusting circuit has cooperated the function of microprocessing unit, make the user can do the setting of every additional function, for example can do regularly some period of going out that control, wait lamp brightness are set, the light point goes out set, the brightness settings of difference periods ... Deng, so except can making simple light regulatory function, also can be widely used in the multiple application scenario.When for example personnel went out, brightness and the point that can set control light went out, to simulate the anti-theft effect that the people is arranged in the family.
Understand for having the present invention further, the explanation of conjunction with figs. and preferred embodiment now, the present invention is done one describe in detail as the back:
Description of drawings:
Fig. 1 shows control circuit figure of the present invention;
Fig. 2 shows signal waveforms of the present invention, and it has bigger AC power energy output valve;
Fig. 3 shows signal waveforms of the present invention, and it has less AC power energy output valve.
The preferred embodiment explanation:
Consult shown in Figure 1ly, it is to show control circuit figure of the present invention.Digital type light-adjusting circuit of the present invention mainly includes a microprocessing unit 10, and its circuit unit that cooperates periphery is in order to control the action of this light adjusting circuit.This microprocessing unit 10 is gone into end and is connected members such as key groups 11, display 12, loudspeaker 13 via output.Wherein this key groups 11 is configurable a plurality of buttons, operates the setting of pattern, data input and the control of every light of light adjusting circuit of the present invention by this button of operation for the user.Display 12 is the states that can be used to show digital dimming action of the present invention and operating and setting.
For the moment basic signal generating circuit 14 can produce main pulse signal for the moment, and can with should the time main pulse signal deliver to the time-base signal input CLK of microprocessing unit 10, to provide to the required time-base signal of this microprocessing unit 10.
In order to detect the waveform phase of alternating current input power supplying ACV, so use fourth one power phase circuit for detecting 15 among the present invention, its input is to be connected in parallel to AC power ACV, and its output then can be sent the phase signal input SYNC of a Phase synchronization signal SYN to this microprocessing unit 10.In preferred embodiment of the present invention, this power phase circuit for detecting 15 is to adopt a comparator, and its inverting input is other to be connected to ground, and normal phase input end is to be connected to alternating current input power supplying ACV, in order to detect the phase state of this alternating current input power supplying ACV.This comparator can be when alternating current input power supplying ACV be positive half cycle, the Phase synchronization signal of sending high level is to microprocessing unit 10, and whenever this alternating current input power supplying during in negative half period, then send a low level Phase synchronization signal to microprocessing unit 10, the variation of the high-low level of Phase synchronization signal is all got over (Zero crossing Point) in zero friendship of alternating current input power supplying and is located.
In addition, a power circuit 16 also is connected in parallel in this alternating current input power supplying ACV, and produces a direct current power supply, as the required working power of control circuit of the present invention.
One output of microprocessing unit 10 is actions of control switch circuit 18 via an output signal driver circuit 17, and in this embodiment of the present invention, this switching circuit 18 is two-way thyristors (TRIAC), its negative electrode is to form with load 19 to connect with anode, with the control switch as this load 19.Controlled by this output signal driver circuit 17 opportunity of the conduction and cut-off of this switching circuit 18.
Fig. 2 shows oscillogram of the present invention, cooperates this waveform and circuit block diagram shown in Figure 1 now, and operating principle of the present invention is done an explanation.Whenever alternating current input power supplying ACV during in zero crossover point (Zero), power phase circuit for detecting 15 promptly can be sent the Phase synchronization signal SYN of a sequence.When this microprocessing unit 10 after receiving the Phase synchronization signal SYN that this power phase circuit for detecting 15 sent here, two/one-period (T/2) with AC power is the counting interval units, and produce time-base signal that circuit 14 produced as the count pulse between this count block (CNT) with this time-base signal, the power output ratio value that sets via key groups 11 according to the user again, produce a switch controlling signal ON/OFF by this microprocessing unit 10, this switch controlling signal ON/OFF amplifies via the driving of output signal driver circuit 17 again, promptly can be used to control the angle of flow t of this switching circuit 18, use the electric energy size that control exports the light load to.
Aforesaid power output ratio value is between 0-100%, and resolution for example can be 3%, and the calculating of this power output ratio value is to calculate according to sinusoidal wave effective value (RMS value).And the pulse duration of aforesaid switch controlling signal ON/OFF is a bidirectional triode thyristor element triggering and conducting needed (for example between 19-50 μ s), also can regulate the width of this switch controlling signal according to actual needs.When this switch controlling signal ON/OFF produces, can make bidirectional triode thyristor element (TRIAC) conducting of switching circuit 18, so can be by the conducting angle of this bidirectional triode thyristor element of control, and may command exports the size of the AC power output valve of light load to.
And when user's desire is regulated the brightness of this light load, as long as regulate the power output ratio value.In the waveform for example shown in Figure 3, because the angle of flow t ' of bidirectional triode thyristor element is bigger, will export less AC power output valve this moment.
In sum, the true tool industrial utilization of digital type light-adjusting circuit provided by the present invention, and can bring into play expected effect.
Claims (9)
1, a kind of digital type light-adjusting circuit is characterized in that: include
One microprocessing unit is in order to control the action of this light adjusting circuit;
One power phase circuit for detecting, its input is connected to AC power, in order to detecting the phase place of this AC power, and sends the Phase synchronization signal input part of Phase synchronization signal to this microprocessing unit by an output;
Basic signal generating circuit for the moment, in order to produce main pulse signal for the moment, provide to this microprocessing unit as time-base signal;
One display is in order to show the state of this digital dimming action and operating and setting;
One input key groups, look has been drawn together a plurality of buttons, in order to pattern and the data input of setting this light adjusting circuit;
Wherein this microprocessing unit is after the Phase synchronization signal that this power phase circuit for detecting of reception is sent here, two/one-period with AC power is the counting interval units, and with the count pulse of this time-base signal generation time-base signal that circuit was produced as this digit, the power output ratio value that sets according to the user again, produce a switch controlling signal by this microprocessing unit, to control the angle of flow of this switching circuit, use the electric energy size that control exports the light load to.
2, as the said digital type light-adjusting circuit of claim 1, it is characterized in that: wherein this power phase circuit for detecting is a comparator, and its input is to be connected to ac power input end, in order to detect the phase place of this power supply.
3, as the said digital type light-adjusting circuit of claim 1, it is characterized in that: wherein this power phase circuit for detecting is in whenever alternating current input power supplying during in positive half cycle, and the Phase synchronization signal of sending a high level is to microprocessing unit; Whenever alternating current input power supplying during in negative half period, then send a low level Phase synchronization signal to microprocessing unit, the high-low level of Phase synchronization signal changes all hands over place more at zero of alternating current input power supplying, and during zero crossover point, the Phase synchronization signal of promptly sending a sequence is to microprocessing unit.
4, as the said digital type light-adjusting circuit of claim 1, it is characterized in that: it more includes an output signal driver circuit, is amplified in order to the switch controlling signal with this microprocessing unit, to control the action of this switching circuit.
5, as the said digital type light-adjusting circuit of claim 1, it is characterized in that: wherein this power output ratio value is that the boundary is between 0-100%.
6, as the said digital type light-adjusting circuit of claim 1, it is characterized in that: wherein the calculating of this power output ratio value is to calculate according to sinusoidal wave effective value (RMS value).
7, as the said digital type light-adjusting circuit of claim 1, it is characterized in that: wherein this switching circuit is a two-way thyristor.
8, as the said digital type light-adjusting circuit of claim 1, it is characterized in that: it more includes loudspeaker, in order to produce sound effect signal.
9, as the said digital type light-adjusting circuit of claim 1, it is characterized in that: wherein this switch controlling signal width is the needed width of bidirectional triode thyristor element triggering and conducting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00132152A CN1359255A (en) | 2000-12-18 | 2000-12-18 | Digital type light-adjusting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00132152A CN1359255A (en) | 2000-12-18 | 2000-12-18 | Digital type light-adjusting circuit |
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| CN1359255A true CN1359255A (en) | 2002-07-17 |
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| CN00132152A Pending CN1359255A (en) | 2000-12-18 | 2000-12-18 | Digital type light-adjusting circuit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8193730B2 (en) | 2008-06-12 | 2012-06-05 | 3M Innovative Properties Company | Dimmer and illumination apparatus with amplitude ordered illumination of multiple strings of multiple color light emitting devices |
| CN102548122A (en) * | 2010-10-24 | 2012-07-04 | 理察·蓝德立·葛瑞 | Device and method for setting adjustment control |
| WO2015021706A1 (en) * | 2013-08-15 | 2015-02-19 | 京东方科技集团股份有限公司 | Dimming circuit and dimmable lighting device |
| WO2015051592A1 (en) * | 2013-10-11 | 2015-04-16 | 东林科技股份有限公司 | Control method of multiple lamps |
| WO2021000433A1 (en) * | 2019-07-04 | 2021-01-07 | 浙江阳光美加照明有限公司 | Precise timing switch led lamp, and precise timing drive circuit for same |
-
2000
- 2000-12-18 CN CN00132152A patent/CN1359255A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8193730B2 (en) | 2008-06-12 | 2012-06-05 | 3M Innovative Properties Company | Dimmer and illumination apparatus with amplitude ordered illumination of multiple strings of multiple color light emitting devices |
| CN102548122A (en) * | 2010-10-24 | 2012-07-04 | 理察·蓝德立·葛瑞 | Device and method for setting adjustment control |
| CN102548122B (en) * | 2010-10-24 | 2015-09-02 | 理察·蓝德立·葛瑞 | Configuration setup control device and control method thereof |
| WO2015021706A1 (en) * | 2013-08-15 | 2015-02-19 | 京东方科技集团股份有限公司 | Dimming circuit and dimmable lighting device |
| WO2015051592A1 (en) * | 2013-10-11 | 2015-04-16 | 东林科技股份有限公司 | Control method of multiple lamps |
| CN104582057A (en) * | 2013-10-11 | 2015-04-29 | 东林科技股份有限公司 | Control method for multiple lamps |
| WO2021000433A1 (en) * | 2019-07-04 | 2021-01-07 | 浙江阳光美加照明有限公司 | Precise timing switch led lamp, and precise timing drive circuit for same |
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