CN102783252A - Control signal generator for a dimmer circuit - Google Patents
Control signal generator for a dimmer circuit Download PDFInfo
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- CN102783252A CN102783252A CN2011800100644A CN201180010064A CN102783252A CN 102783252 A CN102783252 A CN 102783252A CN 2011800100644 A CN2011800100644 A CN 2011800100644A CN 201180010064 A CN201180010064 A CN 201180010064A CN 102783252 A CN102783252 A CN 102783252A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
- H05B39/04—Controlling
- H05B39/041—Controlling the light-intensity of the source
- H05B39/044—Controlling the light-intensity of the source continuously
- H05B39/048—Controlling the light-intensity of the source continuously with reverse phase control
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/165—Controlling the light source following a pre-assigned programmed sequence; Logic control [LC]
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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
Abstract
Disclosed is a control signal generator (140) for use in a phase control dimmer circuit (100). The control signal generator (140) generates as an output (7), either a user input signal (6) if the user input signal (6) is greater than or equal to a conduction threshold, or a boost signal (145) if the user input signal (6) is less than the conduction threshold. The output (7) is used to control the firing angle of the phase control dimmer circuit (100) and may be used to control a load (10) such as a compact fluorescent light (CFL). Also disclosed are a method of generating a control signal and a phase control dimmer circuit.
Description
Technical field
The present invention relates to be used for controlling dimmer circuit such as the load of compact fluorescent lamp (CFL).
Prioity claim
The application require in the application number that on February 18th, 2010 submitted to be 2010900685, title is the priority of the Australian temporary patent application of " Control Signal Generator For A Dimmer Circuit ".
Full content with the document merges among this paper by reference.
Quote adding
Among the application with reference to following document:
Title is the PCT/AU03/00365 of " Improved Dimmer Circuit Arrangement ";
Title is the PCT/AU03/00366 of " Dimmer Circuit with Improved Inductive Load ";
Title is the PCT/AU03/00364 of " Dimmer Circuit with Improved Ripple Control ";
Title is the PCT/AU2006/001883 of " Current Zero Crossing Detector in A Dimmer Circuit ";
Title is the PCT/AU2006/001882 of " Load Detector For A Dimmer ";
Title is the PCT/AU2006/001881 of " A Universal Dimmer ";
Title is the PCT/AU2008/001398 of " Improved Start-Up Detection in a Dimmer Circuit ";
Title is the PCT/AU2008/001399 of " Dimmer Circuit With Overcurrent Detection "; And
Title is the PCT/AU2008/001400 of " Overcurrent Protection in a Dimmer Circuit ".
Full content with each document in these documents merges among this paper by reference.
Background technology
Phase controlled light modulator circuit (be also referred to as light adjusting circuit or abbreviate dimmer as) is used to control from the power supply of for example civil power to be provided to the power of the load of for example lamp or motor.Sort circuit uses the technology that is called as phase control dimming usually.This allows to be used to connect the load to through change the time quantum of switch conducting in period demand of power supply, controls the power that provides to load.
For example, if the voltage that power supply provides can represent by sine wave, then when the switch that is used to connect the load to power supply is connected always, maximum power is provided to load.In this way, whole energy of power supply are transferred to load.If at a part of cut-off switch of each cycle (positive period and negative cycle), then the sine wave of certain proportion amount effectively with load isolation, thereby reduced the average energy that offers load.For example, if switch switches on and off a half period in each cycle, then only there is half the power can be transferred to load.For example under the situation of lamp, whole structure will be the level and smooth light modulation action that produces the brilliance control of lamp.
Modern phase control dimming circuit is worked along one of this dual mode with forward position or back usually.
Ahead of the curve in the technology, dimmer circuit " cut-out " or block the conduction of load in the front portion (therefore claiming " forward position ") of every half period.In the back along in the technology, dimmer circuit " cut-outs " or block the conduction of load in the rear portion of every half period.
Figure 1A illustrates the expression of the function of forward position dimmer, the electric current I through load shown in it
L, and Figure 1B illustrates the function of back along dimmer.
Fig. 2 A illustrates the phase controlled light modulator circuit (or dimmer circuit) 1 of typical prior art; It (for example comprises switch 4; Solid-state switch such as bi-directional thyristor switch); As one skilled in the art should appreciate that, this switch 4 arrives load 10 according to the timing signal that timing control circuit 3 provides with current switching.Timing control circuit 3 is confirmed the angle (trigger angle) of switch 4 triggering and conducting, flows into load 10 to allow electric current.The output 5 ' of timing control circuit 3 (being provided as drive signal) is controlled by input 5 timing control circuit 3, that be control voltage.The value of this control voltage 5 can be operated the user through the user and interface 2 (such as potentiometer or digital switch) can be set be changed.
The user can be provided with interface 2 with the user and be provided with highly more, and the control voltage 5 that imposes on timing control circuit 3 is just high more, and drive signal 5 is just high more, thereby the angle of flow is just big more.The bigger angle of flow causes the higher brightness of lamp.Fig. 2 B illustrates the typical transfer function of user control signal/control signal/control voltage/drive signal about the angle of flow.
Operable one type load is compact fluorescent lamp (CFL).Compact fluorescent lamp (CFL) is used as the light source more energy-conservation than conventional incandescent just gradually.The shortcoming of CFL is: because CFL maybe be very unstable when hanging down the angle of flow, thereby more difficult through phase control illumination dimmer control CFL.Particularly, when the dimmer control setting is set to low-level (or low angle of flow), utilize standard dimmers, the startup meeting of these loadtypes is unreliable or impossible in some cases.At present, in order to realize the reliable startup of CFL load, the user must guarantee usually: before can being transferred to than low brightness level after the CFL heating, the dimmer control setting is set to surpass about 50% the level of maximum conducting period.
Description of drawings
To various aspects of the present invention be described with reference to following accompanying drawing now, wherein:
Figure 1A illustrates the expression of the function of forward position phase controlled light modulator;
Figure 1B illustrates the expression of the function of after-edge phase controlled light modulator;
Fig. 2 A illustrates the phase controlled light modulator of typical prior art and arranges;
Fig. 2 B illustrates the typical transfer function of control voltage about the angle of flow;
Fig. 3 illustrates an example of the layout of phase controlled light modulator circuit according to an aspect of the present invention;
Fig. 4 A illustrates the layout of the Fig. 3 with low user's setting;
Fig. 4 B illustrates the load current I to selected user's setting of Fig. 4 A
L
Fig. 4 C illustrates " excitation " or starts the load current I in the period
L
Fig. 5 A illustrates the layout of the Fig. 3 with high user's setting;
Fig. 5 B illustrates the load current I to selected user's setting of Fig. 5 A
L
Fig. 5 C illustrates from the load current I of control-signals generator output
L
Fig. 6 A is illustrated in " excitation " or starts in the period and " excitation " or the startup period rear drive signal curve chart about the time.
Fig. 6 B illustrates the revision of the curve chart of Fig. 6 A that has to tilt to rise and tilt to descend the period;
Fig. 6 C illustrates the period of tilt rising and is longer than to tilt to descend the period;
Fig. 6 D illustrates the period of tilt rising and is shorter than to tilt to descend the period;
Fig. 6 E illustrates and does not have to tilt to rise the period but exist to tilt to descend the period;
Fig. 6 F illustrates and has to tilt to rise the period but do not exist to tilt to descend the period;
Fig. 6 G illustrates and uses and semi-steep inclination rising period and inclination decline period;
Fig. 7 illustrates the load current I according to the drive signal change of Fig. 6 B
L
Fig. 8 illustrates the difference of the phase controlled light modulator circuit of Fig. 3 and arranges;
Fig. 9 illustrates the another layout of the phase controlled light modulator circuit of Fig. 3;
Figure 10 A illustrates the The general frame of an embodiment of control-signals generator;
Figure 10 B illustrates the block diagram of another embodiment of control-signals generator;
Figure 11 illustrates the circuit arrangement of an embodiment of control-signals generator;
Figure 12 illustrates the Digital Implementation of the phase controlled light modulator circuit of Fig. 3;
Figure 13 illustrates the flow chart of the step of being carried out by microcontroller shown in Figure 12;
Figure 14 illustrates the flow chart of generalized methodology that is used to generate control signal according to an embodiment; And
Figure 15 illustrates the block diagram according to the generality embodiment of the phase controlled light modulator circuit of the embodiment that describes among this paper.
Summary of the invention
On aspect the generality, a kind of control-signals generator that is used for the phase controlled light modulator circuit is provided.Control-signals generator generates the user in user input under more than or equal to the situation of conduction threshold and imports as output, perhaps generates boost signal as output in user's input under less than the situation of conduction threshold.This output is used to control the trigger angle of dimmer circuit and can be used for the load of control such as compact fluorescent lamp (CFL).
In one aspect, a kind of control-signals generator that is used for the phase controlled light modulator circuit is provided, said control-signals generator comprises:
Input is used to receive the input signal of representing user control signal;
The boost signal generator is used for starting under less than the situation of conduction threshold at said user control signal and generates the boost signal that is equal to or greater than said conduction threshold in the period; And
Output is used for the said boost signal of output under the situation that has generated boost signal.
In one embodiment, under the situation that does not generate boost signal, output output input signal.
In one embodiment, input signal is a user control signal.
In one embodiment, input signal is the drive signal by the timing control circuit generation of phase controlled light modulator circuit.
In one embodiment, start the period between about 0.5 second to about 5 seconds.
In one embodiment, starting the period is about 2 seconds.
In another embodiment, starting the period is about 4 seconds.
In one embodiment, the startup period starts from tilting to rise the period.
In one embodiment, the startup period ends to tilt to descend the period.
In one embodiment, conduction threshold is confirmed by the voltage divider of two resistors.
In one embodiment, the startup period is confirmed by RC network.
In one embodiment, control-signals generator is provided by microcontroller.
In one embodiment, output is provided for inputing to the control signal of the timing control circuit of phase controlled light modulator circuit.
In one embodiment, output is provided for inputing to the controlling and driving signal of the switch of phase controlled light modulator circuit.
In one embodiment, between about 50% of the conduction threshold on-Line Voltage half period to about 100%.
In one embodiment, conduction threshold is about 80% of a line voltage half cycle.
In yet another aspect, a kind of method that is used for generating the control signal that the phase controlled light modulator circuit uses is provided, this method comprises:
Receive the input of expression user control signal;
Under the situation of said user control signal, in the startup period, generate the boost signal that is equal to or greater than said conduction threshold less than conduction threshold; And
The said boost signal of output under the situation that has generated boost signal.
In one embodiment, this method also comprises: under the situation that does not generate boost signal, and the output input signal.
In another embodiment, starting the period is about 2 seconds.
In another embodiment, starting the period is about 4 seconds.
In another embodiment, had before the startup period to tilt to rise the period.
In another embodiment, have after the startup period to tilt to descend the period.
In yet another aspect, a kind of phase controlled light modulator circuit that is used for the power of control transmission to load is provided, said phase controlled light modulator circuit comprises:
Input is used for receiving user control signal from user's control section;
Control-signals generator; Be used under the situation of said user control signal, the control signal as user control signal being provided more than or equal to conduction threshold; Perhaps under the situation of user control signal less than conduction threshold, be provided as the control signal of boost signal, wherein said boost signal is more than or equal to conduction threshold;
Timing control circuit, it generates drive signal in response to said control signal; And
Switch, be used to respond said drive signal with current switching to load.
Embodiment
Fig. 3 illustrates the block diagram of phase controlled light modulator circuit (or dimmer circuit) 100; It (for example comprises switch 110; Solid-state switch such as bi-directional thyristor switch); As one skilled in the art should appreciate that switch 110 9 switches to load 10 with electric current from the source according to the timing signal that is provided as switching drive signal 8 by timing control circuit 120.Timing control circuit 120 is confirmed the angle (trigger angle or the angle of flow) of switch 110 triggering and conducting, flows into load 10 to allow electric current.Control by being provided as output switching drive signal 8, timing control circuit 120 as input control signal 7, timing control circuit 120.Can operate the user through the user and control 130 (such as potentiometer or digital switchs), produce user control signal 6, change the value of this control signal 7.
If load 10 is compact fluorescent lamp (CFL), then the user user is controlled 130 be provided with too lowly situation under, be difficult to control the brightness of this load.This will cause CFL to become unstable and possibly glimmer, and perhaps can not connect at all.
An embodiment according to an aspect of the present invention; Provide " excitation " circuit that is provided in one embodiment as control-signals generator 140; Control-signals generator 140 generates or provides suitable boost signal as control signal 7, and this control signal 7 is enough greatly to avoid this unsteadiness.
In a concrete example; If the angle of flow through user control signal 6 expression less than the loaded work piece threshold value (in one example; Be about the maximum conducting period 50%), then control-signals generator 140 is enough to generation to provide boost signal or the control signal or the voltage 7 of the angle of flow that is equal to or greater than the loaded work piece threshold value.
In order to make the dimmer circuit 100 can be with the stationary mode control load, conduction threshold be set to be equal to or greater than the loaded work piece threshold value.In one example, conduction threshold is set to equal about 50% of line voltage half cycle.Should be understood that for each load, the loaded work piece threshold value (that is, and CFL be equal to or greater than under this threshold value situation will be with stable mode work) can be different, and this can confirm through testing.In one example, conservative method is that conduction threshold is set to far surpass the loaded work piece threshold value, for example, is set to 80% of line voltage half cycle.
In another example, conduction threshold the maximum conducting period about 50% to about 80% between.Conduction threshold can be for comprising the following value that is fit to arbitrarily: between about 50% to about 100%, between about 50% to 60%, about 55%, between about 50% to about 70%, about 60%, between about 50% to about 90%, about 70%, about 80%, about 90%, between about 80% to about 100%, about 85% and about 95%.
Should be understood that the maximum conducting period of dimmer circuit 100 is less than the line voltage half cycle in 2 line dimmers are used.For example, for the 50Hz system with 10ms half period, 80% (8ms) of maximum dimmer conducting period is typical.In 3 line dimmers were used, 100% maximum dimmer conducting period was possible.
In 2 line dimmers are used; Under the situation of using the CFL load; Keep the operation in each half period because dimmer circuit 100 needs to receive a certain line voltage, thereby pass through the actual attainable maximum conducting period of CFL load characteristic restriction dimmer circuit 100.For example, the CFL of situation difference will cause the admissible maximum conducting period of dimmer circuit 100 to be approximately 6ms.In this example, actuation event or start the period during conducting period dimmer half period will approach dimmer circuit the admissible maximum conducting period 100% (that is, 6ms).
Be not suitable for the design of 3 line dimmers because 2 lines are used, thus actuation event or start the period during minimum conducting period half period 50% will be enough.
Therefore; CFL loadtype for the situation difference; Actuation event or conducting period dimmer half period during the startup period can arrive in about 100% the scope in about 65% of maximum half conducting period in cycle of dimmer; Perhaps alternately, can stipulate: actuation event or conducting period dimmer half period during the startup period can be about 60% (6ms) of line voltage half cycle.
Fig. 4 A illustrates to have the user who is set to low setting the (for example be about maximum be provided with 20%) and controls 130 dimmer circuits 100 (also being expressed as potentiometer dial 131), Fig. 3.When the lamp (load 10) just connected by dimmer circuit 100 controls, dimmer circuit 100 can be provided with this user usually impose on load 10.In load 10 is under the situation of CFL, because the user is provided with far below for example 50% the loaded work piece threshold value maximum conducting period or the line voltage half cycle conducting period, it is unstable that CFL can become.
Fig. 4 B is illustrated in the back along 20% user the load current I under the situation being set under the pattern
LCan find out that 0 spends to the only sub-fraction (about 20%) of full conducting period of 180 degree and is used to the load transmission current.Fig. 4 B illustrates following situation: the loaded work piece threshold value of this load is about 50%, and the conduction threshold of selecting in this case is about 80%.
Fig. 4 C illustrates the equivalent load electric current I when using this aspect of the present invention in this example
LWherein, control-signals generator 140 generates the boost signal control signal (for example controlling voltage) 7 of following level: this level makes timing control circuit 120 be in the switching drive signal 8 of startup period generation control switch 110 at about 80% selected conduction threshold.Fig. 4 C illustrates the load current that transmits under about 80% the level that far surpasses 50% loaded work piece threshold value.
Therefore, in this uses, owing to generated boost signal, thereby control-signals generator 140 is output as boost signal.
Be enough at CFL (load 10) heating with the lower setting or the angle of flow keep stable before, this higher electric current makes CFL to connect and with stable mode work.
Fig. 5 A illustrates the layout of Fig. 4 A, controls 130 (such as potentiometer dials 131) but wherein with about 90% of maximum setting the user is set.Owing in this example the conduction threshold greater than selected 80% should be set; This means that user's selected level when connecting is enough high and can be with stationary mode control load (CFL) 10, so the control-signals generator 140 outputs signal identical with importing user control signal 6 is as control signal 7.This output can for real input signal or generate by control-signals generator 140, with the new signal of input user control signal 6 pars.
Fig. 5 B is illustrated in the back along the load current I under the situation that 90% user is provided with under the pattern
LFig. 5 B illustrates following situation: the loaded work piece threshold value of this load is about 50%, and the conduction threshold of selecting in this case is about 80%.In this case, this user the load current I that generates down is set
LBe in 90%, it is much larger than 80% selected conduction threshold.
Fig. 5 C illustrates the load current I by the output generation of control-signals generator 140
LIn this case, because this level is greater than with the floor level of stationary mode service load (that is, greater than 80% selected conduction threshold), control-signals generator 140 does not need to change, thereby this waveform is identical with waveform among Fig. 5 B.
Fig. 6 A illustrates the example that the switching drive signal 8 (in one example, through increasing the control signal 7 that is generated by control-signals generator 140) that how to pass through to increase as boost signal is used higher conduction threshold.Can find out, when load 10 is connected by the user and confirmed that user control signal 6 is lower than selected conduction threshold, make switching drive signal or boost signal uprise (for example peaked 80%), thereby the load current shown in Fig. 4 C is provided.After load was connected or powered on, drive signal that this is higher and resulting load current only applied very short time (starting the period).This time is selected to long enough so that fully heating of CFL, thus with lower setting or the angle of flow with stationary mode work.In one example, shown in Fig. 6 A, this time is about 5 seconds.Yet; Should understand; This period can be shorter or longer, comprising: about 0.5 second, about 1 second, about 1.5 seconds, about 2 seconds, about 2.5 seconds, about 3 seconds, about 3.5 seconds, about 4 seconds, about 4.5 seconds, about 5 seconds, about 5.5 seconds, about 6 seconds, about 6.5 seconds, about 7 seconds, between about 5 seconds to about 10 seconds or more.
Select the period (starting the period) afterwards at the use boost signal as being somebody's turn to do of switching drive signal 8; Control signal 7 and follow-up switching drive signal 8 are set to user control signal 6; So that dimmer circuit 100 with user's selected level (for example; In this case, be about 20%) control CFL or load 10.Then, regulate this load current once more with before the illumination level that adopts expectation by the user according to the common operation of dimmer circuit 100 in the back, load current will appear as shown in Fig. 4 B.For example, the user can determine to reduce the user and be set to about 10% maximum the setting so that user control signal 6 to be provided, thereby reduces the brightness of CFL load 10.Because CFL heating, thereby can it be reduced to any desired setting with stationary mode.Under another situation, the user can determine to increase the user and be set to about 50% to improve the brightness of CFL.
In another embodiment, shown in Fig. 6 B, the improvement of above example comprises provides gap tilt effect to realize the boost signal as switching drive signal 8.Replace effectively that " moment " reaches for example 80% the selected conduction threshold when connecting, in the period is risen in for example about 0.5 second inclination, tilt to rise to about 80% from about 0% as the boost signal of drive signal 8.Should understand; This period of tilting to rise can be any rational period; Be included in any time between about 0 second to about 1 second, thereby comprise: about 0.1 second, about 0.2 second, about 0.3 second, about 0.4 second, about 0.5 second, about 0.6 second, about 0.7 second, about 0.8 second, about 0.9 second and about 1 second.
In case obtained boost signal or conduction threshold level; The selected period (in Fig. 6 B, being shown as about 4 seconds) that just can this boost signal or conduction threshold horizontal application as above be described about Fig. 6 A, make it in the period of tilting to descend, tilt to drop to user's selected level of confirming as by user control signal 6 once more then.In this example, the period that tilt to descend is roughly the same with about 0.5 second inclination rising period, and it needs not to be this situation.In certain embodiments, segment length (for example Fig. 6 C) when the period of tilting to rise descends than inclination, and in other embodiments; Segment length (for example Fig. 6 D) when the period ratio that tilts to descend tilts to rise; Perhaps even in some other embodiment, tilt to rise the period, have only and tilt to descend the period (for example Fig. 6 E); And in other embodiment of other, have only the period and tilt to descend the period (for example Fig. 6 F) of tilt rising.
In other embodiments, can with tilt to rise and/or tilt to descend be provided as have arc top and arc terminal " and low-angle dip " so that more level and smooth transition to be provided.Fig. 6 F is depicted as and semi-steep inclination is risen, and Fig. 6 G illustrates to be and rises with semi-steep inclination and tilt to descend the two.
Fig. 7 illustrates the I like Fig. 4 B and 4C
LEquivalent schematic, but its inclination with boost signal or higher drive signal of Fig. 6 B is used.As shown, when initial turn-on, load current I
LWith about 20% of maximum conducting is that starting point begins tilt to rise, and rises to approximately 30% then in cycle tilt subsequently, tilts to rise to about 40% then, reaches about 80% selected conduction threshold (in this example) up to it.Keeping should value a period of time (for example, about 4 seconds), begins to tilt to drop to about 40% then, drops to approximately 30% then in subsequently cycle tilt, tilts to drop to user's selected level of about 20% then, I in remaining subsequent cycle
LKeep this user's selected level, till the user regulates dimming level later on, should understand like those skilled in that art, dimmer circuit 100 will respond in a conventional manner this moment.
The cycle shown in Fig. 6 that should be understood that only is representational, can before inclination rises to next conducting angle, keep given several cycles of the angle of flow.Should understand like those skilled in that art, the number in cycle confirmed by the expected time length that needs the angle of flow.Should also be understood that the angle of flow can tilt to rise to selected conduction threshold smoothly, for example, before reaching selected conduction threshold, it is about 50%, 60% and 70% that the angle of flow can be applied to, and can tilt to drop to about 70%, about 60%, about 50% similarly.For simply, not shown these situation of Fig. 7.
Should also be understood that many other configurations of the circuit that can use Fig. 3.For example, in Fig. 8, the control-signals generator 140 between timing control circuit 120 and switch 110 is shown.In this case, user control signal 6 is in being directly inputted to timing control circuit 120 in the traditional arrangement, and control-signals generator 140 receives drive signal 8 as user control signal 6 from timing control circuit 120.In this arrangement, control-signals generator 140 still receives user control signal 6 as its input, and just form is a drive signal 8.Should be understood that in this configuration, drive signal 8 and user control signal 6 equivalences, proportional or representative of consumer control signal 6, and representative of consumer is controlled user's setting that 130 places are provided with the user.If control-signals generator 140 confirms that the switching drive signal 8 that is generated by timing control circuit 120 is too low (promptly; Low user's selection result during as connection; This makes drive signal generation is lower than the angle of flow of selected conduction threshold); The boost signal that control-signals generator 140 is used to generation to regulate input drive signal 8 to be generating drive signal 8 ', thereby makes switch 110 locate to connect above with reference to the initial start period (for example about 5 second) of Fig. 6 A to the 6G description at selected conduction threshold (for example about 80% of maximum conducting).
Fig. 9 illustrates another possible configuration; In this configuration; Be connected in control-signals generator 140 operation and be connected to switch 110 (through wired, wireless or the two combination) in user's control 130 (through wired, wireless or the two combination) and operation; If thereby user's selected level then provides the required increase of drive signal as boost signal less than selected conduction threshold, connect the initial period at selected conduction threshold or above selected conduction threshold place with driving switch 110.If in initial CFL heating or start that user's selected level is equal to or greater than selected conduction threshold in the period, then control-signals generator 140 is not taked retouching operation.
In generality embodiment, control-signals generator 140 comprises: input 141 is used to receive the input signal of representing user control signal; Boost signal generator 142 is used for starting under less than the situation of conduction threshold at user control signal and generates the boost signal that is equal to or greater than conduction threshold in the period; And output 142, under the situation that has generated boost signal, output 142 these boost signals of output.
In one embodiment, under the situation that does not generate boost signal, output 142 output input signals.
Figure 10 A illustrates the block diagram of an embodiment of control-signals generator 140.Be illustrated in the control-signals generator of using in the phase controlled light modulator circuit with conducting period 140.In this embodiment, control-signals generator 140 comprises input 141, and it is used for receiving the input signal of expression user control signal (6).Control-signals generator 140 also comprises boost signal generator 142, and under the situation of user control signal 6 less than conduction threshold, boost signal generator 142 generates the boost signal 145 that is equal to or greater than conduction threshold in the startup period.Control-signals generator 140 also comprises output 142, and output 142 is exported input signal 6 under the situation that does not generate boost signal, perhaps output boost signal 145 under the situation that has generated boost signal.The output signal will be provided as above-mentioned control signal 7.
In some embodiment shown in Figure 10 B, control-signals generator 140 comprises comparator 143, and comparator 143 is used for input user control signal and selected conduction threshold are compared.If user control signal is less than selected conduction threshold, then boost signal generator 142 will generate boost signal 145.If generated boost signal 145, then will export boost signals 145 as control signal 7 from control-signals generator 140 at output 142 places.If do not generate boost signal 145 (for example because user control signal more than or equal to selected conduction threshold), then control-signals generator 140 will be exported user control signal 6 as control signal 7 at output 142 places.Accomplish and to confirm at piece 144 places.
In one embodiment, start the period between about 0.5 second to about 5 seconds.In another embodiment, the startup period is about 2 seconds.In another embodiment, the startup period is about 4 seconds.
In one embodiment, the startup period starts from and tilts to rise the period.In another embodiment, the startup period ends at and tilts to descend the period.
Figure 11 illustrates the example of an embodiment of the circuit embodiments that is used for signal controlling generator 140.In this circuit of " excitation " characteristic is realized, use RC timing network (R5/C1) to come interim activating transistor (Q1) to apply the control voltage of increase.Resitstance voltage divider (R2 and R3) is according to supply voltage V
CCPercentage recently confirm the conduction threshold setting.Diode (D1) prevents that Loading Control voltage potential meter (in one example) or user control 130 to voltage divider unfriendly during normal running.CONTROLLED POTENTIAL meter cursor slide series resistance (R1) prevents the loading effect to the driving voltage level.
In one embodiment, following assembly and the components values of selecting to be used for realizing approximate 2 seconds " excitation " or conduction threshold period:
R1=2M2
R2=15k
R3=100k
R4=220k
R5=1M5
C1=2.2uF
VR1=500k
Q1=BC858
D1=BAV19
VCC=12V
Those skilled in the art is known: select different values to realize the different periods, for example above-mentioned 4 seconds or 5 second period.
Control under 130 situation about being set near the initial minimum level that starts or connect (for example 10% of the maximum conducting period) the user of input signal as the expression user control signal, circuit moves as follows.And then the incident that powers on (connecting active dimmer) afterwards, capacitor C1 has zero charging voltage, the basic bias current that therefore the is used for activating transistor Q1 R5 that flows through.Voltage divider resistance R 2 and R3 confirm to impose on the final voltage of the anode of diode D1, so the virtual voltage (or signal) that control-signals generator 140 generates is lowered the amount that equates with the D1 forward drop.In this example, can see, selected conduction threshold equal about 10ms the line voltage half cycle conducting period the maximum conducting period about 80%.Should understand like those skilled in that art, this can export as the about 0.87VCC of (R3/ (R2+R3)) * VCC=(100/115) * VCC=according to the voltage of the anode that is applied to D1.If VCC=12V, the voltage that then puts on R1 is about 10.44V.Suppose that D1 has the forward voltage drop of about 0.5V, then generate of the output of the voltage of about 9.94V as circuit.This equals the 9.94/12=82% of maximum controlling voltage or about 80%, and it equals to be selected as about 80% (or about 6.4ms) conduction threshold, the maximum conducting period.
Like previous description; In this embodiment, as shown in Figure 3, be used as the input that output signal control signal 7, this generation or boost signal are applied in timing control circuit 120 in this case; Perhaps; In other embodiments, shown in the layout of Fig. 8 and Fig. 9, the drive signal 8 ' that makes an amendment is directly used in the output of control-signals generator 140.Potentiometer series buffer resistance device R1 has sufficiently high value to make and not to allow potentiometer resistance to be loaded into the R2/R3 voltage divider unfriendly.The input impedance of timing control circuit 120 makes during normal running, can load the potentiometer output voltage significantly greater than the value of R1 sharply.
Control under 130 situation about being set near maximum horizontal (for example about 90%) CONTROLLED POTENTIAL meter or user as the input of expression user control signal, the function of circuit is following.In this case; The potentiometer output voltage is directly put on timing control circuit through R1; This is because the potentiometer output voltage amplitude surpasses the amplitude of the voltage of voltage divider R2/R3; Thereby diode D1 is reverse biased to produce blocking state, therefore " excitation " incident does not take place, and the configuration that the depends on dimmer circuit value that generates user control signal as the output of signal controlling generator 140 perhaps as control signal 7 or drive signal 8.This point in the circuit provides comparator 143 functions and piece 144 functions of Figure 10 B.
Because the user control signal that the user selectes produces the angle of flow greater than loaded work piece threshold value (in fact greater than selected conduction threshold), so CFL can connect with stable mode.After the CFL heating, regulate dimming level if the user is follow-up, then dimmer can operate as normal also can carry out light modulation to CFL with stationary mode.
Figure 12 illustrates the another possible layout or the embodiment of phase controlled light modulator circuit 100.In this arranged, microcontroller 150 provided the functional of control-signals generator 140 and timing control circuit 120.The user control signal 6 that is input as the input signal of controlling as the expression user of microcontroller 150, and be output as the boost signal that is provided as drive signal 8, it is applied in to switch 110.
As one skilled in the art should appreciate that, in fact, in certain embodiments; Microcontroller 150 provides other function of dimmer circuit 100; Perhaps in other embodiments, microcontroller 150 provides some function simply, and the function of control-signals generator for example only is provided.
Figure 13 illustrate by microcontroller 150 provide functional so that the function of control-signals generator 140 to be provided.
At step 201 place, when connecting, read the user and control 130 output, the input signal that this is output as user control signal 6 and is used as the expression user control signal.In step 202, confirm the level of this input.If this level is greater than selected conduction threshold; Then generate of the output of this level as microcontroller 150; For example, as the control signal that will be applied to timing control circuit 120 (providing), perhaps as the drive signal that directly is applied to switch 110 for individual components or by microcontroller itself.
If input level is confirmed as and is less than or equal to selected conduction threshold at step 202 place; Then as boost signal this level is increased to or surpasses selected conduction threshold at step 203 place; Keep the selected period of this level (starting the period) (for example 0.5 second, 1 second, 2 seconds, 3 seconds, 4 seconds or 5 seconds) at step 204 place, after step 205 is in the startup period, turn back to user's selected level then.
In this concrete example shown in figure 13, it is peaked 70% that selected conduction threshold is about, but certainly, as discussed previously, selected conduction threshold can have any suitable value that is equal to or greater than the loaded work piece threshold value.
The suitable false code that microcontroller 150 is used to implement above method with reference to Figure 13 general introduction is following:
In above pseudo-code example, conduction threshold is selected as about 80%.Only should be understood that needs when connecting and carries out these steps after the unsupported heating.Can directly use follow-up user variation is set.As one skilled in the art should appreciate that, exist to be used for the many methods whether definite load connects.
Among the embodiment in yet another aspect, the generalized methodology that is used for generating the control signal that the phase controlled light modulator circuit uses is provided.In this embodiment; This method comprises: receive the input of expression user control signal; Starting under at user control signal and to generate the boost signal that is equal to or greater than conduction threshold in the period less than the situation of conduction threshold, and under the situation that has generated boost signal this boost signal of output.In another embodiment, this method also comprises: under the situation that does not generate boost signal, export input signal.
In another embodiment, the generalized methodology that is used for generating the control signal that the phase controlled light modulator circuit uses is provided.Shown in figure 14, in step 301, receive the input of expression user control signal.In step 302, generate the boost signal be equal to or greater than conduction threshold under less than the situation of conduction threshold at user control signal; And in step 303, control signal is outputted as input signal under the situation that does not generate boost signal, perhaps under the situation that has generated boost signal, is outputted as boost signal.
In one embodiment, start the period between about 0.5 second to about 5 seconds.In another embodiment, the startup period is about 2 seconds.In another embodiment, the startup period is about 4 seconds.
In one embodiment, the startup period starts from tilting to rise the period.In another embodiment, the startup period ends at and tilts to descend the period.
Go up in yet another aspect, shown in figure 15, the phase controlled light modulator circuit 100 of the power that is used for control transmission to load also is provided synoptically.In this embodiment, dimmer circuit 100 comprises: input 101 is used for receiving user control signal 6 from user's control (not shown in this view); Control-signals generator 140; Be used under the situation of user control signal 6, providing control signal 7 to be user control signal 6, perhaps under the situation of user control signal 6, provide control signal 7 to be boost signal more than or equal to conduction threshold less than conduction threshold more than or equal to conduction threshold.In this embodiment, dimmer circuit 100 also comprises: the timing control circuit 120 that is used for generating in response to control signal 7 drive signal 8; And be used in response to drive signal 8 switch 110 of current switching to load (not shown in this view).
The various aspects of more than describing can be applied to or be incorporated in any suitable phase control dimming circuit; Comprise forward position dimmer, back along dimmer and general dimmer, and comprise the dimmer of describing in detail in the following document: title is the PCT/AU03/00365 of " Improved Dimmer Circuit Arrangement "; Title is the PCT/AU03/00366 of " Dimmer Circuit with Improved Inductive Load "; Title is the PCT/AU03/00364 of " Dimmer Circuit with Improved Ripple Control "; Title is the PCT/AU2006/001883 of " Current Zero Crossing Detector in A Dimmer Circuit "; Title is the PCT/AU2006/001882 of " Load Detector For A Dimmer "; Title is the PCT/AU2006/001881 of " A Universal Dimmer "; Title is the PCT/AU2008/001398 of " Improved Start-Up Detection in a Dimmer Circuit "; Title is the PCT/AU2008/001399 of " Dimmer Circuit With Overcurrent Detection "; And title is the PCT/AU2008/001400 of " Overcurrent Protection in a Dimmer Circuit ".
In whole specification and appended claims, only if requirement is arranged in the literary composition in addition, otherwise word " comprises " and " comprising " and distortion thereof will be understood that to mean and comprise the whole of regulation or whole group, yet does not get rid of other whole or whole group arbitrarily.
In this specification quoting of any prior art is not and should be understood that to admit with the arbitrary form suggestion: this prior art constitutes the part of common practise.
Claims (24)
1. control-signals generator that is used for the phase controlled light modulator circuit, said control-signals generator comprises:
Input is used to receive the input signal of representing user control signal.
The boost signal generator is used for starting under less than the situation of conduction threshold at said user control signal and generates the boost signal that is equal to or greater than said conduction threshold in the period; And
Output is used for the said boost signal of output under the situation that has generated said boost signal;
2. control-signals generator according to claim 1, wherein, said output is exported said input signal under the situation that does not generate boost signal.
3. control-signals generator according to claim 1 and 2, wherein, said input signal is said user control signal.
4. control-signals generator according to claim 1 and 2, wherein, said input signal is the drive signal by the timing control circuit generation of said phase controlled light modulator circuit.
5. according to each described control-signals generator in the claim 1 to 4, wherein, the said startup period is between about 0.5 second to about 5 seconds.
6. control-signals generator according to claim 5, wherein, the said startup period is about 2 seconds.
7. control-signals generator according to claim 5, wherein, the said startup period is about 4 seconds.
8. according to each described control-signals generator in the claim 5 to 7, wherein, the said startup period starts from tilting to rise the period.
9. according to each described control-signals generator in the claim 5 to 8, wherein, the said startup period ends to tilt to descend the period.
10. according to each described control-signals generator in the claim 1 to 9, wherein, said conduction threshold is confirmed by the voltage divider of two resistors.
11. according to each described control-signals generator in the claim 1 to 10, wherein, the said startup period is confirmed by RC network.
12. according to each described control-signals generator in the claim 1 to 9, wherein, said control-signals generator is provided by microcontroller.
13. control-signals generator according to claim 1, wherein, said output is provided for inputing to the control signal of the timing control circuit of said phase controlled light modulator circuit.
14. control-signals generator according to claim 1, wherein, said output is provided for inputing to the controlling and driving signal of the switch of said phase controlled light modulator circuit.
15. according to each described control-signals generator in the claim 1 to 14, wherein, the said conduction threshold on-Line Voltage half period about 50% to about 100% between.
16. according to each described control-signals generator in the claim 1 to 15, wherein, said conduction threshold is about 80% of a line voltage half cycle.
17. a method that is used for being created on the control signal that the phase controlled light modulator circuit uses, said method comprises:
Receive the input of expression user control signal;
Starting under at said user control signal and to generate the boost signal that is equal to or greater than said conduction threshold in the period less than the situation of conduction threshold; And
Generating the said boost signal of output under the said boost signal situation.
18. method according to claim 18 also comprises: the said input signal of output under the situation that does not generate boost signal.
19. the method that is used to generate control signal according to claim 17, wherein, the said startup period is between about 0.5 second to about 5 seconds.
20. the method that is used to generate control signal according to claim 17, wherein, the said startup period is about 2 seconds.
21. the method that is used to generate control signal according to claim 17, wherein, the said startup period is about 4 seconds.
22., wherein, before the said startup period, have and tilt to rise the period according to each described method that is used to generate control signal in the claim 17 to 20.
23., wherein, after the said startup period, have and tilt to descend the period according to each described method that is used to generate control signal in the claim 17 to 21.
24. a phase controlled light modulator circuit that is used for the power of control transmission to load comprises:
Input is used for controlling the reception user control signal from the user;
Control-signals generator; Be used under the situation of said user control signal, being provided as the control signal of said user control signal more than or equal to conduction threshold; Perhaps under the situation of said user control signal less than said conduction threshold, be provided as the control signal of boost signal, wherein said boost signal is more than or equal to said conduction threshold;
Timing control circuit is used for generating drive signal in response to said control signal; And
Switch is used to respond said drive signal with current switching to said load.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2010900685 | 2010-02-18 | ||
| AU2010900685A AU2010900685A0 (en) | 2010-02-18 | Control signal generator for a dimmer circuit | |
| PCT/AU2011/000177 WO2011100803A1 (en) | 2010-02-18 | 2011-02-18 | Control signal generator for a dimmer circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102783252A true CN102783252A (en) | 2012-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011800100644A Pending CN102783252A (en) | 2010-02-18 | 2011-02-18 | Control signal generator for a dimmer circuit |
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| Country | Link |
|---|---|
| KR (1) | KR20130018694A (en) |
| CN (1) | CN102783252A (en) |
| AU (1) | AU2011217744B2 (en) |
| NZ (1) | NZ601621A (en) |
| SG (1) | SG182843A1 (en) |
| WO (1) | WO2011100803A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111564979A (en) * | 2020-04-16 | 2020-08-21 | 厦门天力源光电科技有限公司 | Load starting method based on phase-cut electronic dimming/speed regulator |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR112014008524A2 (en) * | 2011-10-14 | 2017-04-18 | Koninklijke Philips Nv | method of determining the amount of light generation from a solid state lighting unit, and, solid state lighting unit configured to connect to a dimmer in a dimmer circuit |
| US10182481B2 (en) | 2016-04-26 | 2019-01-15 | RAB Lighting Inc. | Bi-level low voltage dimming controller for lighting drivers |
| EP3914048B1 (en) * | 2020-05-18 | 2023-12-20 | Smart Home SA | Digital dimmer and method for varying the luminous intensity of an electronic light source |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7420333B1 (en) * | 2004-01-29 | 2008-09-02 | Marvell International Ltd. | Mixed mode control for dimmable fluorescent lamp |
| US20090251059A1 (en) * | 2008-04-04 | 2009-10-08 | Lemnis Lighting Patent Holding B.V. | Dimmer triggering circuit, dimmer system and dimmable device |
| CN102246602A (en) * | 2008-12-10 | 2011-11-16 | Nxp股份有限公司 | A method of controlling a fluorescent lamp, a controller and a fluorescent lamp |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5629607A (en) * | 1984-08-15 | 1997-05-13 | Callahan; Michael | Initializing controlled transition light dimmers |
| US6114813A (en) * | 1996-02-13 | 2000-09-05 | Holmes Products Corp. | Light sensitive dimmer switch circuit |
| US6020689A (en) * | 1997-04-10 | 2000-02-01 | Philips Electronics North America Corporation | Anti-flicker scheme for a fluorescent lamp ballast driver |
| CN100546418C (en) * | 2004-05-19 | 2009-09-30 | 高肯集团有限公司 | Be used for the light adjusting circuit of LED lighting apparatus and the device that keeps the TRIAC conducting |
| IL163558A0 (en) * | 2004-08-16 | 2005-12-18 | Lightech Electronics Ind Ltd | Controllable power supply circuit for an illumination system and methods of operation thereof |
| US7902769B2 (en) * | 2006-01-20 | 2011-03-08 | Exclara, Inc. | Current regulator for modulating brightness levels of solid state lighting |
| US7570031B2 (en) * | 2006-03-17 | 2009-08-04 | Lutron Electronics Co., Inc. | Method and apparatus for preventing multiple attempted firings of a semiconductor switch in a load control device |
| JP4608470B2 (en) * | 2006-08-31 | 2011-01-12 | パナソニック電工株式会社 | Discharge lamp lighting device and lighting device |
| GB0800755D0 (en) * | 2008-01-16 | 2008-02-27 | Melexis Nv | Improvements in and relating to low power lighting |
-
2011
- 2011-02-18 KR KR1020127024380A patent/KR20130018694A/en not_active Application Discontinuation
- 2011-02-18 AU AU2011217744A patent/AU2011217744B2/en not_active Ceased
- 2011-02-18 SG SG2012057840A patent/SG182843A1/en unknown
- 2011-02-18 CN CN2011800100644A patent/CN102783252A/en active Pending
- 2011-02-18 NZ NZ601621A patent/NZ601621A/en not_active IP Right Cessation
- 2011-02-18 WO PCT/AU2011/000177 patent/WO2011100803A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7420333B1 (en) * | 2004-01-29 | 2008-09-02 | Marvell International Ltd. | Mixed mode control for dimmable fluorescent lamp |
| US20090251059A1 (en) * | 2008-04-04 | 2009-10-08 | Lemnis Lighting Patent Holding B.V. | Dimmer triggering circuit, dimmer system and dimmable device |
| CN102246602A (en) * | 2008-12-10 | 2011-11-16 | Nxp股份有限公司 | A method of controlling a fluorescent lamp, a controller and a fluorescent lamp |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111564979A (en) * | 2020-04-16 | 2020-08-21 | 厦门天力源光电科技有限公司 | Load starting method based on phase-cut electronic dimming/speed regulator |
Also Published As
| Publication number | Publication date |
|---|---|
| NZ601621A (en) | 2014-07-25 |
| WO2011100803A1 (en) | 2011-08-25 |
| AU2011217744B2 (en) | 2015-07-02 |
| KR20130018694A (en) | 2013-02-25 |
| AU2011217744A1 (en) | 2012-08-23 |
| SG182843A1 (en) | 2012-09-27 |
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