CN101227781A - System and method for current and/or temperature control of light fixture - Google Patents
System and method for current and/or temperature control of light fixture Download PDFInfo
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- CN101227781A CN101227781A CNA2007101455733A CN200710145573A CN101227781A CN 101227781 A CN101227781 A CN 101227781A CN A2007101455733 A CNA2007101455733 A CN A2007101455733A CN 200710145573 A CN200710145573 A CN 200710145573A CN 101227781 A CN101227781 A CN 101227781A
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Abstract
A system ( 100 ) for current and/or temperature control of light fixtures includes a sensor ( 110 ) structured to be in communication with a light fixture ( 150 ), sense a current flow or a temperature of the light fixture ( 150 ), and communicate an input signal relative to the current flow or the temperature; a variable switch ( 120 ) structured to be in communication with the light fixture ( 150 ) and regulate the current flow of the light fixture ( 150 ) in response to a control signal; and a controller ( 130 ) in communication with the sensor ( 110 ) and the variable switch ( 120 ) and structured to monitor the input signal communicated by the sensor ( 110 ), compare the input signal to a condition, and communicate the control signal to the variable switch ( 120 ) to control its operation. A method for current and/or temperature control of light fixtures includes providing the system ( 100 ), monitoring the current flow or the temperature of the light fixture ( 150 ); and regulating the current flow of the light fixture ( 150 ).
Description
The mutual reference of related application
The benefit of priority that title is 60/840,352 U.S. Provisional Patent Application case for " Wattage or Current Control CircuitIdea " and sequence number was filed an application on August 23rd, 2006 in request of the present invention.Described application case is incorporated herein by reference.
Technical field
The present invention relates to light fixture, and in particular to a kind of electric current and/or temperature controlled system and method that is used for light fixture.
Background technology
Since introducing in building or other environment as power supply electricity, promptly brought into use light fixture in fact.Modern light fixture comprises at least one light source (for example, bulb or lamp) and shell usually, and described shell supports and/or seals described light source and be connected to power supply (for example, by lamp socket and wiring).Described light fixture can be attached to the other parts of ceiling, wall or fabric structure and also can combine with other assembly.For example, being combined as of light fixture and fan anchor clamps (for example, ceiling fan) is common, provides the fan/light built-up jig with (for example).
Usually, has some limit (for example, because its construction or design) aspect the electric current that under normal, safety and/or other desired operating condition, can bear of light fixture and/or the temperature amount.For example, many Design of Luminaires become can bear safely usually electric current and the temperature that one or more 60 watt lamp that are connected to 120 volts of power supplys are produced during operation.The described safety operation limit (also being illustrated as rated value) usually with label on light fixture to inform the user.
Yet, usually may be because of neglecting one's supervisory duties, no matter do it on purpose (for example, being to obtain more light) still accidental its operation be installed can have caused that generation is higher than specified electric current and/or temperature (for example, 75 watt lamp are used for 60 watts rated value) in the light fixture.Have the condition that can cause unusual, dangerous or other non-expectation than the described operation of the light fixture that can handle the bigger light source of rated value, described condition can (for example) causes operational losses and to the remarkable damage of light fixture and surrounding environment because of overheated, cigarette and/or fire.
Therefore, the system and method that as seen needs a kind of electric current of controlling light fixture and/or temperature issuable operational losses and/or damage when avoiding in described light fixture, using the light source greater than rated value.Therefore, main purpose of the present invention promptly provides described light fixture.
Summary of the invention
According to exemplary embodiment as herein described, the invention provides a kind of electric current and/or temperature controlled system and method that is used for light fixture.Example system of the present invention can comprise: transducer, its through structure with is communicated with light fixture, the electric current of the described light fixture of sensing or temperature and transmission be about the input signal of described electric current and temperature; Variable power switch, its through structure to be communicated with and to adjust the electric current of described light fixture in response to control signal with described light fixture; And controller, its is communicated with described transducer and described variable power switch and through structure to monitor by the input signal of described transducer transmission, with described input signal and a condition compares and described control signal is sent to described variable power switch to control its operation.
Exemplary methods of the present invention can comprise electric current and/or the temperature controlled above-mentioned example system that is provided for light fixture; By the electric current or the temperature that send monitoring described light fixture of input signal from transducer to controller; And determine that in response to described controller described input signal satisfies described condition, is sent to the electric current that described variable power switch is adjusted described light fixture by described controller with described control signal.
Description of drawings
Fig. 1 is used for the electric current of light fixture and/or the calcspar of temperature controlled system.
Fig. 2 is the schematic diagram that is used for first example circuit of the electric current of light fixture and/or temperature controlled system shown in Fig. 1.
Fig. 3 is the schematic diagram that is used for second example circuit of the electric current of light fixture and/or temperature controlled system shown in Fig. 1.
Fig. 4 is the schematic diagram that is used for the 3rd example circuit of the electric current of light fixture and/or temperature controlled system shown in Fig. 1.
Fig. 5 is used for the electric current of light fixture and/or the flow chart of temperature controlled method.
Fig. 6 is the flow chart that is used for first submethod of the electric current of light fixture and/or temperature controlled method shown in Fig. 5.
Fig. 7 is the flow chart that is used for second submethod of the electric current of light fixture and/or temperature controlled method shown in Fig. 5.
Fig. 8 is the flow chart that is used for the 3rd submethod of the electric current of light fixture and/or temperature controlled method shown in Fig. 5.
Embodiment
Next with reference to graphic, Fig. 1 demonstration is used for the electric current of light fixture and/or the calcspar of temperature controlled system 100.System 100 can be communicated with lamp circuit 150 and/or be integrated in wherein.System 100 comprises transducer 110, it is configured (structure, design etc.) one or more features (condition with sensing (measurement, monitoring, detection etc.) lamp circuit 150 and/or light fixture (not illustrating) usually, parameter etc.) and will be sent to other device or element about the information of the feature (for example, value, frequency etc.) of institute's sensing.For example, transducer 110 can (for example pass one or more parts of lamp circuit 150 or the electric current around it through structure with sensing, and will be sent to another device or the element of system 100 electric current 155 that is illustrated), about the information (for example, value, amount etc.) of described electric current.As another example, transducer 110 can be through structure with one or more parts of sensing lamp circuit 150 and/or light fixture or the temperature around it (for example, and will be sent to another device or the element of system 100 near the temperature 165 that load 160, is illustrated), about the information of described temperature.Transducer 110 can be configured to the further feature of sensing lamp circuit 150 or light fixture and transmit its relevant information, and is apparent according to this general of disclosure of this paper.
As illustrating among Fig. 1, system 100 further comprises controller 130, and it is communicated with transducer 110 and variable power switch 120 usually.Usually, controller 130 is configured to monitor and/or control the operation of one or more assemblies that are communicated with controller 130 (for example, transducer 110 and variable power switch 120).For example, controller 130 can be monitored one or more inputs of receiving from transducer 110 signal of electric current, voltage etc. (for example, such as).As another example, the operation of variable power switch 120 is controlled in one or more outputs that controller 130 can be by being sent to variable power switch 120 signal of electric current, voltage etc. (for example, such as).Obviously, controller 130 can be configured to monitoring or control other assembly (device, system etc.), for example, and other assembly of lamp circuit 150.
The said elements of system 100 (also is, transducer 110, variable power switch 120 and controller 130) can make (form, manufacturing etc.) by one or more materials and/or assembly in numerous materials and/or the assembly by one or more methods in numerous methods or the process or process, according to the disclosure of this paper this will be apparent.For example, transducer 110, variable power switch 120 and/or controller 130 (for example can comprise one or more electric assemblies, conductor, resistor, capacitor, transformer etc.), electronic building brick (for example, transistor, semiconductor, integrated circuit, chip, circuit board etc.), computation module (for example, electronic installation, logic, FPGA (Field Programmable Gate Array), microprocessor, computation processor etc.) or the like.Below will discuss several examples of this kind assembly that can comprise transducer 110, variable power switch 120 and/or controller 130 at Fig. 2-4.In addition, below will be at some example of the operation of in Fig. 5-8 argumentation system 100 these elements or above element.The element (for example, transducer 110, variable power switch 120 and controller 130) that also it should be noted that system 100 can be independent assembly or is integrated into various combinations, and is apparent according to this general of disclosure of this paper.
As mentioned above, system 100 can be communicated with lamp circuit 150 and/or be integrated in wherein.As illustrating among Fig. 1, this lamp circuit 150 can comprise various assemblies, but comprises at least one load 160 usually and can further comprise adjuster 170.Load 160 comprises the light source such as lamp or bulb usually, and described light source can be used for providing light from the light fixture of installing.Adjuster 170 comprises inductor, capacitor and/or other this class component or its equivalent usually, and described assembly can provide being present in overanxious or other adjusting of various features in the lamp circuit 150 (for example, non-expectation).For example, adjuster 170 can overanxious or other adjusting by the interference that operation caused of one or more assemblies (for example, variable power switch 120) of load 160 or system 100 or the feature of other non-expectation.According to disclosure herein, in lamp circuit 150, comprise with working load 160, adjuster 170 and/or other assembly will be conspicuous, it also will be like this making the possible composition of this class component and method or process.
The schematic diagram that is used for first example circuit 200 of the electric current of light fixture and/or temperature controlled system 100 shown in Fig. 2 displayed map 1.Be similar to the system 100 of Fig. 1, example circuit 200 can be communicated with lamp circuit 250 and/or be integrated in wherein.Circuit 200 can comprise current sensor 212, and it is configured to the electric current 255 of sensing by lamp circuit 250.To understand as the disclosure according to this paper, current sensor 212 can comprise one or more elements in numerous elements (assembly, device etc.).For example, current sensor 212 can comprise current transformer, described current transformer is with lamp circuit 250 and also (for example be communicated with controller 230, be connected to its, with its near etc.) but so that current sensor 212 current sensors 255 and (for example with its feature, value, polarity etc.) be sent to controller 230 (for example, by signal) such as electric current, voltage etc.As another example, current sensor 212 can comprise transducer, and it is configured to current sensor 255 and its feature is sent to controller 230.
As mentioned above, circuit 200 also comprises controller 230, itself and current sensor 212 and/or temperature sensor 216 (as above discuss, this depends on the one, and the person still is that both are contained in the circuit 200) and be communicated with triac 222.In some embodiment, controller 230 also can be communicated with remote control 235, as discussed below.Controller 230 is above examples at the controller 130 that Fig. 1 discussed.Controller 230 is configured to from current sensor 212 and/or temperature sensor 216 received signals, and the character that depends on described input signal (for example, value, frequency, variation etc.), control the operation of triac 222 by the gate terminal that output signal is sent to triac 222.Therefore, can think that controller 230 depends on the input that receives from current sensor 212 and/or temperature sensor 216 and triggers triac 222 (known as institute the prior art).In some embodiment of the present invention, controller 230 also may command influences the further feature of lamp circuit 250, for example, and conducting or close from power supply (not illustrating) and give the feed of lamp circuit 250 or revise the brightness (for example, as dimmer control) of light source 260.Disclosure according to this paper will be apparent, controller 230 (being similar to controller 130) can comprise one or more assemblies in numerous assemblies that this type of configuration and function are provided, for example, (above some examples that has proposed described assembly at Fig. 1) such as one or more electric assemblies, electronic building brick, computation modules.About this respect, below will further discuss some example of the operation (function, processing etc.) of controller 230 at Fig. 5-8.Some instantiation of controller 230 assemblies can comprise 8 general purpose controllers of Samsung S3C9454 or OKIMSM64164C 4 8-digit microcontroller unit.Also will be apparent, one or more assemblies of controller 230 and the combination of triac 222 can form the system that is similar to dimmer control or dimmer switch.In addition, another is chosen as, and triac 222 can be the semiconductive switching device of another type, and it is also known in the prior art.
As discussed previously, also can there be the remote control 235 that is communicated with controller 230.Known as institute in the prior art, remote control 235 can allow the user that signal (is for example remotely transferred to controller 230, transmit with wireless mode by radiofrequency signal), described signal can influence the operation of controller 230 and therefore other assembly of circuit 200, for example, triac 222.About this respect, remote control 235 can (for example) operation by controller 230 be used to turn on and off light source 260 to revise the brightness (for example, as dimmer) of light source 260.Can use other operation of remote control 235 controls with apparent according to the disclosure of this paper.
Also as mentioned above, circuit 200 can be communicated with lamp circuit 250 and/or be integrated in wherein.This lamp circuit 250 can comprise light source 260, and it is as the example at the load 160 that Fig. 1 discussed.Known as institute in the prior art, light source 260 can be bulb, lamp or other element at the energy (for example, visible light) of electric current 255 by exporting certain form at that time.Lamp circuit 250 also can comprise inductor or RF coil 270, and it is as the example at the adjuster 170 that Fig. 1 discussed.Known as institute in the prior art, RF coil 270 can filter out the non-desired character of electric current 255, voltage (not illustrating) or other signal in the lamp circuit 250.Also as known, described non-desired character by one or more elements that is communicated with lamp circuit 250 (for example can comprise, triac 222) interference that causes (for example, radio, harmonic wave etc.), described interference can cause light source 260 operations (for example, flicker, unintentional deepening etc.) of non-expectation.
The schematic diagram that is used for second example circuit 300 of the electric current of light fixture and/or temperature controlled system 100 shown in Fig. 3 displayed map 1.Be similar to the system 100 of Fig. 1, example circuit 300 can be communicated with lamp circuit 350 and/or be integrated in wherein.Be similar to the circuit 200 of Fig. 2, circuit 300 can comprise current sensor 212 and or or comprise temperature sensor 216 in addition, both are all discussed at Fig. 2 hereinbefore for this.Circuit 300 also comprises triac 222, and it is also discussed at Fig. 2 hereinbefore.
Circuit 300 further comprises controller 330, and it is similar to above the controller of discussing at Fig. 2 230, but also comprises relay 332, its can with 300 one-tenth integral body of controller or released state (as illustrate).As illustrating among Fig. 3, controller 330 can be communicated with current sensor 212 and/or temperature sensor 216, and also with triac 222, relay 332 and in certain embodiments, remote control 235 is communicated with, this is also discussed at Fig. 2 hereinbefore.Also illustrate as institute, relay 332 can comprise switch (contact, terminal etc.), and it can guide current 355 pass one at least two paths 1,2 when described relay operation.Relay is known in the prior art, wherein comprises how to make and to use relay at embodiments of the invention.
Adding relay 332 for controller 330 allows to walk around triac 222 by the additional circuitry 380 that can be contained in the lamp circuit 350.This additional circuitry 380 can comprise pass to light source 260 directapath (for example, short circuit) or another can influence the circuit (device, system etc.) of light source operation, for example, dimmer circuit (not illustrating) is by providing the bypass of triac 222, and relay allows to use this additional circuitry 380 to avoid simultaneously being connected with additional circuitry 380 or the feature of other issuable interference or other non-expectation when operating together at triac 222.For example, if additional circuitry 380 is for also comprising the dimmer of triac and RF coil, then the operation of the known additional circuitry 380 that this is connected with triac 222 and RF coil 270 can cause the non-desired operation of other assembly of light source 260 and/or circuit 300 or lamp circuit 350 in the prior art.Below will further discuss some example of the operation of controller 330 and relay 332 at Fig. 5-8.
Be similar to the lamp circuit 250 of Fig. 2, lamp circuit 350 (circuit 300 can be communicated with it and/or be whole in wherein) can comprise light source 260 and RF coil 270.Above discussed the details of light source 260 and RF coil 270 at Fig. 2.Discuss as mentioned, in some embodiment of the present invention, as illustrating among Fig. 3, RF coil 270 (for example, and triac 222) can switch by relay 332 and lamp circuit 350 (for example, walking around).
The schematic diagram that is used for the 3rd example circuit 400 of the electric current of light fixture and/or temperature controlled system 100 shown in Fig. 4 displayed map 1.Be similar to the system 100 of Fig. 1, example circuit 400 can be communicated with lamp circuit 450 and/or be integrated in wherein.Circuit 400 is similar to the circuit 300 of Fig. 3 and comprises current sensor 212 and/or temperature sensor 216 and relay 332, and this is set forth at Fig. 3 hereinbefore.Circuit 400 also comprises controller 430, and described controller is except that with triac is communicated with not being similar to above-mentioned controller 330.Hereinafter will further discuss some example of the operation of controller 430 and relay 332 at Fig. 5-8.
Substitute triac, circuit 400 comprises diode 422, and it is another example of the variable power switch 120 of Fig. 1.Diode is known in the prior art, wherein comprises how to make and to use diode at embodiments of the invention.Therefore, disclosure according to this paper will be apparent, when diode 422 being switched to mode of operation by relay 332, described diode (for example can change electric current 455, between full flow and no flow), thus the electric current 455 (for example) that causes passing light source 260 is about initial currents 455 in the lamp circuit 450 half.
Be similar to the lamp circuit 350 of Fig. 3, lamp circuit 450 can comprise light source 260 and RF coil 270.In addition, as illustrate, a path 1 of relay 332 can be communicated with additional circuitry 380 (its be contained in lamp circuit 450 in).For example, above light source 260, RF coil 270 and additional circuitry 380 have been set forth at Fig. 3.
It should be noted that at the previous argumentation of Fig. 1-4 and set forth various systems and/or circuit, wherein comprise element all places respect to one another.Yet, should be appreciated that and apparent this class component of being set forth (and other element) or can be positioned to numerous versions within the scope of the present invention according to the disclosure of this paper.Should be appreciated that also as used herein, the term light fixture can refer to system's (structure, device etc.) of comprising lamp circuit or described two terms and be used interchangeably and refer to whole system or its part, for example, circuit part.
Can comprise above exemplary reference at the following explanation of Fig. 5-8 pair exemplary embodiment of the present invention, so that explanation at Fig. 1-5 element of discussing.Yet, should be appreciated that, describedly be referenced as exemplary and the scope of unrestricted exemplary embodiment of the present invention.In addition, should be appreciated that, under the prerequisite of exemplary embodiment scope of the present invention, some step of following exemplary methods (submethod, process etc.) can be before or after other step of described method (respectively) implement, or parallel with other step or combine enforcement with it.
Fig. 5 demonstration is used for the electric current of light fixture and/or the flow chart of temperature controlled method 500.The method can be implemented by other element of (for example) controller 130 and/or system 100, and this is discussed at Fig. 1 hereinbefore.Method 500 is with step 502 beginning, and its middle controller 130 is by importing one or more features of monitoring lamp circuit 150 and/or light fixture from one or more of transducer 110.Described method proceeds to step 504, and its middle controller 130 determines whether one or more features of institute's monitoring feature satisfy corresponding condition.For example, controller 130 input that can be configured to autobiography sensor 110 in the future and one or more predetermined values compare with determine described input whether satisfy be scheduled to comparison condition (for example, less than, equal, greater than etc.).
If in step 504, do not satisfy corresponding condition, then described method proceeds to step 506, its middle controller 130 by one or more outputs are sent to variable power switch 120 so that it permits normal and/or existing electric current 155 arrives loads 160 and responded.Described method proceeds to step 502 backward from step 506.Yet, can corresponding condition if in step 504, satisfy, then described method proceeds to step 508, its middle controller 130 by one or more outputs are sent to variable power switch 120 so that its modification (for example, minimizing, increase etc.) arrives the electric current 155 of load 160.As discussed below, the modification of electric current 155 can be implemented according to desired program.Then, described method proceeds to step 502 backward from step 508.
The flow chart that is used for first submethod 600 of the electric current of light fixture and/or temperature controlled method 500 shown in Fig. 6 displayed map 5.This submethod 600 can (for example) be implemented by other element of controller 230 and/or circuit 200, and this is discussed at Fig. 2 hereinbefore.Submethod 600 begins with step 602, its middle controller 230 is by importing monitoring current 255 from one or more of current sensor 212, and/or by importing monitor temperature (for example from one or more of temperature sensor 216, temperature around one or more parts of lamp circuit 250 or light fixture or its), this depends on and comprises one in the described transducer or both in the circuit 200.
Submethod 600 proceeds to step 604, its middle controller 230 determine the electric currents of being monitored whether greater than the level of desired (for example, predetermined, preset etc.) or the temperature determining to be monitored whether greater than desired level.If the electric current of being monitored in step 604 is not more than desired level or the temperature of being monitored is not more than desired level, then submethod 600 proceeds to step 606, and one or more outputs are sent to triac 222 to its middle controller 230 so that the electric current 255 that triac 222 keeps " conducting " and permits normal (existing, expectation etc.) arrives light sources 260.For example, in case known in this technology abundance (for example, bias voltage) voltage is applied to its gate terminal, triac is reduced to conduction current below the threshold value until described electric current.Therefore, in step 606, the gate terminal that controller 230 is applied to described bias voltage triac 222 as far as possible continually in a looping fashion (for example, with or approximately with the frequency of 60 circulations of per second of typical AC power) so that triac 222 conduction currents 255, walk back and forth Buddhist its just as closed in fact switch or short circuit (for example, reduce to threshold value when described electric current and change polarity chron when as follows, may there be certain interruption in described stream).Then, submethod 600 proceeds to step 602 backward from step 606.
Yet, if the electric current of in step 604, being monitored greater than desired level or the temperature of being monitored greater than desired level, then submethod 600 proceeds to step 608, one or more outputs are sent to triac 222 to its middle controller 230 so that conducting and close triac 222 and reduce the electric current 255 that (reduce, minimizing etc.) arrives light source 260 according to desired program in a looping fashion, and the example will be discussed hereinafter.For example, some operating principle according to aforesaid triac 222, controller 230 can be applied to bias voltage the gate terminal of triac 222 in a looping fashion under slow frequency, so that triac 222 circulates, reduce to be delivered to the electric current 255 of light source 260 thus effectively between conduction current and non-conducting electric current.Then, submethod 600 proceeds to step 602 backward from step 608.
As mentioned above, controller 230 can make triac 222 operations to reduce electric current 255 according to desired program (routine, agreement etc.).An example of the program of described expectation is that controller 230 makes triac 222 electric current 255 be reduced to be scheduled to the amount (for example, such as 25%, 50%, 75% etc. percentage) of (preset, precomputation, fixing etc.).Another example of the program of described expectation is that controller 230 makes triac 222 that electric current 255 is decreased to scheduled volume (for example, 1amp, 2amps etc.).An example again of the program of described expectation is that controller 230 makes triac 222 reduce electric current 255 with temperature (for example, one or more parts of lamp circuit 250 or light fixture or the temperature around it) maintain below a certain maximum (for example, less than 90 degrees centigrade).Said procedure can comprise controller and depend on by the resulting electric current 255 of current sensor 212 sensings and/or depend on the operation of keeping and/or revise triac 222 by the resulting temperature of temperature sensor 216 sensings.In addition, other this type of desired program that is used for reducing electric current 255 can be implemented by controller, according to the disclosure of this paper this will be apparent.
The flow chart that is used for second submethod 700 of the electric current of light fixture and/or temperature controlled method 500 shown in Fig. 7 displayed map 5.This submethod 700 can (for example) be implemented by other element of controller 330 and/or circuit 300, and this is discussed at Fig. 3 hereinbefore.The step 702 of submethod 700,704 in fact with the step 602 of above-mentioned submethod 600,604 identical.In the step 706 of submethod 700 (if the electric current of being monitored in step 704 is not more than desired level or the temperature of being monitored is not more than desired level, then can arrive this step) in, one or more outputs are sent to relay 332 with controller 330 so that it switches the electric current 355 that arrives light source 260 via path 1 by additional circuitry 380.During this step 706, controller 330 can or can not be sent to triac 222 with one or more outputs yet, because it is walked around from lamp circuit 350 by relay 332 and additional circuitry 380.Then, submethod 700 proceeds to step 702 backward from step 706.
In the step 708 of submethod 700 (if the electric current of in step 704, being monitored greater than desired level or the temperature of being monitored greater than desired level, then can arrive this step) in, one or more outputs are sent to relay 332 with controller 330 so that it switches the electric current 355 that arrives light source 260 via path 2 by triac 222.
Also during this step 706, one or more outputs are sent to triac 222 with controller 330 so that conducting and close triac 222 and reduce the electric current 355 that arrives light source 260 according to being similar to the above desired program of setting forth at step 608 in a looping fashion.Then, submethod 700 proceeds to step 702 backward from step 708.
The flow chart that is used for the 3rd submethod 800 of the electric current of light fixture and/or temperature controlled method 500 shown in Fig. 8 displayed map 5.This submethod 800 can (for example) be implemented by other element of controller 430 and/or circuit 400, and this is discussed at Fig. 4 hereinbefore.The step 802 of submethod 800,804,806 in fact with the step 702,704 of above-mentioned submethod 700,706 identical.In the step 808 of submethod 800 (if the electric current of in step 804, being monitored greater than desired level or the temperature of being monitored greater than desired level, then can arrive this step) in, one or more outputs are sent to relay 332 with controller 330 so that it switches the electric current 455 that arrives light source 260 via path 2 by diode 422.As mentioned above, diode 422 electric current 455 can be decreased to previous electric currents 455 in (for example) lamp circuit 450 pact half.Then, submethod 800 proceeds to step 802 backward from step 808.
Therefore can see, a kind of electric current of light fixture and/or system and method for temperature controlled is provided now, to avoid issuable operational losses and/or damage when the light source that uses with light fixture greater than rated value.Should be appreciated that above-mentioned explanation only relates to exemplary of the present invention, illustrative embodiment.In addition, the various elements of described exemplary embodiment may be known in the prior art or the person of ordinary skill in the field recognize according to the disclosure of this paper.Therefore, also should be appreciated that, can do various modifications, and described modification belongs in the present invention's spirit of illustrating in the following claim and category exemplary embodiment as herein described.
Claims (14)
1. an electric current and/or temperature controlled system that is used for light fixture, it comprises:
Transducer, to be communicated with light fixture, the electric current of the described light fixture of sensing or temperature and transmission are about the input signal of described electric current or temperature through structure for it;
Variable power switch, its through structure to be communicated with and to adjust the electric current of described light fixture in response to control signal with described light fixture; And
Controller, the described input signal that it is communicated with described transducer and described variable power switch and is transmitted by described transducer with monitoring through structure is with described input signal and a condition compares and described control signal is sent to described variable power switch to control its operation.
2. the system as claimed in claim 1, wherein said transducer comprises at least one in current transformer, thermistor or the converter.
3. the system as claimed in claim 1, wherein said condition is one in scheduled current parameter or the predetermined temperature parameter.
4. the system as claimed in claim 1, wherein said variable power switch comprises at least one in triac, diode or the semiconductive switching device.
5. the system as claimed in claim 1, at least a portion of wherein said variable power switch and described controller comprises dimmer circuit.
6. the system as claimed in claim 1, wherein said controller comprises at least one in conductor, resistor, capacitor, transformer, transistor, semiconductor, integrated circuit, chip, circuit board, electronic logic, FPGA (Field Programmable Gate Array), microprocessor or the computation processor.
7. the system as claimed in claim 1, wherein said controller further through structure to be communicated with remote control and to operate by described remote control at least in part.
8. the system as claimed in claim 1, wherein said controller further through structure with is communicated with described light fixture and between at least two paths the electric current in the described lamp circuit of switching, one of them path is communicated with described variable power switch.
9. the system as claimed in claim 1, it further comprises relay, described relay be communicated with described controller and through structure to be communicated with described light fixture and between at least two paths, to switch electric current in the described lamp circuit in response to the signal that sends from described controller, one in the wherein said path is communicated with described variable power switch.
10. an electric current and/or temperature controlled method that is used for light fixture, it comprises:
Transducer is provided, and to be communicated with light fixture, the electric current of the described light fixture of sensing or temperature also transmit about the electric current of described sensing or the input signal of temperature described transducer through structure;
Variable power switch is provided, described variable power switch through structure to be communicated with and to adjust the electric current of described light fixture in response to control signal with described light fixture;
Controller is provided, the described input signal that described controller is communicated with described transducer and described variable power switch and is transmitted by described transducer with monitoring through structure is with described input signal and a condition compares and described control signal is sent to described variable power switch to control its operation;
By described input signal is sent to electric current or the temperature that described controller is monitored described light fixture from described transducer; And
Determine that in response to described controller described input signal satisfies described condition, is sent to the electric current that described variable power switch is adjusted described light fixture by described controller with described control signal.
11. method as claimed in claim 10 is wherein adjusted described electric current and is comprised in response to described controller and determine that described input signal satisfies the conditioned disjunction equal or to exceed the scheduled current parameter and equals or exceed the electric current that one in the condition of predetermined temperature parameter adjusted described light fixture.
12. method as claimed in claim 10 is wherein adjusted described electric current and is comprised by described controller described control signal is sent to the electric current that described light fixture was kept or reduced to described variable power switch.
13. method as claimed in claim 10 is wherein adjusted described electric current and comprised according to preset program and reduce described electric current, described preset program comprises described electric current is reduced scheduled volume or described electric current is decreased to one in the scheduled volume.
14. method as claimed in claim 10 is wherein adjusted described electric current and is comprised described control signal is sent to the dimmer circuit that at least a portion by described variable power switch and described controller constitutes.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US84035206P | 2006-08-28 | 2006-08-28 | |
| US60/840,352 | 2006-08-28 | ||
| US11/712,856 | 2007-03-01 |
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| CN101227781A true CN101227781A (en) | 2008-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2007101455733A Pending CN101227781A (en) | 2006-08-28 | 2007-08-28 | System and method for current and/or temperature control of light fixture |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1180987A (en) * | 1996-05-10 | 1998-05-06 | 通用电气公司 | Lamp power supply circuit with feedback circuit for dynamically adjusting lamp current |
| US5909090A (en) * | 1997-04-03 | 1999-06-01 | Mitsubishi Denki Kabushiki Kaisha | Light-emission controlling apparatus |
| US6819060B2 (en) * | 2002-11-26 | 2004-11-16 | Honeywell International Inc. | Power line monitor and interrupt arrangement for averting premature lamp mortality in low voltage conditions |
-
2007
- 2007-08-28 CN CNA2007101455733A patent/CN101227781A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1180987A (en) * | 1996-05-10 | 1998-05-06 | 通用电气公司 | Lamp power supply circuit with feedback circuit for dynamically adjusting lamp current |
| US5909090A (en) * | 1997-04-03 | 1999-06-01 | Mitsubishi Denki Kabushiki Kaisha | Light-emission controlling apparatus |
| US6819060B2 (en) * | 2002-11-26 | 2004-11-16 | Honeywell International Inc. | Power line monitor and interrupt arrangement for averting premature lamp mortality in low voltage conditions |
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