CN1161126A - System for operating a lamp - Google Patents
System for operating a lamp Download PDFInfo
- Publication number
- CN1161126A CN1161126A CN96190892A CN96190892A CN1161126A CN 1161126 A CN1161126 A CN 1161126A CN 96190892 A CN96190892 A CN 96190892A CN 96190892 A CN96190892 A CN 96190892A CN 1161126 A CN1161126 A CN 1161126A
- Authority
- CN
- China
- Prior art keywords
- disturbance
- control cycle
- half period
- lamp
- control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 abstract description 4
- 238000004891 communication Methods 0.000 abstract description 2
- 230000002457 bidirectional effect Effects 0.000 description 10
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000012856 packing Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 101100339482 Colletotrichum orbiculare (strain 104-T / ATCC 96160 / CBS 514.97 / LARS 414 / MAFF 240422) HOG1 gene Proteins 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- 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
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/36—Controlling
-
- 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
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/36—Controlling
- H05B41/38—Controlling the intensity of light
- H05B41/39—Controlling the intensity of light continuously
- H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
- H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
-
- 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
- H05B47/175—Controlling the light source by remote control
- H05B47/185—Controlling the light source by remote control via power line carrier transmission
Landscapes
- Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
A communication method particularly suited for lighting control employs encoding of perturbations in a voltage signal having a fundamental period with a nominal waveform. A control period includes a pre-selected number of fundamental periods of the voltage signal. Different control commands are indicated by imposing a selected perturbation, such as a phase cut, on the nominal waveform with a respective occurrence signature within the control period. The control commands are decoded from the voltage signal by detecting the occurrence signature of the perturbations within each control period. Decoding is accomplished by differentiating the nominal waveform to detect encoded perturbations. The technique is particularly suited for two-wire dimming applications for gas discharge lamps, in which the voltage signal carrying the encoded commands is the sinusoidal mains voltage powering the ballast, since the encoded perturbations may be small enough so that lamp flicker is avoided even with encoded signals on the line voltage.
Description
The present invention relates to a kind of system that is used to make lamp work, it comprises:
Two input terminals that link to each other with the sinusoidal power voltage source;
With the code device that described input terminal links to each other, be used for the part of the sinusoidal power voltage half period of disturbance (perturbe) predetermined quantity, the common control cycle that forms of the sinusoidal power voltage half period of described predetermined quantity;
Ballast circuit, it comprises:
The ballast input terminal that is connected with described code device is used for receiving by the sinusoidal power voltage of disturbance at the lamp duration of work;
Be used for producing the device I of lamp current from the sinusoidal power voltage of disturbance;
I links to each other and is used for controlling according to control signal the device II of the operating characteristic of lamp with device;
Produce the decoding device of control signal according to the shape of control cycle.
The invention still further relates to the code device and the ballast circuit that are used for this system.
U.S. Pat 5068576 has disclosed this system.In this known system, code device blocks or reduces the amplitude of whole half period fully, thereby the pulse that has pulse-losing or voltage obviously to reduce in the rectification DC of the rectifier that comprises in the ballast circuit output.In the ballast of the disclosure, controlled lamp operating characteristic is light output.The consecutive lost time period between pulses is represented the light modulation instruction.For example, the time between pulse-losing " n " can be represented 70% dim level (dimlevel), and the time between pulse-losing " m " is represented 90% dim level.Pulse-losing means the interruption of supply voltage and the lamp that controlled by ballast is glimmered.In the known stepping dimming ballast, this flicker is so not boring, because from a lighting level, for example 90% switches to next stage as 75% o'clock, and the user wishes that the light output of lamp has obvious and unexpected change., wish that the continuous light tuning effect is a light should smoothly adjust with very little increment the time, the user does not just wish not block whole pulses (with the flicker that produces) from main power source.
The purpose of this invention is to provide a kind of system that is used to make lamp work, it is at code device and overcome between the ballast circuit of above-mentioned shortcoming and have improved contact.
Therefore, the system according to being used to make lamp work described in the present invention such as the introductory song section is characterized in that, the disturbance that applies by code device only change sinusoidal power voltage each by the sinusoidal power voltage amplitude of a part in the disturbance half period.
By this way, the coding disturbance on the line voltage in the coding techniques of the present invention can be selected very for a short time, even have code signal in supply voltage, also can avoid the flicker of lamp.
Find,, be chosen in by the half period of disturbance that part of between half period of 10% and 50%, be preferably between 10% and 25% according to the structure of ballast circuit.
Disturbance preferably also is a kind of phase truncation (phase cut).
Phase truncation may be selected to be and is lower than 45 °, preferably about 30 °.In such a way, the coding disturbance on the line voltage in the coding techniques of the present invention can be very low, thereby avoid the flicker of lamp effectively.
Use constant phase to block and do disturbance, can implement the Code And Decode circuit relatively simply.
Decoding device preferably includes the device that the sinusoidal power voltage of disturbance is carried out differential.Decode by waveform is carried out differential, thereby can make the little disturbance minimum that makes in the power supply voltage signal of disturbance.
The preferred embodiment that is used for making the system of lamp work of the present invention, be used to control the device of lamp operating characteristic when decoding device detects first kind of shape of control cycle, can increase a scheduled volume by characteristic parameter to described lamp, and when decoding device detects second kind of shape of control cycle, the operating characteristic parameter of lamp is reduced a scheduled volume.
The device that is used to control the lamp operating characteristic for example can be the light modulating device of control light output.When only being hopeful in lamp operating characteristic parameter, to occur changing, just can introduce disturbance on the on-Line Voltage.Its advantage is that lamp does not apply disturbance, thereby avoided the flicker of lamp fully when keeping constant work on supply voltage.This point is highly significant, because when being used for the general lighting purpose, make lamp keep the time length of identical lighting level to be far longer than the actual extremely short time range that will change lighting level.This is opposite with electronic light modulator with bidirectional triode thyristor (triac), when their middle lighting level, apply phase truncation to each cycle of total voltage continuously.
What two of supply voltages were continuous is constituted described control cycle by the half period of disturbance and several non-disturbance half periods therebetween, and signal then can be depending on the duration of control cycle.On the other hand, described control cycle can comprise the sinusoidal power voltage half period of fixed qty.Under the latter event, signal can depend on the amount of disturbance in the control cycle.In this case, the Code And Decode device can have better simply structure.In addition, control cycle can be expressed as binary numeral, and interior each non-disturbance half period of control cycle is corresponding to " 0 " (zero), and each disturbance half period is corresponding to " 1 " (one).Can be contained in many instructions in the control cycle in this way.Certainly, the possibility of an equivalence is that control cycle is expressed as binary digit, and interior each non-disturbance half period of control cycle is corresponding to " 1 " (one), and each disturbance half period is corresponding to " 0 " (zero).
By the detailed description and claims of reference accompanying drawing, will understand these and other purposes, features and advantages of the present invention.
In the accompanying drawing:
Fig. 1 is that of the present invention to be used to make the part of the system of lamp work be the block diagram of ballast circuit embodiment;
Fig. 2 illustrates and is used for decoding device embodiment illustrated in fig. 1;
Fig. 3 illustrates the embodiment of the code device of the ballast circuit that is applicable to the system that is used for making lamp work of the present invention shown in Figure 1;
Fig. 4 illustrate among the embodiment of the system that makes lamp work shown in Fig. 1,2 and 3 signal shape and
Fig. 5 illustrates the flow chart that control is shown in the code device work of Fig. 3.
Fluorescent-lamp ballast circuit shown in Figure 1 comprises EMI and the bidirectional triode thyristor damping filter " A " that is connected with full-bridge type input rectifier " B ", and they are the rectification on its output and the output voltage of filtering to sinusoidal AC power supplies voltage transformation jointly.Preprocessor (pre-conditioner) circuit " C " comprises and is used to improve effective power factor and increasing and the control circuit that is connected across direct current (DC) voltage between pair of DC main line RL1 and the RL2 from rectifier circuit B.Ballast circuit comprises DC-AC interchanger or inverter " E " and is used for the controller " G " of control inverter.Inverter E is a semibridge system structure, and it provides the lamp current of high frequency to the lamp La that is connected with phase inverter E under half-bridge controller or drive circuit G control.Among the embodiment shown in Figure 1, constitute the device I that produces lamp current by filter " A ", rectifier " B ", preprocessor circuit " C " and phase inverter " E ".Controller G is formed for the device II according to the operating characteristic (lamp output) of control signal control lamp.
Dimming interface circuit " I " be connected on the output of rectifier circuit " B " and ballast circuit between the control input at controller G place, with the light modulation of control to lamp.Dimming interface circuit provides dimmer voltage signal (control signal) to controller G, and constitutes the code translator that produces signal according to the shape of control cycle.
No. the 08/414859th, U.S. Patent application is described in detail the work of all parts of the ballast circuit except that code translator shown in Figure 1, and this paper just no longer repeats.
In the code device and the code communication between the code translator of the embodiment of the system that makes lamp work shown in Fig. 1,2 and 3, constituted control cycle by the present invention through the power cycle or the primitive period of selected quantity.The signature of the previously selected generation disturbance in control cycle is characterized by a control command so that for example go to change the operating characteristic of lamp, as light levels." the generation signature " of disturbance can just be expressed as the number of times that disturbance produces in the control cycle in the control cycle.Producing signature also can be the location graphic of disturbance in the control cycle.For example, can encode to disturbance according to the binary number in the control cycle.
In the preferred embodiment of light modulation, the first fixing disturbance numerical table shows the instruction that brightness is increased predetermined increment, and the second different disturbance numerical table shows the instruction that lamp brightness is reduced predetermined increment.The 3rd numerical table that blocks in the control cycle shows the constant instruction of maintenance lamp level.Nothing in each control cycle (0) is blocked the instruction that preferably expression keeps constant luminance.Its advantage is when not wishing to change, just will not distort and introduce in the power circuit waveform.In addition, owing to do not introduce distortion, THD, power factor or element stress just there is not ill-effect.Disturbance is the phase truncation in the nominal waveform of primitive period, because the conducting of control bidirectional triode thyristor can easily realize such disturbance.
Fig. 4 (a)～4 (c) expression has shown the enforcement of this special light modulation from the waveform of three power circuits of the wall controller (wallcotroller) that constitutes code device.The control cycle of selecting is three (3) individual complete power cycles at code device or wall controller, is six (6) individual half wave cycles through the interface circuit in ballast after the rectification.Fig. 4 (d) is the waveform of dimming interface for receiving terminal, and it is the differential of Fig. 4 (c) power supply wave shape, if do not require the change luminous intensity, power supply wave shape is not made amendment shown in Fig. 4 (a).Do not increase extra distortion in this case on the line.At this moment, because supply voltage is smooth sinusoidal signal, the waveform on the differential receiver does not have pulse.In per three line periods, there is phase truncation in the waveform of a positive side to represent to reduce the control signal (Fig. 4 (b)) of light, produces a pulse on this receiver waveform after being received device decoding (differential).There are two to block the control signal that expression increases brightness in the control cycle (Fig. 4 (c)), make the receiver waveform in per three power cycles, two pulses be arranged, shown in Fig. 4 (d).
In the ballast, if receiver does not detect pulse in the rectifier power source waveform, brightness will remain unchanged.If detect in per three power cycles (six half wave cycles after the rectification) and produce a pulse or two pulses, brightness just changes a rank, promptly changes the increment of preliminary election by respective direction.
Experiment showed, if the step progression between the minimum and the highest lighting level is enough big, that is the each increment that changes of lamp is very little, then can simulate continuous light tuning.In the following examples, selecting number of steps is 100.If produce increase continuously or reduce control signal with wall controller, then need change intensity of light in about 5 seconds from minimum level to maximum level.
The major function of the code device of wall controller or the light regulating technology that is used to encode is to produce the control figure shown in Fig. 4 (a)～4 (c).Circuit diagram with the suitable transmitter of wall controller form is shown among Fig. 3.
Two input W1 and W3 are connected the white line (neutral line) and the black line (live wire) of power line respectively.Output W2 is connected with the red output line of the charged AC signal of giving ballast that is loaded with coding.Bidirectional triode thyristor WU1 is connected between terminal W1 and the W3.Each end of the elementary winding WP1 of step-down transformer WT1 links to each other with the respective end of terminal W1 and W3 respectively.The two ends of secondary winding WS1 link to each other with respective nodes W4, the W5 of the full bridge rectifier that is made of diode WD1～WD4 respectively.The negative electrode of diode WD1 and WD2 is connected in node W4, and the anode of diode WD3 and WD4 is connected in node W5.The anode of the negative electrode of diode WD3 and diode WD1 is connected in node W6, and the anode of the negative electrode of diode WD4 and diode WD2 is connected in node W7.
Control the triggering of bidirectional triode thyristor W11 with 8 8-digit microcontroller IC1 of dress oscillator in having.Suitable controller as IC1 is Motorola MC 68HC05K1.Microcontroller IC1 has two port A, B.The A port has eight terminals, B port that two terminals are arranged.Four push-button switch WS1～WS4 are arranged, control following function: open and close, light increase, light weakens.Microcontroller IC1 reads the state of these switches with its A port terminal PA4～PA7.
The node W7 of rectifier links to each other with the power vd D terminal of IC1 by the line WRL2 that comprises 5V Voltagre regulator WU2.Electrolytic condenser WC1 is connected between the line WRL3 and WRL2 of input (A) side of pressurizer WU2, to filter the DC pulsation from rectifier.Capacitor WC2 is connected between the identical line of the outlet side (B) of pressurizer W2, with filtering noise.Between online WRL3 of Zener diode WD5 cross-over connection and the WRL5, its negative electrode links to each other with the WRL5 line.Terminal RST (resetting) and IRQ (interrupt requests) also with pressurizer WU2+5V output links to each other.Ceramic resonator XT is connected across between oscillator terminal OSC1 and the OSC2, and it has element WC3, WC4 and WR2 by the appointment of resonator manufacturer, to guarantee the suitable work of resonator XT.
Microcontroller IC needs the zero cross signal of line voltage as the benchmark to triggering bidirectional triode thyristor WU1.Provide this signal with resistor WR1 and Zener diode WD5, and in terminals P B0 and PB1 input.Because the voltage of diode WD5 negative electrode only is 4.7V, this power of voltage ratio line crest voltage is much lower, therefore when line voltage zero-cross, provides logical signal " 1 " and " 0 " on terminals P B0 and PB1.Controller IC 1 is issued to the bidirectional triode thyristor triggering signal of bidirectional triode thyristor WU1 through line WRL4 by its terminals P A0～PA3.Resistor WR3 restriction is flowed to the electric current of bidirectional triode thyristor WU1 by the bidirectional triode thyristor triggering signal.These terminals are driven reliability by parallel connection to increase.If microcontroller IC1 sends triggering signal immediately according to the line voltage zero-cross point that detects, just can not change to power supply wave shape.This provides the figure as Fig. 4 (a) that makes lighting level constant.For providing phase truncation to produce the signal (shown in Fig. 4 (b) and 4 (c)) that increases or reduce lighting level in one or two half period, triggering signal postpones about 1.39ms after being used for the zero passage of corresponding half period.This just provides the little phase truncation of about 30 degree.
Fig. 5 is the program flow diagram of wall controller.Through the initialization port flow to after, program enters the circulation of the state of reading four switch WS1～WS4.If the switch motion program will be carried out function corresponding.For example, when pressing switch WS4 (reducing key), the waveform that wall controller will produce Fig. 4 (b) comes light modulation, and when pressing switch WS3 (increase key), the waveform that will produce Fig. 4 (c) increases lighting level.When pressing switch WS1 (start button), will offer power supply the lamp controller of connection and on the AC power supplies signal, not apply any disturbance.When pressing switch WS2, the AC power supplies signal is interrupted fully, and power supply does not just offer the ballast that is connected.
Fig. 2 is the schematic diagram of decoding device or receiver or interface circuit in the ballast circuit.The heart of interface circuit is the microcontroller IC2 (for example, the Z 86C04 of Zilog Inc.) that dimming control signal is transformed to corresponding PWM (pulse width modulation) output.Microcontroller IC2 has the input P31 of the dim signal of received code.PWM output (light modulation) signal is formed on the terminals P 27 and is converted into the DC signal that appears on the terminal Z7, so that input to the half-bridge driver in " light modulation " input of controller " G ".The node A of rectifier circuit B (reference point Z8 just) is connected with ground (benchmark Z9) by the divider network of being made up of resistor GR1, GR2 and GR3.Input P31 links to each other with Node B through the differential circuit that is made of GC2 and GR5.Zener diode GD6 and GR5 are connected in parallel, with the input of protection microcontroller IC2.On terminal VCC to the voltage fed of microcontroller, in this case from the voltage of pressurizer U3 with 5V.External ceramic resonator XL1 (2MHZ) is connected between clock terminal X1, the X2.Clock terminal links to each other with ground with GC4 by the capacitor GC3 that guarantees the appropriate work of resonator respectively.Capacitor GC5 be connected on and voltage source between, to suppress noise.Resistor GR6, GR7 and capacitor GC6 and GC7 make the PWM output signal from terminal 27 be smoothed to average DC signal to input to the light modulation input of controller G.
During power connection, promptly from the supply voltage of wall controller put on ballast input 1 ', 2 ' time, microcontroller IC2 is initialised, output P27 places the PWM value of the setting of the lighting level that is equivalent to set, for example 85% light is exported.Microcontroller input threshold voltage is about 2.5V.This means if input is higher than 2.5V then to be logical one, then be logical zero if input is lower than 2.5V.When only the voltage on P31 is higher than 2.5V, on terminals P 31, just receive logical one.When the sinusoidal half period is contained the phase truncation of conduct coding light modulation (Fig. 4 (d)), differential circuit just offers 31 1 pulses greater than 2.5V of terminals P (logical one).DC after the rectification of supply interface circuit is output as the DC of the tape pulse of 120HZ.The installation code ON/OFF wall-board switch if replace light adjusting and controlling device, because power supply does not change, microcontroller U2 does not detect any pulse at its input, thereby the PWM output signal is placed in the rank of setting.
Microcontroller IC2 comprises the eight bit register that is called PWM, and its control is present in the PWM output signal that is roughly square-wave form of the PWM register output of P27.Timer 0 in the microcontroller is according to the decision of the PWM value in register t
h(time interval of high PWM output signal) and t
LThe persistence length in (time interval of low-output signal).Timer 0 just produces and interrupts 4 after the time.In interruption subroutine, first test is current PWM register output state.If current PWM register is output as logical zero, it just is provided with the PWM register and is output as 1 so, and with the PWM value timer 0 of packing into.If electric current PWM register is output as logical one, it just is provided with the PWM register and is output as logical zero, and (255-PWM) timer 0 of packing into.The next time of interrupting of starting is proportional with the value in the timer 0 of packing into.t
hAdd t
LTime be configured to the PWM value irrelevant so that the pwm signal frequency is constant.Like this, when bigger PWM value, the more time of PWM register is in the logical one state, thereby provides higher average output brightness adjustment control voltage at pin two 7.Because logical zero is 0V, logical one is 5V, and when the brightness adjustment control voltage range that is provided with from 0.4V～3V, it is 8%～60% that this scope makes the PWM duty factor.
Pulse call subroutine on the terminals P 31 " interrupts 1 ".Program adds 1 to the value that is called the register of " umber of pulse " " to interrupt 1 ".The every 50ms of brightness adjustment control (CDL) circulation that is contained in the coding among the microcontroller IC2 checks once the value in " umber of pulse " register.Because 50ms equals 3 power cycles, the value of " umber of pulse " register will determine whether lighting level should change.Value in " umber of pulse " register does not have pulse when equalling zero (0), so lighting level or PWM value do not change.When register " umber of pulse " when equaling 1, the PWM value reduces, up to reducing to default minimum value.When register " umber of pulse " when equaling 2, PWM increases, up to reaching default maximum.Therefore, interface circuit makes ballast automatically receive the light modulation input from wall controller, and produces the DC signal, inputs to the lighting level of controller G with the control fluorescent lamp.
Under the non-light modulation condition, described ballast keeps power factor＞0.99, THD＜10% and crest factor＜1.6, therefore, this circuit had both satisfied the needs of dimmable ballast, even also provide High Power Factor and maintenance THD, EMI and element stress very low simultaneously under minimum light modulation level.
Claims (13)
1, a kind of system that is used to make lamp work comprises:
Two input terminals that link to each other with sinusoidal voltage source;
With the code device that described input terminal links to each other, be used for the part of the sinusoidal power voltage half period of disturbance predetermined quantity, the common control cycle that forms of the sinusoidal power voltage half period of described predetermined quantity;
Ballast circuit, it comprises:
The ballast input terminal that is connected with described code device is used for receiving by the sinusoidal power voltage of disturbance at the lamp duration of work;
Be used for producing the device I of lamp current from the sinusoidal power voltage of disturbance;
I links to each other and is used for controlling according to control signal the device II of the operating characteristic of lamp with device;
Produce the decoding device of control signal according to the shape of control cycle; It is characterized in that, the disturbance that applies by code device only change sinusoidal power voltage each by the amplitude of the sinusoidal power voltage of the part of disturbance half period.
2, the system as claimed in claim 1 is characterized in that, this part of each half period be the half period 10% and 50% between, be preferably between 10% and 25%.
3, system as claimed in claim 1 or 2 is characterized in that, this disturbance is a phase truncation.
As claim 1,2 or 3 described systems, it is characterized in that 4, decoding device comprises carried out the device of differential by the sinusoidal power voltage of disturbance.
5, as one in the above-mentioned claim or multinomial described system, it is characterized in that, predetermined amounts increased the lamp operating characteristic when device of Control work characteristic was measured first kind of shape of control cycle at decoding device, and predetermined amounts reduces the lamp operating characteristic when decoding device is measured second kind of shape of control cycle.
6, as one in the above-mentioned claim or multinomial described system, it is characterized in that, constitute described control cycle by two of supply voltage continuous disturbance half periods and non-disturbance half period betwixt, and dim signal depends on the duration during the control cycle.
7, as claim 1,2,3,4 or 5 described systems, it is characterized in that described control cycle comprises the half period of the sinusoidal power voltage of fixed qty.
As one in the above-mentioned claim or multinomial described system, it is characterized in that 8, control cycle is expressed as a binary number, the non-disturbance half period of each of control cycle, each disturbance half period was corresponding to " 1 " (one) corresponding to " 0 " (zero).
As one in the above-mentioned claim or multinomial described system, it is characterized in that 9, control cycle is expressed as a binary number, the non-disturbance cycle of each of control cycle, each disturbance half period was corresponding to " 0 " (zero) corresponding to " 1 " (one).
10, system as claimed in claim 7 is characterized in that, signal depends on that sinusoidal power voltage is by the quantity of the half period of disturbance in the control cycle.
As one in the above-mentioned claim or multinomial described system, it is characterized in that 11, the operating characteristic of lamp is its light output.
12, be applicable to the code device of in the aforesaid right requirement or multinomial system.
13, be applicable to the ballast circuit of in the aforesaid right requirement or multinomial system.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US51285695A | 1995-08-09 | 1995-08-09 | |
| US08/512,856 | 1995-08-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1161126A true CN1161126A (en) | 1997-10-01 |
| CN1179607C CN1179607C (en) | 2004-12-08 |
Family
ID=24040879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB961908920A Expired - Fee Related CN1179607C (en) | 1995-08-09 | 1996-07-31 | System for operating a lamp |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0791281B1 (en) |
| JP (1) | JPH10507578A (en) |
| CN (1) | CN1179607C (en) |
| CA (1) | CA2202070A1 (en) |
| DE (1) | DE69616018T2 (en) |
| MX (1) | MX9702563A (en) |
| TW (1) | TW354176U (en) |
| WO (1) | WO1997006654A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1787708A (en) * | 2004-12-06 | 2006-06-14 | 苏庚癸 | Method for central controlling lamplight and system thereof |
| CN100420351C (en) * | 2001-05-08 | 2008-09-17 | 皇家菲利浦电子有限公司 | Pulse-width modulation for operating high pressure lamps |
| CN102217422A (en) * | 2008-09-23 | 2011-10-12 | Elb电子股份有限公司 | System for control of ballast illumination in step dimming and continuous dimming modes |
| CN102215621A (en) * | 2010-04-09 | 2011-10-12 | 艾克斯希特隆公司 | Power supply unit, light emitting apparatus and dimming method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2728698T3 (en) | 2009-06-25 | 2019-10-28 | Signify Holding Bv | Exciter circuit to cooperate with a wall attenuator |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4024528A (en) * | 1975-10-30 | 1977-05-17 | Boggs Luther M | Remote switching system |
| US4329678A (en) * | 1980-03-24 | 1982-05-11 | Hatfield Jerry M | Method and apparatus for remotely controlling an electrical appliance |
| ATE172333T1 (en) * | 1990-08-13 | 1998-10-15 | Electronic Ballast Tech | REMOTE CONTROL FOR AN ELECTRICAL DEVICE |
| US5227762A (en) * | 1990-10-26 | 1993-07-13 | Thomas Industries Inc. | Power line carrier controlled lighting system |
-
1996
- 1996-07-31 CA CA002202070A patent/CA2202070A1/en not_active Abandoned
- 1996-07-31 WO PCT/IB1996/000762 patent/WO1997006654A1/en active IP Right Grant
- 1996-07-31 JP JP9508263A patent/JPH10507578A/en not_active Ceased
- 1996-07-31 EP EP96923024A patent/EP0791281B1/en not_active Expired - Lifetime
- 1996-07-31 CN CNB961908920A patent/CN1179607C/en not_active Expired - Fee Related
- 1996-07-31 MX MX9702563A patent/MX9702563A/en unknown
- 1996-07-31 DE DE69616018T patent/DE69616018T2/en not_active Expired - Fee Related
- 1996-12-21 TW TW085220476U patent/TW354176U/en unknown
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100420351C (en) * | 2001-05-08 | 2008-09-17 | 皇家菲利浦电子有限公司 | Pulse-width modulation for operating high pressure lamps |
| CN1787708A (en) * | 2004-12-06 | 2006-06-14 | 苏庚癸 | Method for central controlling lamplight and system thereof |
| CN1787708B (en) * | 2004-12-06 | 2013-06-19 | 苏昭荣 | Method for central controlling lamplight and system thereof |
| CN102217422A (en) * | 2008-09-23 | 2011-10-12 | Elb电子股份有限公司 | System for control of ballast illumination in step dimming and continuous dimming modes |
| CN102215621A (en) * | 2010-04-09 | 2011-10-12 | 艾克斯希特隆公司 | Power supply unit, light emitting apparatus and dimming method thereof |
| CN102215621B (en) * | 2010-04-09 | 2014-04-30 | 艾克斯希特隆公司 | Power supply unit with dimming function, and light emitting apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| DE69616018T2 (en) | 2002-06-06 |
| MX9702563A (en) | 1997-06-28 |
| DE69616018D1 (en) | 2001-11-22 |
| WO1997006654A1 (en) | 1997-02-20 |
| TW354176U (en) | 1999-03-01 |
| EP0791281B1 (en) | 2001-10-17 |
| CA2202070A1 (en) | 1997-02-20 |
| CN1179607C (en) | 2004-12-08 |
| EP0791281A1 (en) | 1997-08-27 |
| JPH10507578A (en) | 1998-07-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1143608C (en) | Ballast circuit | |
| US5872429A (en) | Coded communication system and method for controlling an electric lamp | |
| US5107184A (en) | Remote control of fluorescent lamp ballast using power flow interruption coding with means to maintain filament voltage substantially constant as the lamp voltage decreases | |
| US5055746A (en) | Remote control of fluorescent lamp ballast using power flow interruption coding with means to maintain filament voltage substantially constant as the lamp voltage decreases | |
| CA2049075C (en) | Remote control of fluorescent lamp ballast using power flow interruptioncoding with means to maintain filament voltage substantially constant as the lamp voltage decreases | |
| US5068576A (en) | Remote control of fluorescent lamp ballast using power flow interruption coding with means to maintain filament voltage substantially constant as the lamp voltage decreases | |
| CN1161008C (en) | Triac dimmable ballast | |
| CA2328270C (en) | Low distortion line dimmer and dimming ballast | |
| CN1179607C (en) | System for operating a lamp | |
| CN108811241B (en) | Circuit for controlling brightness of multiple LED lamps through single live wire | |
| WO2005022952A2 (en) | Apparatus and method for providing dimming control of lamps and electrical lighting systems | |
| US6509698B1 (en) | Operating apparatus of discharge lamp | |
| MXPA97002563A (en) | System to operate a lamp | |
| CN1366796A (en) | Switched dimming ballast | |
| CN1541506A (en) | Method for color mixng of HID lamps operated at VHF frequencies using duty cycle modulation | |
| CN1717144A (en) | Cold-cathode fluorescence lamp digital drive system | |
| EP1297728A1 (en) | Circuit device | |
| CA2191521C (en) | Electronic ballast lighting power control device | |
| CN1394464A (en) | Circuit arrangement | |
| WO2001099476A1 (en) | Circuit device | |
| JP3399024B2 (en) | Discharge lamp lighting device for continuous dimming | |
| KR20030077841A (en) | Dimming apparatus | |
| JPS63245898A (en) | Method of dimming in discharge lamp lighter | |
| JPH02144806A (en) | Electric discharge lamp lighting device | |
| CN1477916A (en) | Frequency-changing light-regulating control system for daylight lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |