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WO2011153831A1 - Système de commande destiné à une source de lampe - Google Patents

Système de commande destiné à une source de lampe Download PDF

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Publication number
WO2011153831A1
WO2011153831A1 PCT/CN2011/070236 CN2011070236W WO2011153831A1 WO 2011153831 A1 WO2011153831 A1 WO 2011153831A1 CN 2011070236 W CN2011070236 W CN 2011070236W WO 2011153831 A1 WO2011153831 A1 WO 2011153831A1
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WO
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Prior art keywords
controller
lamp
current
voltage
lamp body
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Ceased
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PCT/CN2011/070236
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English (en)
Chinese (zh)
Inventor
郭建志
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Individual
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Individual
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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
    • 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
    • H05B41/3925—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by frequency variation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
    • H02M1/4208—Arrangements for improving power factor of AC input
    • 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
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Definitions

  • the invention relates to a lamp, in particular to a lamp source control system mainly for regulating the output power of an electronic ballast.
  • the system of the invention can achieve light intensity control, temperature protection, automatic lamp start control, power measurement monitoring, The purpose of time and illumination planning.
  • FIG. 1 shows a relationship between the starting voltage of the HID lamp and time
  • FIG. 2 shows a relationship between the starting current of the HID lamp and the time.
  • the power signal driven by the HID lamp has two kinds of AC and DC. After the HID lamp is lit, the temperature of the electrodes at both ends is maintained. If the temperature of the electrode drops below a certain temperature, the electronic action will not be triggered, and the HID lamp will be extinguished.
  • AC signal drive is mainly to switch the two ends of the HID lamp to emit electrons to warm the two ends of the electrode ;
  • the DC signal drive value can be used according to the HID lamp placement state. In this mode, the HID lamp must be placed vertically. Since the heat is flowing upward, the upper electrode temperature is higher than the lower electrode, so the DC drive can be used to fix the cathode end at the upper position. The anode end is in the lower position.
  • Control the HID lamp's luminous power mainly to adjust the current input to the HID lamp.
  • the HID lamp has a fixed luminous power, so the control program drives the HID lamp for normal luminous power, and then adjusts the input current to control the HID luminous power after the HID lamp is stabilized.
  • the object of the present invention is to provide a light source control system mainly for regulating the output power of an electronic ballast, wherein the output power of the step-down DC voltage converter in the ballast is controlled, and various types of systems are installed in the system.
  • a sensor for the purpose of performing power system monitoring devices, light field brightness monitoring, and the like.
  • the present invention provides a light source control system mainly comprising an output power of an electronic ballast, comprising at least one light source, the light source comprising: a lamp body; and a ballast connected to the lamp body
  • the ballast includes: a rectified boost PFC controller for converting AC current into DC current and boosting; and a step-down DC voltage converter for DC To DC conversion, this DC to The DC conversion is mainly based on current control; wherein a PWM controller is connected in series between a gate or a base input terminal of a transistor of the step-down DC voltage converter and an input end of the lamp body, the PWM controller An adjustable variable oscillator and an oscillation regulating processor; wherein the adjustable variable oscillator generates a specific frequency signal to the PWM controller, and the PWM controller receives a feedback signal from the input end of the lamp body to The specific frequency signal from the adjustable oscillator output is pulse width modulated, thereby changing the output power of the buck DC voltage converter, thereby changing the brightness of the lamp
  • Figure 1 shows the relationship between the starting voltage of the HID lamp and time
  • Figure 2 shows the relationship between the starting current of HID lamp and time
  • Figure 3-1 and Figure 3-2 show the internal function of the HID ballast.
  • Figure 3-1 is applicable to the AC type HID lamp
  • Figure 3-2 is applicable to the DC type HID lamp.
  • Figure 4 is a simple circuit model of a buck DC-DC converter
  • Figure 5 shows the buck DC voltage converter (Buck DC-DC) Transistor Q1 is connected in series with a PWM controller, and provides an internal frequency signal to the PWM controller with an oscillator;
  • Figure 6 shows the current state of each element shown in Figure 5;
  • Figure 7 shows the current state of each element shown in Figure 5;
  • Figure 8 is a flow chart for controlling the PWM control action of Q1;
  • Figure 9 is a simplified schematic diagram of PWM control, which is a relationship diagram under load fixation
  • FIG 10 is a simplified schematic diagram of PWM control, which is a relationship diagram in which the load becomes small;
  • FIG 11 is a simplified schematic diagram of PWM control, which is a relationship diagram in which the load becomes large;
  • Figure 12 is a situation in which the current and the PWM signal have a duty cycle change under a certain frequency and load
  • Figure 13 is a diagram showing a change in the duty cycle of the current and the PWM signal when the frequency becomes twice;
  • Figure 15 is a first aspect of the control circuit of the present invention.
  • Figure 16 is a second aspect of the control circuit of the present invention.
  • Figure 17 is a third aspect of the control circuit of the present invention.
  • the adjustable variable oscillator is a quartz oscillator plus a frequency converter
  • Figure 19 is an overall system of the luminaire of the present invention.
  • Figure 20 is a diagram of the system formed by multiple luminaires and monitoring centers in the present invention.
  • the present invention is applicable to various AC and DC-activated lamp bodies in the following structural examples, but in the following examples, the AC-type lamp body is exemplified, but the present invention is applicable to various AC and DC-activated lamp bodies. This example is not intended to limit the scope of the invention. A preferred embodiment of the present invention is described in detail below.
  • Figure 3-1 and Figure 3-2 show the internal function of the HID ballast.
  • Figure 3-1 is applicable to the AC type HID lamp
  • Figure 3-2 is applicable to the DC type HID lamp. Since most HID lamps are driven by AC signals, the general utility power is 110-240V. AC, can not directly provide the instantaneous high voltage and start-up voltage value when HID starts, so it is necessary to use a ballast with adjustable voltage.
  • the basic structure of the general electronic ballast can mainly distinguish three blocks:
  • the first stage is the Rectifier Boost PFC (Power Factor Correction) control (AC) To DC (AC to DC):
  • the main function of this block is to convert the AC to DC and boost (the voltage value of the boost is based on the HID lamp start voltage value and the igniter design).
  • the block includes an EMI (electromagnetic interference) filter, a rectifier, and a boost PFC to improve AC to DC efficiency.
  • EMI electromagnetic interference
  • the ballast front end also adds a boost function to facilitate the ignition circuit. Pressed.
  • a step-down DC voltage converter (Buck DC-DC Converter) for DC to DC conversion
  • this DC to The DC conversion is mainly based on current control, and its purpose is to control the luminous power of the HID lamp (because the HID lamp controls the luminous power with current), when the HID lamp is started, because the high voltage is required, the HID lamp enters the steady state after the driving.
  • the voltage is much lower than the HID startup voltage (this is the HID lamp body characteristic), so the second stage step-down DC voltage converter (Buck The output voltage value of DC-DC Converter is variable. Since the HID lamp body is mainly stabilized by current, the step-down type DC voltage converter of current control type (Buck) is used.
  • DC-DC Converter DC-DC Converter
  • the third stage for the AC type HID lamp is full bridge output control (DC to AC) and an ignition circuit (ignite): This function is mainly to convert DC into AC driven HID lamp illumination.
  • the HID lamp for the DC type is an ignition circuit.
  • the current and voltage of the entire output driven HID lamp can be controlled by the second stage.
  • Figure 4 is a step-down DC voltage converter (Buck DC-DC Converter)
  • a simple circuit model that mainly includes a transistor Q1 (such as a bipolar transistor or a field effect transistor)
  • the transistor which functions as a power switch, flows into the input of the transistor and includes an LRC circuit at the output of the transistor for current and voltage regulation.
  • the LRC circuit described in this example contains: A diode D1 connected in series, an inductor L1 connected to the diode D1, and an output terminal of the inductor L1 are respectively connected in series with a capacitor C1 and a load resistor RL.
  • Control transistor Q1 control terminal by controlling Q1 switch to control the charge and discharge state of the inductor and capacitor, it can cause the voltage to rise and fall.
  • the current and voltage detection at the output end are used as the feedback signal to control the pulse of the Q1 switching frequency signal. Width ratio Cycle) to achieve the buck size.
  • a step-down DC voltage converter (Buck DC-DC) Converter) and transistor Q1 are connected in series with a PWM (pulse width
  • the modulation pulse width modulation controller can control the overall power output as long as it can control the switching signal of the PWM to the transistor, so an oscillator provides a fundamental frequency signal to the PWM controller to enable the PWM controller to Application of feedback signal from the load terminal to regulate the step-down DC voltage converter (Buck DC-DC Converter's working signal pulse width, so it can also regulate the charge and discharge time of the capacitor and inductor and thus change the voltage, current and power at the output, so the brightness of the HID lamp also changes.
  • the change in voltage, current, and power at such an output is caused by feedback from the circuit itself and cannot be regulated by humans.
  • FIG. 6 and FIG. 7 shows the current state of each component shown in FIG. 5 , and the step-down DC voltage converter (Buck DC-DC) in the electronic ballast of the HID lamp.
  • Converter is the current feedback to control the PWM controller output signal pulse ratio (duty cycle) (Because the HID lamp's illuminating characteristics are driven by current), the current sensor is used at the output of the circuit to detect the output current.
  • Iu means is the current signal state at the output of the circuit (also the current through the inductor L1), and V1 is the state of the input of the inductor L1, which is the switching state of Q1.
  • the buck DC voltage converter (Buck DC-DC)
  • the feedback logic control of Converter can be achieved in the following way.
  • Step-down DC voltage converter with current feedback (Buck DC-DC In Converter)
  • the current operation range setting is used as the basis for Q1 switching.
  • the current feedback control does not excessively increase the output current of the protection circuit to prevent the load from burning. Then the minimum current limit is controlled by the frequency of the drive to avoid insufficient power supply.
  • Buck DC-DC converter for influencing current feedback control
  • the feedback calculation of the Converter signal has the following factors: RL load size, L1 inductor value, C1 capacitor value, limited current range, and voltage range.
  • the PWM controller in Figure 5 adds an oscillator, so the frequency signal of the PWM controller is the oscillation signal generated by the oscillator, and then the current Iu is detected, and the PWM signal is output after judging.
  • Figure 8 is a flow chart for controlling the PWM signal action of Q1. The main mode of this control mode is to detect whether the circuit has overcurrent protection. The following briefly describes how this control mode controls the output current.
  • Figure 9 to Figure 11 are simple schematic diagrams of PWM control, when the magnitude of the load is different, for the PWM signal and the step-down DC voltage converter (Buck DC-DC) Converter) current output control state diagram.
  • the following is the pulse width ratio of the PWM signal to the fixed frequency and load variation (Duty) Cycle) analysis.
  • Figure 9 is a diagram of the relationship under load.
  • Figure 12 and Figure 13 show the pulse width ratio of the PWM signal when the load, current limit, capacitance, and inductance are fixed. Cycle) The effect of changes on the overall buck DC-DC Converter system.
  • Figure 12 shows the condition at a certain frequency and load
  • Figure 13 shows the pulse-to-width ratio of the current to the PWM signal when the frequency becomes twice (duty) Cycle) change, from the figure above, the overall current will become larger, the current is now due to the frequency and current feedback algorithm, the high-frequency current lower limit is greater than the low-frequency current lower limit.
  • this frequency conversion adjustment power mode can effectively control the HID brightness.
  • the pulse width ratio of the output PWM signal can be changed by controlling the fundamental frequency of the PWM controller (duty) Cycle), to control the charging and discharging time of the inductor L1 and the capacitor C1, to control the luminous power inside the HID lamp body.
  • the invention proposes a method for regulating the PWM fundamental frequency signal:
  • an adjustable variable oscillator 200 and an oscillation regulating processor 300 are added to the PWM controller.
  • variable-varying oscillator 200 is configured by an electronic oscillator 210 plus a regulating circuit, wherein the electronic oscillator 210 is an LC (L: Inductance, C: Capacitor)
  • LC Inductance
  • C Capacitor
  • the electronic oscillator is an oscillator formed by means of an electronic component.
  • the control circuit may be connected to the outside of the electronic oscillator for the purpose of regulating the oscillation frequency.
  • the control circuit is: Multiple resistors or capacitors to achieve the purpose of regulating the oscillator frequency.
  • the control circuit in the present invention has three aspects.
  • the control circuit is connected to a plurality of capacitors C0 to C4 at one end of the oscillator.
  • the capacitors are further connected in parallel to a capacitor switch SW1.
  • the other end of the switch is connected to a resistor R, and the resistor R is connected to The other end of the electronic oscillator.
  • the capacitor switching switch SW1 is applied to switch so that the resistor is only connected in series with one of the plurality of capacitors C0 to C4, so that the oscillation frequency of the entire oscillator can be changed.
  • the capacitor switching switch SW1 is connected to the oscillation regulation processor.
  • the oscillation regulation processor can have built-in control software to automatically adjust the switching of the capacitance switch SW1 to achieve the required effect.
  • the output of the oscillation regulation processor can also be controlled in an artificial manner to change the output frequency of the variable-varying oscillator.
  • one end of the oscillator is connected to a single capacitor C, and the capacitor is connected in series to a resistance switch SW2.
  • the other end of the switch is connected to a plurality of parallel resistors R0 to R4, and resistors R0 to R4. Connect to the other end of the electronic oscillator.
  • the resistance switching switch SW2 is applied to switch so that the capacitance is only connected in parallel with one of the plurality of resistors R0 to R4, so that the oscillation frequency of the entire oscillator can be changed.
  • the resistance switch SW2 is connected to the oscillation regulation processor.
  • the oscillation regulation processor can have built-in control software to automatically adjust the switching of the resistance switch SW2 to achieve the required effect.
  • the output of the oscillation regulation processor can also be controlled in an artificial manner to change the output frequency of the variable-varying oscillator.
  • One end of the oscillator is connected to a capacitor switching switch SW1, and the capacitor switching switch SW1 is connected to the plurality of capacitors C0 to C4.
  • the capacitor switching switch SW1 is used to switch so that only one circuit is used. Capacitor connections, other capacitors are open. These capacitors C0 to C4 are further connected in parallel to a resistance switching switch SW2.
  • the other end of the resistance switching switch SW2 is connected to a plurality of parallel resistors R0 to R4, and the resistors R0 to R4 are connected to the other end of the electronic oscillator.
  • the switching of the resistor switch SW2 is applied such that only one resistor is connected in the circuit, and the other resistors are open.
  • the present invention applies a plurality of different capacitors C0 to C4 and a plurality of different parallel resistors R0 to R4 to enable the circuit to have a plurality of different oscillation frequencies.
  • the capacitance switching switch SW1 and the resistance switching switch SW2 are connected to the oscillation regulation processor.
  • the oscillation regulation processor can have built-in control software to automatically adjust the switching of the capacitance switch SW1 and the resistance switch SW2 to achieve the required effect.
  • the output of the oscillation regulation processor can also be controlled in an artificial manner to change the output frequency of the variable-varying oscillator.
  • the oscillation control processor may be a logic circuit such as an MCU or an FPGA/CPLD.
  • another variable mode oscillator of the present invention is a quartz oscillator 400 plus a frequency converter 401.
  • the quartz oscillator 400 outputs a signal of a fixed frequency, and inputs the signal into the chassis.
  • the inverter 401 is connected to the oscillation control processor 402, and the user can input the frequency to be regulated or the built-in frequency control software of the oscillation regulation processor via the oscillation regulation processor 402 to automatically Control the output of the inverter.
  • the frequency converter 401 is connected to the PWM controller 100.
  • a step-down DC voltage converter (Buck DC-DC) can be directly added to the electronic ballast of the existing HID lamp.
  • Converter's frequency control function which can have brightness control function for HID lamps.
  • the frequency conversion control circuit of the present invention that is, the illumination power of the HID lamp can be arbitrarily controlled, and the frequency conversion control circuit is also a brightness controller.
  • the present invention also includes a control system for a single lamp and a multi-lamp architecture, which is mainly to install some sensors on the system, and related processors for various adjustments.
  • the control system is described below, and please refer to FIG. 19 and FIG. 20:
  • At least one HID light source architecture comprising:
  • An HID lamp body 510 An HID lamp body 510;
  • a ballast 500 is coupled to the HID lamp body 510, the ballast 500 comprising:
  • a rectified boost PFC controller (AC to DC) 501 The main function is to convert the AC to DC and boost (the voltage value of the boost is determined according to the HID lamp start voltage value and the ignite design);
  • a PWM controller 504 is connected in series between a gate or a base input terminal of a transistor and an output terminal of the HID lamp, and the PWM controller 504 is externally coupled with an adjustable variable oscillator 521 and an oscillation regulating processor. 522; and
  • a light controller 601 a control center of the HID lamp body of the present invention
  • a first brightness sensor 512 is located at the end of the HID lamp body 510 to measure the brightness of the HID lamp body 510.
  • the first brightness sensor 512 is connected to the light controller 601.
  • the lamp controller 601 can adjust the brightness of the HID lamp 510 accordingly. On the one hand, it can provide the required brightness according to the needs, on the other hand, it can also achieve the purpose of energy saving, such as providing low brightness at dusk and high brightness at night.
  • a first temperature sensor 511 is used to sense the temperature of the HID lamp body 510 and to transfer the temperature to the lamp controller.
  • the lamp controller 601 can appropriately adjust the pulse width ratio of the output of the PWM controller 100 according to the temperature (duty Cycle); or when the temperature is too high, turn off the luminaire or reduce the luminous power of the HID lamp body to maintain the safety of the luminaire.
  • a first voltage sensor 531 for measuring a voltage difference across the HID lamp body 510, the first voltage sensor 531 being connected to the lamp controller 601, so that the lamp controller 601 can know
  • the voltage of the HID lamp body 510 is used to monitor whether the HID lamp body is operating normally.
  • a first current sensor 532 is used to measure the current of the HID lamp body 510, and the first current sensor 532 is connected to the lamp controller 601.
  • the lamp controller 601 can calculate the power of the lamp from voltage and current.
  • the lamp controller may calculate the input power of the ballast by the voltage obtained by the first voltage sensor 531 and the current obtained by the first current sensor 532.
  • a second voltage sensor 541 is used to measure the voltage at the input of the HID ballast 500.
  • a second current sensor 542 is configured to measure the current at the input of the HID ballast 500.
  • the lamp controller may calculate the input power of the ballast by the voltage obtained by the second voltage sensor 531 and the current obtained by the second current sensor 532.
  • a second brightness sensor 551 is used to monitor the external sunlight condition of the HID lamp, and the second brightness sensor 551 is connected to the lamp controller 601.
  • the lamp controller 601 is used as a basis for switching the HID lamp body according to the measured illuminance condition.
  • the second brightness sensor 551 functions to detect the ambient light intensity, the sunshine time, and the light intensity, for example, to distinguish between daytime or night, or to automatically detect that the external illumination is insufficient, and the illumination must be turned on to provide sufficient illumination.
  • a communication interface 602 is connected to the lamp controller 601 as an interface for signal transmission between the lamp controller 601 and the monitoring center 603.
  • the communication interface 602 in the present invention may be a wired or wireless communication interface.
  • a monitoring center 603 connects all the light controllers 601 via the communication interface 602. When there are more than one light source, the monitoring center 603 can perform overall management according to the data transmitted by the light controller 601 to make all the The lamp body exhibits different effects, including brightness, temperature, energy saving, and the like.
  • the lamp controller 601 receives the first brightness sensor 512, the first temperature sensor 511, the first voltage sensor 531, The first current sensor 532, the second voltage sensor 541 After the second current sensor 542 and the second brightness sensor 551 obtain the requirements of the system according to the built-in program, the two modes can be applied to adjust the lamp body 510.
  • the first mode is that the lamp controller 601 inputs an adjustment signal to the oscillation regulation processor 522, so that the oscillation regulation processor 522 outputs a frequency change signal and the adjustable variable oscillator 521, thereby outputting a required fundamental frequency.
  • Another advantage of this control mode is that the state of the HID lamp body 510 is sensed at any time, so that the HID lamp body 510 can be operated for an extended period of time if needed.
  • the second mode is that the lamp controller 601 directly changes the power on or off of the system 530 to adjust the HID lamp body to turn the lamp body on or off.
  • the light intensity control, temperature protection, HID lamp automatic start control, power measurement monitoring, time and illumination planning purposes can be achieved.
  • the above-described lamp controller 601 and the oscillation regulation processor 522 in the present invention can be integrated in the same processor.
  • the lamp controller end of the present invention also includes a plurality of expansion joints to provide some special functionality.
  • the expansion connector can be an output input (I/O) connector, an alternating current to direct current (ADC), a direct current communication (DAC) connector, a communication connector (such as SPI, I2C, UART, USB, etc.), so it can be used with other functions.
  • Measurement system connection such as : Warning (alarm) system or monitoring system, such as detecting carbon dioxide solubility, indoor temperature and humidity, or fire alarm conditions; if it is applied to outdoor lighting, if the lamp has a solar power system connected or wind power Renewable energy systems such as systems, and then integrate the power status of these renewable energy systems to monitor the power consumption and storage status of each independent renewable energy power generation system.
  • the above functions can directly modify the single-chip micro-process internal firmware on the lamp controller, and have a relatively large flexible application space.
  • the start of the Dimming action is a preheating period of about 5 to 15 minutes when the HID bulb is just started, and the Dimming control is controlled after this stabilization. This is the characteristics of HID lamps, and according to different manufacturers, HID lamps will have some length differences.
  • the FM controller power controller or brightness controller
  • the FM controller will first let the HID lamp pass the preheating stabilization period (that is, the HID lamp is fully active. After the power), start the control action of Dimming. Because this FM controller is suitable for processing architecture design, the length of this preheating stabilization period can be set according to different HID lamp types, and it is not necessary to modify the internal structure of the original electronic ballast.
  • the advantages of the present invention are: (1) without modifying the original HID lamp electronic ballast architecture, the brightness controller can be directly added, and the power supply on the ballast can be directly used without an additional power system.
  • the control interface of the brightness controller is the frequency signal output (non-general DC control), such as the frequency modulation method described above.
  • the function of this brightness controller is to control the luminous power of HID, which can be used in many intelligent lighting control. Because the brightness controller has a microprocessor control inside, it can be directly modified by program and reserved interface expansion function.
  • An additional light intensity feedback control interface, time relative light intensity control, automatic start HID light device, power system monitoring device, and light field brightness monitoring can be added.
  • the function of the brightness controller is to control the luminous power of HID, which can be used in many intelligent lighting control. Because the brightness controller itself is a single-chip processor, it can be directly modified by program and reserved interface.

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  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

La présente invention a trait à un système de commande destiné à une source de lampe qui comprend une lampe (510), un ballast (500) connecté à la lampe (510) et un organe de commande de lampe (601). Le ballast (500) comprend un organe de commande de correction du facteur de puissance (PFC) de suralimentation de redressement et un convertisseur de tension continue de compensation (502). Un organe de commande de modulation d'impulsions en durée (MID) (100) est branché en série entre la borne d'entrée de grille/base d'un transistor du convertisseur de tension continue de compensation (502) et la borne de sortie de lampe. L'organe de commande de MID (100) se voit allouer un oscillateur réglable et variable (200) et un processeur de réglage et de commande d'oscillation (300). L'organe de commande de lampe (601) règle et commande la luminosité de la lampe (510) en fonction de la fréquence de sortie du processeur de réglage et de commande d'oscillation (300).
PCT/CN2011/070236 2010-06-07 2011-01-13 Système de commande destiné à une source de lampe Ceased WO2011153831A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201010194830.4 2010-06-07
CN2010101948304A CN102271449A (zh) 2010-06-07 2010-06-07 以调控电子式安定器输出功率为主的灯源控制系统

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WO2011153831A1 true WO2011153831A1 (fr) 2011-12-15

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CN110831273A (zh) * 2018-08-09 2020-02-21 泉崴科技有限公司 可调式安定器及其驱动方法
CN109288662A (zh) * 2018-09-26 2019-02-01 秦皇岛嘎哈医疗电子仪器有限公司 红光冲击波治疗仪
TWI667047B (zh) * 2018-10-01 2019-08-01 泉康科技有限公司 可自動調整臭氧排放濃度的裝置及其操作方法

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