WO2005072025A1 - A light-regulating circuit of an electromagnetic induction lamp and an electromagnetic induction lamp circuit - Google Patents

A light-regulating circuit of an electromagnetic induction lamp and an electromagnetic induction lamp circuit Download PDF

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Publication number
WO2005072025A1
WO2005072025A1 PCT/CN2005/000097 CN2005000097W WO2005072025A1 WO 2005072025 A1 WO2005072025 A1 WO 2005072025A1 CN 2005000097 W CN2005000097 W CN 2005000097W WO 2005072025 A1 WO2005072025 A1 WO 2005072025A1
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Prior art keywords
lamp
processing unit
circuit
central processing
electromagnetic induction
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PCT/CN2005/000097
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French (fr)
Chinese (zh)
Inventor
Weide Li
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Shanghai Hongyuan Lighting & Electrical Equipment Co., Ltd.
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Publication of WO2005072025A1 publication Critical patent/WO2005072025A1/en

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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
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • 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
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/282—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices

Definitions

  • the invention relates to an electromagnetic induction lamp circuit, and more particularly, to a dimming circuit used in the electromagnetic induction lamp circuit. Background technique
  • Electromagnetic induction lamps belong to a new generation of energy-saving products without filament, high luminous efficiency, long life, and high power factors. They can be widely used in homes, factories, office places, roads, construction sites, especially places where the lamp is not suitable for replacement. Since the electromagnetic induction lamp belongs to induction start ignition, there is no phenomenon that the whole lamp is scrapped due to the damage of the filament or the completion of the emission of electronic powder and the blackening of the tube due to the sputtering of electronic powder, which greatly extends the life of the entire lamp. And the working frequency exceeds 200KHz, which can eliminate the flicker phenomenon. However, the circuit design of the electromagnetic induction lamp is more difficult, and there are also many problems with the current electromagnetic induction lamp circuits.
  • FIG. 1 is a schematic circuit diagram of a conventional electromagnetic induction lamp circuit.
  • FIG. 1 does not include an anti-electromagnetic interference filter, a bridge rectifier circuit, and an active power factor corrector. These parts are common components of the electromagnetic induction lamp. It will not be described here.
  • a half-bridge inverter oscillation circuit composed of MOS tubes 100 and 102, a central processing unit 104, an electromagnetic inductor 106, and a power output unit 108.
  • the figure also includes some other auxiliary circuits, including protection circuits and start-up control circuits, which are not the place of the present invention. The technical solutions of the present invention will continue to use these circuits, so they will not be described in detail. .
  • the central processing unit is an L6570 chip, which provides a square wave for the two MOS tubes 100 and 102, and the power output device 108 is an inductor.
  • the working frequency of the prior art electromagnetic induction lamp is about 250KHz, and the light efficiency is between 50-60Lm / W.
  • the temperature of the MOS tubes 100 and 102 is high due to the long switching time of the circuit.
  • the L6570 is now used as a central processing unit with a single function, no dimming function, and lacks the voltage and current of the electromagnetic induction lamp. Sampling monitoring cannot adjust the working status of the electromagnetic induction lamp according to the real-time operating conditions.
  • An object of the present invention is to provide a dimming circuit for an electromagnetic induction lamp circuit, which can control and adjust the power of an electromagnetic induction lamp according to a sample signal of a lamp current and a lamp voltage, that is, to realize a dimming function.
  • Another object of the present invention is to provide an electromagnetic induction lamp circuit, which uses the above-mentioned dimming circuit to achieve power adjustment of the electromagnetic induction lamp, that is, to achieve a dimming function.
  • the present invention adopts the following technical solutions:
  • a dimming circuit of an electromagnetic induction lamp is connected to the electromagnetic induction lamp circuit.
  • the electromagnetic induction lamp circuit includes at least an active power factor corrector, a central processing unit, an electromagnetic inductor, and a power output device.
  • Optical circuits include:
  • a closed-loop dimming control signaller connected to the active power factor corrector and the central processing unit;
  • a lamp power feedback compensator connected to the central processing unit
  • a resistance-capacity oscillation timer connected to the central processing unit
  • a lamp current sampling annunciator is connected to the electromagnetic inductor and the central processing unit; a lamp voltage sampling annunciator is connected to the electromagnetic inductor and the central processing unit.
  • the central processing unit is a HY4501 chip.
  • the closed-loop dimming control signal device includes an oscillation circuit composed of a potentiometer and a capacitor connected in parallel, and several resistors connected in series.
  • the lamp power feedback compensator is formed by a resistor and a capacitor connected in series together with another resistor in parallel.
  • the resistance-capacitance oscillation timer includes at least a capacitor and a resistor.
  • the lamp voltage sampling annunciator includes at least a resistor connected in parallel to the lamp tube.
  • the lamp current sampling annunciator includes at least an inductor in series with the lamp tube and a resistor in parallel with the lamp tube.
  • An electromagnetic induction lamp circuit includes at least:
  • a power output device connected to the active power factor corrector
  • An electromagnetic inductor connected to the power output device, and also connected to an electromagnetic induction lamp tube; a central processing unit,
  • dimming circuit includes:
  • a closed-loop dimming control signaller connected to the active power factor corrector and the central processor
  • a lamp power feedback compensator connected to the central processing unit;
  • a resistance-capacity oscillation timer connected to the central processing unit;
  • a lamp current sampling annunciator is connected to the electromagnetic inductor and the central processing unit; a lamp voltage sampling annunciator is connected to the electromagnetic inductor and the central processing unit.
  • the electromagnetic induction lamp circuit according to the embodiment of the present invention further includes: an anti-interference electromagnetic filter connected to the input power source; a bridge rectifier circuit connected to the anti-interference electromagnetic filter and also connected to the active power A factor corrector; a protection circuit connected to the power output and the central processing unit; a start-up control circuit connected to an input power source and also connected to an electromagnetic induction lamp.
  • the central processing unit in the electromagnetic induction lamp circuit is a HY4051 chip;
  • the closed-loop dimming control annunciator includes an oscillation circuit composed of a potentiometer and a capacitor connected in parallel and several resistors connected in series;
  • the lamp The power feedback compensator is formed by a resistor and a capacitor connected in series with another resistor in parallel;
  • the resistance-capacitance oscillation timer includes at least a capacitor and a resistor;
  • the lamp voltage sample signaler includes at least one lamp connected in parallel Resistance on the tube;
  • the lamp current sample signaler includes at least an inductor connected in series on the tube and a resistance connected in parallel on the tube.
  • FIG. 1 is a partial circuit diagram of a conventional electromagnetic induction lamp circuit
  • FIG. 2 is a block diagram of a part of a circuit of the electromagnetic induction lamp circuit of the present invention.
  • Fig. 3 is a circuit diagram of a part of the circuit of the electromagnetic induction lamp circuit of the present invention. detailed description
  • FIG. 2 is a block diagram of some circuits of the electromagnetic induction lamp of the present invention.
  • the dimming circuit of the present invention is connected to the electromagnetic induction lamp circuit, and the electromagnetic induction lamp circuit should include at least an active power factor corrector. 200, a central processing unit 202, an electromagnetic inductor 204, and a power outputter 206.
  • the active power factor corrector 200 is connected to the power outputter 206, which provides stability for the subsequent circuit. DC voltage.
  • the electromagnetic sensor 204 is also connected to the power output device 206, and is also connected to the electromagnetic induction lamp tube (not shown in the figure).
  • the power outputter 206 is used to provide output power.
  • the central processing unit 202 is not directly connected to the above components, and is used to control the operation of the entire circuit.
  • the dimming circuit of the present invention is connected to the electromagnetic induction lamp circuit described above.
  • the dimming circuit includes a closed-loop dimming control signal device 208, which is connected to the active power factor corrector 200 and the central processing unit 202, and samples the comparison voltage and provides an effective control voltage signal to the central processing unit 202. In one embodiment, It provides a DC voltage ranging from 0V to 4V.
  • the lamp power feedback compensator 210 is connected to the central processing unit 202.
  • the resistance-capacitance oscillation timer 212 is connected to the central processing unit 202 and is used to determine the minimum and maximum operating frequencies of the central processing unit 202.
  • the lamp current sampling signaler 214 is connected to the electromagnetic sensor 204 and the central processing unit 202, and is used for sampling the current signal of the electromagnetic sensor 204 and differentially input to the central processing unit 202 for active rectification.
  • the lamp voltage sampling signaler 216 is connected to the electromagnetic sensor 204 and the central processing unit 202, and collects the voltage signal of the electromagnetic sensor 204 and outputs the voltage signal to the central processing unit 202.
  • FIG. 3 is a circuit diagram of a part of a circuit of an embodiment of the present invention, that is, a dimming circuit part.
  • the central processing unit used in this embodiment is a HY4501 chip, which is a dedicated circuit for an electronic ballast with a dimming function, and its dimming range is between 10% and 100%.
  • the closed-loop dimming control signal device 208 is composed of resistors R1, R2, potentiometer R3, and capacitor CI.
  • the resistance value of potentiometer R3 is adjustable. It forms an RC oscillation circuit together with capacitor C1.
  • the value of the resistor R3 changes its oscillation frequency.
  • the output signal of the closed-loop dimming control signal device 208 is input to the DIM pin of the HY4501 chip.
  • the lamp power feedback compensator 210 is composed of a resistor R5 in series with a capacitor C2 and a resistor R6 in parallel, and its output is connected to the CRECT pin of the HY4051 chip.
  • the negative feedback signal is sent to the input of the internal error amplifier in the HY4051 chip to achieve closed-loop negative feedback.
  • the resistance-capacitance oscillation timer 212 includes a resistor RT, which is connected to the RF pin of the HY4501 chip, and a capacitor CT, which is connected to the CF pin of the HY4501 chip.
  • the resistor RT and the capacitor CT and HY4501 The chips together determine the operating frequency of the entire circuit.
  • the lamp current sampling signaller 214 in this embodiment is an inductor LN connected in series on the lamp tube and a resistor R4 connected in parallel on the lamp tube, which samples the current signal of the lamp tube and inputs it to the IL1 and IL2 pins of the HY4501 chip .
  • the lamp voltage sampling signal 216 is a resistor R7 connected in parallel to the lamp, and the voltage signal of the sampled lamp is input to the VL pin of the HY4501 chip.
  • L1 is a power output device 206.
  • the present invention also provides an electromagnetic induction lamp circuit using the above-mentioned dimming circuit, which should include at least the following components: Active power factor corrector;
  • a power output device connected to the active power factor corrector
  • An electromagnetic inductor is connected to the power output device and is also connected to the electromagnetic induction lamp tube;
  • a dimming circuit comprising:
  • the closed-loop dimming control signaler is connected to the active power factor corrector and the central processing unit; the lamp power feedback compensator is connected to the central processing unit;
  • a resistance-capacity oscillation timer connected to the central processing unit
  • the lamp current sampling signal is connected to the electromagnetic inductor and the central processing unit; the lamp voltage sampling signal is connected to the electromagnetic inductor and the central processing unit.
  • These circuit components can be implemented by using the circuit diagrams disclosed in FIG. 2 and FIG. 3.
  • the electromagnetic induction lamp circuit should also include:
  • Anti-interference electromagnetic filter connected to the input power
  • a bridge rectifier circuit connected to the anti-interference electromagnetic filter and also connected to the active power factor corrector;
  • a protection circuit connected to the power output device and the central processing unit
  • the start-up control circuit is connected to the input power and is also connected to the electromagnetic induction lamp.
  • the above-mentioned anti-interference electromagnetic filter, bridge rectifier circuit, protection circuit and start-up control circuit all use the same circuit as in the prior art, which is known to those skilled in the art, so it will not be repeated here. After a detailed description, the circuit diagrams of these components will not be given.
  • the electric induction lamp using this kind of circuit can adjust the light in a wide voltage range of 85-300V, and can keep the power stable according to the monitoring of the lamp current and voltage signals.
  • the invention provides a dimming circuit for an electromagnetic induction lamp and an electromagnetic induction lamp circuit using the dimming circuit.
  • the function of monitoring and operating real-time adjustment of a lamp tube is added, and the electromagnetic induction lamp is further improved. Operating efficiency extends its service life.

Abstract

The present invention discloses a light-regulating circuit of an electromagnetic induction lamp, which is connected to a light-regulating electromagnetic induction lamp circuit at least comprising an active power factor corrector, a CPU, an electromagnetic inductor and a power follower. The light-regulating circuit comprises a closed-loop light-regulating control signal indicator connected with the active power factor corrector and the CPU, a lamp power feedback compensator connected with the CPU, a resistance-capacitance oscillating timer connected with the CPU, a lamp current sampling signal indicator connected with the electromagnetic inductor and the CPU, and a lamp voltage sampling signal indicator connected with the electromagnetic inductor and the CPU. It increases the function of monitoring to the operating condition of the strip lamp and carrying out real-time regulation, and further improves the operating efficiency of the electromagnetic induction lamp and prolongs its service life.

Description

电磁感应灯的调光电路和电磁感应灯电路 技术领域  Dimming circuit of electromagnetic induction lamp and electromagnetic induction lamp circuit
本发明涉及电磁感应灯电路， 尤其涉及一种用于电磁感应灯电路中的调光 电路。 背景技术  The invention relates to an electromagnetic induction lamp circuit, and more particularly, to a dimming circuit used in the electromagnetic induction lamp circuit. Background technique
电磁感应灯属于无灯丝、 高光效、 长寿命、 高功率因素的新一代节能产 品， 可广泛应用于家庭、 厂房、 办公场所、 道路、 工程建筑工地、 特别是灯 管不宜更换的场所。 由于电磁感应灯属于无极启动点燃， 对灯管不存在因灯 丝损坏或电子粉发射完以及电子粉溅射使灯管发黑等问题而造成整灯报废 的现象， 整灯寿命大大延长。 且工作频率超出 200KHz, 能消除频闪现象。 但电磁感应灯的电路设计的难度较大，且目前有的电磁感应灯电路也存在不 少问题。  Electromagnetic induction lamps belong to a new generation of energy-saving products without filament, high luminous efficiency, long life, and high power factors. They can be widely used in homes, factories, office places, roads, construction sites, especially places where the lamp is not suitable for replacement. Since the electromagnetic induction lamp belongs to induction start ignition, there is no phenomenon that the whole lamp is scrapped due to the damage of the filament or the completion of the emission of electronic powder and the blackening of the tube due to the sputtering of electronic powder, which greatly extends the life of the entire lamp. And the working frequency exceeds 200KHz, which can eliminate the flicker phenomenon. However, the circuit design of the electromagnetic induction lamp is more difficult, and there are also many problems with the current electromagnetic induction lamp circuits.
图 1是现有技术的电磁感应灯电路的电路示意图， 图 1中没有包括抗电 磁干扰滤波器， 桥式整流电路和有源功率因数校正器， 这几个部分为电磁感 应灯的通用部件， 这里就不再描述。 如图 1所示的电路中， MOS管 100和 102构成的半桥逆变振荡电路、 中央处理器 104、 电磁感应器 106、 功率输出 器 108。该图中还包括一些其它的辅助电路， 包括保护电路和启动控制电路， 这些并不是本发明的该进之处，本发明的技术方案中对于这些电路仍将继续 沿用， 因此就不作详细说明了。 在图 1所示的传统的电磁感应灯电路中， 中 央处理器为 L6570芯片， 该芯片为两只 MOS管 100和 102提供方波， 功率 输出器 108为一电感。 现有技术的电磁感应灯的工作频率在 250KHz左右， 光效在 50-60Lm/W之间。 工作时， 由于电路的开关时间较长， 导致 MOS管 100和 102的温度较高， 同时， 现在使用 L6570作为中央处理器功能单一， 没有调光的功能， 并且缺乏对电磁感应灯的电压和电流的采样监测， 不能根 据实时的运行情况来调整电磁感应灯的工作状态。 发明内容 本发明的目的是提供一种用于电磁感应灯电路的调光电路， 其可根据对灯 电流和灯电压的釆样信号来控制调整电磁感应灯的功率， 即实现调光功能。 FIG. 1 is a schematic circuit diagram of a conventional electromagnetic induction lamp circuit. FIG. 1 does not include an anti-electromagnetic interference filter, a bridge rectifier circuit, and an active power factor corrector. These parts are common components of the electromagnetic induction lamp. It will not be described here. In the circuit shown in FIG. 1, a half-bridge inverter oscillation circuit composed of MOS tubes 100 and 102, a central processing unit 104, an electromagnetic inductor 106, and a power output unit 108. The figure also includes some other auxiliary circuits, including protection circuits and start-up control circuits, which are not the place of the present invention. The technical solutions of the present invention will continue to use these circuits, so they will not be described in detail. . In the conventional electromagnetic induction lamp circuit shown in FIG. 1, the central processing unit is an L6570 chip, which provides a square wave for the two MOS tubes 100 and 102, and the power output device 108 is an inductor. The working frequency of the prior art electromagnetic induction lamp is about 250KHz, and the light efficiency is between 50-60Lm / W. During operation, the temperature of the MOS tubes 100 and 102 is high due to the long switching time of the circuit. At the same time, the L6570 is now used as a central processing unit with a single function, no dimming function, and lacks the voltage and current of the electromagnetic induction lamp. Sampling monitoring cannot adjust the working status of the electromagnetic induction lamp according to the real-time operating conditions. Summary of the invention An object of the present invention is to provide a dimming circuit for an electromagnetic induction lamp circuit, which can control and adjust the power of an electromagnetic induction lamp according to a sample signal of a lamp current and a lamp voltage, that is, to realize a dimming function.
本发明的另一目的是提供一种电磁感应灯电路， 其使用上述的调光电路来 实现对电磁感应灯的功率调整， 即实现调光功能。  Another object of the present invention is to provide an electromagnetic induction lamp circuit, which uses the above-mentioned dimming circuit to achieve power adjustment of the electromagnetic induction lamp, that is, to achieve a dimming function.
为了达到上述目的 , 本发明采用如下技术方案：  To achieve the above objective, the present invention adopts the following technical solutions:
一种电磁感应灯的调光电路， 连接于电磁感应灯电路上， 所述电磁感应 灯电路至少包括有源功率因数校正器、 中央处理器、 电磁感应器和功率输出 器， 其中， 所述调光电路包括：  A dimming circuit of an electromagnetic induction lamp is connected to the electromagnetic induction lamp circuit. The electromagnetic induction lamp circuit includes at least an active power factor corrector, a central processing unit, an electromagnetic inductor, and a power output device. Optical circuits include:
闭环调光控制信号器，与所述有源功率因数校正器及所述中央处理器相 连；  A closed-loop dimming control signaller connected to the active power factor corrector and the central processing unit;
灯功率反馈补偿器， 与所述中央处理器相连；  A lamp power feedback compensator connected to the central processing unit;
阻容振荡定时器， 与所述中央处理器相连；  A resistance-capacity oscillation timer connected to the central processing unit;
灯电流采样信号器， 与所述电磁感应器及所述中央处理器相连； 灯电压采样信号器， 与所述电磁感应器及所述中央处理器相连。  A lamp current sampling annunciator is connected to the electromagnetic inductor and the central processing unit; a lamp voltage sampling annunciator is connected to the electromagnetic inductor and the central processing unit.
按照本发明的实施例， 所述中央处理器为 HY4501芯片。 所述闭环调光 控制信号器包括电位器和电容并联组成的振荡电路和数个串联的电阻。所述 灯功率反馈补偿器由一电阻和一电容串联后一同与另一电阻并联而形成。所 述阻容振荡定时器至少包括一电容和一电阻。所述灯电压采样信号器至少包 括一并联在灯管上的电阻。所述灯电流采样信号器至少包括一串联在灯管上 的电感和一并联在灯管上的电阻。  According to an embodiment of the present invention, the central processing unit is a HY4501 chip. The closed-loop dimming control signal device includes an oscillation circuit composed of a potentiometer and a capacitor connected in parallel, and several resistors connected in series. The lamp power feedback compensator is formed by a resistor and a capacitor connected in series together with another resistor in parallel. The resistance-capacitance oscillation timer includes at least a capacitor and a resistor. The lamp voltage sampling annunciator includes at least a resistor connected in parallel to the lamp tube. The lamp current sampling annunciator includes at least an inductor in series with the lamp tube and a resistor in parallel with the lamp tube.
一种电磁感应灯电路， 至少包括：  An electromagnetic induction lamp circuit includes at least:
有源功率因数校正器；  Active power factor corrector;
功率输出器， 与所述有源功率因数校正器相连；  A power output device connected to the active power factor corrector;
电磁感应器， 与所述功率输出器相连， 还连接到电磁感应灯灯管； 中央处理器，  An electromagnetic inductor, connected to the power output device, and also connected to an electromagnetic induction lamp tube; a central processing unit,
其中， 还包括调光电路， 该调光电路包括，  Wherein, it also includes a dimming circuit, and the dimming circuit includes:
闭环调光控制信号器，与所述有源功率因数校正器及所述中央处理 器相连；  A closed-loop dimming control signaller connected to the active power factor corrector and the central processor;
灯功率反馈补偿器， 与所述中央处理器相连； 阻容振荡定时器， 与所述中央处理器相连； A lamp power feedback compensator connected to the central processing unit; A resistance-capacity oscillation timer connected to the central processing unit;
灯电流采样信号器， 与所述电磁感应器及所述中央处理器相连； 灯电压采样信号器， 与所述电磁感应器及所述中央处理器相连。 按照本发明的实施例所述的电磁感应灯电路还包括： 抗干扰电磁滤波 器， 与输入电源相连； 桥式整流电路， 与所述抗干扰电磁滤波器相连， 还连 接到所述有源功率因数校正器； 保护电路， 与所述功率输出器和中央处理器 相连； 启动控制电路， 与输入电源相连， 还连接到电磁感应灯。  A lamp current sampling annunciator is connected to the electromagnetic inductor and the central processing unit; a lamp voltage sampling annunciator is connected to the electromagnetic inductor and the central processing unit. The electromagnetic induction lamp circuit according to the embodiment of the present invention further includes: an anti-interference electromagnetic filter connected to the input power source; a bridge rectifier circuit connected to the anti-interference electromagnetic filter and also connected to the active power A factor corrector; a protection circuit connected to the power output and the central processing unit; a start-up control circuit connected to an input power source and also connected to an electromagnetic induction lamp.
按照本发明的实施例， 该电磁感应灯电路中所述中央处理器为 HY4051 芯片； 所述闭环调光控制信号器包括电位器和电容并联组成的振荡电路和数 个串联的电阻； 所述灯功率反馈补偿器由一电阻和一电容串联后一同与另一 电阻并联而形成； 所述阻容振荡定时器至少包括一电容和一电阻； 所述灯电 压釆样信号器至少包括一并联在灯管上的电阻； 所述灯电流釆样信号器至少 包括一串联在灯管上的电感和一并联在灯管上的电阻。 附图说明  According to an embodiment of the present invention, the central processing unit in the electromagnetic induction lamp circuit is a HY4051 chip; the closed-loop dimming control annunciator includes an oscillation circuit composed of a potentiometer and a capacitor connected in parallel and several resistors connected in series; the lamp The power feedback compensator is formed by a resistor and a capacitor connected in series with another resistor in parallel; the resistance-capacitance oscillation timer includes at least a capacitor and a resistor; the lamp voltage sample signaler includes at least one lamp connected in parallel Resistance on the tube; the lamp current sample signaler includes at least an inductor connected in series on the tube and a resistance connected in parallel on the tube. BRIEF DESCRIPTION OF THE DRAWINGS
图 1是传统技术的电磁感应灯电路的部分电路图；  FIG. 1 is a partial circuit diagram of a conventional electromagnetic induction lamp circuit;
图 2是本发明的电磁感应灯电路的部分电路的框图；  2 is a block diagram of a part of a circuit of the electromagnetic induction lamp circuit of the present invention;
图 3是本发明的电磁感应灯电路的部分电路的电路图。 具体实施方式  Fig. 3 is a circuit diagram of a part of the circuit of the electromagnetic induction lamp circuit of the present invention. detailed description
下面结合附图和实施例来进一步说明本发明的技术方案。  The technical solution of the present invention is further described below with reference to the drawings and embodiments.
图 2是本发明的电磁感应灯的部分电路的框图， 如图 2所示， 本发明的 调光电路是连接于电磁感应灯电路的，该电磁感应灯电路应至少包括有源功 率因数校正器 200、 中央处理器 202、 电磁感应器 204和功率输出器 206， 在 图 2所示的实施例中， 有源功率因数校正器 200连接到功率输出器 206， 其 是为后级电路提供稳定的直流电压。 电磁感应器 204, 也连接到功率输出器 206, 还连接到电磁感应灯灯管 （图中未示出） 。 功率输出器 206用来提供 输出功率。 中央处理器 202并未直接与上述各个部件相连， 其是用于控制整 个电路的运行。 本发明的调光电路是连接在上述的电磁感应灯电路上的， 该 调光电路包括闭环调光控制信号器 208, 与有源功率因数校正器 200及中央 处理器 202相连， 其采样比较电压， 并向中央处理器 202提供有效的控制电 压信号， 在一个实施例中， 它提供的信号范围在 0V— 4V的直流电压。 灯功 率反馈补偿器 210, 与中央处理器 202相连。 阻容振荡定时器 212, 与中央 处理器 202相连， 其是用于确定中央处理器 202的最低和最高的工作频率。 灯电流采样信号器 214， 与电磁感应器 204及中央处理器 202相连， 用来采 样电磁感应器 204的电流信号，并差分输入到中央处理器 202中做有源整流。 灯电压采样信号器 216, 与电磁感应器 204及中央处理器 202相连， 采集电 磁感应器 204的电压信号并输出到中央处理器 202中。 FIG. 2 is a block diagram of some circuits of the electromagnetic induction lamp of the present invention. As shown in FIG. 2, the dimming circuit of the present invention is connected to the electromagnetic induction lamp circuit, and the electromagnetic induction lamp circuit should include at least an active power factor corrector. 200, a central processing unit 202, an electromagnetic inductor 204, and a power outputter 206. In the embodiment shown in FIG. 2, the active power factor corrector 200 is connected to the power outputter 206, which provides stability for the subsequent circuit. DC voltage. The electromagnetic sensor 204 is also connected to the power output device 206, and is also connected to the electromagnetic induction lamp tube (not shown in the figure). The power outputter 206 is used to provide output power. The central processing unit 202 is not directly connected to the above components, and is used to control the operation of the entire circuit. The dimming circuit of the present invention is connected to the electromagnetic induction lamp circuit described above. The dimming circuit includes a closed-loop dimming control signal device 208, which is connected to the active power factor corrector 200 and the central processing unit 202, and samples the comparison voltage and provides an effective control voltage signal to the central processing unit 202. In one embodiment, It provides a DC voltage ranging from 0V to 4V. The lamp power feedback compensator 210 is connected to the central processing unit 202. The resistance-capacitance oscillation timer 212 is connected to the central processing unit 202 and is used to determine the minimum and maximum operating frequencies of the central processing unit 202. The lamp current sampling signaler 214 is connected to the electromagnetic sensor 204 and the central processing unit 202, and is used for sampling the current signal of the electromagnetic sensor 204 and differentially input to the central processing unit 202 for active rectification. The lamp voltage sampling signaler 216 is connected to the electromagnetic sensor 204 and the central processing unit 202, and collects the voltage signal of the electromagnetic sensor 204 and outputs the voltage signal to the central processing unit 202.
图 3是本发明的一个实施例的部分电路， 即调光电路部分的电路图。 如 图 3所示， 该实施例中使用的中央处理器为 HY4501芯片， 该芯片是一块具 有调光功能的电子镇流器专用电路， 其调光范围在 10%— 100%之间。 在该 实施例中， 闭环调光控制信号器 208由电阻 Rl、 R2、 电位器 R3和电容 CI 組成， 电位器 R3的电阻值可调， 其与电容 C1一同构成一个 RC振荡电路， 通过调整电位器 R3的阻值来改变其振荡频率。 闭环调光控制信号器 208的 输出信号输入到 HY4501 芯片的 DIM引脚。 该实施例中， 灯功率反馈补偿 器 210由电阻 R5串联电容 C2后一同与电阻 R6并联而构成，其输出连接到 HY4051芯片的 CRECT引脚， 由灯功率反馈补偿器 210釆集的信号电压作 为负反馈信号被送入 HY4051芯片内的内部误差放大器的输入端， 以实现闭 环负反馈。 该实施例中， 阻容振荡定时器 212 包括一电阻 RT, 其连接到 HY4501芯片的 RF引脚， 和一电容 CT, 其连接到 HY4501芯片的 CF引脚 而构成， 电阻 RT和电容 CT以及 HY4501芯片共同决定整个电路工作频率 的高低。 该实施例中的灯电流采样信号器 214为一串联在灯管上的电感 LN 和一并联在灯管上的电阻 R4 , 其采样灯管的电流信号并输入到 HY4501 芯 片的 IL1和 IL2引脚。而灯电压采样信号器 216为一并联在灯管上的电阻 R7, 其采样的灯管的电压信号输入到 HY4501芯片的 VL引脚。 在图 3中， L1为 功率输出器 206。  FIG. 3 is a circuit diagram of a part of a circuit of an embodiment of the present invention, that is, a dimming circuit part. As shown in FIG. 3, the central processing unit used in this embodiment is a HY4501 chip, which is a dedicated circuit for an electronic ballast with a dimming function, and its dimming range is between 10% and 100%. In this embodiment, the closed-loop dimming control signal device 208 is composed of resistors R1, R2, potentiometer R3, and capacitor CI. The resistance value of potentiometer R3 is adjustable. It forms an RC oscillation circuit together with capacitor C1. The value of the resistor R3 changes its oscillation frequency. The output signal of the closed-loop dimming control signal device 208 is input to the DIM pin of the HY4501 chip. In this embodiment, the lamp power feedback compensator 210 is composed of a resistor R5 in series with a capacitor C2 and a resistor R6 in parallel, and its output is connected to the CRECT pin of the HY4051 chip. The negative feedback signal is sent to the input of the internal error amplifier in the HY4051 chip to achieve closed-loop negative feedback. In this embodiment, the resistance-capacitance oscillation timer 212 includes a resistor RT, which is connected to the RF pin of the HY4501 chip, and a capacitor CT, which is connected to the CF pin of the HY4501 chip. The resistor RT and the capacitor CT and HY4501 The chips together determine the operating frequency of the entire circuit. The lamp current sampling signaller 214 in this embodiment is an inductor LN connected in series on the lamp tube and a resistor R4 connected in parallel on the lamp tube, which samples the current signal of the lamp tube and inputs it to the IL1 and IL2 pins of the HY4501 chip . The lamp voltage sampling signal 216 is a resistor R7 connected in parallel to the lamp, and the voltage signal of the sampled lamp is input to the VL pin of the HY4501 chip. In FIG. 3, L1 is a power output device 206.
本发明还提供一种釆用上述的调光电路的电磁感应灯电路，其应至少包 括下列部件： 有源功率因数校正器； The present invention also provides an electromagnetic induction lamp circuit using the above-mentioned dimming circuit, which should include at least the following components: Active power factor corrector;
功率输出器， 与有源功率因数校正器相连；  A power output device connected to the active power factor corrector;
电磁感应器， 与功率输出器相连， 还连接到电磁感应灯灯管；  An electromagnetic inductor is connected to the power output device and is also connected to the electromagnetic induction lamp tube;
中央处理器，  CPU,
调光电路， 该调光电路包括，  A dimming circuit comprising:
闭环调光控制信号器， 与有源功率因数校正器及中央处理器相连； 灯功率反馈补偿器， 与中央处理器相连；  The closed-loop dimming control signaler is connected to the active power factor corrector and the central processing unit; the lamp power feedback compensator is connected to the central processing unit;
阻容振荡定时器， 与中央处理器相连；  A resistance-capacity oscillation timer connected to the central processing unit;
灯电流采样信号器， 与电磁感应器及所述中央处理器相连； 灯电压采样信号器， 与电磁感应器及所述中央处理器相连。 这些电路部件就可以采用图 2及图 3所公开的电路图来实现， 此外， 该 电磁感应灯电路还应该包括，  The lamp current sampling signal is connected to the electromagnetic inductor and the central processing unit; the lamp voltage sampling signal is connected to the electromagnetic inductor and the central processing unit. These circuit components can be implemented by using the circuit diagrams disclosed in FIG. 2 and FIG. 3. In addition, the electromagnetic induction lamp circuit should also include:
抗干扰电磁滤波器， 与输入电源相连；  Anti-interference electromagnetic filter, connected to the input power;
桥式整流电路， 与抗干扰电磁滤波器相连， 还连接到有源功率因数校正 器；  A bridge rectifier circuit connected to the anti-interference electromagnetic filter and also connected to the active power factor corrector;
保护电路， 与功率输出器和中央处理器相连；  A protection circuit connected to the power output device and the central processing unit;
启动控制电路， 与输入电源相连， 还连接到电磁感应灯。  The start-up control circuit is connected to the input power and is also connected to the electromagnetic induction lamp.
上述的抗干扰电磁滤波器、桥式整流电路、 保护电路和启动控制电路都 是采用和现有技术中相同的电路， 这对于熟悉本领域的人员来说是已知的， 因此这里就不再做详细的描述了， 对于这些部件的电路图也就不再给出了。 使用该种电路的电感应灯能在 85— 300V的宽电压范围内进行调光， 并能根 据对灯管电流及电压信号的监测来使功率保持稳定。  The above-mentioned anti-interference electromagnetic filter, bridge rectifier circuit, protection circuit and start-up control circuit all use the same circuit as in the prior art, which is known to those skilled in the art, so it will not be repeated here. After a detailed description, the circuit diagrams of these components will not be given. The electric induction lamp using this kind of circuit can adjust the light in a wide voltage range of 85-300V, and can keep the power stable according to the monitoring of the lamp current and voltage signals.
本发明提供了一种用于电磁感应灯的调光电路以及使用该调光电路的 电磁感应灯电路， 增加了对于灯管运行状况的监测并进行实时调整的功能， 进一步提高了电磁感应灯的运行效率， 延长了其使用寿命。  The invention provides a dimming circuit for an electromagnetic induction lamp and an electromagnetic induction lamp circuit using the dimming circuit. The function of monitoring and operating real-time adjustment of a lamp tube is added, and the electromagnetic induction lamp is further improved. Operating efficiency extends its service life.
上述实施例是提供给熟悉本领域内的人员来实现或使用本发明的，熟悉 本领域的人员可在不脱离本发明的发明思想的情况下，对上述实施例做出种 种修改或变化， 因而本发明的保护范围并不被上述实施例所限， 而应该是符 合权利要求书提到的创新性特征的最大范围。  The above embodiments are provided for those skilled in the art to implement or use the present invention. Those skilled in the art can make various modifications or changes to the above embodiments without departing from the inventive concept of the present invention. The protection scope of the present invention is not limited by the above-mentioned embodiments, but should be the maximum scope consistent with the innovative features mentioned in the claims.

Claims

权利要求 Rights request
1. 一种电磁感应灯的调光电路， 连接于电磁感应灯电路上， 所述电磁 感应灯电路至少包括有源功率因数校正器、 中央处理器、 电磁感应器和功率 输出器， 其特征在于， 所述调光电路包括： 1. A dimming circuit for an electromagnetic induction lamp, connected to the electromagnetic induction lamp circuit, the electromagnetic induction lamp circuit comprising at least an active power factor corrector, a central processing unit, an electromagnetic inductor, and a power output device, characterized in that: The dimming circuit includes:
闭环调光控制信号器，与所述有源功率因数校正器及所述中央处理器相 连；  A closed-loop dimming control signaller connected to the active power factor corrector and the central processing unit;
灯功率反馈补偿器， 与所述中央处理器相连；  A lamp power feedback compensator connected to the central processing unit;
阻容振荡定时器， 与所述中央处理器相连；  A resistance-capacity oscillation timer connected to the central processing unit;
灯电流采样信号器， 与所述电磁感应器及所述中央处理器相连； 灯电压采样信号器， 与所述电磁感应器及所述中央处理器相连。  A lamp current sampling annunciator is connected to the electromagnetic inductor and the central processing unit; a lamp voltage sampling annunciator is connected to the electromagnetic inductor and the central processing unit.
2. 如权利要求 1 所述的调光电路， 其特征在于， 所述中央处理器为 HY4501芯片。 2. The dimming circuit according to claim 1, wherein the central processing unit is a HY4501 chip.
3. 如权利要求 1所述的调光电路， 其特征在于， 所述闭环调光控制信 号器包括电位器和电容并联组成的振荡电路和数个串联的电阻。 3. The dimming circuit according to claim 1, wherein the closed-loop dimming control signal device comprises an oscillation circuit composed of a potentiometer and a capacitor connected in parallel, and several resistors connected in series.
4. 如权利要求 1所述的调光电路， 其特征在于， 所述灯功率反馈补偿 器由一电阻和一电容串联后一同与另一电阻并联而形成。 4. The dimming circuit according to claim 1, wherein the lamp power feedback compensator is formed by connecting a resistor and a capacitor in series together with another resistor in parallel.
5. 如权利要求 1所述的调光电路， 其特征在于， 所述阻容振荡定时器 至少包括一电容和一电阻。 5. The dimming circuit according to claim 1, wherein the resistance-capacitance oscillation timer comprises at least a capacitor and a resistor.
6. 如权利要求 1所述的调光电路， 其特征在于， 所述灯电压釆样信号 器至少包括一并联在灯管上的电阻。 6. The dimming circuit according to claim 1, wherein the lamp voltage sample signaler comprises at least a resistor connected in parallel to the lamp tube.
7. 如权利要求 1所述的调光电路， 其特征在于， 所述灯电流采样信号 器至少包括一串联在灯管上的电感和一并联在灯管上的电阻。 7. The dimming circuit according to claim 1, wherein the lamp current sampling signal The device includes at least an inductor connected in series with the lamp tube and a resistor connected in parallel with the lamp tube.
8. 一种电磁感应灯电路， 至少包括： 8. An electromagnetic induction lamp circuit, comprising at least:
有源功率因数校正器；  Active power factor corrector;
功率输出器， 与所述有源功率因数校正器相连；  A power output device connected to the active power factor corrector;
电磁感应器， 与所述功率输出器相连， 还连接到电磁感应灯灯管； 中央处理器，  An electromagnetic inductor, connected to the power output device, and also connected to an electromagnetic induction lamp tube; a central processing unit,
其特征在于， 还包括调光电路， 该调光电路包括，  It is characterized in that it further comprises a dimming circuit, which comprises:
闭环调光控制信号器，与所述有源功率因数校正器及所述中央处理 器相连；  A closed-loop dimming control signaller connected to the active power factor corrector and the central processor;
灯功率反馈补偿器， 与所述中央处理器相连；  A lamp power feedback compensator connected to the central processing unit;
阻容振荡定时器， 与所述中央处理器相连；  A resistance-capacity oscillation timer connected to the central processing unit;
灯电流采样信号器， 与所述电磁感应器及所述中央处理器相连； 灯电压采样信号器， 与所述电磁感应器及所述中央处理器相连。  A lamp current sampling annunciator is connected to the electromagnetic inductor and the central processing unit; a lamp voltage sampling annunciator is connected to the electromagnetic inductor and the central processing unit.
9. 如权利要求 8所述的电磁感应灯电路， 其特征在于， 还包括： 抗干扰电磁滤波器， 与输入电源相连； 9. The electromagnetic induction lamp circuit according to claim 8, further comprising: an anti-interference electromagnetic filter connected to the input power source;
桥式整流电路， 与所述抗干扰电磁滤波器相连， 还连接到所述有源功率 因数校正器；  A bridge rectifier circuit connected to the anti-interference electromagnetic filter and also connected to the active power factor corrector;
保护电路， 与所述功率输出器和中央处理器相连；  A protection circuit connected to the power output device and a central processing unit;
启动控制电路， 与输入电源相连， 还连接到电磁感应灯。  The start-up control circuit is connected to the input power and is also connected to the electromagnetic induction lamp.
10. 如权利要求 8或 9所述的电磁感应灯电路， 其特征在于， 所述中央处理器为 HY4051芯片； 10. The electromagnetic induction lamp circuit according to claim 8 or 9, wherein the central processing unit is a HY4051 chip;
所述闭环调光控制信号器包括电位器和电容并联组成的振荡电路和数 个串联的电阻；  The closed-loop dimming control signaller includes an oscillating circuit composed of a potentiometer and a capacitor in parallel, and several resistors connected in series;
所述灯功率反馈补偿器由一电阻和一电容串联后一同与另一电阻并联 而形成；  The lamp power feedback compensator is formed by a resistor and a capacitor connected in series together with another resistor in parallel;
所述阻容振荡定时器至少包括一电容和一电阻； 所述灯电压采样信号器至少包括一并联在灯管上的电阻； 所述灯电流采样信号器至少包括一串联在灯管上的电感和一并联在灯 管上的电阻。 The resistance-capacitance oscillation timer includes at least a capacitor and a resistor; The lamp voltage sampling annunciator includes at least a resistor connected in parallel to the lamp tube; the lamp current sampling annunciator includes at least an inductor connected in series with the lamp tube and a resistor in parallel with the lamp tube.
PCT/CN2005/000097 2004-01-21 2005-01-21 A light-regulating circuit of an electromagnetic induction lamp and an electromagnetic induction lamp circuit WO2005072025A1 (en)

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CN1440227A (en) * 2003-03-31 2003-09-03 浙江大学 Electronic ballast of light-adjustable high strength gas discharge lamp

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CN2500066Y (en) * 2001-08-09 2002-07-10 飞宏电子（上海）有限公司 Digital control light adjustor for fluorescent lamp
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