WO2012066822A1 - Dispositif d'éclairage à diode électroluminescente (del) - Google Patents

Dispositif d'éclairage à diode électroluminescente (del) Download PDF

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Publication number
WO2012066822A1
WO2012066822A1 PCT/JP2011/066410 JP2011066410W WO2012066822A1 WO 2012066822 A1 WO2012066822 A1 WO 2012066822A1 JP 2011066410 W JP2011066410 W JP 2011066410W WO 2012066822 A1 WO2012066822 A1 WO 2012066822A1
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Prior art keywords
terminal
circuit
base
voltage
determination process
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PCT/JP2011/066410
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English (en)
Japanese (ja)
Inventor
小野　恭裕
隆浩 宮島
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アイリスオーヤマ株式会社
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Priority to JP2012544128A priority Critical patent/JP5732072B2/ja
Publication of WO2012066822A1 publication Critical patent/WO2012066822A1/fr

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/165—Controlling the light source following a pre-assigned programmed sequence; Logic control [LC]
    • 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Definitions

  • the present invention relates to an LED illumination using an LED (Light Emitting Diode) as a light source.
  • LED Light Emitting Diode
  • an external ballast is always attached to a straight tube fluorescent lamp.
  • the ballast applies a high voltage for generating an electric discharge inside the fluorescent lamp at the start of lighting of the fluorescent lamp. If a high voltage is applied when a straight tube type LED illumination is mounted, there is a possibility that the LED which is the light source element and the semiconductor element of the power supply circuit are damaged and deteriorated earlier. Also, the ballast itself could generate heat.
  • the LED lighting device includes a plurality of LEDs connected in parallel or in series, and two electrodes inserted into connection terminals of a fluorescent lighting system for a magnetic or electronic lighting system.
  • a first power supply terminal and a second power supply terminal receiving an input of an AC power supply from the fluorescent lamp lighting system through the terminal; and a first power supply terminal for removing an overvoltage or overcurrent component included in the AC power supply input from the first power supply terminal 1 power supply part, 2nd power supply part which removes the overvoltage or overcurrent component contained in the AC power supply input from the second power supply terminal, and full-wave rectification of the AC voltage output from the first power supply part
  • a filter unit that smoothes the pressure and converts it to direct current, and a drive that lights the plurality of LEDs by outputting rated voltages and currents for the plurality of LEDs from a direct current power source output from the filter unit Part.
  • the LED lighting device disclosed in Japanese Patent Application Laid-Open No. 2010-157480 requires a varistor for protecting the circuit from overvoltage and a fuse for protecting from overcurrent on the first power supply terminal side and the second power supply terminal side, Furthermore, since it is necessary to provide the first rectification unit and the second rectification unit on the first power supply terminal side and the second power supply terminal side, respectively, there is a problem that the circuit becomes complicated and expensive.
  • the present invention has been made in view of the above problems, and according to some aspects of the present invention, an LED illumination that does not damage an LED when connected to a conventional fluorescent lamp fixture is provided. Can be provided.
  • the LED illumination according to the present invention is LED, Two bases each having a first terminal and a second terminal; A power supply circuit for supplying power to the LED; A switch for switching whether to supply external power to the power supply circuit via the base; A control circuit for controlling the switch; Including The control circuit includes: A first determination process for determining whether the first terminal and the second terminal are open or short in each of the caps; A second determination process for determining whether or not a voltage between the first terminal and the second terminal is equal to or lower than a reference voltage value in at least one of the caps; In the first determination process, it is determined that any of the bases is in a short state between the first terminal and the second terminal, and in the second determination process, at least one of the bases A switching process for switching the switch from an off state to an on state when it is determined that the voltage between the first terminal and the second terminal is equal to or lower than a reference voltage value; I do.
  • the switch in any of the caps, it is determined that the first terminal and the second terminal are short-circuited, and the voltage between the first terminal and the second terminal in at least one of the caps. Is determined to be less than or equal to the reference voltage value, the switch is switched from the off state to the on state, so that the switch is turned off when connected to a conventional fluorescent lamp fixture. Therefore, it is possible to provide LED lighting that does not damage the LED when connected to a conventional fluorescent lamp fixture.
  • the switch when it is determined that the gap between the first terminal and the second terminal is open in any of the caps, or between at least one of the caps between the first terminal and the second terminal.
  • the switch is switched from the on state to the off state, so that the switch is turned off when connected to a conventional fluorescent lamp fixture. Therefore, it is possible to provide LED lighting that does not damage the LED when connected to a conventional fluorescent lamp fixture.
  • This LED lighting The control circuit includes: A signal output circuit for outputting a voltage signal from the output terminal; A first resistor having one end connected to the output terminal; The first terminal of the primary winding is connected to the other end of the first resistor, the first terminal of the secondary winding is connected to the first terminal of one of the caps, and the second terminal of the secondary winding A transformer connected to the second terminal of one of the caps; A voltage detection circuit for detecting a voltage at a connection point between the first resistor and the transformer; A first determination circuit that performs the first determination process based on a voltage detected by the voltage detection circuit; May be included.
  • the first determination process can be performed in a state where the first determination circuit and the external power source are not connected in a direct current manner.
  • the control circuit includes: A photocoupler in which an anode terminal and a cathode terminal are connected via a second resistor between the first terminal and the second terminal of one of the caps; A second determination circuit that performs the second determination process based on whether the photocoupler is in an ON state; May be included.
  • the second determination process can be performed in a state where the second determination circuit and the external power source are not connected in a direct current manner.
  • This LED lighting A current limiting circuit that limits a current value supplied to the control circuit via the base to a reference current value or less may be further included.
  • the present invention if only one base is connected to the external power source and the other base contacts the human body, only a current equal to or lower than the reference current value limited by the current limiting circuit flows. Therefore, it is possible to provide LED lighting that prevents electric shock that occurs during replacement.
  • FIG. 1 is a circuit diagram for explaining an LED illumination 1 according to the present embodiment.
  • FIG. 2 is a circuit diagram illustrating a configuration example of the power supply circuit 30.
  • FIG. 3 is a circuit diagram when the LED illumination 1 is connected to a correctly wired lamp.
  • FIG. 4 is a circuit diagram when the LED illumination 1 is connected to a glow-type fluorescent lamp fixture.
  • FIG. 5 is a circuit diagram when the LED illumination 1 is connected to an inverter type fluorescent lamp fixture.
  • FIG. 6 is a circuit diagram when the LED illumination 1 is connected to a rapid start type fluorescent lamp fixture.
  • FIG. 7 is a circuit diagram for explaining a part of the configuration of the control circuit 50.
  • FIG. 1 is a circuit diagram for explaining an LED illumination 1 according to the present embodiment.
  • FIG. 2 is a circuit diagram illustrating a configuration example of the power supply circuit 30.
  • FIG. 3 is a circuit diagram when the LED illumination 1 is connected to a correctly wired lamp.
  • FIG. 4 is a circuit diagram when
  • FIG. 8 is a graph illustrating an example of an output signal of the signal output circuit 501 and a voltage input to the A / D converter 503.
  • FIG. 9 is a circuit diagram for explaining a part of the configuration of the control circuit 50.
  • FIG. 10 is a circuit diagram for explaining a part of the configuration of the control circuit 50.
  • FIG. 11 is a circuit diagram showing a state in which the base 21 of the LED lighting 1 according to this embodiment is connected to a socket and the base 22 is in contact with a human body.
  • FIG. 1 is a circuit diagram for explaining an LED illumination 1 according to the present embodiment.
  • a straight tube type LED illumination whose outer shape is the same as that of a straight tube type fluorescent lamp will be described as an example.
  • the present invention is, for example, U-shaped even if the outer shape is similar to a ring type fluorescent lamp. Even if it is the same as a fluorescent lamp, it is applicable.
  • the LED illumination 1 includes an LED 10, two bases 21 and 22 each having a first terminal and a second terminal, a power supply circuit 30 that supplies power to the LED 10, and the bases 21 and 22.
  • the power supply circuit 30 includes a switch 40 that switches whether external power is supplied or not, and a control circuit 50 that controls the switch 40.
  • the control circuit 50 includes a first terminal and a second terminal in each of the caps 21 and 22.
  • the switch 40 is changed from the off state to the on state. And a switching process for switching.
  • the LED 10 is turned on when power is supplied from the power supply circuit 30.
  • the LED illumination 1 may include a plurality of LEDs as the LED 10. In this case, a plurality of LEDs may be connected in series or in parallel, or both may be combined.
  • the base 21 has a first terminal 211 and a second terminal 212.
  • the first terminal 211 and the second terminal 212 function as terminals for supplying external power to the LED illumination 1.
  • the base 22 has a first terminal 221 and a second terminal 222.
  • the first terminal 221 and the second terminal 222 function as terminals for supplying external power to the LED illumination 1.
  • the power supply circuit 30 supplies power to the LED 10.
  • the first terminal of the power supply circuit 30 is connected to the first terminal 211 of the base 21 via the switch 40, and the second terminal 32 of the power supply circuit 30 is the first terminal 221 of the base 22. It is connected to the.
  • the third terminal 33 of the power supply circuit 30 is connected to the anode side (high potential side) of the LED 10, and the fourth terminal 34 of the power supply circuit 30 is connected to the cathode side (low potential side) of the LED 10.
  • AC voltage is supplied to the power supply circuit 30 via the caps 21 and 22.
  • the power supply circuit 30 converts AC voltage into DC voltage and supplies power to the LED 10.
  • FIG. 2 is a circuit diagram illustrating a configuration example of the power supply circuit 30.
  • the power supply circuit 30 includes a full-wave rectifier bridge circuit for rectifying the alternating current supplied from the first terminal 31 and the second terminal 32 into a direct current, and the like. 301, a noise filter 302 for removing harmonics from the output of the rectifier 301 and outputting, a known power factor improvement circuit 303 for improving the power factor, a known switching circuit and a PWM (PulsePWidth Modulation) circuit
  • the LED driving circuit 304 for causing the LED 10 to emit light by outputting PWM between the third terminal 33 and the fourth terminal 34, a protective fuse, a surge countermeasure varistor, and the like are configured.
  • a protection circuit 305 provided between the terminal 32 and the terminal 32 is included.
  • the switch 40 switches whether to supply external power to the power supply circuit 30 via the caps 21 and 22.
  • the switch 40 is provided between the first terminal 211 of the base 21 and the first terminal 31 of the power supply circuit 30.
  • various known configurations such as a transistor, a thyristor, a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor), an IGBT (Insulated Gate Bipolar Transistor), and a relay circuit can be employed.
  • the switch 40 is not controlled by the control circuit 50 (for example, when power necessary for the operation of the control circuit 50 is not supplied to the control circuit 50), the switch 40 is off.
  • the control circuit 50 controls the switch 40.
  • the control circuit 50 may be configured by using a dedicated circuit.
  • a microprocessor Micro-Processing Unit
  • a storage device such as a ROM (Read Only Memory) or a RAM (Random Access Memory).
  • the computer may function as a computer by executing a stored control program, and may be configured to perform control described later.
  • the first terminal 51 of the control circuit 50 and the first terminal 211 of the base 21 are connected, the second terminal 52 of the control circuit 50 and the second terminal 212 of the base 21 are connected, The third terminal 53 of the control circuit 50 and the first terminal 221 of the base 22 are connected, and the fourth terminal 54 of the control circuit 50 and the second terminal 222 of the base 22 are connected.
  • a switching signal that is a signal for switching the switch 40 is output from the fifth terminal 55 of the control circuit 50.
  • the control circuit 50 performs a first determination process for determining whether the first terminal and the second terminal are in an open state or a short state in each of the caps 21 and 22.
  • FIG. 3 is a circuit diagram when the LED illumination 1 is connected to a correctly wired lamp.
  • FIG. 4 is a circuit diagram when the LED illumination 1 is connected to a glow-type fluorescent lamp fixture.
  • FIG. 5 is a circuit diagram when the LED illumination 1 is connected to an inverter type fluorescent lamp fixture.
  • FIG. 6 is a circuit diagram when the LED illumination 1 is connected to a rapid start type fluorescent lamp fixture.
  • the correctly wired lamp has a first terminal 711 and a second terminal 712 connected to the socket 71 to which the base 21 is connected, and a socket 72 to which the base 22 is connected.
  • the first terminal 721 and the second terminal 722 are connected. Therefore, when the base 21 is connected to the socket 71, the first terminal 211 and the second terminal 212 of the base 21 are short-circuited. Similarly, when the base 22 is connected to the socket 72, the first terminal 221 and the second terminal 222 of the base 22 are short-circuited.
  • the first terminal 711 of the socket 71 to which the base 21 is connected and the first terminal 721 of the socket 72 to which the base 22 is connected form the glow lamp 91.
  • the second terminal 712 of the socket 71 to which the base 21 is connected is connected to the second terminal 722 of the socket 72 to which the base 22 is connected via the AC power supply 80 and the ballast 92. Therefore, when the base 21 is connected to the socket 71, the first terminal 211 and the second terminal 212 of the base 21 are open. Similarly, when the base 22 is connected to the socket 72, the first terminal 221 and the second terminal 222 of the base 22 are open.
  • the first terminal 711 of the socket 71 to which the base 21 is connected and the first terminal 721 of the socket 72 to which the base 22 is connected are connected via a capacitor 93.
  • the second terminal 712 of the socket 71 to which the base 21 is connected and the second terminal 722 of the socket 72 to which the base 22 is connected are connected via an AC power supply 80 and a ballast 94. Therefore, when the base 21 is connected to the socket 71, the first terminal 211 and the second terminal 212 of the base 21 are open. Similarly, when the base 22 is connected to the socket 72, the first terminal 221 and the second terminal 222 of the base 22 are open.
  • the first terminal 711 and the second terminal 712 form the winding of the transformer that constitutes the ballast 95.
  • the first terminal 721 and the second terminal 722 are connected via a transformer winding constituting the ballast 95. Therefore, when the base 21 is connected to the socket 71, the first terminal 211 and the second terminal 212 of the base 21 are short-circuited. Similarly, when the base 22 is connected to the socket 72, the first terminal 221 and the second terminal 222 of the base 22 are short-circuited.
  • the control circuit 50 determines whether the first terminal 211 and the second terminal 212 of each base 21 and the first terminal 221 and the second terminal 222 of the base 22 are in an open state or a short state.
  • the first determination process it can be determined that the LED illumination 1 is connected to a correctly wired lamp or rapid start type fluorescent lamp fixture.
  • the lamp to which the LED illumination 1 is connected is not a glow-type fluorescent lamp fixture or an inverter-type fluorescent lamp fixture.
  • the control circuit 50 performs a second determination process for determining whether or not the voltage between the first terminal and the second terminal is at or below the reference voltage value in at least one of the caps 21 and 22.
  • a correctly wired lamp and a rapid start type fluorescent lamp apparatus that are determined to be in a short state in the first determination process will be described.
  • the correctly wired lamp has a first terminal 711 and a second terminal 712 directly connected in the socket 71 to which the base 21 is connected, and a socket 72 to which the base 22 is connected.
  • the first terminal 721 and the second terminal 722 are directly connected. Therefore, when the base 21 is connected to the socket 71, the resistance between the first terminal 211 and the second terminal 212 of the base 21 is relatively low. Similarly, when the base 22 is connected to the socket 72, the resistance between the first terminal 221 and the second terminal 222 of the base 22 is relatively low.
  • the voltage between the first terminal 211 and the second terminal 212 of the base 21 or the voltage between the first terminal 221 and the second terminal 222 of the base 22 is equal to or lower than the reference voltage value Vref.
  • the reference voltage value Vref is set.
  • the first terminal 711 and the second terminal 712 form the winding of the transformer that constitutes the ballast 95.
  • the first terminal 721 and the second terminal 722 are connected via a transformer winding constituting the ballast 95. Therefore, when the base 21 is connected to the socket 71, the first terminal 211 and the second terminal 212 of the base 21 are relatively relative to each other through the transformer winding constituting the ballast 95. High resistance.
  • the relative distance between the first terminal 221 and the second terminal 222 of the base 22 is through the winding of the transformer constituting the ballast 95.
  • the voltage between the first terminal 211 and the second terminal 212 of the base 21 or the voltage between the first terminal 221 and the second terminal 222 of the base 22 exceeds the reference voltage value Vref. Is set to the reference voltage value Vref.
  • the control circuit 50 performs the second determination process for determining whether or not the voltage between the first terminal and the second terminal in at least one of the caps 21 and 22 is equal to or lower than the reference voltage value Vref. It can be determined whether the lamp to which the illumination 1 is connected is a correctly wired lamp or a rapid start type fluorescent lamp fixture. That is, if the voltage between the first terminal and the second terminal in at least one of the caps 21 and 22 is equal to or lower than the reference voltage value Vref, the lamp to which the LED illumination 1 is connected is a rapid start type fluorescent lamp fixture. It can be determined that the lamp is correctly wired.
  • the control circuit 50 determines that both the bases 21 and 22 are in a short state between the first terminal and the second terminal, and in the second determination process, the control circuit 21 and the base 21 When at least one of the terminals 22 determines that the voltage between the first terminal and the second terminal is equal to or lower than the reference voltage value, a switching process for switching the switch 40 from the off state to the on state is performed.
  • the lamp to which the LED illumination 1 is connected is correctly wired. Or a rapid-start fluorescent lamp fixture.
  • the LED illumination 1 is connected in the second determination process.
  • the lit lamp is a correctly wired lamp. That is, when it is determined that the LED illumination 1 is connected to a correctly wired lamp, the control circuit 50 performs a switching process for switching the switch 40 from the off state to the on state. Therefore, when the LED illumination 1 is connected to a conventional fluorescent lamp fixture, the switch 40 remains off. Therefore, it is possible to provide LED lighting that does not damage the LED when connected to a conventional fluorescent lamp fixture.
  • the control circuit 50 determines in the first determination process that the first terminal and the second terminal are open in any of the caps 21 and 22, or the second determination process. When it is determined that at least one of the caps 21 and 22 the voltage between the first terminal and the second terminal exceeds the reference voltage value Vref, the switch 40 is switched from the on state to the off state. Also good. That is, when it is determined that the LED illumination 1 is not connected to a correctly wired lamp, the control circuit 50 performs a switching process for switching the switch 40 from the off state to the on state.
  • the control circuit 50 includes a signal output circuit 501 that outputs a voltage signal from an output terminal 5001, a first resistor 5110 having one end connected to the output terminal 5001, and a first terminal 5211 of the primary winding of the first resistor 5110.
  • the transformer 521 is connected to the other end, the first terminal 5213 of the secondary winding is connected to the first terminal 211 of the base 21, and the second terminal 5214 of the secondary winding is connected to the second terminal 212 of the base 21.
  • a voltage detection circuit 505 that detects a voltage at a connection point between the first resistor 5110 and the transformer 521, and a first determination circuit 507 that performs a first determination process based on the voltage detected by the voltage detection circuit 505. May be included.
  • the control circuit 50 includes a signal output circuit 502 that outputs a voltage signal from the output terminal 5002, a first resistor 5120 that has one end connected to the output terminal 5002, and a first terminal 5221 of the primary winding that is a first resistor.
  • the second terminal of the secondary winding is connected to the first terminal 221 of the base 22, and the second terminal 5224 of the secondary winding is connected to the second terminal 222 of the base 22.
  • FIG. 7 is a circuit diagram for explaining a part of the configuration of the control circuit 50.
  • the circuit on the base 21 side and the circuit on the base 22 side of the control circuit 50 are configured in the same manner. Therefore, the circuit on the base 21 side will be mainly described.
  • the reference numerals of the circuits are shown in parentheses, and detailed description is omitted.
  • the control circuit 50 includes a microcomputer 500.
  • the microcomputer 500 is a microprocessor, and includes parts that function as a signal output circuit 501 (502), an A / D converter 503 (504), a voltage detection circuit 505 (506), and a first determination circuit 507 (508). Yes.
  • the signal output circuit 501 (502) outputs a voltage signal from the output terminal 5001 (5002).
  • the voltage signal may be, for example, a rectangular pulse signal or a sine wave AC signal.
  • the first resistor 5110 has one end connected to the output terminal 5001 (5002) and the other end connected to the first terminal 5211 (5221) of the primary winding of the transformer 521 (522). It is connected to 500 input terminals 5003 (5004).
  • the second terminal of the primary winding of the transformer 521 (522) is connected to the ground potential GND.
  • the first terminal 5213 (5223) of the secondary winding of the transformer 521 (522) is connected to the first terminal 211 (221) of the base 21 (22), and the second terminal 5214 (5224) of the secondary winding is a capacitor. It is connected to the second terminal 212 (222) of the base 21 (22) via 531 (532).
  • FIG. 8 is a graph showing an example of the output signal of the signal output circuit 501 and the voltage input to the A / D converter 503.
  • the horizontal axis represents time, and the vertical axis represents voltage.
  • 8A is an output signal of the signal output circuit 501
  • B of FIG. 8 is input to the A / D converter 503 when the first terminal 211 and the second terminal 212 of the base 21 are open.
  • 8C represents the voltage input to the A / D converter 503 when the first terminal 211 and the second terminal 212 of the base 21 are short-circuited.
  • the signal output circuit 501 outputs a rectangular pulse signal having a relatively high voltage in the period from time t0 to time t1.
  • the length of the period from time t0 to time t1 is preferably shorter as long as the accuracy of the first determination process can be ensured. In the present embodiment, the length of the period from time t0 to time t1 is set to 20 milliseconds or less.
  • the resistance between the first terminal 211 and the second terminal 212 of the base 21 is relatively high.
  • a relatively high voltage is input to the A / D converter 503.
  • the resistance between the first terminal 211 and the second terminal 212 of the base 21 is relatively low.
  • a relatively low voltage is input to the A / D converter 503. Therefore, by appropriately setting the threshold voltage Vth, it can be determined whether the first terminal 211 and the second terminal 212 of the base 21 are in an open state or a short state. Similarly, it can be determined whether the first terminal 221 and the second terminal 222 of the base 22 are in an open state or a short state.
  • the voltage detection circuit 505 includes a first resistor 5110 (5120) and a transformer 521 (522) via an input terminal 5003 (5004) and an A / D converter 503 (504). The voltage at the connection point of is detected.
  • the first determination circuit 507 (508) performs a first determination process based on the voltage detected by the voltage detection circuit 505 (506).
  • the first determination process can be performed in a state where the first determination circuits 507 and 508 (the microcomputer 500) and the external power supply are not connected in a direct current manner. .
  • At least one of the first terminal 5213 (5223) and the second terminal 5214 (5224) of the secondary winding of the transformer 521 (522) is connected to the first terminal 211 (221) or the second terminal of the base 21 (22) via a capacitor. It may be connected to the two terminals 212 (222).
  • the second terminal 5214 (5224) of the secondary winding of the transformer 521 (522) is connected to the first terminal 211 (221) of the base 21 (22) via the capacitor 531 (532). ) Or the second terminal 212 (222).
  • FIG. 9 is a circuit diagram for explaining a part of the configuration of the control circuit 50.
  • the control circuit 50 includes a second terminal between the first terminal 211 and the second terminal 212 of the base (the base 21 or the base 22, which will be described below).
  • a photocoupler 540 connected via a resistor 550 and a second determination circuit 509 that performs a second determination process based on whether the photocoupler 540 is in an on state may be included.
  • the control circuit 50 includes a microcomputer 500.
  • the microcomputer 500 is a microprocessor and has portions that function as an A / D converter 509, a voltage detection circuit 510, and a second determination circuit 511.
  • the emitter terminal of the photocoupler 540 is connected to the ground potential GND.
  • the collector terminal of the photocoupler 540 is connected to the power supply potential VDD via the third resistor 560 and is also connected to the input terminal 5005 of the microcomputer 500.
  • the voltage detection circuit 510 detects the voltage at the connection point between the third resistor 560 and the collector terminal of the photocoupler 540 via the input terminal 5005 and the A / D converter 509.
  • the second determination circuit 511 determines whether or not the photocoupler 540 is on based on the voltage detected by the voltage detection circuit 510. Based on whether or not the photocoupler 540 is on, the second determination circuit performs a second determination process.
  • the second determination process can be performed in a state where the second determination circuit 511 (the microcomputer 500) and the external power source are not connected in a direct current manner.
  • FIG. 10 is a circuit diagram for explaining a part of the configuration of the control circuit 50.
  • the control circuit 50 includes a microcomputer 500.
  • the microcomputer 500 is a microprocessor and has portions that function as first determination circuits 507 and 508, a second determination circuit 511, and a switching circuit 512.
  • the switching circuit performs switching processing. That is, a switching signal that is a signal for switching the switch 40 based on the results of the first determination processing of the first determination circuits 507 and 508 and the result of the second determination processing of the second determination circuit 511 is output to the output terminal. Output to the switch 40 via 5006 (may be the same terminal as the fifth terminal 55 of the control circuit 50). As a result, the control circuit 50 can control the switch 40.
  • the LED illumination 1 may further include a current limiting circuit 60 that limits the current value supplied to the control circuit 50 via the caps 21 and 22 to a reference current value or less.
  • a current limiting circuit 60 that limits the current value supplied to the control circuit 50 via the caps 21 and 22 to a reference current value or less.
  • the first terminal 61 is connected to the first terminal 211 of the base 21, and the second terminal 62 is connected to the first terminal 221 of the base 22.
  • the current limiting circuit 60 supplies power from the third terminal 63 to the control circuit 50 with a current value equal to or lower than the reference current value based on the power supplied from the first terminal 61 and the second terminal 62.
  • the reference current value is set to a current value that is not regarded as an electric shock. For example, in order to satisfy the standards of the Japanese Electrical Appliance and Material Safety Law, the reference current value is set to 1 mA or less.
  • FIG. 11 is a circuit diagram showing a state in which the base 21 of the LED lighting 1 according to this embodiment is connected to a socket and the base 22 is in contact with a human body.
  • only one base for example, base 21
  • the external power source AC power supply 80
  • the other base for example, base 22
  • the switch 40 is in an OFF state, so that only a current equal to or less than the reference current value limited by the current limiting circuit 60 flows. Therefore, it is possible to provide LED lighting that prevents electric shock that occurs during replacement.
  • the present invention includes substantially the same configuration (for example, a configuration having the same function, method and result, or a configuration having the same purpose and effect) as the configuration described in the embodiment.
  • the invention includes a configuration in which a non-essential part of the configuration described in the embodiment is replaced.
  • the present invention includes a configuration that exhibits the same operational effects as the configuration described in the embodiment or a configuration that can achieve the same object.
  • the invention includes a configuration in which a known technique is added to the configuration described in the embodiment.

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  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

L'invention concerne un circuit de commande (50) permettant de mettre en œuvre un premier processus de détermination qui détermine l'existence d'un état ouvert ou d'un état de court-circuit entre une première borne et une seconde borne dans chaque base (21, 22) ; un second processus de détermination qui détermine si la tension entre la première borne et la seconde borne d'au moins l'une des bases (21, 22) est inférieure ou égale une valeur de tension de base ; et un processus de commutation qui permet de faire passer un commutateur (40) d'un état d'arrêt à un état de marche lorsque, dans le premier processus de détermination, on a déterminé l'existence d'un état de court-circuit entre la première et la seconde borne de toutes les bases (21, 22) et, dans le second processus de détermination, on a déterminé que la tension entre la première et la seconde borne de toutes les bases (21, 22) est inférieure ou égale une valeur de tension de base.
PCT/JP2011/066410 2010-11-17 2011-07-20 Dispositif d'éclairage à diode électroluminescente (del) WO2012066822A1 (fr)

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JP2010256803 2010-11-17
JP2011-030321 2011-02-16
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CN106251729A (zh) * 2016-08-23 2016-12-21 山东交通学院 一种列车进站信号机点灯电路模拟系统
JP2017004611A (ja) * 2015-06-04 2017-01-05 株式会社リコー 照明灯、照明装置、点灯制御回路、および照明灯の駆動方法
KR101796445B1 (ko) * 2015-03-17 2017-11-10 주식회사 소프트커널 형광등 호환형 엘이디 조명장치와 이를 위한 감전보호장치
EP3364724A1 (fr) * 2017-02-17 2018-08-22 Ledvance GmbH Tube d'éclairage à del de restauration universelle et système d'éclairage
US10890300B2 (en) 2015-03-10 2021-01-12 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED tube lamp
US11441742B2 (en) 2015-12-09 2022-09-13 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED tube lamp
US11499682B2 (en) 2014-09-28 2022-11-15 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED tube lamp and a power supply module thereof
US11519567B2 (en) 2014-09-28 2022-12-06 Jiaxing Super Lighting Electric Appliance Co., Ltd LED tube lamp
US11543086B2 (en) 2015-03-10 2023-01-03 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED tube lamp
US11686457B2 (en) 2014-09-28 2023-06-27 Jiaxing Super Lighting Electric Appliance Co., Ltd LED tube lamp
US11754232B2 (en) 2015-03-10 2023-09-12 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED lamp and power source module thereof related applications

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Publication number Priority date Publication date Assignee Title
CN109819543A (zh) * 2017-11-21 2019-05-28 通用电气照明解决方案有限公司 Led照明组件及其驱动电路
JP7161206B2 (ja) * 2019-05-27 2022-10-26 株式会社エム・システム技研 照明装置、及び、照明機器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009123506A (ja) * 2007-11-14 2009-06-04 Panasonic Electric Works Co Ltd 照明装置およびそれを用いた照明器具
JP2010140827A (ja) * 2008-12-12 2010-06-24 Panasonic Electric Works Co Ltd 点灯装置及びそれを用いた照明器具

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4994101B2 (ja) * 2007-05-01 2012-08-08 シャープ株式会社 Ｌｅｄ照明灯及び該ｌｅｄ照明灯を用いた灯器具
TWI425869B (zh) * 2008-12-31 2014-02-01 Chi Mei Lighting Tech Corp 照明裝置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009123506A (ja) * 2007-11-14 2009-06-04 Panasonic Electric Works Co Ltd 照明装置およびそれを用いた照明器具
JP2010140827A (ja) * 2008-12-12 2010-06-24 Panasonic Electric Works Co Ltd 点灯装置及びそれを用いた照明器具

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US11499682B2 (en) 2014-09-28 2022-11-15 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED tube lamp and a power supply module thereof
US11686457B2 (en) 2014-09-28 2023-06-27 Jiaxing Super Lighting Electric Appliance Co., Ltd LED tube lamp
US11519567B2 (en) 2014-09-28 2022-12-06 Jiaxing Super Lighting Electric Appliance Co., Ltd LED tube lamp
US11226073B2 (en) 2015-03-10 2022-01-18 Jiaxing Super Lighting Electric Appliance Co., Ltd. Led tube lamp
US10890300B2 (en) 2015-03-10 2021-01-12 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED tube lamp
US11543086B2 (en) 2015-03-10 2023-01-03 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED tube lamp
US11698170B2 (en) 2015-03-10 2023-07-11 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED tube lamp
US11754232B2 (en) 2015-03-10 2023-09-12 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED lamp and power source module thereof related applications
KR101796445B1 (ko) * 2015-03-17 2017-11-10 주식회사 소프트커널 형광등 호환형 엘이디 조명장치와 이를 위한 감전보호장치
JP2017004611A (ja) * 2015-06-04 2017-01-05 株式会社リコー 照明灯、照明装置、点灯制御回路、および照明灯の駆動方法
US11441742B2 (en) 2015-12-09 2022-09-13 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED tube lamp
CN106251729A (zh) * 2016-08-23 2016-12-21 山东交通学院 一种列车进站信号机点灯电路模拟系统
CN108463021A (zh) * 2017-02-17 2018-08-28 朗德万斯公司 通用改进型led灯管和照明系统
EP3364724A1 (fr) * 2017-02-17 2018-08-22 Ledvance GmbH Tube d'éclairage à del de restauration universelle et système d'éclairage

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JP2015146327A (ja) 2015-08-13
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