JP2010157480A - Led lighting device - Google Patents
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本発明は、従来の磁気式または電子式点灯方式の蛍光灯用照明システムに関係なく、その蛍光灯接続端子に直接連結して使用することができるＬＥＤ照明装置に関するものである。 The present invention relates to an LED lighting apparatus that can be used by directly connecting to a fluorescent lamp connection terminal regardless of a conventional magnetic or electronic lighting type fluorescent lamp illumination system.
最近フィラメント電球や蛍光灯などの代わりにＬＥＤ（ＬＥＤ：Ｌｉｇｈｔ−Ｅｍｉｔｔｉｎｇ Ｄｉｏｄｅ）が新しい照明器具に使用されることが増加して脚光を浴びている。 Recently, the use of LEDs (Light-Emitting Diodes) for new lighting fixtures instead of filament bulbs and fluorescent lamps has been increasing.
ＬＥＤは、電流が印加されると発光して光を放出する発光ダイオードである。ＬＥＤは、低電圧で駆動することができ、他の照明装置に比べて長い寿命と低い消費電力、早い応答速度及び強い耐衝撃性を有していて、小型軽量化が可能であるという長所がある。ＬＥＤ照明器具は、常用交流電源をＬＥＤ動作のための定格直流電源に変換する駆動回路とともに使用される。 An LED is a light emitting diode that emits light and emits light when a current is applied. The LED can be driven at a low voltage, has a longer life, lower power consumption, faster response speed and stronger impact resistance than other lighting devices, and is advantageous in that it can be reduced in size and weight. is there. LED lighting fixtures are used with drive circuits that convert regular AC power into rated DC power for LED operation.
一方、従来の蛍光灯は、灯内部に高電圧による電気放電を起こし、それによって発生した紫外線がランプ内面に塗布された蛍光物質と反応して可視光線の光を出す装置である。 On the other hand, a conventional fluorescent lamp is an apparatus that generates visible light by reacting with the fluorescent substance applied to the inner surface of the lamp by causing electric discharge due to a high voltage inside the lamp.
蛍光灯の点灯方式には、別途のスターター（Ｇｌｏｗ ＳｔａｒｔｅｒまたはＲａｐｉｄ Ｓｔａｒｔｅｒ）と磁気式安定器を使用する磁気式点灯方式と、電子式安定器を使用する電子式点灯方式がある。図１は、磁気式点灯方式の蛍光灯用照明システムを示した図で、図２は電子式点灯方式の蛍光灯用照明システムを示した図である。 The fluorescent lamp lighting system includes a magnetic lighting system using a separate starter (Glow Starter or Rapid Starter) and a magnetic ballast, and an electronic lighting system using an electronic ballast. FIG. 1 is a diagram showing an illumination system for fluorescent lamps using a magnetic lighting system, and FIG. 2 is a diagram showing an illumination system for fluorescent lamps using an electronic lighting system.
図１の磁気式蛍光灯用照明システム１００の場合、交流電源は磁気式安定器１０１、蛍光灯１０の一端及びスターター１０３を経て蛍光灯１０の他端に連結される閉回路を形成して、スターター１０３の動作によって蛍光灯１０が点灯する。図２の電子式点灯方式蛍光灯用照明システム２００の場合、交流電源は電子式安定器２０１から蛍光灯１０の両端に直接に出力されて動作する。 In the case of the illumination system 100 for a magnetic fluorescent lamp of FIG. 1, the AC power supply forms a closed circuit connected to the other end of the fluorescent lamp 10 through the magnetic ballast 101, one end of the fluorescent lamp 10, and the starter 103, The fluorescent lamp 10 is turned on by the operation of the starter 103. In the case of the electronic lighting fluorescent lamp illumination system 200 of FIG. 2, the AC power supply is directly output from the electronic ballast 201 to both ends of the fluorescent lamp 10 to operate.
安定器１０１、２０１は、基本的に常用６０Ｈｚ交流電源を２０ｋＨｚ〜３０ｋＨｚの高周波に変換してランプに提供してランプを点灯させる。 The ballasts 101 and 201 basically convert a normal 60 Hz AC power source to a high frequency of 20 kHz to 30 kHz and provide it to the lamp to light the lamp.
このような、蛍光灯は、電力消耗がフィラメント電球に比べて低いが、寿命が短くてしばしば交換しなければならないという不便さがあるので、やはり、ＬＥＤなどに代替する必要性がでてくる。 Such a fluorescent lamp has lower power consumption than a filament bulb, but has a short life and is often inconvenient to be replaced. Therefore, it is necessary to replace it with an LED.
但し、ＬＥＤは低い直流電源によって動作し、蛍光灯点灯とは異なって点灯するので、一般使用者がＬＥＤ照明器具を使用するためには、既存の蛍光灯照明装置（例えば、安定器またはスターター）をすべて除去しなければならないという不便さがあった。反対に、万一、安定器などを除去しないまま、図１及び図２の蛍光灯用照明システム１００、２００の蛍光灯接続端子にＬＥＤ駆動回路を直結すると、ＬＥＤ駆動回路が安定器などの高い周波数電圧を正しく処理することができずに、ＬＥＤが誤動作したり破壊されるなどの問題を引き起こす。 However, since the LED operates with a low DC power source and is lit differently from the lighting of the fluorescent lamp, an existing fluorescent lamp lighting device (for example, a ballast or a starter) is necessary for a general user to use the LED lighting fixture. There was the inconvenience that all had to be removed. On the other hand, if the LED driving circuit is directly connected to the fluorescent lamp connection terminals of the fluorescent lamp illumination systems 100 and 200 in FIGS. 1 and 2 without removing the ballast, the LED driving circuit is expensive such as a ballast. The frequency voltage cannot be processed correctly, causing problems such as malfunction or destruction of the LED.
特になし。 nothing special.
本発明の目的は、従来の磁気式または電子式点灯方式の蛍光灯用照明システムに関係なく、その蛍光灯接続端子に直接連結して使用することができる、ＬＥＤ照明装置を提供することにある。 An object of the present invention is to provide an LED lighting device that can be used by directly connecting to a fluorescent lamp connection terminal regardless of a conventional lighting system for a fluorescent lamp of a magnetic type or an electronic lighting type. .
前記の目的を達成するために、本発明によるＬＥＤ照明装置は、並列または直列で連結された複数個のＬＥＤ、第１電源端子、第２電源端子、第１電源部、第２電源部、第１整流部、第２整流部、フィルター部及び駆動部を含む。 To achieve the above object, an LED lighting device according to the present invention includes a plurality of LEDs connected in parallel or in series, a first power supply terminal, a second power supply terminal, a first power supply unit, a second power supply unit, 1 rectification part, 2nd rectification part, filter part, and drive part are included.
前記第１電源端子と第２電源端子は、磁気式または電子式点灯方式の蛍光灯用照明システムの接続端子に挿入される２個の電極をそれぞれ具備し、前記接続端子を通じて前記蛍光灯用照明システムから交流電源の入力を受ける。 The first power supply terminal and the second power supply terminal each include two electrodes that are inserted into connection terminals of a magnetic or electronic lighting fluorescent lamp illumination system, and the fluorescent lamp illumination is connected through the connection terminals. Receive AC power input from the system.
前記第１電源部は、前記第１電源端子から入力される交流電源に含まれた過電圧または過電流成分を除去して、前記第２電源部は前記第２電源端子から入力される交流電源に含まれた過電圧または過電流成分を除去する。 The first power supply unit removes an overvoltage or overcurrent component included in the AC power supply input from the first power supply terminal, and the second power supply unit converts the AC power supply input from the second power supply terminal. Remove the included overvoltage or overcurrent components.
前記第１整流部は、前記第１電源部から出力される交流電圧を全波整流して、前記第２整流部は前記第２電源部から出力される交流電圧を全波整流する。 The first rectification unit performs full-wave rectification on the AC voltage output from the first power supply unit, and the second rectification unit performs full-wave rectification on the AC voltage output from the second power supply unit.
前記フィルター部は、前記第１整流部及び第２整流部の出力段と並列に連結されて、前記第１整流部及び第２整流部で全波整流された電圧を平滑して直流に変換して、前記駆動部に提供し、前記駆動部は前記フィルター部から出力される直流電源から前記複数個のＬＥＤのための正格の電圧及び電流を出力して、前記複数個のＬＥＤを点灯する。 The filter unit is connected in parallel with the output stages of the first rectification unit and the second rectification unit, and smoothes and converts the voltage rectified by the first rectification unit and the second rectification unit into direct current. The driving unit outputs a rated voltage and current for the plurality of LEDs from a direct current power source output from the filter unit, and turns on the plurality of LEDs.
ここで、前記第１整流部及び第２整流部は、それぞれブリッジダイオードで具現され、前記第１電源部に対する前記第１整流部のブリッジダイオードの構成は、前記第１電源部に対する前記第１整流部のブリッジダイオードの構成と同一な形態で、前記フィルター部に並列連結することで、前記磁気式点灯方式の蛍光灯用照明システムに連結される場合にも前記複数個のＬＥＤに電源が供給されるようにすることが好ましい。 Here, the first rectification unit and the second rectification unit are each implemented by a bridge diode, and the configuration of the bridge diode of the first rectification unit with respect to the first power supply unit is the first rectification with respect to the first power supply unit. By connecting in parallel to the filter unit in the same form as the configuration of the bridge diode of the unit, power is supplied to the plurality of LEDs even when connected to the magnetic lighting system for fluorescent lamps. It is preferable to do so.
また、実施例によって、本発明のＬＥＤ照明装置の前記第１電源部及び第２電源部には、前記第１電源端子と第２電源端子を通じて入力される交流電源の電圧を降圧するためのトランスフォーマーをそれぞれさらに含むことができる。 Further, according to an embodiment, the first power supply unit and the second power supply unit of the LED lighting apparatus according to the present invention are configured to transform a voltage of an AC power input through the first power supply terminal and the second power supply terminal. Each can be further included.
本発明によるＬＥＤ照明装置は、蛍光灯用照明システムを除去せずに、蛍光灯用照明装置の蛍光灯接続端子に直接連結して使用することができ、使用者にとって非常に便利である。 The LED illumination device according to the present invention can be used by directly connecting to the fluorescent lamp connection terminal of the fluorescent lamp illumination device without removing the fluorescent lamp illumination system, which is very convenient for the user.
本発明のＬＥＤ照明装置は、電子式照明装置だけでなく、スターター（Ｓｔａｒｔｅｒ）によって回路か開き得る磁気式点灯方式の蛍光灯用照明システムでも、他の操作なしに動作して、使用者が蛍光灯用照明システムの点灯方式を区分して適用する必要がない。 The LED lighting device of the present invention operates not only in an electronic lighting device but also in a magnetic lighting type lighting system that can open a circuit by a starter (Starter) without any other operation. There is no need to apply the lighting system of the lighting system separately.
本発明のＬＥＤ照明装置は、蛍光灯用照明システムの安定器などが提供する高周波の交流電源を効果的に処理して、ＬＥＤ用直流電源に変換することで、安定器出力電圧によるＬＥＤの誤動作及び破損などを防止することができる。 The LED lighting device of the present invention effectively processes a high-frequency AC power source provided by a ballast of a fluorescent lamp lighting system and converts it into a LED DC power source, thereby causing a malfunction of the LED due to the ballast output voltage. And damage can be prevented.
以下、図面を参照して本発明をさらに詳しく説明する。 Hereinafter, the present invention will be described in more detail with reference to the drawings.
図３は、本発明のＬＥＤ照明装置が使用される蛍光灯用照明システムを示した図であり、図４は、本発明の一実施例によるＬＥＤ照明装置の回路図である。図３を参照すると、本発明のＬＥＤ照明装置３００は、従来の蛍光灯用照明システムに連結して使用される。ここでの蛍光灯用照明システムは、磁気式安定器とスターター（Ｇｌｏｗ ＳｔａｒｔｅｒまたはＲａｐｉｄ Ｓｔａｒｔｅｒ）を使用した磁気式点灯方式及び電子式安定器を使用する電子式点灯方式のすべてが該当する。図３の例は、電子式安定器２０１を使用した図２の蛍光灯用照明システム２００にＬＥＤ照明装置３００を連結した例であり、以下では図３の例を中心に説明する。 FIG. 3 is a view showing an illumination system for a fluorescent lamp in which the LED illumination device of the present invention is used, and FIG. 4 is a circuit diagram of the LED illumination device according to an embodiment of the present invention. Referring to FIG. 3, the LED lighting device 300 of the present invention is used in connection with a conventional lighting system for fluorescent lamps. The lighting system for a fluorescent lamp here corresponds to all of a magnetic lighting system using a magnetic ballast and a starter (Glow Starter or Rapid Starter) and an electronic lighting system using an electronic ballast. The example of FIG. 3 is an example in which the LED illumination device 300 is connected to the fluorescent lamp illumination system 200 of FIG. 2 using the electronic ballast 201. Hereinafter, the example of FIG. 3 will be mainly described.
したがって、本発明のＬＥＤ照明装置３００は、蛍光灯用照明システム２００の２個の蛍光灯接続端子２０３に接続するための第１電源端子３１１及び第２電源端子３１３を具備する。第１電源端子３１１及び第２電源端子３１３は、蛍光灯接続端子２０３に接続するように一直線な２個の電極が露出した形態を有する。当然、ＬＥＤ照明装置３００は、図３のように円筒の直線型で図示されているが、これに限定されない。 Therefore, the LED lighting device 300 of the present invention includes the first power supply terminal 311 and the second power supply terminal 313 for connecting to the two fluorescent lamp connection terminals 203 of the fluorescent lamp illumination system 200. The first power supply terminal 311 and the second power supply terminal 313 have a form in which two straight electrodes are exposed so as to be connected to the fluorescent lamp connection terminal 203. Naturally, the LED lighting device 300 is illustrated as a cylindrical linear shape as shown in FIG. 3, but is not limited thereto.
ＬＥＤ照明装置３００は、常用交流電源より高い周波数の交流電源を電子式安定器２０１を通じて提供を受けて動作するにもかかわらず、安定的な動作ができるようにする。 The LED lighting device 300 is capable of performing a stable operation despite being operated by receiving an AC power source having a frequency higher than that of a normal AC power source through the electronic ballast 201.
図４を参照すると、本発明のＬＥＤ照明装置３００は、第１電源端子３１１及び／または第２電源端子３１３を通じて入力される安定器２０１の高周波交流電源を、ＬＥＤの動作のための正格直流電圧に変換して出力する駆動回路３３０と、該駆動回路３３０の出力段に直列または並列に連結された複数個のＬＥＤ（ＬＥＤ１、ＬＥＤ２）をさらに含む。図４には、複数個のＬＥＤを代表して駆動回路３３０の出力段に並列に連結された２個のＬＥＤ（ＬＥＤ１、ＬＥＤ２）を図示している。 Referring to FIG. 4, the LED lighting apparatus 300 of the present invention uses a high frequency AC power supply of the ballast 201 input through the first power supply terminal 311 and / or the second power supply terminal 313 as a rated DC voltage for LED operation. And a plurality of LEDs (LED1, LED2) connected in series or in parallel to the output stage of the drive circuit 330. FIG. 4 shows two LEDs (LED1, LED2) connected in parallel to the output stage of the drive circuit 330 on behalf of a plurality of LEDs.
駆動回路３３０は、第１電源部３３１、第２電源部３３３、第１整流部３３５、第２整流部３３７、フィルター部３３９及び駆動部３４１を含む。 The drive circuit 330 includes a first power supply unit 331, a second power supply unit 333, a first rectification unit 335, a second rectification unit 337, a filter unit 339, and a drive unit 341.
第１電源部３３１は、第１電源端子３１１を通じて交流電源の入力を受けて、各端子別に直列に連結されたヒューズ（ＦＵＳＥ１）と並列に連結されたバリスター（Ｖａｒｉｓｔｏｒ）（ＳＶＲ１）を含み、過電圧または過電流交流電源から後段の回路を保護し、並列に連結される高圧キャパシター（ＣＴ１）を具備して交流電源に含まれたノイズを除去する。 The first power supply unit 331 includes a varistor (SVR1) that receives an AC power supply through the first power supply terminal 311 and is connected in parallel to a fuse (FUSE1) connected in series for each terminal. A circuit in the subsequent stage is protected from an overvoltage or overcurrent AC power supply, and a high voltage capacitor (CT1) connected in parallel is provided to remove noise included in the AC power supply.
同様に、第２電源部３３３は、第２電源端子３１３を通じて交流電源の入力を受けて、直列に連結されたヒューズ（ＦＵＳＥ２）と並列に連結されたバリスター（ＳＶＲ２）及び高圧キャパシター（ＣＴ２）を具備する。第１電源部３３１と第２電源部３３３には、通常の交流−直流変換器または正格電圧に降圧するためのトランスフォーマー（Ｔｒａｎｓｆｏｒｍｅｒ）などの部品を使用することができる。 Similarly, the second power supply unit 333 receives the input of the AC power through the second power supply terminal 313, and the varistor (SVR2) and the high voltage capacitor (CT2) connected in parallel with the fuse (FUSE2) connected in series. It comprises. For the first power supply unit 331 and the second power supply unit 333, components such as a normal AC-DC converter or a transformer for stepping down to a rated voltage can be used.
第１整流部３３５と第２整流部３３７は、各々ブリッジダイオード組み合わせ（Ｄ１〜Ｄ４、Ｄ１１〜Ｄ１４）を含み、第１電源部３３１及び第２電源部３３３から入力される交流電源をそれぞれ全波整流してフィルター部３３９に出力する。第１整流部３３５と第２整流部３３７の出力段は、フィルター部３３９の入力段に並列に連結することで、第１整流部３３５と第２整流部３３７の出力電流が加えられる。ブリッジダイオード組み合わせ（Ｄ１〜Ｄ４及びＤ１１〜Ｄ１４）は、安定器２０１から出力される常用電源の数百倍に達する周波数の交流電源を処理するための高周波用ダイオードを使用することが好ましい。 The first rectification unit 335 and the second rectification unit 337 each include a bridge diode combination (D1 to D4, D11 to D14), and each of the AC power sources input from the first power source unit 331 and the second power source unit 333 is full-wave. Rectify and output to the filter unit 339. The output stages of the first rectification unit 335 and the second rectification unit 337 are connected in parallel to the input stage of the filter unit 339 so that the output currents of the first rectification unit 335 and the second rectification unit 337 are added. As the bridge diode combinations (D1 to D4 and D11 to D14), it is preferable to use high-frequency diodes for processing an AC power supply having a frequency reaching several hundred times that of the normal power supply output from the ballast 201.
第１整流部３３５と第２整流部３３７は、フィルター部３３９の入力段に並列に連結することで、ＬＥＤ照明装置３００を図１の蛍光灯用照明システム１００に、他の操作なしに使用することができるようにする。万一、ＬＥＤ照明装置３００が図１の蛍光灯用照明システム１００に連結される場合、外形的に第１電源端子３１１と第２電源端子３１３は、別個の閉回路を構成することができずにスターター１０３を経る一つの閉回路を構成する。しかし、この場合、スターター１０３が動作しないので、ＬＥＤ照明装置３００全体が動作しないことがある。このような問題を防止するため、第１整流部３３５と第２整流部３３７の出力段がフィルター部３３９の共通入力段に並列に連結することで、第１電源端子３１１と第２電源端子３１３を連結する閉回路を内部に形成して、図１のスターター１０３の動作有無にかかわらずＬＥＤ照明装置３００が動作するようにした。 The first rectification unit 335 and the second rectification unit 337 are connected to the input stage of the filter unit 339 in parallel, so that the LED lighting device 300 is used in the fluorescent lamp illumination system 100 of FIG. 1 without any other operation. To be able to. If the LED lighting device 300 is connected to the fluorescent lamp illumination system 100 of FIG. 1, the first power supply terminal 311 and the second power supply terminal 313 cannot form separate closed circuits in appearance. One closed circuit passing through the starter 103 is constructed. However, in this case, since the starter 103 does not operate, the entire LED lighting device 300 may not operate. In order to prevent such a problem, the output stages of the first rectification unit 335 and the second rectification unit 337 are connected in parallel to the common input stage of the filter unit 339, so that the first power supply terminal 311 and the second power supply terminal 313 are connected. The LED lighting device 300 is operated regardless of whether the starter 103 in FIG. 1 is in operation or not.
図１の蛍光灯用照明システム１００に使用するため、付加的に、第１整流部３３５のブリッジダイオード（Ｄ１〜Ｄ４）と第２整流部３３７のブリッジダイオード（Ｄ１１〜Ｄ１４）は、第１電源部３３１及び第２電源部３３３各々に対して同一スタイル（ダイオードの連結方向など）の組み合わせを有さなければならない。異なる場合、第１電源端子３１１から第１整流部３３５と第２整流部３３７を経て第２電源端子３１３に、直に連結されて、負荷に該当するフィルター部３３９に電源が供給されないからである。 For use in the fluorescent lamp illumination system 100 of FIG. 1, the bridge diodes (D1 to D4) of the first rectifier 335 and the bridge diodes (D11 to D14) of the second rectifier 337 are added to the first power source. Each of the unit 331 and the second power supply unit 333 must have a combination of the same style (diode connection direction, etc.). If they are different, the first power supply terminal 311 is directly connected to the second power supply terminal 313 via the first rectification unit 335 and the second rectification unit 337, and power is not supplied to the filter unit 339 corresponding to the load. .
フィルター部３３９は、キャパシターを含み、第１整流部３３５と第２整流部３３７によって全波整流された電圧を直流電圧に平滑化して駆動部３４１に提供する。図４の回路には、ＬＥＤ照明装置３００が有する空間的制約を考慮して、多数の電解コンデンサー（Ｃ１１、Ｃ１２、Ｃ２〜Ｃ４）の並列連結で構成した。フィルター部３３９は、安定器２０１から供給される高周波交流電源の平滑化に十分な時定数（Ｔｉｍｅ Ｃｏｎｓｔａｎｔ）を有するように設計され、駆動部３４１及びＬＥＤ（ＬＥＤ１、ＬＥＤ２）に影響を与えないことが好ましい。 The filter unit 339 includes a capacitor, smoothes the voltage that has been full-wave rectified by the first rectification unit 335 and the second rectification unit 337 into a DC voltage, and provides the voltage to the drive unit 341. The circuit of FIG. 4 is configured by parallel connection of a large number of electrolytic capacitors (C11, C12, C2 to C4) in consideration of the spatial constraints of the LED lighting device 300. The filter unit 339 is designed to have a time constant sufficient for smoothing the high-frequency AC power supplied from the ballast 201, and does not affect the driving unit 341 and the LEDs (LED1, LED2). Is preferred.
駆動部３４１は、バックブーストコンバータ（Ｂｕｃｋ−Ｂｏｏｓｔ Ｃｏｎｖｅｒｔｅｒ）回路を含み、フィルター部３３９から出力される直流電圧をＬＥＤ（ＬＥＤ１、ＬＥＤ２）定格に合うように一定に制御しながらＬＥＤ（ＬＥＤ１、ＬＥＤ２）を点灯する。 The drive unit 341 includes a buck-boost converter circuit, and controls the DC voltage output from the filter unit 339 to be consistent with the LED (LED1, LED2) rating while maintaining the LED (LED1, LED2). Lights up.
駆動部３４１には、公知のバックブーストコンバータ制御方式を使用して、ＬＥＤ（ＬＥＤ１、ＬＥＤ２）に供給される電圧及び電流を一定に制御することができる。ここで、バックブーストコンバータ制御方式には、固定された周波数のクロックパルスのデューティーサイクルを変化させて出力電圧を一定に維持するパルス幅変調（ＰＷＭ：Ｐｕｌｓｅ Ｗｉｄｔｈ Ｍｏｄｕｌａｔｉｏｎ）制御方式、固定されたパルス幅を有したクロック周期を変化させて出力電圧を一定に維持するパルス周波数変調（ＰＦＭ：Ｐｕｌｓｅ Ｆｒｅｑｕｅｎｃｙ Ｍｏｄｕｌａｔｉｏｎ）制御方式、または、出力電圧の誤差によって固定されたパルスで出力されるクロックを制御して出力電圧を一定に維持する可変周波数変調（ＶＦＭ：Ｖａｒｉａｂｌｅ Ｆｒｅｑｕｅｎｃｙ Ｍｏｄｕｌａｔｉｏｎ）制御方式などを挙げることができる。 The drive unit 341 can control the voltage and current supplied to the LEDs (LED1, LED2) to be constant using a known buck-boost converter control method. Here, the buck-boost converter control method includes a pulse width modulation (PWM) control method that maintains a constant output voltage by changing the duty cycle of a clock pulse having a fixed frequency, and a fixed pulse width. A pulse frequency modulation (PFM) control method for maintaining the output voltage constant by changing the clock period having a signal, or controlling and outputting a clock output with a pulse fixed by an error in the output voltage Examples thereof include a variable frequency modulation (VFM) control system that maintains a constant voltage.
図４の駆動部３４１は、パルス幅変調制御方式を使用した例で、パルス幅変調制御のための専用の駆動ＩＣ（Ｕ１）と、抵抗Ｒ１、Ｒ３、Ｒ４とキャパシターＣ５、Ｃ７、Ｃ１７と、電界効果トランジスター（Ｆｉｅｌｄ Ｅｆｆｅｃｔ Ｔｒａｎｓｉｓｔｏｒ）（ＦＥＴ）と、ダイオードＤ２０と、インダクターＬ１、Ｌ１１とを含む。 The drive unit 341 in FIG. 4 is an example using a pulse width modulation control method, and a dedicated drive IC (U1) for pulse width modulation control, resistors R1, R3, R4, capacitors C5, C7, C17, It includes a field effect transistor (FET), a diode D20, and inductors L1 and L11.
駆動ＩＣ（Ｕ１）は、公知のＬＥＤドライバーＩＣであり、電界効果トランジスターＦＥＴを通過して流れる電流を感知し、一定電流が流れるように電界効果トランジスターＦＥＴをスイッチングする。駆動ＩＣ（Ｕ１）は、抵抗Ｒ３、Ｒ４の電圧であるＣＳ端子電圧を内部に設定された所定基準電圧と比較した結果を基に電界効果トランジスターＦＥＴを流れる電流を感知して、その結果によって、電界効果トランジスターＦＥＴのゲート端子電圧を制御するパルス信号をＧＡＴＥ端子を通じて出力する。 The driving IC (U1) is a known LED driver IC, senses a current flowing through the field effect transistor FET, and switches the field effect transistor FET so that a constant current flows. The driving IC (U1) senses the current flowing through the field effect transistor FET based on the result of comparing the CS terminal voltage, which is the voltage of the resistors R3 and R4, with a predetermined reference voltage set inside, and according to the result, A pulse signal for controlling the gate terminal voltage of the field effect transistor FET is output through the GATE terminal.
キャパシターＣ７、Ｃ１７とインダクターＬ１、Ｌ１１は、ＬＣフィルターとして動作して、ダイオードＤ２０は、電界効果トランジスターＦＥＴがターンオフされた時、インダクターＬ１、Ｌ１１にかかる逆電圧によって電界効果トランジスターＦＥＴが破壊されることを防止するために使用される。 The capacitors C7 and C17 and the inductors L1 and L11 operate as an LC filter, and the diode D20 causes the field effect transistor FET to be destroyed by the reverse voltage applied to the inductors L1 and L11 when the field effect transistor FET is turned off. Used to prevent.
これ以外にも、駆動部３４１は、ＬＥＤ（ＬＥＤ１、ＬＥＤ２）に安定的な電圧及び電流を提供するための多様な公知の駆動回路を使用することができる。 In addition, the driving unit 341 may use various known driving circuits for providing a stable voltage and current to the LEDs (LED1, LED2).
以上で説明した図４のＬＥＤ照明装置３００は、駆動回路３３０を使用して蛍光灯用照明システム２００の安定器２０１から入力される高周波の交流電源を安定的な直流電源に変換することで、ＬＥＤ（ＬＥＤ１、ＬＥＤ２）を点灯させる。 The LED lighting device 300 of FIG. 4 described above converts the high-frequency AC power input from the ballast 201 of the fluorescent lamp lighting system 200 into a stable DC power using the drive circuit 330, The LEDs (LED1, LED2) are turned on.
本発明のＬＥＤ照明装置３００は、従来の磁気式及び電子式蛍光灯用照明システムすべてに適用して動作することができる。 The LED lighting device 300 of the present invention can be applied to all conventional magnetic and electronic fluorescent lighting systems.
本発明のＬＥＤ照明装置３００が図２の電子式点灯方式の蛍光灯用照明システム２００に連結される場合、第１電源端子３１１及び第２電源端子３１３から同時に安定器２０１の交流電源が入力されて動作するようになる。 When the LED lighting device 300 of the present invention is connected to the electronic lighting type fluorescent lamp lighting system 200 of FIG. 2, the AC power supply of the ballast 201 is simultaneously input from the first power supply terminal 311 and the second power supply terminal 313. To work.
また、ＬＥＤ照明装置３００が、磁気式点灯方式（Ｇｌｏｗ Ｓｔａｒｔｅｒ方式またはＲａｐｉｄ Ｓｔａｒｔｅｒ方式）の蛍光灯用照明システム１００に連結される場合、第１整流部３３５と第２整流部３３７がフィルター部３３９に並列に連結されているので、交流入力から第１電源端子（３１１）とＬＥＤ（ＬＥＤ１、ＬＥＤ２）及び第２電源端子３１３を経る一つの閉回路が形成されて、スターター１０３が動作しないことによってＬＥＤ照明装置３００が動作しないという問題が発生しない。 In addition, when the LED lighting device 300 is connected to a fluorescent lighting system 100 of a magnetic lighting method (Glow Starter method or Rapid Starter method), the first rectifying unit 335 and the second rectifying unit 337 are connected to the filter unit 339. Since they are connected in parallel, one closed circuit is formed from the AC input through the first power supply terminal (311), the LED (LED1, LED2), and the second power supply terminal 313, and the starter 103 does not operate so that the LED The problem that the lighting device 300 does not operate does not occur.
以上では、本発明の好ましい実施例に対して図示して説明したが、本発明は、上述した特定の実施例に限定されず、特許請求の範囲で請求する本発明の要旨を逸脱することなしに、当該発明が属する技術分野で通常の知識を有した者によって多様な変形実施が可能なことはもちろんであり、このような変形実施は、本発明の技術的思想や展望から個別的に理解されてはならない。 In the foregoing, the preferred embodiments of the present invention have been illustrated and described. However, the present invention is not limited to the specific embodiments described above, and does not depart from the spirit of the present invention as claimed in the claims. In addition, various modifications can be made by those who have ordinary knowledge in the technical field to which the invention belongs, and such modifications can be individually understood from the technical idea and perspective of the present invention. Must not be done.
１０：蛍光灯
１０１：磁気式安定器
２０１：電子式安定器
２０３：蛍光灯接続端子
３００：ＬＥＤ照明装置
３１１：第１電源端子
３１３：第２電源端子
３３１：第１電源部
３３３：第２電源部
３３５：第１整流部
３３７：第２整流部
３３９：フィルター部
３４１：駆動部
DESCRIPTION OF SYMBOLS 10: Fluorescent lamp 101: Magnetic ballast 201: Electronic ballast 203: Fluorescent lamp connection terminal 300: LED lighting device 311: 1st power supply terminal 313: 2nd power supply terminal 331: 1st power supply part 333: 2nd power supply Unit 335: first rectification unit 337: second rectification unit 339: filter unit 341: drive unit
Claims (3)
磁気式または電子式点灯方式の蛍光灯用照明システムの接続端子に挿入される２個の電極（電源端子）をそれぞれ具備して、前記接続端子を通じて前記蛍光灯用照明システムから交流電源の入力を受ける第１電源端子（３１１）と第２電源端子（３１３）と、
前記第１電源端子（３１１）から入力される交流電源に含まれた過電圧または過電流成分を除去する第１電源部（３３１）と、
前記第２電源端子（３１３）から入力される交流電源に含まれた過電圧または過電流成分を除去する第２電源部（３３３）と、
前記第１電源部（３３１）から出力される交流電圧を全波整流する第１整流部（３３５）と、
前記第２電源部（３３３）から出力される交流電圧を全波整流する第２整流部（３３７）と、
前記第１整流部（３３５）及び第２整流部（３３７）の出力段と並列に連結されて前記第１整流部（３３５）及び第２整流部（３３７）で全波整流された電圧を平滑して直流に変換するフィルター部（３３９）及び、
前記フィルター部（３３９）から出力される直流電源から前記複数個のＬＥＤのための定格の電圧及び電流を出力して前記複数個のＬＥＤを点灯する駆動部（３４１）とを含むことを特徴とするＬＥＤ照明装置。 A plurality of LEDs connected in parallel or in series;
Two electrodes (power supply terminals) inserted into connection terminals of a magnetic or electronic lighting type fluorescent lamp illumination system are provided, respectively, and AC power is input from the fluorescent lamp illumination system through the connection terminals. Receiving a first power supply terminal (311) and a second power supply terminal (313);
A first power supply unit (331) for removing an overvoltage or overcurrent component included in an AC power input from the first power supply terminal (311);
A second power supply unit (333) for removing an overvoltage or overcurrent component included in the AC power input from the second power supply terminal (313);
A first rectifier (335) for full-wave rectifying the AC voltage output from the first power supply (331);
A second rectification unit (337) for full-wave rectification of the AC voltage output from the second power supply unit (333);
A voltage that is connected in parallel with the output stage of the first rectifier 335 and the second rectifier 337 and is full-wave rectified by the first rectifier 335 and the second rectifier 337 is smoothed. And a filter unit (339) for converting to direct current,
And a drive unit (341) that outputs rated voltages and currents for the plurality of LEDs from a DC power source output from the filter unit (339) to light the plurality of LEDs. LED lighting device.
前記第１電源部（３３１）に対する前記第１整流部（３３５）のブリッジダイオードの構成が、前記第２電源部（３３３）に対する前記第２整流部（３３７）のブリッジダイオードの構成と同一形態で前記フィルター部（３３９）に並列連結することで、前記磁気式点灯方式の蛍光灯用照明システムに連結される場合にも前記複数個のＬＥＤに電源が供給されることを特徴とする、請求項１に記載のＬＥＤ照明装置。 The first rectification unit (335) and the second rectification unit (337) are each implemented by a bridge diode,
The configuration of the bridge diode of the first rectification unit (335) with respect to the first power supply unit (331) is the same as the configuration of the bridge diode of the second rectification unit (337) with respect to the second power supply unit (333). The plurality of LEDs are connected to the filter unit (339) in parallel so that power is supplied to the plurality of LEDs even when connected to the magnetic lighting system for fluorescent lamps. The LED lighting device according to 1.
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| JP2015525440A (en) * | 2012-05-31 | 2015-09-03 | 寧波福泰電器有限公司 | Variable light distribution LED fluorescent lamp |
| JP2014032773A (en) * | 2012-08-01 | 2014-02-20 | Future Eve Technology Kk | Led lamp |
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| JP2016029666A (en) * | 2015-10-27 | 2016-03-03 | 株式会社リコー | Lighting control circuit, floodlight using lighting control circuit, and lighting device using floodlight |
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| JPWO2017146049A1 (en) * | 2016-02-25 | 2018-08-30 | 三菱電機株式会社 | Power supply device, illumination lamp, and illumination device |
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