JP2002329595A - Electronic ballast for high-pressure discharge lamp - Google Patents
Electronic ballast for high-pressure discharge lampInfo
- Publication number
- JP2002329595A JP2002329595A JP2001170231A JP2001170231A JP2002329595A JP 2002329595 A JP2002329595 A JP 2002329595A JP 2001170231 A JP2001170231 A JP 2001170231A JP 2001170231 A JP2001170231 A JP 2001170231A JP 2002329595 A JP2002329595 A JP 2002329595A
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- high frequency
- circuit
- frequency
- discharge lamp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000008878 coupling Effects 0.000 claims abstract description 10
- 238000010168 coupling process Methods 0.000 claims abstract description 10
- 238000005859 coupling reaction Methods 0.000 claims abstract description 10
- 239000003990 capacitor Substances 0.000 abstract description 13
- 238000004904 shortening Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 5
- 230000020169 heat generation Effects 0.000 description 4
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 4
- 229910052753 mercury Inorganic materials 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- IYRDVAUFQZOLSB-UHFFFAOYSA-N copper iron Chemical compound [Fe].[Cu] IYRDVAUFQZOLSB-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910001507 metal halide Inorganic materials 0.000 description 2
- 150000005309 metal halides Chemical class 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- 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
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、高圧放電灯を点灯
させるための安定器に関し、特に高周波電力による点灯
電力の供給を行うことにより、軽量で熱損出が少なく力
率の改善も図られる電子式安定器に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ballast for lighting a high-pressure discharge lamp, and more particularly to a ballast for supplying high-frequency power for lighting, which is lightweight, has little heat loss, and has an improved power factor. It relates to an electronic ballast.
【０００２】[0002]
【従来の技術】従来、一般的な蛍光灯の点灯と同様に、
水銀灯を始めメタルハライドランプやナトリウムランプ
等の高圧ガス中での放電を利用した高圧放電灯を点灯さ
せるためには安定器を使用している。該安定器にはチョ
ークコイルや磁気漏れ変圧器が使用され、電源電圧はＡ
Ｃ２００Ｖである。2. Description of the Related Art Conventionally, similar to the lighting of a general fluorescent lamp,
A ballast is used to turn on a high-pressure discharge lamp utilizing discharge in a high-pressure gas such as a mercury lamp, a metal halide lamp, and a sodium lamp. A choke coil or a magnetic leakage transformer is used for the ballast.
C200V.
【０００３】一方、高周波電子安定器にする場合でも、
次の様な問題を抱えている。水銀灯はアーク放電である
ため、始動時は電圧が約２０Ｖ、電流４Ａ（３００Ｗ
球）で球の蒸気圧が高くなり、安定点灯時には電圧１２
０Ｖ、電流２．５Ａとなる。つまり点灯が連続し輝度が
上昇するにつれて放電電流は減少する。この様に放電電
流については、蛍光灯（低圧放電灯）とは異なる動きと
なる。点灯が安定するまでのパルス電流が発熱の原因と
なり、「発熱」が水銀灯（高圧放電灯）の電子安定器の
実用化を困難にしてきた。この発熱を阻止するためには
大容量のスイッチング回路（サイリスタ等）を必要とし
たが、最近の開発で、ランプに流れる電流を検出し、そ
の電流がある一定の範囲内にあるように、出力電圧をコ
ントロールし、サイリスタを使用せずに発熱を抑え、通
常の電界効果型トランジスタが使用できるので、低コス
トを実現することが可能となった。図３は上記の技術に
よる高周波電子安定器の点灯回路であり、特願２０００
−２３７７２８による。On the other hand, even when a high-frequency electronic ballast is used,
I have the following problems. Since a mercury lamp is an arc discharge, a voltage of about 20 V and a current of 4 A (300 W
(Ball), the vapor pressure of the ball increases, and the voltage is 12
0 V and current 2.5 A. That is, the discharge current decreases as the lighting continues and the luminance increases. Thus, the discharge current behaves differently from the fluorescent lamp (low-pressure discharge lamp). The pulse current until the lighting becomes stable causes heat generation, and "heat generation" has made it difficult to commercialize an electronic ballast of a mercury lamp (high-pressure discharge lamp). In order to prevent this heat generation, a large-capacity switching circuit (such as a thyristor) was required. By controlling the voltage, suppressing heat generation without using a thyristor, and using a normal field-effect transistor, it was possible to realize low cost. FIG. 3 shows a lighting circuit of a high-frequency electronic ballast according to the above technology.
-237728.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記の
高周波電子安定器を使用した高圧放電灯の点灯において
は、以下のような課題があった。However, there are the following problems in lighting a high-pressure discharge lamp using the high-frequency electronic ballast described above.
【０００５】高周波電子安定器は従来、商用電源（ＡＣ
１００Ｖ、２００Ｖ、５０／６０Ｈｚ）を直流電源（Ｄ
Ｃ）にし、その電源を所定の周波数にスイッチングして
高周波電源を作り、負荷への供給電源としている。そし
て直流電源は、必要容量のケミカル電解コンデンサーに
電力を溜て直流化しているため、ケミカル電解コンデン
サーは必要不可欠となっている。しかし、このケミカル
電解コンデンサーは、使用頻度や熱などの周囲環境等に
よって経年変化による寿命があり、安全サイドに設計す
るとコスト的に負担が大きかった。Conventionally, a high-frequency electronic ballast has conventionally been provided with a commercial power supply (AC
100V, 200V, 50 / 60Hz) to DC power supply (D
C), the power supply is switched to a predetermined frequency to produce a high-frequency power supply, which is used as a power supply to a load. And since the DC power supply stores electric power in a required capacity of a chemical electrolytic capacitor and converts it into DC, the chemical electrolytic capacitor is indispensable. However, this chemical electrolytic capacitor has a life due to aging depending on the frequency of use, the surrounding environment such as heat, and the like, and if it is designed on the safe side, the cost is large.
【０００６】本発明は、特願２０００−２３７７２８の
発明を踏まえた上で、更に上記課題に鑑み成されたもの
である。従って、従来のチョークコイルや磁気漏れ変圧
器等の銅鉄型安定器を使用せずに、高周波電力による点
灯電力の供給を行うことにより、軽量で熱損失が少なく
力率も改善され、始動時間や再始動時間も短縮でき、更
には電源電圧の変動の影響を受けにくい電子式安定器で
あり、且つ従来のインバータ技術を使用せず、ＡＣから
ＡＣにダイレクトにコンバートする電子式安定器を提供
することを目的とする。The present invention has been made in view of the above-mentioned problems, based on the invention of Japanese Patent Application No. 2000-237728. Therefore, by supplying lighting power with high-frequency power without using a conventional copper-iron type ballast such as a choke coil or a magnetic leakage transformer, the power factor is light, the heat loss is small, and the power factor is improved. And an electronic ballast that reduces the restart time and is less susceptible to fluctuations in power supply voltage, and that converts directly from AC to AC without using conventional inverter technology. The purpose is to do.
【０００７】[0007]
【課題を解決するための手段】商用電源である交流電源
はフィルター回路（１）を通り、整流回路（２）で脈流
となる。該回路より得られた脈流電源を電源電圧変動や
負荷変動に対して安定した高周波電源とするためのスイ
ッチング電源回路（３）により高周波化し、その高周波
を含む脈流電源から高周波成分だけを取り出すカップリ
ングコンデンサー（４）で高周波電源を抜き出し、ＬＣ
共振（５）で波形の角を取り、放電灯の安定した電流を
流す為のリアクタンス（６）等を構成する。そして、そ
の波形は、商用電源をフィルター回路を通し、整流回路
により両波整流しその脈流電源を入力波形に応じたドラ
イバー回路によりスイッチング（アクティブフイルタ
ー）し３０〜５０ＫＨｚの波形とする。この出力はＦＲ
Ｄ（ファーストリカバリーダイオード）を通し、小容量
のフイルムコンデンサに導入し、数ｍＡの負荷（ブリー
ダー抵抗）により、その電圧やスイッチング素子に流れ
る電流等を検出しその結果をスイッチングドライバーに
加味し、結果として出力電圧を一定にする。An AC power supply, which is a commercial power supply, passes through a filter circuit (1) and forms a pulsating flow in a rectifier circuit (2). The switching power supply circuit (3) for converting the pulsating power supply obtained from the circuit into a high-frequency power supply that is stable against power supply voltage fluctuations and load fluctuations is turned into a high frequency, and only high-frequency components are extracted from the pulsating power supply including the high frequency. Extract the high frequency power supply with the coupling condenser (4), and
The corner of the waveform is taken at the resonance (5) to form a reactance (6) for flowing a stable current of the discharge lamp. Then, the waveform of the commercial power supply is passed through a filter circuit, the two-wave rectification is performed by a rectification circuit, and the pulsating power supply is switched (active filter) by a driver circuit corresponding to the input waveform to have a waveform of 30 to 50 KHz. This output is FR
D (fast recovery diode), introduced into a small-capacity film capacitor, a load (bleeder resistance) of several mA detects the voltage and current flowing through the switching element, and adds the result to the switching driver. To keep the output voltage constant.
【０００８】一方、スイッチングにより高周波（３０〜
５０ＫＨｚ）化された電源（脈流）はＣ２を通り、０
（ゼロ）電圧を基準に上下均等にし、高周波リーケージ
トランスを通して、ランプに供給する。On the other hand, high frequency (30 to
50 KHz) of has been power (pulsating flow) passes through C 2, 0
The voltage is equalized up and down based on the (zero) voltage, and supplied to the lamp through a high-frequency leakage transformer.
【０００９】即ち、入力５０／６０Ｈｚ交流電源を直接
スイッチングすることにより、ダイレクトに３０〜５０
ＫＨｚの交流とし、（周波数変換）リーケージトランス
を通し高圧放電灯を点灯する。このため回路に直流化の
ためのケミカルコンデンサーやパワースイッチング用の
サイリスタやＦＥＴ、或いはトランジスタが不用とな
り、発熱源の減少及び寿命の延命を計ることができ、合
わせてコスト減にすることができる。That is, by directly switching the input 50/60 Hz AC power supply, 30 to 50
A high-frequency discharge lamp is turned on through a (frequency conversion) leakage transformer with an alternating current of KHz. For this reason, a chemical capacitor for direct current conversion, a thyristor, a FET, or a transistor for power switching is not required in the circuit, so that the heat source can be reduced and the life can be prolonged, and the cost can be reduced.
【００１０】[0010]
【発明の実施の形態】本発明の実施の形態および実施例
を図を用いて説明する。図１は本発明の高圧放電灯用電
子式安定器のブロック図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments and examples of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of an electronic ballast for a high pressure discharge lamp according to the present invention.
【００１１】商用電源（交流）をフィルター回路（１）
を通すことにより、第一に本装置から発生する各種ノイ
ズ（高調波、トリガー）を外部ラインに重畳させない。
第二に外部よりラインを通して本装置にノイズ（外乱）
等が侵入し結果的にランプ点灯に影響のない様にするた
めに必要である。そのためには２段フィルターとすると
良い。２段フイルターでなくとも高調波ガイドラインに
は適合範囲である。A commercial power supply (AC) is filtered by a filter circuit (1).
First, various noises (harmonics, triggers) generated from the apparatus are not superimposed on the external line.
Second, noise (disturbance) on the device through the line from outside
It is necessary to prevent the intrusion and the like from invading and consequently affect the lighting of the lamp. For this purpose, a two-stage filter may be used. Even if it is not a two-stage filter, it is within the scope of the harmonic guidelines.
【００１２】フィルター回路を通った交流電源は、ブリ
ッチダイオードで全波整流（２）し、脈流とする。この
脈流はコンデンサーによりクランプしても１００Ｈｚの
周波数でコンデンサーのインピーダンス（１／２πｆ
ｃ）或いはチョークコイルのインピーダンス（２πｆ
Ｌ）からみて大型となり周波数を上げないと不利とな
る。The AC power supply that has passed through the filter circuit is subjected to full-wave rectification (2) by a rich diode to form a pulsating flow. Even if this pulsating current is clamped by a capacitor, the impedance of the capacitor (1 / 2πf
c) or the impedance of the choke coil (2πf
L), it becomes large and disadvantageous unless the frequency is raised.
【００１３】この脈流を電源として、チョークコイル
（３）の出口をスイッチング（３０〜５０ＫＨｚ）して
高周波化することにより、その後の点灯に有利に導く。Using the pulsating current as a power source, the outlet of the choke coil (3) is switched (30 to 50 KHz) to increase the frequency, thereby advantageously leading to subsequent lighting.
【００１４】高圧放電灯の点灯に必要な電圧を作る事と
合わせて、入力電流の波形も高調波をできるだけ含ませ
ない様にするべく、アクティブフィルターとして機能さ
せる。つまり、入力波形に応じたスイッチング及び出力
電圧と電流を検出しその総合によりドライバー回路によ
ってスイッチング素子を動作させる。In addition to generating the voltage required for lighting the high-pressure discharge lamp, the input current waveform is made to function as an active filter so that the waveform does not include harmonics as much as possible. That is, switching according to the input waveform and output voltage and current are detected, and the switching element is operated by the driver circuit based on the total of the detected voltage and current.
【００１５】チョークコイル（ＣＨ１）の出口は３０〜
５０ＫＨｚの断続波となり脈流の高周波が形成されてい
る。The outlet of the choke coil (CH 1 ) is 30 to
It becomes an intermittent wave of 50 KHz, and a pulsating high frequency is formed.
【００１６】この電力をカップリングコンデンサー
（４）により零電位を基準に上下に均等に分け、リーケ
ージトランス（６）を通して高圧放電灯を点灯させる。This power is equally divided vertically by a coupling capacitor (4) with reference to zero potential, and the high-pressure discharge lamp is turned on through a leakage transformer (6).
【００１７】カップリングコンデンサー（Ｃ３）を通過
させるには入力波形は５０％のデューティであることが
望ましい。つまり、出力電力一杯のスイッチングである
とＯＮの時間が長く、ＯＦＦの時間が極僅かとなりカッ
プリングを通過できない。また、Ｃ３は充電され放電が
出来ない状態だと放電灯には電流が流れない事となる。It is desirable that the input waveform has a duty of 50% in order to pass through the coupling capacitor (C 3 ). In other words, if the switching is full of output power, the ON time is long, and the OFF time is extremely short, so that the coupling cannot pass. In addition, C 3 is the fact that no current flows through the discharge lamp that it is the state that can not be charged discharge.
【００１８】カップリングコンデンサー（４）を通過し
た電流をＬＣ共振回路（５）を通り、リーケージトラン
ス（６）に供給すると放電灯にかかる波形は角の取れた
丸みのある波形となりランプの寿命を縮める事が少な
い。When the current passing through the coupling capacitor (4) passes through the LC resonance circuit (5) and is supplied to the leakage transformer (6), the waveform applied to the discharge lamp becomes a rounded waveform with sharp corners, and the life of the lamp is extended. Less shrinking.
【００１９】点灯開始には放電電流が多く、そのランプ
の端子電圧は非常に低い（約２０Ｖで負性特性）。その
時はリーケージトランス（６）に於いて電圧ドロップを
起こし電流を制限する必要がある。このためできるだけ
定電流点灯をするよう、この高周波用リーケージトラン
スを設計に組み込むと良い。At the start of lighting, the discharge current is large and the terminal voltage of the lamp is very low (negative characteristic at about 20 V). At that time, it is necessary to cause a voltage drop in the leakage transformer (6) to limit the current. Therefore, it is preferable to incorporate this high-frequency leakage transformer into the design so as to perform constant current lighting as much as possible.
【００２０】２０〜１００ＫＨｚの点灯周波数だと商用
周波数に比べて２０％程度の省エネが発生するが放電灯
の設置工事を考えるとランプまでの導線が電力ロス（高
周波伝導）とならない為にも周波数はあまり高くない方
が良い。以上の条件を考慮すると３０〜５０ＫＨｚが最
適である。２０〜３０ＫＨｚの間はリモコンに影響を与
えるので避けたほうが良い。At a lighting frequency of 20 to 100 KHz, energy saving of about 20% is generated as compared with the commercial frequency. However, considering the installation work of the discharge lamp, the frequency is reduced because the lead wire to the lamp does not cause power loss (high-frequency conduction). Should not be too high. Considering the above conditions, 30 to 50 KHz is optimal. It is better to avoid the frequency range of 20 to 30 KHz because it affects the remote controller.
【００２１】上記の形態によって、電源波形は図２のＡ
〜Ｅの形状となる。まず、商用電源の５０／６０Ｈｚの
交流電源（Ａ）は、全波整流（Ｂ：５０／６０Ｈｚ）と
なり、その全波整流はドライバー回路で作られたスイチ
ングゲート波形（Ｃ：３０〜５０ＫＨｚ）と合成（Ｄ）
され、そしてカップリングコンデンサーを通過した波形
（Ｅ）は、リケージトランスを経てランプに３０〜５０
ＫＨｚの高周波波形の交流電源となる。According to the above embodiment, the power supply waveform is represented by A in FIG.
~ E. First, a 50/60 Hz commercial power supply (A) is full-wave rectified (B: 50/60 Hz), and the full-wave rectification is a switching gate waveform (C: 30 to 50 KHz) made by a driver circuit. And synthesis (D)
The waveform (E) passed through the coupling condenser and passed through the coupling transformer was applied to the lamp by 30-50.
It becomes an AC power supply with a high frequency waveform of KHz.
【００２２】[0022]
【発明の効果】以上述べたように、本発明の高圧放電灯
用電子式安定器を使用して水銀灯を始めメタルハライド
ランプやナトリウムランプ等の高圧放電灯或いは蛍光灯
の点灯を行うようにすれば、従来のチョークコイルや磁
気漏れ変圧器等の銅鉄型安定器を使用することなく、小
型軽量のフェライト芯によるチョークコイルが使用で
き、軽量化に大きく貢献できるという効果を奏する。ま
た、高周波点灯により始動時間や再始動時間も短縮でき
る。また、ケミカル電解コンデンサやトランジスタやＦ
ＥＴが不用になり、熱損失も少なくなる。更にはスイッ
チング電源回路により力率の改善が図られると共に電源
電圧の変動や負荷変動の影響も受けにくいものとなると
いう数々の効果を奏する。As described above, if the electronic ballast for a high pressure discharge lamp of the present invention is used to light a high pressure discharge lamp such as a mercury lamp, a metal halide lamp, a sodium lamp, or a fluorescent lamp. Also, a choke coil made of a small and lightweight ferrite core can be used without using a conventional choke coil or a copper-iron type ballast such as a magnetic leakage transformer, which has the effect of greatly contributing to weight reduction. Further, the starting time and the restarting time can be shortened by the high frequency lighting. In addition, chemical electrolytic capacitors, transistors and F
ET is unnecessary and heat loss is reduced. Further, the switching power supply circuit has various effects such that the power factor is improved and the power supply voltage is less affected by the fluctuation of the power supply voltage and the load.
【図１】本発明の高圧放電灯用電子式安定器のブロック
図である。FIG. 1 is a block diagram of an electronic ballast for a high pressure discharge lamp according to the present invention.
【図２】本発明の高圧放電灯用電子式安定器の電源波形
の変化Ａ〜Ｅを表し、且つ波形の形状である。FIG. 2 shows changes A to E of power supply waveforms of the electronic ballast for a high-pressure discharge lamp of the present invention, and shows waveform shapes.
１ フィルター回路 ２ 整流回路 ３ スイッチング回路 ４ カップリングコンデンサー ５ ＬＣ共振回路 ６ リーケージトランス ７ 高圧放電灯ランプ或いは蛍光灯ランプ DESCRIPTION OF SYMBOLS 1 Filter circuit 2 Rectifier circuit 3 Switching circuit 4 Coupling capacitor 5 LC resonance circuit 6 Leakage transformer 7 High-pressure discharge lamp or fluorescent lamp
Claims (2)
路（１）を通り、整流回路（２）で脈流となる。該回路
より得られた脈流電源を電源電圧変動や負荷変動に対し
て安定した高周波電源とするためのスイッチング電源回
路（３）により高周波化し、その高周波を含む脈流電源
から高周波成分だけを取り出すカップリングコンデンサ
ー（４）で高周波電源を抜き出し、ＬＣ共振（５）で波
形の角を取り、放電灯の安定した電流を流す為のリアク
タンス（６）により構成することを特徴とする、高圧放
電灯用電子式安定器。An AC power supply, which is a commercial power supply, passes through a filter circuit (1) and forms a pulsating flow in a rectifier circuit (2). The switching power supply circuit (3) for converting the pulsating power supply obtained from the circuit into a high-frequency power supply that is stable against power supply voltage fluctuations and load fluctuations is turned into a high frequency, and only high-frequency components are extracted from the pulsating power supply including the high frequency. A high-frequency discharge lamp characterized by comprising a high-frequency power supply extracted by a coupling condenser (4), a corner of a waveform obtained by an LC resonance (5), and a reactance (6) for flowing a stable current of the discharge lamp. For electronic ballast.
せる役割を担い、商用電源の５０／６０Ｈｚの交流電源
は、全波整流（５０／６０Ｈｚ）となり、その全波整流
はドライバー回路で作られたスイッチングゲート波形
（３０〜５０ＫＨｚ）と合成され、そしてリーケージト
ランスを経た波形はランプに３０〜５０ＫＨｚの高周波
波形の交流電源となる、ことを特徴とする高圧放電灯用
電子式安定器。2. The above circuits each have a role of changing a current waveform, and a 50/60 Hz AC power supply of a commercial power supply is full-wave rectified (50/60 Hz), and the full-wave rectification is performed by a driver circuit. An electronic ballast for a high pressure discharge lamp, characterized in that the switching gate waveform (30 to 50 KHz) is combined with the switching gate waveform (30 to 50 KHz), and the waveform that has passed through the leakage transformer becomes an AC power source having a high frequency waveform of 30 to 50 KHz to the lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001170231A JP2002329595A (en) | 2001-05-01 | 2001-05-01 | Electronic ballast for high-pressure discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001170231A JP2002329595A (en) | 2001-05-01 | 2001-05-01 | Electronic ballast for high-pressure discharge lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002329595A true JP2002329595A (en) | 2002-11-15 |
Family
ID=19012179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001170231A Pending JP2002329595A (en) | 2001-05-01 | 2001-05-01 | Electronic ballast for high-pressure discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002329595A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103037602A (en) * | 2011-10-08 | 2013-04-10 | 张玉清 | Electronic ballast with adjustable luminance |
| CN103634999A (en) * | 2012-08-20 | 2014-03-12 | 黄鹏云 | Low-power-factor separate excitation type metal halogen lamp electronic ballast |
-
2001
- 2001-05-01 JP JP2001170231A patent/JP2002329595A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103037602A (en) * | 2011-10-08 | 2013-04-10 | 张玉清 | Electronic ballast with adjustable luminance |
| CN103634999A (en) * | 2012-08-20 | 2014-03-12 | 黄鹏云 | Low-power-factor separate excitation type metal halogen lamp electronic ballast |
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