JP2014154493A5 - - Google Patents
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- JP2014154493A5 JP2014154493A5 JP2013025679A JP2013025679A JP2014154493A5 JP 2014154493 A5 JP2014154493 A5 JP 2014154493A5 JP 2013025679 A JP2013025679 A JP 2013025679A JP 2013025679 A JP2013025679 A JP 2013025679A JP 2014154493 A5 JP2014154493 A5 JP 2014154493A5
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- voltage
- semiconductor light
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- lighting device
- emitting element
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- 238000001514 detection method Methods 0.000 claims description 13
- 239000004065 semiconductor Substances 0.000 claims description 12
- 230000001172 regenerating Effects 0.000 claims description 2
Description
第１の発明は、半導体発光素子の点灯装置であって、
直流電源に直列接続されてオンオフ制御されるスイッチング素子と、
前記スイッチング素子と直列に接続されて前記スイッチング素子のオン時に前記直流電源から電流が流れるインダクタンス要素と、
前記スイッチング素子のオン時に前記インダクタンス要素に蓄積されたエネルギーを前記スイッチング素子のオフ時に半導体発光素子に放出する回生ダイオードと、
前記スイッチング素子と直列に接続した検出抵抗を備え、前記検出抵抗の端子間電圧を検出することで前記スイッチング素子に流れる電流を検出する検出手段と、
第１端子に前記検出手段により検出された検出値を受け且つ第２端子に閾値を受け前記検出値が前記閾値に達すると出力を切り替えるコンパレータを含み、前記コンパレータの出力に応じて前記スイッチング素子をオフさせると共に、前記インダクタンス要素のエネルギー放出が完了したときに前記スイッチング素子をオンさせる制御手段と、
前記閾値を決定する電圧を変更可能な可変抵抗素子と、
を備えることを特徴とする。
1st invention is a lighting device of a semiconductor light emitting element,
A switching element connected in series to a DC power source and controlled to be turned on and off;
An inductance element connected in series with the switching element and through which a current flows from the DC power source when the switching element is on;
A regenerative diode that releases energy stored in the inductance element when the switching element is on to the semiconductor light emitting element when the switching element is off;
A detection unit including a detection resistor connected in series with the switching element, and detecting a current flowing through the switching element by detecting a voltage between terminals of the detection resistor;
The detection value receiving the threshold and the second terminal receives the detection value detected by the detection means to the first terminal includes a comparator for switching the output to reach the threshold value, the switching element in response to the output of the comparator Control means for turning off and turning on the switching element when energy release of the inductance element is completed;
A variable resistance element capable of changing a voltage for determining the threshold;
It is characterized by providing.
制御集積回路ＩＣ１の４番ピン（ＣＳ）はチョッパ電流検出端子であり、その電圧が、
ＩＣ内部のＲＮＦとＣＮＦで構成されるノイズフィルタを介して、コンパレータＣＰ１の
＋入力端子に印加される。コンパレータＣＰ１の−入力端子には乗算回路５２から出力される閾値電圧Ｖｔｈｃｓが印加されている。
The fourth pin (CS) of the control integrated circuit IC1 is a chopper current detection terminal, and its voltage is
The voltage is applied to the + input terminal of the comparator CP1 through a noise filter composed of R NF and C NF inside the IC. The threshold voltage V thcs output from the multiplier circuit 52 is applied to the negative input terminal of the comparator CP1.
Claims (6)
前記スイッチング素子と直列に接続されて前記スイッチング素子のオン時に前記直流電源から電流が流れるインダクタンス要素と、
前記スイッチング素子のオン時に前記インダクタンス要素に蓄積されたエネルギーを前記スイッチング素子のオフ時に半導体発光素子に放出する回生ダイオードと、
前記スイッチング素子と直列に接続した検出抵抗を備え、前記検出抵抗の端子間電圧を検出することで前記スイッチング素子に流れる電流を検出する検出手段と、
第１端子に前記検出手段により検出された検出値を受け且つ第２端子に閾値を受け前記検出値が前記閾値に達すると出力を切り替えるコンパレータを含み、前記コンパレータの出力に応じて前記スイッチング素子をオフさせると共に、前記インダクタンス要素のエネルギー放出が完了したときに前記スイッチング素子をオンさせる制御手段と、
前記閾値を決定する電圧を変更可能な可変抵抗素子と、
を備えることを特徴とする半導体発光素子の点灯装置。 A switching element connected in series to a DC power source and controlled to be turned on and off;
An inductance element connected in series with the switching element and through which a current flows from the DC power source when the switching element is on;
A regenerative diode that releases energy stored in the inductance element when the switching element is on to the semiconductor light emitting element when the switching element is off;
A detection unit including a detection resistor connected in series with the switching element, and detecting a current flowing through the switching element by detecting a voltage between terminals of the detection resistor;
The detection value receiving the threshold and the second terminal receives the detection value detected by the detection means to the first terminal includes a comparator for switching the output to reach the threshold value, the switching element in response to the output of the comparator Control means for turning off and turning on the switching element when energy release of the inductance element is completed;
A variable resistance element capable of changing a voltage for determining the threshold;
A lighting device for a semiconductor light-emitting element, comprising:
入力電圧を受ける第３端子と、
制御電源電圧を第１入力として受け、自身の出力を第２入力として帰還的に受けるエラーアンプと、
前記入力電圧および前記エラーアンプの出力を受けて出力電圧を生成し、前記出力電圧を前記コンパレータの前記第２端子に前記閾値として与える乗算回路と、
を含み、
前記可変抵抗素子と直列に接続する分圧抵抗をさらに備え、
前記可変抵抗素子は、前記分圧抵抗とともに前記制御電源電圧を分圧することで前記入力電圧を生成し、
前記入力電圧が、前記閾値を決定する電圧であり、
前記乗算回路における前記入力電圧と前記出力電圧の入出力特性が線形領域と飽和領域とを有し、前記可変抵抗素子の抵抗値可変幅は、少なくとも前記入出力特性における動作点を前記線形領域に位置させる範囲で前記入力電圧を可変生成するように予め定められたことを特徴とする請求項１乃至３のいずれか１項に記載の半導体発光素子の点灯装置。 The control means is
A third terminal for receiving an input voltage;
An error amplifier that receives a control power supply voltage as a first input and receives its output as a second input in a feedback manner;
A multiplication circuit that receives the input voltage and the output of the error amplifier to generate an output voltage, and applies the output voltage to the second terminal of the comparator as the threshold;
It includes,
A voltage dividing resistor connected in series with the variable resistance element;
The variable resistance element generates the input voltage by dividing the control power supply voltage together with the voltage dividing resistor,
The input voltage is a voltage that determines the threshold;
The input / output characteristics of the input voltage and the output voltage in the multiplier circuit have a linear region and a saturation region, and the variable resistance element has a resistance value variable width at least an operating point in the input / output characteristic in the linear region. 4. The lighting device for a semiconductor light emitting element according to claim 1 , wherein the input voltage is variably generated within a range to be positioned . 5.
前記半導体発光素子の点灯装置から電流を供給される半導体発光素子と、
を備えることを特徴とする照明装置。 A lighting device for a semiconductor light-emitting element according to any one of claims 1 to 5,
A semiconductor light emitting element supplied with a current from the lighting device of the semiconductor light emitting element;
A lighting device comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013025679A JP6032042B2 (en) | 2013-02-13 | 2013-02-13 | Semiconductor light-emitting element lighting device and lighting fixture using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013025679A JP6032042B2 (en) | 2013-02-13 | 2013-02-13 | Semiconductor light-emitting element lighting device and lighting fixture using the same |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2014154493A JP2014154493A (en) | 2014-08-25 |
| JP2014154493A5 true JP2014154493A5 (en) | 2016-03-17 |
| JP6032042B2 JP6032042B2 (en) | 2016-11-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2013025679A Active JP6032042B2 (en) | 2013-02-13 | 2013-02-13 | Semiconductor light-emitting element lighting device and lighting fixture using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6032042B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6308082B2 (en) * | 2014-09-22 | 2018-04-11 | 株式会社デンソー | Injector drive device |
| JP6545946B2 (en) * | 2014-11-04 | 2019-07-17 | ローム株式会社 | Switching converter, control circuit therefor, lighting device using the same, electronic device |
| KR101768528B1 (en) * | 2016-03-21 | 2017-08-18 | 주식회사 대한엠피에스 | A frying system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3496525B2 (en) * | 1998-07-09 | 2004-02-16 | 松下電工株式会社 | Power supply |
| JP2001286131A (en) * | 2000-04-03 | 2001-10-12 | Matsushita Electric Works Ltd | Power-source unit |
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2013
- 2013-02-13 JP JP2013025679A patent/JP6032042B2/en active Active
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