JP2015141756A5 - - Google Patents

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JP2015141756A5
JP2015141756A5 JP2014012580A JP2014012580A JP2015141756A5 JP 2015141756 A5 JP2015141756 A5 JP 2015141756A5 JP 2014012580 A JP2014012580 A JP 2014012580A JP 2014012580 A JP2014012580 A JP 2014012580A JP 2015141756 A5 JP2015141756 A5 JP 2015141756A5
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control signal
frequency
control
primary winding
circuit
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JP2014012580A
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JP2015141756A (en
JP6273863B2 (en
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第１の発明にかかる点灯回路は、フライバックコンバータ回路と制御回路とを備える。フライバックコンバータ回路は、一次巻線および前記一次巻線と極性向きが反対である二次巻線とを備えた絶縁トランスと、一端が前記一次巻線に接続し他端が接地され前記一端と前記他端との間のスイッチングのための制御端子を備えるスイッチング素子と、を含む。制御回路は、前記制御端子に制御信号を供給し、前記制御信号の周波数を増加させたらオン時間を減少させ前記制御信号の周波数を減少させたら前記オン時間を増加させるように前記制御信号の周波数を変化させる。 A lighting circuit according to a first invention includes a flyback converter circuit and a control circuit. The flyback converter circuit includes a primary winding and a secondary winding having a polarity opposite to that of the primary winding, one end connected to the primary winding, the other end grounded, and the one end A switching element having a control terminal for switching between the other end. The control circuit supplies a control signal to the control terminal, the frequency of the control signal so as to increase the on-time After reducing the frequency of the control signal to reduce the on-time After increasing the frequency of the control signal To change.

Claims (11)

一次巻線および前記一次巻線と極性向きが反対である二次巻線とを備えた絶縁トランスと、一端が前記一次巻線に接続し他端が接地され前記一端と前記他端との間のスイッチングのための制御端子を備えるスイッチング素子と、を含むフライバックコンバータ回路と、
前記制御端子に制御信号を供給し、前記制御信号の周波数を増加させたらオン時間を減少させ前記制御信号の周波数を減少させたら前記オン時間を増加させるように前記制御信号の周波数を変化させる制御回路と、
を備える点灯回路。 An insulating transformer having a primary winding and a secondary winding having a polarity opposite to that of the primary winding, and one end connected to the primary winding and the other end grounded, between the one end and the other end A flyback converter circuit including a switching element having a control terminal for switching
Supplies a control signal to the control terminal, the control for changing the frequency of the control signal so as to increase the on-time After reducing the frequency of the control signal to reduce the on-time After increasing the frequency of the control signal Circuit,
A lighting circuit comprising: 前記制御回路は、前記制御信号の周波数と前記オン時間の二乗とを積算した値が一定となるように、前記制御信号を変更する請求項１に記載の点灯回路。 Said control circuit, so that a value obtained by multiplying the square of the frequency and the ON time of the control signal is constant, the lighting circuit according to claim 1 for changing the control signal. 前記制御回路は、予め定めた一次関数に従って前記制御信号の周波数と前記オン時間を変更する請求項１に記載の点灯回路。 Wherein the control circuit, the lighting circuit according to claim 1 for changing the ON time and the frequency of the control signal in accordance with a linear function determined in advance. 前記制御回路は、前記制御信号の周波数を１７０ＫＨｚ以下の周波数範囲で変化させる請求項３に記載の点灯回路。   The lighting circuit according to claim 3, wherein the control circuit changes a frequency of the control signal in a frequency range of 170 KHz or less. 前記制御回路は、前記制御信号の周波数を２０ＫＨｚ以上の周波数範囲で変化させる請求項３または４に記載の点灯回路。   The lighting circuit according to claim 3 or 4, wherein the control circuit changes the frequency of the control signal in a frequency range of 20 KHz or more. 一次巻線および前記一次巻線と極性向きが反対である二次巻線とを備えた絶縁トランスと、一端が前記一次巻線に接続し他端が接地され前記一端と前記他端との間のスイッチングのための制御端子を備えるスイッチング素子と、を含むフライバックコンバータ回路と、
前記制御端子に制御信号を供給し、前記制御信号のオン時間を固定値とし前記制御信号の周波数を変化させる制御回路と、
を備える点灯回路。 An insulating transformer having a primary winding and a secondary winding having a polarity opposite to that of the primary winding, and one end connected to the primary winding and the other end grounded, between the one end and the other end A flyback converter circuit including a switching element having a control terminal for switching
A control circuit for supplying a control signal to the control terminal, and changing a frequency of the control signal with an on-time of the control signal as a fixed value;
A lighting circuit comprising: 前記制御回路は、前記制御信号の周波数を１７０ＫＨｚ以下の周波数範囲で変化させる請求項６に記載の点灯回路。   The lighting circuit according to claim 6, wherein the control circuit changes the frequency of the control signal in a frequency range of 170 KHz or less. 前記制御回路は、前記制御信号の周波数を２０ＫＨｚ以上の周波数範囲で変化させる請求項６または７に記載の点灯回路。   The lighting circuit according to claim 6 or 7, wherein the control circuit changes a frequency of the control signal in a frequency range of 20 KHz or more. 周波数を変化させた前記制御信号を周波数変調信号として用いる請求項１〜８のいずれか１項に記載の点灯回路。   The lighting circuit according to claim 1, wherein the control signal whose frequency is changed is used as a frequency modulation signal. 発光素子と、
前記発光素子を点灯させる点灯回路と、
を備え、
前記点灯回路は、
一次巻線および前記一次巻線と極性向きが反対である二次巻線とを備えた絶縁トランスと、一端が前記一次巻線に接続し他端が接地され前記一端と前記他端との間のスイッチングのための制御端子を備えるスイッチング素子と、を含むフライバックコンバータ回路と、
前記制御端子に制御信号を供給し、前記制御信号の周波数を増加させたらオン時間を減少させ前記制御信号の周波数を減少させたら前記オン時間を増加させるように前記制御信号を変化させる制御回路と、
を備える照明器具。 A light emitting element;
A lighting circuit for lighting the light emitting element;
With
The lighting circuit is
An insulating transformer having a primary winding and a secondary winding having a polarity opposite to that of the primary winding, and one end connected to the primary winding and the other end grounded, between the one end and the other end A flyback converter circuit including a switching element having a control terminal for switching
Supplies a control signal to the control terminal, and a control circuit for changing said control signal so as to increase the on-time After reducing the frequency of the control signal to reduce the on-time After increasing the frequency of the control signal ,
A lighting fixture comprising: 発光素子と、
前記発光素子を点灯させる点灯回路と、
を備え、
前記点灯回路は、
一次巻線および前記一次巻線と極性向きが反対である二次巻線とを備えた絶縁トランスと、一端が前記一次巻線に接続し他端が接地され前記一端と前記他端との間のスイッチングのための制御端子を備えるスイッチング素子と、を含むフライバックコンバータ回路と、
前記制御端子に制御信号を供給し、前記制御信号のオン時間を固定値とし前記制御信号の周波数を変化させる制御回路と、
を備える照明器具。 A light emitting element;
A lighting circuit for lighting the light emitting element;
With
The lighting circuit is
An insulating transformer having a primary winding and a secondary winding having a polarity opposite to that of the primary winding, and one end connected to the primary winding and the other end grounded, between the one end and the other end A flyback converter circuit including a switching element having a control terminal for switching
A control circuit for supplying a control signal to the control terminal, and changing a frequency of the control signal with an on-time of the control signal as a fixed value;
A lighting fixture comprising:
JP2014012580A 2014-01-27 2014-01-27 lighting equipment Active JP6273863B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2014012580A JP6273863B2 (en) 2014-01-27 2014-01-27 lighting equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014012580A JP6273863B2 (en) 2014-01-27 2014-01-27 lighting equipment

Publications (3)

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JP2015141756A JP2015141756A (en) 2015-08-03
JP2015141756A5 true JP2015141756A5 (en) 2017-03-02
JP6273863B2 JP6273863B2 (en) 2018-02-07

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111182676B (en) 2018-11-08 2021-07-09 台达电子企业管理（上海）有限公司 Dimming circuit and dimming control method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5230181B2 (en) * 2007-12-07 2013-07-10 パナソニック株式会社 Energy transfer device and semiconductor device for energy transfer control
JP5660656B2 (en) * 2009-10-27 2015-01-28 パナソニックＩｐマネジメント株式会社 Power supply device, lighting device, and power measurement system
JP5884050B2 (en) * 2011-12-05 2016-03-15 パナソニックＩｐマネジメント株式会社 Lighting device and lighting apparatus provided with the same
JP5988202B2 (en) * 2012-07-04 2016-09-07 パナソニックＩｐマネジメント株式会社 Lighting device and lighting device using the same

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