JP2014113038A - フライバックコンバータの方法 - Google Patents
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
- H02M3/33523—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters with galvanic isolation between input and output of both the power stage and the feedback loop
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
- H02M3/33515—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters with digital control
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33538—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only of the forward type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33538—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only of the forward type
- H02M3/33546—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only of the forward type with automatic control of the output voltage or current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33538—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only of the forward type
- H02M3/33546—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only of the forward type with automatic control of the output voltage or current
- H02M3/33553—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only of the forward type with automatic control of the output voltage or current with galvanic isolation between input and output of both the power stage and the feedback loop
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Abstract
【解決手段】フライバックコンバータは、電源12、整流器、変圧器、出力検出回路、光カプラDOPTO1とDOPTO2、制御器10、電流検出抵抗Rs、およびスイッチングトランジスタQを含み、交流電源12からの交流電圧Vinを直流電圧Voutに変換し出力する。直流電圧Voutを帰還信号として検出し、光カプラDOPTO1とDOPTO2を介して変圧器の二次回路から変圧器の一次回路に伝達し、フィードバック制御する。電流検出抵抗Rsで検出した一次電流の電流制限と、スイッチング周波数とを、直流電圧Voutの検出値に応じて増加させる。
【選択図】図1
Description
サージ負荷状態の間に、スイッチング周波数を増加し、変圧器の一次側ピーク電流を制限することによって、かさばる変圧器を用いてサージ負荷状態でのコアの飽和を避けるのが必要でなくなる。
2、3、4 制御方式
6、7、8、9 制御方法
10 制御器
12 電源
W1 一次巻線
W2 二次巻線
Waux 補助巻線
Rs 検出レジスタ
DOPTO1、DOPTO2 光カプラ
Q スイッチングトランジスタ
IP 一次電流
IS 二次電流
20 スイッチング周波数曲線
22 Vcs制限曲線
30 スイッチング周波数曲線
32a、b、c Vcs制限曲線
IP,peak ピーク電流波形電流
IP,AVG 平均電流波形電流
IS,AVG 二次平均出力電流
SPWM PWM信号
Vout 出力電圧
Vdiv 分圧
T1 シャントレギュレータ
Vcs 検出電圧
Vcs_lim1、Vcs_lim 検出電圧制限
Vcs_max 最大電圧制限
VFB_b ベースのフィードバック電圧
Vctlp ピーク電力モード電圧
Vcp 制御電圧制限
Vfp スイッチング周波数制限
VFB フィードバック電圧
Fsw スイッチング周波数
Claims (15)
- 変圧器を含むフライバックコンバータの回路に用いられる方法であって、
前記変圧器の二次回路から出力された出力電圧を決定するステップ、
前記出力電圧に基づくフィードバック電圧を前記二次回路から前記変圧器の一次回路に戻して供給するステップ、
一次電流の電流制限とスイッチング周波数を前記フィードバック電圧とともに増加させるステップ、および
前記一次電流を前記変圧器の前記一次巻線に供給するステップを含む方法。 - 前記フィードバック電圧が第1のしきい値電圧より小さい時、前記電流制限を前記出力電圧とともに増加しながら、実質的に一定となるようにスイッチング周波数を維持することを更に含む請求項1に記載の方法。
- 前記増加のステップは、前記フィードバック電圧が第1のしきい値電圧を超えた時、前記一次電流の前記電流制限と前記スイッチング周波数を前記フィードバック電圧とともに増加させることを含む請求項2に記載の方法。
- 前記フィードバック電圧が第2のしきい値電圧を超えた時、前記スイッチング周波数を前記フィードバック電圧とともに増加しながら、実質的に一定となるように前記電流制限を維持することを更に含み、
前記第2のしきい値電圧は、前記第1のしきい値電圧を超える請求項2に記載の方法。 - 前記フィードバック電圧が第3のしきい値電圧を超えた時、実質的に一定となるように前記電流制限と前記スイッチング周波数の両方を維持することを更に含み、
前記第3のしきい値電圧は、前記第2のしきい値電圧を超える請求項4に記載の方法。 - 前記フィードバック電圧が第4のしきい値電圧を超えた時、前記電流制限を一定の過負荷電流に減少することを更に含み、
前記第4のしきい値電圧は、前記第3のしきい値電圧を超え、且つ前記一定の過負荷電流は、前記実質的に一定の電流制限より小さい請求項5に記載の方法。 - 前記フィードバック電圧が前記第1のしきい値電圧を超えた時、前記フィードバック電圧が第1のしきい値電圧より小さいと決定された時の前記増加された電流制限のレートと実質的に同等のレートで、前記電流制限を増加させる請求項2に記載の方法。
- 前記増加のステップは、前記フィードバック電圧が前記第1のしきい値電圧を超えたと決定された時、適応レートで前記電流制限を増加させることを含む請求項2に記載の方法。
- 変圧器を含むフライバックコンバータの回路に用いられる方法であって、
前記変圧器の二次回路から出力された出力電圧を決定するステップ、
前記出力電圧に基づくフィードバック電圧を前記二次回路から前記変圧器の一次回路に戻して供給するステップ、
第1の固定レートによって、一次電流のスイッチング周波数を前記フィードバック電圧とともに増加させるステップ、
適応レートによって、前記一次電流の電流制限を前記フィードバック電圧とともに増加させるステップ、および
前記一次電流を前記変圧器の前記一次巻線に供給するステップを含む方法。 - 前記フィードバック電圧が第1のしきい値電圧より小さい時、第2の固定レートによって前記電流制限を前記フィードバック電圧とともに増加しながら、実質的に一定となるようにスイッチング周波数を維持することを更に含み、
前記増加のステップは、前記フィードバック電圧が第1のしきい値電圧を超えた時、前記適応レートによって前記一次電流の前記電流制限を前記フィードバック電圧とともに増加させることを含む請求項9に記載の方法。 - 前記適応レートが前記第2の固定レートより小さくなるように、前記第2の固定レートを超えるように、または前記第2の固定レートと実質的に同等であるように調整することを更に含む請求項10に記載の方法。
- 変圧器を含むフライバックコンバータの回路に用いられる方法であって、
前記変圧器の二次回路から出力された出力電圧を決定するステップ、
前記出力電圧に基づくフィードバック電圧を前記二次回路から前記変圧器の一次回路に戻して供給するステップ、
一次電流の電流制限とスイッチング周波数を前記フィードバック電圧とともに増加させるステップ、
前記一次電流を前記変圧器の前記一次巻線に供給するステップ、および
前記フィードバック電圧が短絡しきい値電圧を超えた時、前記電流制限を実質的に一定の過負荷電流に減少するステップを含み、
前記実質的に一定の過負荷電流は、前記一次電流の最大電流制限より小さい方法。 - 前記フィードバック電圧が第1のしきい値電圧より小さい時、固定レートによって前記電流制限を前記フィードバック電圧とともに増加しながら、実質的に一定となるように前記スイッチング周波数を維持するステップを更に含み、
前記増加のステップは、前記フィードバック電圧が前記第1のしきい値電圧を超えた時、前記適応レートによって前記一次電流の前記電流制限と前記スイッチング周波数を前記フィードバック電圧とともに増加させることを含み、且つ
前記第1のしきい値電圧は、前記短絡しきい値電圧より小さい請求項12に記載の方法。 - 前記増加のステップは、前記フィードバック電圧が前記第1のしきい値電圧を超えた時、前記フィードバック電圧が第1のしきい値電圧より小さい時の前記増加された電流制限のレートと実質的に同等のレートで、前記電流制限を増加させる請求項12に記載の方法。
- 前記増加ステップは、前記フィードバック電圧が前記第1のしきい値電圧を超えた時、適応レートで前記電流制限を増加させるステップを含む請求項14に記載の方法。
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JP6402610B2 (ja) * | 2014-12-03 | 2018-10-10 | 富士電機株式会社 | スイッチング電源装置、スイッチング電源装置の制御方法およびスイッチング電源装置の制御回路 |
TWI555315B (zh) * | 2015-04-28 | 2016-10-21 | 力林科技股份有限公司 | 電源供應裝置及電源處理方法 |
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US20140133193A1 (en) | 2014-05-15 |
CN103944391A (zh) | 2014-07-23 |
TWI504121B (zh) | 2015-10-11 |
ES2870571T3 (es) | 2021-10-27 |
CN103944391B (zh) | 2017-10-13 |
US9369047B2 (en) | 2016-06-14 |
TW201419740A (zh) | 2014-05-16 |
JP5973410B2 (ja) | 2016-08-23 |
EP2731247B1 (en) | 2021-03-17 |
EP2731247A1 (en) | 2014-05-14 |
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