JP5812394B2 - Ｐｗｍ調光制御を具備するｌｅｄシステム又はその他の負荷に対するインダクタ予備充電を具備する駆動システム - Google Patents

Ｐｗｍ調光制御を具備するｌｅｄシステム又はその他の負荷に対するインダクタ予備充電を具備する駆動システム Download PDF

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JP5812394B2
JP5812394B2 JP2011115369A JP2011115369A JP5812394B2 JP 5812394 B2 JP5812394 B2 JP 5812394B2 JP 2011115369 A JP2011115369 A JP 2011115369A JP 2011115369 A JP2011115369 A JP 2011115369A JP 5812394 B2 JP5812394 B2 JP 5812394B2
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control signal
current
led
power supply
controller
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JP2011249328A5 (enExample
JP2011249328A (ja
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ウォン リク−キン
ウォン リク−キン
マン ツェ−カウ
マン ツェ−カウ
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National Semiconductor Corp
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National Semiconductor Corp
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/40—Details of LED load circuits
    • H05B45/44—Details of LED load circuits with an active control inside an LED matrix
    • H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/32—Pulse-control circuits
    • H05B45/325—Pulse-width modulation [PWM]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/38—Switched mode power supply [SMPS] using boost topology
    • 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
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

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  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Dc-Dc Converters (AREA)
  • Led Devices (AREA)
JP2011115369A 2010-05-25 2011-05-24 Ｐｗｍ調光制御を具備するｌｅｄシステム又はその他の負荷に対するインダクタ予備充電を具備する駆動システム Active JP5812394B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/800,875 2010-05-25
US12/800,875 US8294388B2 (en) 2010-05-25 2010-05-25 Driving system with inductor pre-charging for LED systems with PWM dimming control or other loads

Publications (3)

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JP2011249328A JP2011249328A (ja) 2011-12-08
JP2011249328A5 JP2011249328A5 (enExample) 2014-06-19
JP5812394B2 true JP5812394B2 (ja) 2015-11-11

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US (1) US8294388B2 (enExample)
JP (1) JP5812394B2 (enExample)
CN (1) CN102264180B (enExample)
TW (1) TWI565361B (enExample)

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US20110291576A1 (en) 2011-12-01
TW201204177A (en) 2012-01-16
TWI565361B (zh) 2017-01-01
US8294388B2 (en) 2012-10-23
CN102264180B (zh) 2015-07-01
CN102264180A (zh) 2011-11-30
JP2011249328A (ja) 2011-12-08

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