TW200629328A - Dead-time-modulated synchronous PWM controller for dimmable CCFL Royer inverter - Google Patents

Dead-time-modulated synchronous PWM controller for dimmable CCFL Royer inverter

Info

Publication number
TW200629328A
TW200629328A TW094103474A TW94103474A TW200629328A TW 200629328 A TW200629328 A TW 200629328A TW 094103474 A TW094103474 A TW 094103474A TW 94103474 A TW94103474 A TW 94103474A TW 200629328 A TW200629328 A TW 200629328A
Authority
TW
Taiwan
Prior art keywords
dead
time
pwm
dtm
royer inverter
Prior art date
Application number
TW094103474A
Other languages
Chinese (zh)
Other versions
TWI263240B (en
Inventor
Guan-Chyun Hsieh
Original Assignee
Univ Nat Taiwan Science Tech
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Univ Nat Taiwan Science Tech filed Critical Univ Nat Taiwan Science Tech
Priority to TW94103474A priority Critical patent/TWI263240B/en
Publication of TW200629328A publication Critical patent/TW200629328A/en
Application granted granted Critical
Publication of TWI263240B publication Critical patent/TWI263240B/en

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  • Dc-Dc Converters (AREA)
  • Inverter Devices (AREA)

Abstract

Synchronous PWM controller achieved by dead-time modulation is explored for self-oscillation Royer inverter. The dead-time-modulated PWM (DTM-PWM) controller is composed of a monostable circuit and a constant-current charger (CCC). The presented switching period for buck regulation consists of a referred sawtooth with constant-period and a dead-time. The synchronizing strategy is conducted by modulating the dead-time according to the resonant frequency of the Royer inverter. Two kinds of the control strategies in DTM-PWM controller are explored including down-going and up-going error voltage controls. A DTM-PWM controlled dimmable Royer inverter with two-CCFL by primary-side control is designed and realized. Two kinds of the used controllers for Royer inverter are also experimented and compared with the proposed DTM-PWM controller. The results of analysis and theoretical prediction are verified with experiments.
TW94103474A 2005-02-03 2005-02-03 Dead-time-modulated synchronous PWM controller for dimmable CCFL Royer inverter TWI263240B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW94103474A TWI263240B (en) 2005-02-03 2005-02-03 Dead-time-modulated synchronous PWM controller for dimmable CCFL Royer inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW94103474A TWI263240B (en) 2005-02-03 2005-02-03 Dead-time-modulated synchronous PWM controller for dimmable CCFL Royer inverter

Publications (2)

Publication Number Publication Date
TW200629328A true TW200629328A (en) 2006-08-16
TWI263240B TWI263240B (en) 2006-10-01

Family

ID=37966306

Family Applications (1)

Application Number Title Priority Date Filing Date
TW94103474A TWI263240B (en) 2005-02-03 2005-02-03 Dead-time-modulated synchronous PWM controller for dimmable CCFL Royer inverter

Country Status (1)

Country Link
TW (1) TWI263240B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112738946A (en) * 2019-10-15 2021-04-30 松下知识产权经营株式会社 Lighting circuit and synchronization method thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101523978B (en) * 2006-11-03 2011-04-06 奥斯兰姆有限公司 A circuit for driving light sources and related method
TWI458393B (en) * 2010-08-10 2014-10-21 On Bright Electronics Shanghai Systems and methods for controlling brightness of cold-cathode fluorescent lamps with wide dimming range and adjustable minimum brightness

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112738946A (en) * 2019-10-15 2021-04-30 松下知识产权经营株式会社 Lighting circuit and synchronization method thereof

Also Published As

Publication number Publication date
TWI263240B (en) 2006-10-01

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Legal Events

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MM4A Annulment or lapse of patent due to non-payment of fees