TW200629328A - Dead-time-modulated synchronous PWM controller for dimmable CCFL Royer inverter - Google Patents
Dead-time-modulated synchronous PWM controller for dimmable CCFL Royer inverterInfo
- 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
Links
Landscapes
- 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.
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)
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)
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 |
-
2005
- 2005-02-03 TW TW94103474A patent/TWI263240B/en not_active IP Right Cessation
Cited By (1)
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
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |