TW201130213A - Power converter, controller for controlling a transformer and method thereof - Google Patents
Power converter, controller for controlling a transformer and method thereofInfo
- Publication number
- TW201130213A TW201130213A TW99105546A TW99105546A TW201130213A TW 201130213 A TW201130213 A TW 201130213A TW 99105546 A TW99105546 A TW 99105546A TW 99105546 A TW99105546 A TW 99105546A TW 201130213 A TW201130213 A TW 201130213A
- Authority
- TW
- Taiwan
- Prior art keywords
- period
- transformer
- power converter
- discharging
- controller
- Prior art date
Links
Abstract
A power converter includes a transformer operated in multiple switching cycles. At least one switching cycle includes a charging period, a discharging period, and an adjusting period. The transformer has a primary winding coupled to a power source and a secondary winding coupled to a load. During the charging period the transformer is powered by the power source and a current flowing through the primary winding increases. During the discharging period the transformer discharges to power the load and a current flowing through the secondary winding decreases. A ratio of duration of the discharging period to a total duration of the charging period, the discharging period and the adjusting period is constant.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW99105546A TWI399910B (en) | 2010-02-26 | 2010-02-26 | Power converter, controller for controlling a transformer and method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW99105546A TWI399910B (en) | 2010-02-26 | 2010-02-26 | Power converter, controller for controlling a transformer and method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
TW201130213A true TW201130213A (en) | 2011-09-01 |
TWI399910B TWI399910B (en) | 2013-06-21 |
Family
ID=49030134
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW99105546A TWI399910B (en) | 2010-02-26 | 2010-02-26 | Power converter, controller for controlling a transformer and method thereof |
Country Status (1)
Country | Link |
---|---|
TW (1) | TWI399910B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI505611B (en) * | 2012-02-21 | 2015-10-21 | O2Micro Int Ltd | Controller, power converter for controlling transformer, and load driving circuit thereof |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7394209B2 (en) * | 2004-02-11 | 2008-07-01 | 02 Micro International Limited | Liquid crystal display system with lamp feedback |
US8045344B2 (en) * | 2007-04-23 | 2011-10-25 | Active-Semi, Inc. | Regulating output current from a primary side power converter by clamping an error signal |
-
2010
- 2010-02-26 TW TW99105546A patent/TWI399910B/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI505611B (en) * | 2012-02-21 | 2015-10-21 | O2Micro Int Ltd | Controller, power converter for controlling transformer, and load driving circuit thereof |
Also Published As
Publication number | Publication date |
---|---|
TWI399910B (en) | 2013-06-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |