TW200743291A - Power supply - Google Patents
Power supplyInfo
- Publication number
- TW200743291A TW200743291A TW096114576A TW96114576A TW200743291A TW 200743291 A TW200743291 A TW 200743291A TW 096114576 A TW096114576 A TW 096114576A TW 96114576 A TW96114576 A TW 96114576A TW 200743291 A TW200743291 A TW 200743291A
- Authority
- TW
- Taiwan
- Prior art keywords
- available
- system power
- power supply
- node
- switch
- Prior art date
Links
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Direct Current Feeding And Distribution (AREA)
- Stand-By Power Supply Arrangements (AREA)
- Electric Clocks (AREA)
Abstract
A power supply is described. The power supply provides power to a real-time clock generator when system power is not available and comprises first and second regulators, an energy storage device, and a switch. The first regulator receives a system power and generates a first regulated voltage when the system power is available. The energy storage device is coupled to a node. The second regulator comprises an input coupled to the node and provides a second regulated voltage to a real-time clock generator. The switch is coupled between the first regulator and the node. The switch is turned on when the system power is available and turned off when the system power is not available.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US74617506P | 2006-05-02 | 2006-05-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200743291A true TW200743291A (en) | 2007-11-16 |
TWI346438B TWI346438B (en) | 2011-08-01 |
Family
ID=38937894
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW096114576A TWI346438B (en) | 2006-05-02 | 2007-04-25 | Power supply |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN100527563C (en) |
TW (1) | TWI346438B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104348248A (en) * | 2013-07-24 | 2015-02-11 | 纬创资通股份有限公司 | Starting circuit and electronic device |
TWI555305B (en) * | 2015-09-18 | 2016-10-21 | Univ Nat Taipei Technology | Power supply and its batteries for charging and discharging methods |
CN113110665A (en) * | 2020-01-09 | 2021-07-13 | 联发科技股份有限公司 | Low dropout voltage regulator |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102064677B (en) * | 2009-11-12 | 2014-12-03 | 立锜科技股份有限公司 | Control circuit for adjusting driving voltage in power converter |
CN102006532B (en) * | 2010-10-09 | 2014-07-02 | 昆腾微电子股份有限公司 | Power supply equipment, processing chip for digital microphone and digital microphone |
CN103259328B (en) * | 2013-05-15 | 2015-04-22 | 西北工业大学 | Continuous direct current power supply system |
TWI633733B (en) | 2017-04-18 | 2018-08-21 | 立積電子股份有限公司 | Power supply and method for operating a power supply |
-
2007
- 2007-04-25 TW TW096114576A patent/TWI346438B/en active
- 2007-04-30 CN CNB2007101077918A patent/CN100527563C/en active Active
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104348248A (en) * | 2013-07-24 | 2015-02-11 | 纬创资通股份有限公司 | Starting circuit and electronic device |
TWI555305B (en) * | 2015-09-18 | 2016-10-21 | Univ Nat Taipei Technology | Power supply and its batteries for charging and discharging methods |
CN113110665A (en) * | 2020-01-09 | 2021-07-13 | 联发科技股份有限公司 | Low dropout voltage regulator |
TWI751826B (en) * | 2020-01-09 | 2022-01-01 | 聯發科技股份有限公司 | Low dropout regulator |
US11526186B2 (en) | 2020-01-09 | 2022-12-13 | Mediatek Inc. | Reconfigurable series-shunt LDO |
Also Published As
Publication number | Publication date |
---|---|
CN100527563C (en) | 2009-08-12 |
CN101087071A (en) | 2007-12-12 |
TWI346438B (en) | 2011-08-01 |
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