TW200715698A - High efficiency buck converter - Google Patents

High efficiency buck converter

Info

Publication number
TW200715698A
TW200715698A TW094135732A TW94135732A TW200715698A TW 200715698 A TW200715698 A TW 200715698A TW 094135732 A TW094135732 A TW 094135732A TW 94135732 A TW94135732 A TW 94135732A TW 200715698 A TW200715698 A TW 200715698A
Authority
TW
Taiwan
Prior art keywords
signal
power
buck converter
saving
switching
Prior art date
Application number
TW094135732A
Other languages
Chinese (zh)
Other versions
TWI291801B (en
Inventor
Ta-Yung Yang
Original Assignee
System General Corp
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 System General Corp filed Critical System General Corp
Priority to TW94135732A priority Critical patent/TWI291801B/en
Publication of TW200715698A publication Critical patent/TW200715698A/en
Application granted granted Critical
Publication of TWI291801B publication Critical patent/TWI291801B/en

Links

Landscapes

  • Dc-Dc Converters (AREA)

Abstract

A high efficiency buck converter has power-saving means to improve the efficiency under both heavy load and light load conditions. A first circuit generates an oscillation signal and a power-saving signal in response to a feedback signal. In reference to the feedback signal and the oscillation signal, a second circuit generates switching signals to control switching devices. An off-time of the switching signal increases in response to a decrement of load. The power-saving signal turns off the switching devices and parts of control circuits of the buck converter during the off time of the switching signal for saving power under light load conditions.
TW94135732A 2005-10-13 2005-10-13 High efficiency buck converter TWI291801B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW94135732A TWI291801B (en) 2005-10-13 2005-10-13 High efficiency buck converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW94135732A TWI291801B (en) 2005-10-13 2005-10-13 High efficiency buck converter

Publications (2)

Publication Number Publication Date
TW200715698A true TW200715698A (en) 2007-04-16
TWI291801B TWI291801B (en) 2007-12-21

Family

ID=39461285

Family Applications (1)

Application Number Title Priority Date Filing Date
TW94135732A TWI291801B (en) 2005-10-13 2005-10-13 High efficiency buck converter

Country Status (1)

Country Link
TW (1) TWI291801B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI405062B (en) * 2007-07-27 2013-08-11 Ricoh Co Ltd Switching regulator and method for controlling operation thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI405062B (en) * 2007-07-27 2013-08-11 Ricoh Co Ltd Switching regulator and method for controlling operation thereof

Also Published As

Publication number Publication date
TWI291801B (en) 2007-12-21

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