Presentation 2012-07-26
Advancing of Control Method of DC-DC Converter for Low Voltage and Fast Load Transient of LSI : From Linear Control to Non-linear Control
Toshiyuki Zaitsu,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Recently, not only note book computer, but also mobile device, DTV, game device are using CPU, GPU and fast speed memory. So, DC-DC is required to fast load transient response. Conventional linear control such voltage mode or current mode control has limitation of response speed due to delay from PWM and compensation circuit. Non-linear control such hysteretic control has been attractive due to its ultra fast response capability. Hysteretic control has some disadvantage such that can not operates with ceramic capacitor due to too small ripple at output. However, ripple injection method and its frequency domain analysis could make optimal design. Now advanced hysteretic control become very popular and widely used in the world.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) DC-DC converter / Fast transient response / Non-linear control / Hysteretic control / ripple injection / frequency domain analysis / Fixed-on time with bottom detection
Paper # ICD2012-22
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Conference Information
Committee ICD
Conference Date 2012/7/19(1days)
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Paper Information
Registration To Integrated Circuits and Devices (ICD)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Advancing of Control Method of DC-DC Converter for Low Voltage and Fast Load Transient of LSI : From Linear Control to Non-linear Control
Sub Title (in English)
Keyword(1) DC-DC converter
Keyword(2) Fast transient response
Keyword(3) Non-linear control
Keyword(4) Hysteretic control
Keyword(5) ripple injection
Keyword(6) frequency domain analysis
Keyword(7) Fixed-on time with bottom detection
1st Author's Name Toshiyuki Zaitsu
1st Author's Affiliation Texas Instruments Japan Limited()
Date 2012-07-26
Paper # ICD2012-22
Volume (vol) vol.112
Number (no) 159
Page pp.pp.-
#Pages 6
Date of Issue