TWI229492B - Method for adjusting the output voltage of simultaneously switched DC converter along with the variation of load - Google Patents

Method for adjusting the output voltage of simultaneously switched DC converter along with the variation of load Download PDF

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Publication number
TWI229492B
TWI229492B TW90114679A TW90114679A TWI229492B TW I229492 B TWI229492 B TW I229492B TW 90114679 A TW90114679 A TW 90114679A TW 90114679 A TW90114679 A TW 90114679A TW I229492 B TWI229492 B TW I229492B
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TW
Taiwan
Prior art keywords
output voltage
load
variation
adjusting
current
Prior art date
Application number
TW90114679A
Other languages
Chinese (zh)
Inventor
Liang-Pin Tai
Hung-I Wang
Original Assignee
Richtek Technology Corp
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Publication date
Application filed by Richtek Technology Corp filed Critical Richtek Technology Corp
Priority to TW90114679A priority Critical patent/TWI229492B/en
Application granted granted Critical
Publication of TWI229492B publication Critical patent/TWI229492B/en

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Abstract

A method for adjusting the output voltage of simultaneously switched DC converter along with the variation of load comprises: using a current sensing circuit to detect a variation of the load current of a simultaneously switched DC converter in order to generate a current sensing signal; using the signal to obtain a level voltage input to a pulse width modulation loop; and adjusting the peak-to-peak value of the output voltage according to the output voltage and the level voltage by the pulse width modulation loop in order to limit the value in a tolerable range of the load without generating excessive peak-to-peak ripples by the output voltage. Furthermore, the current sensing circuit outputs the current sensing signal in an average continuous waveform in order for the sample waveform of the sensing current to be closer to the load current, thereby achieving a more accurate voltage reduction adjustment.

Description

1229492 案號 90114679 年月曰 更正1229492 Case No. 90114679 Correction

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1229492 * 案號 90114679 年月日 更正1229492 * Case No. 90114679 Correction

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TW90114679A 2001-06-15 2001-06-15 Method for adjusting the output voltage of simultaneously switched DC converter along with the variation of load TWI229492B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW90114679A TWI229492B (en) 2001-06-15 2001-06-15 Method for adjusting the output voltage of simultaneously switched DC converter along with the variation of load

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW90114679A TWI229492B (en) 2001-06-15 2001-06-15 Method for adjusting the output voltage of simultaneously switched DC converter along with the variation of load

Publications (1)

Publication Number Publication Date
TWI229492B true TWI229492B (en) 2005-03-11

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Application Number Title Priority Date Filing Date
TW90114679A TWI229492B (en) 2001-06-15 2001-06-15 Method for adjusting the output voltage of simultaneously switched DC converter along with the variation of load

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TW (1) TWI229492B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI495977B (en) * 2013-12-11 2015-08-11 Ind Tech Res Inst Power device for variable speed fan groups with energy management

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI495977B (en) * 2013-12-11 2015-08-11 Ind Tech Res Inst Power device for variable speed fan groups with energy management

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