TW200726047A - Controller having output current control for a power converter - Google Patents

Controller having output current control for a power converter

Info

Publication number
TW200726047A
TW200726047A TW094146952A TW94146952A TW200726047A TW 200726047 A TW200726047 A TW 200726047A TW 094146952 A TW094146952 A TW 094146952A TW 94146952 A TW94146952 A TW 94146952A TW 200726047 A TW200726047 A TW 200726047A
Authority
TW
Taiwan
Prior art keywords
signal
switching
power converter
output current
circuit
Prior art date
Application number
TW094146952A
Other languages
Chinese (zh)
Other versions
TWI377774B (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 TW94146952A priority Critical patent/TWI377774B/en
Publication of TW200726047A publication Critical patent/TW200726047A/en
Application granted granted Critical
Publication of TWI377774B publication Critical patent/TWI377774B/en

Links

Abstract

The present invention provides a controller to control an output current by controlling a switching current of a power converter. The controller comprises a first circuit to generate a first signal in response to the switching current of a transformer of the power converter. A second circuit is coupled to the transformer to generate a second signal in response to a discharging time of the transformer. A third circuit is used for generating a third signal by integrating the first signal with the second signal. A switching circuit generates a switching signal in response to the third signal and a reference voltage, in which the switching signal is used to switch the transformer and regulates the output current of the power converter. In order to achieve a precisely output current control, a time constant of the third circuit is designed to correlate to the switching frequency of the switching signal.
TW94146952A 2005-12-28 2005-12-28 Controller having output current control for a power converter TWI377774B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW94146952A TWI377774B (en) 2005-12-28 2005-12-28 Controller having output current control for a power converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW94146952A TWI377774B (en) 2005-12-28 2005-12-28 Controller having output current control for a power converter

Publications (2)

Publication Number Publication Date
TW200726047A true TW200726047A (en) 2007-07-01
TWI377774B TWI377774B (en) 2012-11-21

Family

ID=48087833

Family Applications (1)

Application Number Title Priority Date Filing Date
TW94146952A TWI377774B (en) 2005-12-28 2005-12-28 Controller having output current control for a power converter

Country Status (1)

Country Link
TW (1) TWI377774B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8654265B2 (en) 2010-01-29 2014-02-18 Mstar Semiconductor, Inc. Touch display panel and associated method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI444054B (en) 2009-06-03 2014-07-01 Mstar Semiconductor Inc De-pop controller and method
CN105450052B (en) 2014-08-20 2018-03-30 台达电子工业股份有限公司 Converter, controller and control method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8654265B2 (en) 2010-01-29 2014-02-18 Mstar Semiconductor, Inc. Touch display panel and associated method

Also Published As

Publication number Publication date
TWI377774B (en) 2012-11-21

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