TW200603524A - The current limited protection circuit of switching power converter - Google Patents

The current limited protection circuit of switching power converter

Info

Publication number
TW200603524A
TW200603524A TW093120610A TW93120610A TW200603524A TW 200603524 A TW200603524 A TW 200603524A TW 093120610 A TW093120610 A TW 093120610A TW 93120610 A TW93120610 A TW 93120610A TW 200603524 A TW200603524 A TW 200603524A
Authority
TW
Taiwan
Prior art keywords
circuit
voltage
current limited
limited protection
amplifier
Prior art date
Application number
TW093120610A
Other languages
Chinese (zh)
Other versions
TWI268040B (en
Inventor
Jiaun-Long Lin
Yen-Huang Leei
Jen-Chi Lo
Original Assignee
Chung Shan Inst Of Science
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 Chung Shan Inst Of Science filed Critical Chung Shan Inst Of Science
Priority to TW93120610A priority Critical patent/TWI268040B/en
Publication of TW200603524A publication Critical patent/TW200603524A/en
Application granted granted Critical
Publication of TWI268040B publication Critical patent/TWI268040B/en

Links

Landscapes

  • Dc-Dc Converters (AREA)
  • Protection Of Static Devices (AREA)
  • Amplifiers (AREA)

Abstract

A power converter with switching type has a switch, pulse width modulation( PWM) circuit, a rectifying filter circuit and current limited protection circuit. Wherein, the input of the rectifying filter is coupled to an input voltage through the switch. In the current limited protection circuit, there are an amplifier and a PWM circuit. The amplifier is applied to detect a conductive voltage, which is generated when a work current flows to pass through the rectifying filter, and the amplifier amplifies the conductive voltage to generate a comparing voltage. The PWM circuit receives the output of the amplifier, and determines the output of the PWM circuit based on a result of comparing between the comparing voltage and a reference voltage. The switch is determined whether current limited protection activating (pulse-by-pulse mode) on or not based on the output of the PWM circuit.
TW93120610A 2004-07-09 2004-07-09 The current limited protection circuit of switching power converter TWI268040B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW93120610A TWI268040B (en) 2004-07-09 2004-07-09 The current limited protection circuit of switching power converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW93120610A TWI268040B (en) 2004-07-09 2004-07-09 The current limited protection circuit of switching power converter

Publications (2)

Publication Number Publication Date
TW200603524A true TW200603524A (en) 2006-01-16
TWI268040B TWI268040B (en) 2006-12-01

Family

ID=38220528

Family Applications (1)

Application Number Title Priority Date Filing Date
TW93120610A TWI268040B (en) 2004-07-09 2004-07-09 The current limited protection circuit of switching power converter

Country Status (1)

Country Link
TW (1) TWI268040B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI662778B (en) * 2017-12-29 2019-06-11 技嘉科技股份有限公司 Power Supply Having Adjustable Power Output Limitation And Method for Adjusting Power Output Limitation
US10928844B2 (en) 2018-10-09 2021-02-23 Pegatron Corporation Electronic device and power supply module thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI662778B (en) * 2017-12-29 2019-06-11 技嘉科技股份有限公司 Power Supply Having Adjustable Power Output Limitation And Method for Adjusting Power Output Limitation
US10928844B2 (en) 2018-10-09 2021-02-23 Pegatron Corporation Electronic device and power supply module thereof

Also Published As

Publication number Publication date
TWI268040B (en) 2006-12-01

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