TW201614918A - Power supply apparatus with over power protection function - Google Patents

Power supply apparatus with over power protection function

Info

Publication number
TW201614918A
TW201614918A TW103135146A TW103135146A TW201614918A TW 201614918 A TW201614918 A TW 201614918A TW 103135146 A TW103135146 A TW 103135146A TW 103135146 A TW103135146 A TW 103135146A TW 201614918 A TW201614918 A TW 201614918A
Authority
TW
Taiwan
Prior art keywords
voltage
detection circuit
superposition
supply apparatus
power supply
Prior art date
Application number
TW103135146A
Other languages
Chinese (zh)
Other versions
TWI568119B (en
Inventor
Tso-Jen Peng
Ssu-Hao Wang
Original Assignee
Chicony Power Tech Co Ltd
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 Chicony Power Tech Co Ltd filed Critical Chicony Power Tech Co Ltd
Priority to TW103135146A priority Critical patent/TWI568119B/en
Publication of TW201614918A publication Critical patent/TW201614918A/en
Application granted granted Critical
Publication of TWI568119B publication Critical patent/TWI568119B/en

Links

Abstract

A power supply apparatus includes a main converter, a voltage superposition circuit, a voltage detection circuit and a pulse width modulation controller. The voltage superposition circuit is electrically connected to the main converter. The voltage detection circuit is electrically connected to the main converter and the voltage superposition circuit. The pulse width modulation controller is electrically connected to the main converter and the voltage detection circuit. The main converter includes a sensing resistor. The voltage detection circuit detects a sensing voltage of the sensing resistor. The voltage superposition circuit supplies a superposition voltage to the voltage detection circuit when an output voltage of the power supply apparatus is less than a predetermined output voltage, and then the voltage detection circuit sends the sensing voltage and the superposition voltage to the pulse width modulation controller.
TW103135146A 2014-10-09 2014-10-09 Power supply apparatus with over power protection function TWI568119B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW103135146A TWI568119B (en) 2014-10-09 2014-10-09 Power supply apparatus with over power protection function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW103135146A TWI568119B (en) 2014-10-09 2014-10-09 Power supply apparatus with over power protection function

Publications (2)

Publication Number Publication Date
TW201614918A true TW201614918A (en) 2016-04-16
TWI568119B TWI568119B (en) 2017-01-21

Family

ID=56361305

Family Applications (1)

Application Number Title Priority Date Filing Date
TW103135146A TWI568119B (en) 2014-10-09 2014-10-09 Power supply apparatus with over power protection function

Country Status (1)

Country Link
TW (1) TWI568119B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109839525A (en) * 2019-03-13 2019-06-04 深圳市鼎阳科技有限公司 A kind of overpower protection method and protective device for electronic load

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6087782A (en) * 1999-07-28 2000-07-11 Philips Electronics North America Corporation Resonant mode power supply having over-power and over-current protection
TWI269508B (en) * 2005-04-11 2006-12-21 System General Corp An over-power protection apparatus
TWI306187B (en) * 2005-10-13 2009-02-11 System General Corp An over-power protection apparatus with programmable over-current threshold for a power converter
CN100530921C (en) * 2006-07-17 2009-08-19 尼克森微电子股份有限公司 Flyback pulse width modulation device with power-saving mode
TWI443946B (en) * 2010-07-29 2014-07-01 Tpv Electronics Fujian Co Ltd Over power protection (opp) compensation circuit and flyback power supply
TWI467362B (en) * 2012-10-22 2015-01-01 Chicony Power Tech Co Ltd Power supply apparatus with low standby power consumption
TWM496290U (en) * 2014-10-09 2015-02-21 Chicony Power Tech Co Ltd Power supply apparatus with over power protection function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109839525A (en) * 2019-03-13 2019-06-04 深圳市鼎阳科技有限公司 A kind of overpower protection method and protective device for electronic load
CN109839525B (en) * 2019-03-13 2021-02-02 深圳市鼎阳科技股份有限公司 Over-power protection method and protection device for electronic load

Also Published As

Publication number Publication date
TWI568119B (en) 2017-01-21

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