TW200603524A - The current limited protection circuit of switching power converter - Google Patents
The current limited protection circuit of switching power converterInfo
- 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
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.
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)
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 |
-
2004
- 2004-07-09 TW TW93120610A patent/TWI268040B/en active
Cited By (2)
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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