Multifunction pin for soft start and current limit in voltage converters
US-12160169-B2 · Dec 3, 2024 · US
Soft start scheme under low voltage power
US8975883B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8975883-B2 |
| Application number | US-201213594896-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 27, 2012 |
| Priority date | Apr 25, 2012 |
| Publication date | Mar 10, 2015 |
| Grant date | Mar 10, 2015 |
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Abstract
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A soft start circuit includes an error amplifier for generating a control signal according to an input voltage, a feedback voltage and a reference voltage, a feedback circuit for generating the feedback voltage according to an output voltage, an internal voltage source for generating a soft start voltage, and a sink circuit including a first transformation module for generating a first transformation current according to the soft start voltage, a second transformation module for generating a second transformation current according to the feedback voltage, a comparison module coupled to the first transformation module and the second transformation module for generating a comparison result according to the first transformation current and the second transformation current, and an output module coupled to the comparison module for generating a sink current according to the comparison result, so as to control the control signal.
First claim
Opening claim text (preview).
What is claimed is: 1. A soft start circuit comprising: an error amplifier comprising: a first current mirror for receiving an input voltage; a second current mirror coupled to the first current mirror for receiving the input voltage; a first switch comprising a first end coupled to the first current mirror, a second end for receiving a feedback voltage and a third end; a second switch comprising a first end coupled to the second current mirror, a second end for receiving a…
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- H02M1/36Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8975883B2 cover?
- A soft start circuit includes an error amplifier for generating a control signal according to an input voltage, a feedback voltage and a reference voltage, a feedback circuit for generating the feedback voltage according to an output voltage, an internal voltage source for generating a soft start voltage, and a sink circuit including a first transformation module for generating a first transfor…
- Who is the assignee on this patent?
- Chen Chih-Ning, Chen Yen-Ming, Anpec Electronics Corp
- What technology area does this patent fall under?
- Primary CPC classification H02M1/36. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 10 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).