Systems and methods for sensing current while minimizing measurement error and power loss
US-2015331049-A1 · Nov 19, 2015 · US
Step-up/down type power supply circuit
US8928302B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8928302-B2 |
| Application number | US-201313781315-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 28, 2013 |
| Priority date | Sep 21, 2012 |
| Publication date | Jan 6, 2015 |
| Grant date | Jan 6, 2015 |
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Abstract
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A first added signal that is acquired by adding a reference current signal that is in proportion to a current flowing through an inductance element, a slope compensation signal and a voltage difference signal that is in proportion to a difference between an input voltage and an output voltage and a second added signal that is acquired by adding the reference current signal and the slope compensation signal are compared with a difference signal of a voltage that is in proportion to the output voltage and a predetermined reference voltage, and pulse widths of driving pulse signals of a step-down switching circuit and a step-up switching circuit are controlled as a result of the comparison.
First claim
Opening claim text (preview).
What is claimed is: 1. A step-up/down type power supply circuit comprising: a first terminal to which an input voltage is applied; a second terminal to which a ground voltage is applied; an output terminal that outputs an output voltage; a step-down switching circuit that is connected between the first and second terminals; a step-up switching circuit that is connected between the output terminal and the second terminal; an inductance element that is connected between th…
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- G05F1/46Primary
Physics · mapped topic
- H02M3/1582Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8928302B2 cover?
- A first added signal that is acquired by adding a reference current signal that is in proportion to a current flowing through an inductance element, a slope compensation signal and a voltage difference signal that is in proportion to a difference between an input voltage and an output voltage and a second added signal that is acquired by adding the reference current signal and the slope compens…
- Who is the assignee on this patent?
- Toshiba Kk
- What technology area does this patent fall under?
- Primary CPC classification G05F1/46. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 06 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).