Power converter system
US-2024364218-A1 · Oct 31, 2024 · US
Inductor current emulation circuit for a switching converter
US9065337B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9065337-B2 |
| Application number | US-201313775820-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 25, 2013 |
| Priority date | Feb 25, 2013 |
| Publication date | Jun 23, 2015 |
| Grant date | Jun 23, 2015 |
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Abstract
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An inductor current emulation circuit for use with a switching converter in which regulating the output voltage includes comparing an output which varies with the difference between the output voltage and a reference voltage with a ‘ramp’ signal which emulates the current in the output inductor. A current sensing circuit produces an output which varies with the current in the switching element that is turned on during the ‘off’ time, an emulated current generator circuit produces the ‘ramp’ signal during both ‘off’ and ‘on’ times, a comparator circuit compares the ‘ramp’ signal with at least one threshold voltage which varies with the sensed current and toggles an output when the ‘ramp’ exceeds the thresholds, and a feedback circuit produces an output which adjusts the ‘ramp’ signal each time the comparator circuit output toggles until the ‘ramp’ signal no longer exceeds the threshold voltages.
First claim
Opening claim text (preview).
We claim: 1. An inductor current emulation circuit for use with a switching converter arranged to operate high and low side switching elements connected to an output inductor using a switching cycle having an associated ‘on’ time and ‘off’ time to produce an output voltage, in which regulation of said output voltage includes comparing an output which varies with the difference between said output voltage and a reference voltage with a ‘ramp’ signal which emulates the current in sai…
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Classifications
- H02M3/156Primary
Electricity · mapped topic
Electricity · mapped topic
- H02M3/1582Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9065337B2 cover?
- An inductor current emulation circuit for use with a switching converter in which regulating the output voltage includes comparing an output which varies with the difference between the output voltage and a reference voltage with a ‘ramp’ signal which emulates the current in the output inductor. A current sensing circuit produces an output which varies with the current in the switching element …
- Who is the assignee on this patent?
- Analog Devices Technology, Analog Devices Global
- What technology area does this patent fall under?
- Primary CPC classification H02M3/156. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 23 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).