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US-2020096154-A1 · Mar 26, 2020 · US
Method for controlling inverter
US9024554B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9024554-B2 |
| Application number | US-201313756204-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 31, 2013 |
| Priority date | Feb 1, 2012 |
| Publication date | May 5, 2015 |
| Grant date | May 5, 2015 |
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Abstract
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A method for controlling an inverter in a system including a load, a motor for driving the load, and an inverter for operating the motor comprises when a load amount of the load is reduced to below a sleep level, checking whether a time corresponding to a sleep delay has lapsed; when the load amount of the load is still below the sleep level even after the sleep delay, varying an operating frequency of the motor, and if there is no change in a feedback from the load in response to the variation in the operating frequency, controlling the inverter to enter a sleep mode.
First claim
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What is claimed is: 1. A method for controlling an inverter in a system including an electric load, a motor for driving the load, and the inverter for operating the motor, the method comprising: determining a load amount of the load; allowing a time corresponding to a sleep delay to lapse when the load amount is below a sleep level; determining whether the load amount is below the sleep level after the time corresponding to the sleep delay has lapsed; varying an operating fr…
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- What does patent US9024554B2 cover?
- A method for controlling an inverter in a system including a load, a motor for driving the load, and an inverter for operating the motor comprises when a load amount of the load is reduced to below a sleep level, checking whether a time corresponding to a sleep delay has lapsed; when the load amount of the load is still below the sleep level even after the sleep delay, varying an operating freq…
- Who is the assignee on this patent?
- Lsis Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification A47K10/22. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue May 05 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).