Boost converter and power controling method thereof
US-9653998-B2 · May 16, 2017 · US
Control device of power supply system and power supply unit
US10193445B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10193445-B2 |
| Application number | US-201615277086-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 27, 2016 |
| Priority date | Sep 28, 2015 |
| Publication date | Jan 29, 2019 |
| Grant date | Jan 29, 2019 |
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- Title
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- Abstract
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Abstract
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A control device is applied for a power supply system that includes two boost converters. The two boost converters boosts inputted direct-current voltages to predetermined output voltages and output ends of the two boost converters are connected in parallel with each other. The control device includes a switching portion and a control portion. The switching portion controls switching of a switching element included in each of the two boost converters. The control portion shifts switching timings of the switching elements of the two boost converters from each other.
First claim
Opening claim text (preview).
What is claimed is: 1. A control device of a power supply system that includes two boost converters, the two boost converters boosting inputted direct-current voltages to predetermined output voltages with output ends of the two boost converters connected in parallel with each other, the control device comprising: a switching portion controlling switching of a switching element of each of the two boost converters; and a control portion shifting switching timings of the switching elements of the two boost converters from each other, wherein the switching timing is a timing of an intersection of a duty command value to each of the two boost converters and a carrier wave that is a triangular wave, and the control portion performs a synchronization of the switching timing from on to off or from off to on of one of the two boost converters and a crest or a trough of the carrier wave of the other of the two boost converters, and when the duty command value to one of the two boost converters changes, the control portion controls a phase of the carrier wave of the other of the two boost converters based on a change amount of the duty command value to the one of the two boost converters and performs the synchronization. 2. A control device of a power supply system that includes two boost converters, the two boost converters boosting inputted direct-current voltages to predetermined output voltages with output ends of the two boost converters connected in parallel with each other, the control device comprising: a switching portion controlling switching of a switching element of each of the two boost converters; and a control portion shifting switching timings of the switching elements of the two boost converters from each other, wherein the switching timing is a timing of an intersection of a duty command value to each of the two boost converters and a carrier wave that is a triangular wave, and the control portion performs a synchronization of the switching timing from on to off or from off to on of one of the two boost converters and a crest or a trough of the carrier wave of the other of the two boost converters, and when the duty command value to one of the two boost converters changes, the control portion controls a frequency of the carrier wave of the other of the two boost converters based on a change amount of the duty command value to the one of the two boost converters and performs the synchronization. 3. A power supply unit comprising: two boost converters boosting inputted direct-current voltages to predetermined output voltages; an inverter connected to output ends of the two boost converters and converting the output voltages of the two boost converters to alternating-current voltages; and a control device controlling operations of the two boost converters and the inverter, the control device including: a switching portion controlling switching of switching elements included in the two boost converters; and a control portion shifting switching timings of the switching elements of the two boost converters from each other, wherein the switching timing is a timing of an intersection of a duty command value to each of the two boost converters and a carrier wave that is a triangular wave, and the control portion performs a synchronization of the switching timing of one of the two boost converters and a crest or a trough of the carrier wave of the other of the two boost converters, and when the duty command value to one of the two boost converters changes, the control portion controls a phase of the carrier wave of the other of the two boost converters based on a change amount of the duty command value to the one of the two boost converters and performs the synchronization. 4. A power supply unit comprising: two boost converters boosting inputted direct-current voltages to predetermined output voltages; an inverter connected to output ends of the two boost converters and converting the output voltages of the two boost converters to alternating-current voltages; and a control device controlling operations of the two boost converters and the inverter, the control device including: a switching portion controlling switching of switching elements included in the two boost converters; and a control portion shifting switching timings of the switching elements of the two boost converters from each other, wherein the switching timing is a timing of an intersection of a duty command value to each of the two boost converters and a carrier wave that is a triangular wave, and the control portion performs a synchronization of the switching timing of one of the two boost converters and a crest or a trough of the carrier wave of the other of the two boost converters, and when the duty command value to one of the two boost converters changes, the control portion controls a frequency of the carrier wave of the other of the two boost converters based on a change amount of the duty command value to the one of the two boost converters and performs the synchronization.
Assignees
Inventors
Classifications
Series type · CPC title
Electricity · mapped topic
Operating parameters · CPC title
- H02M3/158Primary
including plural semiconductor devices as final control devices for a single load · CPC title
using semiconductor devices only, e.g. single switched pulse inverters · CPC title
Patent family
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10193445B2 cover?
- A control device is applied for a power supply system that includes two boost converters. The two boost converters boosts inputted direct-current voltages to predetermined output voltages and output ends of the two boost converters are connected in parallel with each other. The control device includes a switching portion and a control portion. The switching portion controls switching of a switc…
- Who is the assignee on this patent?
- Denso Corp
- What technology area does this patent fall under?
- Primary CPC classification H02M3/158. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 29 2019 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).