Systems, methods, and devices for pulse amplitude modulated charging
US-2024405592-A1 · Dec 5, 2024 · US
Power supply apparatus
US8942016B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8942016-B2 |
| Application number | US-201213475138-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 18, 2012 |
| Priority date | May 19, 2011 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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Abstract
Official abstract text for this publication.
A second control circuit is configured to switch a pulse signal to a level which turns off a second switching transistor when a coil current that flows through a primary winding reaches a predetermined threshold current. The second control circuit is configured to start a switching operation when a power supply for an electronic device is turned on, to set the threshold current to a first value when an intermediate voltage is higher than a predetermined level, and to set the threshold current to a second value that is lower than the first value when the intermediate voltage is lower than a predetermined level. A first control circuit is configured to start a switching operation upon receiving an instruction from a microcontroller to start operating.
First claim
Opening claim text (preview).
What is claimed is: 1. A power supply apparatus comprising: a rectifier circuit configured to full-wave rectify AC voltage; a power factor correction circuit including a non-insulation type DC/DC converter configured to receive an output voltage of the rectifier circuit, and to generate a DC intermediate voltage, and configured to operate such that the phase of the input current matches the phase of the AC voltage thus rectified; an insulation type DC/DC converter configured t…
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Classifications
Electricity · mapped topic
- H02M1/4225Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H02M3/33569Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8942016B2 cover?
- A second control circuit is configured to switch a pulse signal to a level which turns off a second switching transistor when a coil current that flows through a primary winding reaches a predetermined threshold current. The second control circuit is configured to start a switching operation when a power supply for an electronic device is turned on, to set the threshold current to a first value…
- Who is the assignee on this patent?
- Nate Satoru, Hayashi Hiroshi, Rohm Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H02M1/4225. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 27 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).