Patents
US 12587089 B2: Frequency tuned resistor-inductor-capacitor snubber for switching power supply
- Granted
- 2026-03-24
- Filed
- 2023-10-05 application 18481369
- Type
- Utility · 19 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A power supply comprises: a transformer having a secondary winding to produce an alternating current at terminals of the secondary winding responsive to a switching current in a primary winding of the transformer; an output rectifier, coupled to the terminals and to an output node and a return node of the output rectifier to be connected to a load, including at least a first diode to rectify the alternating current and to supply a rectified current to the output node; and a first resistor (R)-inductor (L)-capacitor (C) (RLC) snubber (first RLC snubber) including a first resistor, a first inductor, and a first capacitor connected in series with each other, the first RLC snubber coupled to the output rectifier and the secondary winding to dampen voltage ringing in the output rectifier caused by the switching current.
Source: PTBLXML, file of 2026-03-24 (ipgb20260324.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| L3Harris Technologies, Inc. 160 patents | US company or organization | Melbourne, FL | PTBLXML, file of 2026-03-24 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Justin Malcom Graves | Middletown, OH | PTBLXML, file of 2026-03-24 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H02M | Apparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems; conversion of dc or ac input power into surge output power; control or regulation thereof | H02M1/346 | PTBLXML, file of 2026-03-24 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2026-07-27 | Assignment Assignment of assignor's interest | L3HARRIS TECHNOLOGIES, INC. signed 2026-07-25 AEROJET ROCKETDYNE, INC. signed 2026-07-25 AEROJET ROCKETDYNE OF DE, INC. signed 2026-07-25 L3HARRIS CINCINNATI ELECTRONICS CORPORATION signed 2026-07-25 | ROCKETFORCE TECHNOLOGIES LLC MELBOURNE, FL | 76068/283 | PASDL, file of 2026-10-15 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.