Patents
US 12230982 B2: State-of-charge balancing with parallel and series output connected battery power modules
- Granted
- 2025-02-18
- Filed
- 2021-11-18 application 17529962
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An apparatus includes a battery pack with N battery bricks, each with a DC output voltage. The output of each brick is connected in series providing a bus voltage. Each brick includes battery power modules (“BPMs”) connected in parallel and each connected to a battery cell. Each BPM charges/discharges the connected battery cell. Each brick has a battery brick controller that provides a control signal to each brick's BPMs. A control signal of a BPM is derived from a BPM error signal that includes a battery cell current of the battery cell of BPM subtracted from a summation of an average current signal, a local droop current and a balancing current. The balancing current is based on a current SOC of the battery cell connected to the BPM and a desired SOC for the battery cell connected to the BPM. A BMS derives the balancing current for the BPMs.
Source: PVGPATDIS, file of 2026-04-10 (ipg250218.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Utah State University 160 patents | US company or organization | Logan, UT | Utah State University College or university EXACT high confidence: identical full name and state UTAH STATE UNIVERSITY Nonprofit EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
| University of Colorado Boulder 6 patents | US company or organization | Boulder, CO | University of Colorado Boulder College or university EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Mohamed Ahmed Kamel Ahmed | Rochester, MI | 2 | PVGPATDIS, file of 2026-04-10 | |
| Regan A. Zane | Hyde Park, UT | 40 | PVGPATDIS, file of 2026-04-10 | |
| Dragan Maksimovic | Boulder, CO | 32 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H02J | Electric power networks; circuit arrangements or systems for supplying or distributing electric power; systems for storing electric energy | H02J7/54 | PVGPATDIS, file of 2026-04-10 |
| H01M | Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy | H01M10/425 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2024-11-01 | Correction Corrective assignment to correct the second assignor's name previously recorded at reel: 58340 frame: 106. assignor(s) hereby confirms the assignment. | ZANE, REGAN signed 2021-11-19 AHMED, MOHAMED AHMED KAMEL signed 2021-12-07 | UTAH STATE UNIVERSITY NORTH LOGAN, UT | 69290/523 | PASDL, file of 2026-10-15 |
| 2021-12-08 | Assignment Assignment of assignor's interest | ZANE, REGAN signed 2021-11-19 KAMEL AHMED, MOHAMED AHAMED signed 2021-12-07 | UTAH STATE UNIVERSITY NORTH LOGAN, UT | 58340/106 | 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.