Bidirectional DC-DC Converter Gate Driver Patents: Leaders & Trends 2026
- Filing activity has already peaked. 2018 recorded 14 filings, the high point of the dataset; the 2022 midpoint sits at 10 and the trend has flattened or declined since, not accelerated.
- Isolation and signal-integration are the live claim frontier. The most-recent representative filing integrates power and signal transmission into a single transformer-coupled module, a direction several of the most-cited older records were already pointing toward.
- The US dominates the filing map by a wide margin. 91 of the tracked records were filed at the USPTO against 13 at the EPO and single digits elsewhere, so regional strategy is heavily US-weighted.
Filing growth compares 2021 (12 records) with 2024 (11) — a three-year span. 2024 is the most recent year we treat as complete: publication lags filing by roughly 18 months, so 2025 onwards are still filling in and any growth rate that ends there would understate the field. Top-5 share is the combined record count of the five largest assignees divided by all 141 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
Bidirectional DC-DC converter gate drivers sit at the intersection of power conversion and pulse/logic switching control — the circuitry that decides how cleanly a switch turns on and off, and how much dead-time margin is needed to avoid shoot-through in a converter that must move current in both directions. This dataset covers 141 patent families published between 2015 and mid-2026, filtered to filings whose claims explicitly address gate driver, isolated gate driver, gate drive circuit, or dead-time control mechanisms within a bidirectional or general DC-DC converter context.
Publication typically lags filing by around 18 months, so the most recent year in any trend chart understates real filing activity; treat the final one or two years as a floor, not a ceiling.
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Filing trend and technology composition
Two views of the same 141 families: how filing volume has moved year over year, and which IPC subclasses the claims actually sit in.
A peak already behind us
Filings rose to 14 in 2018, the peak of the series, then settled toward a midpoint of 10 in 2022. That pattern reads as flat-to-declining rather than a technology still building momentum — claim space filled early and has not reopened.
Power conversion dominates, logic and grid support trail
H02M (power conversion) covers 136 of 141 records, essentially the whole dataset, confirming the converter topology itself is the primary claim target. H03K (pulse technique and logic) appears in 40 records, marking the gate-drive and timing-control layer as the secondary but substantial claim zone. Smaller counts in H02J, G09G, B60L, G06F, H01F and H03B show the topic touching grid integration, display power rails, EV propulsion, digital control and transformer/oscillator design without any of those becoming a dedicated sub-field.
Shares are the percentage of the 141 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Bidirectional DC-DC Converter Gate Driver with Eureka
This page is one run against one query. Ask Eureka your own question about bidirectional dc-dc converter gate driver and every answer comes back with the patent numbers behind it.
Try EurekaMost-cited records and a recent representative filing
US20250007394A1 — Isolated gate driver system
In an isolated gate driver system, isolation for both power transmission and signal transmission is integrated into a single module. The isolated gate driver system includes a resonant isolated DC-DC converter, and uses a modulation scheme to transfer a control signal in combination with power supply through a transformer of the resonant isolated DC-DC converter. A resonance tank control switch modifies a capacitance in a resonance tank circuit based on a signal indicative of the control signal.Filed by Murata Manufacturing Co., Ltd., published 2025-01-02 — illustrates the move toward combining power and signal isolation in one transformer path rather than separate channels.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | CN101785187A | 减小功耗的MOSFET栅极驱动器 | 35 |
| 2 | US20140355313A1 | Resonant DC-DC converter control device | 32 |
| 3 | US20190222126A1 | Galvanically isolated DC-DC circuit converter with data communication, corresponding system and corresponding… | 28 |
| 4 | US20180287494A1 | Bidirectional DC-DC converter | 24 |
| 5 | US20080253151A1 | METHOD AND APPARATUS TO REDUCE DYNAMIC Rdson IN A POWER SWITCHING CIRCUIT HAVING A III-NITRIDE DEVICE | 23 |
| 6 | US10305363B1 | Current doubling DC-DC converter with efficient sleep mode | 21 |
| 7 | JP2010528575A | 電力損失が低減されたMOSFETゲートドライブ | 21 |
| 8 | US6819088B2 | DC-DC converter with resonant gate drive | 18 |
| 9 | KR1020060067552A | Gate driver circuit for DC-DC converter | 16 |
| 10 | US20030090918A1 | DC-DC converter with resonant gate drive | 15 |
Citation counts accumulate over time and favour older filings; read this table as a map of influence within the searched corpus, not as a ranking of current relevance.
Patent titles are shown in the language they were filed in, not translated, so that each record stays verifiable against the original filing — a translated title will not match in Eureka or in any national register. Each row carries its publication number; clicking a row searches Eureka by that number.
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Browse MCP servers →What the numbers mean for a filing decision
Three read-throughs from the trend, the citation table and the IPC spread.
Claim space filled early, not lately
The peak year for filings, 2018, is already behind the dataset's midpoint. A flat-to-declining trend since then suggests the core converter and gate-drive claim territory was staked out in the first half of the period rather than being contested now.
Power conversion is the claim center of gravity
Nearly every record in the corpus sits in H02M, with H03K pulse/logic claims layered on top in 40 records. Adjacent subclasses like H02J, B60L and G06F appear only in single digits, meaning cross-domain integration claims are comparatively rare.
Older MOSFET gate-drive art still anchors the field
The most-cited record dates from the earlier MOSFET gate-driver era and predates the bidirectional-specific framing now common in filings. High citation counts here mark foundational switching-loss and dead-time concepts rather than current best practice.
A US-centered filing map
Nearly two-thirds of tracked receiving-office records are in the United States, with Europe and India as distant second-tier venues. Filing strategies that assume even China/Korea coverage will find comparatively thin protection there in this specific claim area.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to bidirectional dc-dc converter gate driver, with the prior art for and against each one.
Who is active, and where the activity has stalled
Momentum in this corpus reads as a name recognizable from power semiconductors and display/EV supply chains, with recent-year filings from tracked assignees dropping to zero.
No assignee is currently accelerating
Every assignee named in the recent-momentum data — spanning analog IC specialists, a Korean display maker, European and US semiconductor firms, and a Japanese electronics manufacturer — shows zero filings in the latest tracked year, with two logging a full -100% year-over-year drop.
Co-filing is rare in this niche
Only two co-assignee pairings appear across 141 families. The strongest links a Korean display manufacturer with a national research institute, suggesting occasional university-industry collaboration rather than a pattern of joint ventures.
Established electronics manufacturers still file selectively
The most recent representative record in this dataset comes from an established Japanese electronics manufacturer, filed for an isolated gate driver system that merges power and signal transmission — a sign that large incumbents keep filing narrowly even as overall volume has flattened.
| Assignee | Recent year | YoY |
|---|---|---|
| Advanced Analog Technology, Inc. | 0 | — |
| Samsung Display Co., Ltd. | 0 | — |
| STMicroelectronics S.r.l. (Italy) | 0 | — |
| Texas Instruments Incorporated | 0 | -100% |
| Murata Manufacturing Co., Ltd. | 0 | — |
| NXP USA, Inc. | 0 | -100% |
| Samsung Electronics Co., Ltd. (Korea) | 0 | -100% |
| Ushio Denki Kabushiki Kaisha | 0 | — |
Where to take this analysis
The dataset points to specific next steps rather than a single conclusion.
Check freedom-to-operate around isolated combined-signal modules
The representative 2025 filing and several highly cited older records converge on integrating power and signal isolation through one transformer path. Any new design following that architecture should be checked against this cluster specifically.
Explore this cluster in EurekaAssess the thin China and Korea filing footprint
With only 6 and 5 tracked records respectively, the regional coverage gap could mean either an opening for new filings or an unmapped risk if local players are filing outside this search's scope.
Run a regional gap check in EurekaWatch for a re-acceleration signal past the lag window
Because the two most recent years in the trend are understated by publication lag, confirm whether 2025–2026 filings pick back up once later publications land, rather than assuming the decline is final.
Track filing trend updates in EurekaCommon questions on this landscape
It is a patent whose claims cover the gate-driving circuitry — the isolated driver, drive circuit topology, or dead-time control scheme — used within a DC-DC converter capable of moving power in both directions. It is distinct from a patent on the converter's power topology alone, since the gate-driver claims focus on switch timing, isolation, and shoot-through prevention rather than the overall power stage. In this dataset such patents are identified by requiring gate-driver-related terms in the claims alongside DC-DC or bidirectional converter terms in the title.
No, not based on this corpus. Filings peaked at 14 in 2018, and by the 2022 midpoint had settled to 10, with the overall trend reading flat to declining rather than accelerating. Because publication lags filing by roughly 18 months, the final one or two years in any such chart will always look artificially low, so a genuine rebound in 2025–2026 filings would not yet be visible.
The tracked assignees span analog IC specialists, a major Korean display manufacturer, European and US semiconductor firms, and a Japanese electronics manufacturer, but none of them show any filings in the most recent tracked year — several dropped by a full 100% year over year. That pattern suggests the field currently has no single accelerating leader; instead, filing activity has broadly cooled across the previously active assignees, with occasional selective filings from large incumbents.
The IPC composition shows heavy concentration in power conversion (H02M) and pulse/logic control (H03K), while adjacent subclasses like EV propulsion integration (B60L), display power rails (G09G), and general digital processing (G06F) each appear in only single digits. That imbalance points to under-claimed intersections — for example, gate-drive schemes purpose-built for EV bidirectional chargers, or adaptive dead-time control tied to specific wide-bandgap device characteristics — where claim density is currently thin relative to the core topology space.
US20250007394A1, filed by Murata Manufacturing, describes an isolated gate driver system that integrates power and signal transmission into a single module using a resonant isolated DC-DC converter and a resonance tank control switch that modulates capacitance to carry the control signal alongside power through one transformer. It most directly blocks designs that use this specific single-transformer, modulation-based combined isolation approach. Designs using separate isolation paths for power and signal, or different modulation schemes for signal transfer, would need a claim-by-claim comparison rather than assuming automatic overlap.
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Disclaimer. This page is generated from Patsnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. Patsnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.
Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company’s registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.