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SST's Qualification Race Begins: First National Certificate, GW-Scale Orders and Carrier Pilots Land in One Week
Between 20 and 24 October 2026, the solid-state transformer (SST) segment saw four landmark events in a single week: China's CAICT/Tairer lab issued the country's first SST product test report and certificate (49 tests on the full unit); China Mobile's CMCC Energy opened bidding on its SST-AIDC 800V DC supply prototype, with Goldpark first (100% proposed share) and Sungrow second; data-center operator Vantage signed the world's first gigawatt-scale SST supply agreement with Heron Power (Heron Li
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Countdown to 1 November: GB 46519's 9-point weighted efficiency rule is hardest on transformers and inductors
GB 46519-2025, China's first mandatory energy-efficiency standard for EV charging equipment, takes effect on 1 November 2026, replacing the single peak-efficiency figure with a weighted average over 9 operating points: 400V/600V/800V platforms times 20%/50%/100% load. This article breaks down the test method and the three grade thresholds (integrated DC chargers: grade 1 at 96.5%, grade 2 at 95.5%, grade 3 admission at 94.5%), quantifies the 0.5-1.5 percentage-point gap between legacy units at 9
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Planar vs. wire-wound transformers: a quantifiable engineering selection guide
Planar and wire-wound transformers are not substitutes — they fit different constraints. This article breaks the selection boundary into six quantifiable criteria (height 22–28 vs 8–14 mm, high-frequency AC winding loss, leakage 3%–8% vs 0.5%–2%, thermal path, batch consistency ±10~15% vs ±3~5%, overall cost) and gives the judgement order "height → frequency → cost" plus how to handle the 100–500 kHz overlap zone.
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TLVR shortage: from "concept" to "bottleneck" — the domestic-substitution window for AI-server power is open
TLVR (trans-inductor voltage regulator) is the mandatory coupled inductor for NVIDIA Rubin / GB200 GPU core power. This article breaks down its nanosecond transient principle and six hard specs (L 70–220nH, DCR≤0.3mΩ, Isat 50–100A/phase, Bs≥1.5T carbonyl-iron), and shows why supply is tight: 32–40-week lead time, build-out to 2028, spot price +45–70% YTD; market ¥2.5B→¥44B (CAGR>75%). Three domestic-substitution paths and the window are given.
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10kV SST high-frequency transformer design: start from the system boundary, not the core
10kV SST high-frequency transformer design: start from the system boundary, not
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Copper near record high, TC/RC negative: how much copper is really in a magnetic component's cost?
Copper near record high, TC/RC negative: how much copper is really in a magnetic
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100W Flyback Transformer (ER28/34, 100kHz) Full Design: How Every Parameter Is Set, from Spec to Prototype
Walk through a 100W/12V flyback design with ER28/34 + PC95, 100kHz DCM: turns ratio, primary inductance, turns count, winding, loss and temperature-rise calculation, with TDK official material data and IEC 62368 safety notes.
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SST Live Hot-Swap: The Scalability Switch Hiding on the Last Line of the Spec Sheet
Beyond efficiency, power density and availability, what decides whether the solid-state transformer (SST) scales commercially is live hot-swap. This article breaks down the four hard constraints that keep the medium-voltage side from live hot-swap, quantifies MTTR's impact on five-nines availability, and surveys vendor module-replacement capability in 2026.
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On the Eve of SST Mass Production: Three Barriers Facing High-Frequency Transformers
engineering barriers facing SST high-frequency transformers — insulation reliability, high-frequency loss, and parameter consistency — and the planar and magnetic-integration routes addressing them.
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The AI Power-Supply Revolution: How Magnetic Components Shoulder the "Trillion-kWh" Electricity Bill
An 8-GPU server consumes 180 to 250 inductors; a single AI data center uses as much electricity in a year as a mid-sized city. As compute starts "eating power," who manages how each unit of electricity flows, converts and stabilizes? The answer lies in those unassuming magnetic components.
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点击右上角
分享给朋友吧
Contact Us
Phone：+86-13510169982
E-mail：ywei@boulder.com.cn
If you wish to know more about our products, please contact our service hotline.
Copyright ©2025 All Rights Reserved Boulder Electronics Co., LTD., Guangdong ICP No. 17097034
