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STMicroelectronics’ phase-shift control ICs squeeze more efficiency from resonant converters

Summary by EEJournal
Geneva, Switzerland, February 18, 2026 — STMicroelectronics has introduced the STNRG599A and STNRG599B controllers for resonant-converter topologies with innovative phase-shift control (PSC) that boosts power-supply no-load efficiency and delivers flicker-free deep dimming in lighting applications. The STNRG599A is optimized for power conversion, with built-in X-capacitor discharge circuitry for safety in adapters, chargers, TV power supplies, a…
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EEJournal broke the news in on Thursday, February 19, 2026.
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