Pulsiv OSMIUM AC-DC Power Conversion Technology

Pulsiv Limited is a UK power electronics company headquartered at Milton Hall in Cambridge, with a second site in Plymouth. It develops patented power conversion technology that makes power supplies smaller, cooler running and less wasteful, plus a separate HORIZON technology for extracting more energy from solar installations.

Its OSMIUM technology is an AC-DC front-end conversion method that applies intelligent control to an active valley fill approach, reaching a stated 99.5% front-end efficiency, 96-98% power factor and zero inrush current. Pulsiv offers reference designs for power supply designers and fully assembled USB-C modules for in-wall installations, starting with a 65 W module with 73 W dynamic boost and a roadmap from 45 W to 240 W. Customers are power supply makers, OEMs of installed electrical accessories and distributors.

• OSMIUM front end: intelligent active valley fill AC-DC conversion with 99.5% stated efficiency.
• Power factor: 96-98% power factor without a conventional PFC stage.
• Zero inrush: no inrush current at switch-on.
• USB-C modules: 65 W nominal, 73 W boost modules for fixed in-wall installations.
• Reference designs: AC-DC front-end designs such as PSV-CCAD-150 for power supply engineers.
• HORIZON: solar technology to extract more energy for grid export, battery or hybrid use.

A Vietnamese wiring device maker can integrate Pulsiv USB-C modules into wall sockets for hotels and offices. A charger or adapter factory can license OSMIUM reference designs to cut heat in compact chargers. A furniture or smart building supplier can add high-power USB-C outlets to desks and meeting rooms.

The company states 50% less energy waste in the AC-DC front end, which lowers heat and allows smaller enclosures. Zero inrush current removes the need for inrush limiting parts and protects switches and breakers. USB-C modules deliver full power continuously for at least 4 hours without thermal derating. Ready modules designed for EN IEC 63418 shorten time to market for socket and furniture makers.

USB-C is becoming the universal power interface, and new rules such as EN IEC 63418 set safety and EMC requirements for USB outlets in buildings. Energy efficiency rules for power supplies keep tightening. Vietnam is a major manufacturing base for electrical accessories and chargers, and Pulsiv's distribution partner covers the Vietnamese market.

UK company (Reg No 08772178) headquartered in Cambridge with a site in Plymouth. Won the PSMA Global Energy Efficiency Award at APEC 2025, signed a global stocking agreement with Farnell in September 2025 and was shortlisted for the 2025 Elektra Awards. In August 2026 signed an exclusive manufacturing deal with Delta-Matrix (Easby Group), which also distributes in markets including India, Hong Kong and Vietnam. Appointed a new CEO in September 2026.