US Patent Issued to Microchip Technology on March 18 for "LLC resonant converter with variable resonant frequency" (Irish Inventor)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,255,543, issued on March 18, was assigned to Microchip Technology Inc. (Chandler, Ariz.).

"LLC resonant converter with variable resonant frequency" was invented by Boyko Valchev (Wexford, Ireland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A resonant converter includes a high-side switch and a low-side switch, both coupled to a common node and driven by a complementary input signal. The common node drives a coupled inductor, the coupled inductor connected in parallel with a variable impedance. The coupled inductor may be coupled in series with a capacitor and a transformer. The variable impedance may be adjusted to modify the resonant frequency of t...