2results about How to "Reduce power density" patented technology

This application relates to the field of optical device technology, and discloses a Faraday rotator, its fabrication method, and an isolator. The Faraday rotator comprises multiple magneto-optical crystals and multiple heat-dissipating crystals, which are alternately stacked along the optical path. Embodiments of this application can overcome the thermal focus shift defect of the isolator without increasing the output beam diameter of the collimator.

The application discloses an LLC resonant converter, a power supply circuit and a method for generating an output voltage. The LLC resonant converter comprises a full-bridge switching circuit, a transformer, a resonant circuit and a bridge rectifier. The full-bridge switching circuit comprises a first transistor, a second transistor, a third transistor and a fourth transistor, the first ends of the first transistor and the third transistor are connected to a direct current input voltage, and the second ends of the first transistor and the third transistor are respectively connected to the first ends of the second transistor and the fourth transistor. The two ends of a secondary winding of the transformer are respectively connected to the second ends of the fourth transistor and the second transistor. The resonant circuit is connected between a first switching node formed by the first transistor and the second transistor and a second switching node formed by the third transistor and the fourth transistor. The bridge rectifier is connected between the two ends of the secondary winding to generate a rectified output signal, and the rectified output signal is filtered to generate an output voltage. The application improves the efficiency of the LLC resonant converter.