Abstract: A high-noise-resistance and low-delay level shifting circuit for a GaN half-bridge driving chip is provided, relating to the technical field of power management in integrated circuits. A path from a floating power rail VDDH to the ground is arranged to simulate the noise generated when the voltage of the floating power rail in the level shifting circuit suddenly changes. Theoretically, a noise resistance performance can be achieved according to the present disclosure. In addition, only six PMOS transistors, one NLDMOS transistor and one inverter are added, having a simple structure.

Abstract: A phase control waveguide structure based on an anisotropic material and a wavelength division multiplexer structure thereof are provided. A phase control waveguide, as part of a wavelength division multiplexer, is symmetrically designed along a special angle. Based on this method, an arrayed waveguide grating for implementing a wavelength division multiplexer on the anisotropic material, and a cascaded Mach-Zehnder interferometer structure are further provided.

Abstract: A high-noise-resistance and low-delay level shifting circuit for a GaN half-bridge driving chip is provided, relating to the technical field of power management in integrated circuits. A path from a floating power rail VDDH to the ground is arranged to simulate the noise generated when the voltage of the floating power rail in the level shifting circuit suddenly changes. Theoretically, a noise resistance performance can be achieved according to the present disclosure. In addition, only six PMOS transistors, one NLDMOS transistor and one inverter are added, having a simple structure.