Yuhao Liu

Title: Innovations by Yuhao Liu

Introduction

Yuhao Liu is a prominent inventor based in Medford, MA (US), known for his contributions to the field of lighting technology. With a total of six patents to his name, Liu has made significant advancements in the design and functionality of light-emitting diode (LED) systems.

Latest Patents

Among his latest patents is the "Low standby power smart bulb based on a linear power supply." This invention features a driver circuit that includes an input side with a power input circuit and an output side with an LED output current circuit. The output side is equipped with an output smoothing capacitor to control flicker percentage. Additionally, the LED power supply circuit, which is situated between the input and output sides, comprises at least two linear current regulators connected in parallel. A controller circuit is also included to manage the current supplied to the LED output current circuit, ensuring optimal lighting characteristics.

Another notable patent is for "Light emitting diode luminaires with temperature feedback." This innovation provides methods and structures for controlling the characteristics of light projected from a light source. The method involves selecting a color setting for the light emitted by a light engine containing at least one LED and monitoring the temperature of the light engine using a thermistor. The resistance changes measured by the thermistor are correlated with temperature variations, allowing for precise control of the electrical signal energizing the LEDs to achieve the desired color setting.

Career Highlights

Yuhao Liu currently works at Ledvance GmbH, where he continues to develop innovative lighting solutions. His work has significantly impacted the efficiency and functionality of LED technology, making strides in energy conservation and user experience.

Collaborations

Liu collaborates with talented colleagues, including Nilesh Patel and Ming Chu Li, who contribute to the innovative projects at Ledvance GmbH.

Conclusion

Yuhao Liu's contributions to LED technology through his patents demonstrate his commitment to innovation in the lighting industry. His work not only enhances the functionality of lighting systems but also promotes energy efficiency, making a lasting impact on the field.