Yu-Che Liu

Title: Yu-Che Liu: Inventor in Power Electronics

Introduction

Yu-Che Liu is an inventor based in Hsinchu, Taiwan. His patent work includes technologies for voltage-level shifting and power control. He is associated with 2 patents.

Latest Patents

Liu’s listed patents address circuit design and power-system control.

- **Voltage level shifter.** This invention combines a voltage-level shift circuit with a boost circuit. The boost circuit responds to an input signal by providing two boost voltages and boosting one of them according to a third voltage. The shift circuit uses these inputs to produce a shift voltage while operating between two voltage levels.

- **Power controller with turn-on time configured according to number of current limit operations.** This power controller sets a peak current value using a divided input voltage and a current-limit turn-on time value. It counts trigger signals during a calculation period to determine the number of current-limit operations, then uses a recursive calculation to adjust the turn-on time toward a target number of operations. The controller turns off the power switch when it receives a current-limit trigger or when the timer signals that the set turn-on time has elapsed.

Career Highlights

Liu has been associated with Joint Power Exponent, Ltd. and Winbond Electronics Corporation. His listed inventions reflect work on voltage conversion and power-controller operation.

Collaborations

His listed coworkers include Jyh-Ting Lai and Yung-Chou Lee.

Conclusion

Yu-Che Liu’s patent portfolio highlights contributions to voltage-level shifting and power control, alongside professional associations with Joint Power Exponent and Winbond Electronics.