Junjie Mai

Title: Innovations of Junjie Mai

Introduction

Junjie Mai is a prominent inventor based in Beijing, China. He has made significant contributions to the field of electrical engineering, particularly in voltage conversion and USB charging technologies. With a total of 4 patents to his name, his work continues to influence the industry.

Latest Patents

One of Junjie Mai's latest patents is a voltage converter with loop control. This innovative voltage converter system includes a switch that is adapted to be coupled to an inductor. It is configured to switch between first and second states in response to a control signal. The calibration circuitry generates a calibration signal, which is set to a particular value for a specific time in response to a transient from one load condition to another. Additionally, control circuitry is coupled to the calibration circuitry and is designed to generate the control signal based on a combination of feedback voltage, reference voltage, calibration signal, and a periodic signal.

Another notable patent involves methods, electronic devices, and charger apparatus for quick USB charging. This USB charger apparatus and chargeable electronic devices utilize USB cable data lines to establish a bidirectional communications connection. The charger provides capability information to the master controller of the electronic device via this connection. The device controller preferentially selects the fastest charging match between the charger capability information and device charging capability information. It sends configuration information through the communications connection to set the power supply level of the charger, which can then communicate power supply status information back to the electronic device.

Career Highlights

Junjie Mai is currently employed at Texas Instruments Corporation, where he continues to innovate and develop new technologies. His work has garnered attention for its practical applications and efficiency improvements in electronic devices.

Collaborations

Some of his notable coworkers include Tao Wang and Jiachuan Zhang, who have also contributed to advancements in their respective fields.

Conclusion

Junjie Mai's contributions to the field of electrical engineering through his patents and work at Texas Instruments Corporation highlight his role as a key innovator. His inventions in voltage conversion and USB charging technologies are paving the way for future advancements in electronic devices.