Ich D Ngo is a notable inventor based in Monterey Park, CA (US), recognized for his contributions to spacecraft technology. He holds 2 patents that showcase his innovative approach to enhancing the efficiency and functionality of solar arrays in space.

Latest Patents

One of his latest patents is titled "Measurement of current and voltage of an in-orbit solar array." This invention comprises an apparatus that includes switches, a measurement unit, and a telemetry subsystem. The switches connect the current sources to a power bus when in a first position and to the measurement unit when in a second position. The measurement unit generates a ramp signal to control the solar strings from an open circuit state to a short circuit state linearly in a short duration. It provides continuous current and voltage telemetry data at the output while the set of switches is in the second position. The telemetry subsystem is pre-set to a dwell mode and samples a large amount of voltage and current telemetry data. This data is transmitted directly to the ground, eliminating the need for processing and storage resources in the spacecraft. The telemetry data is crucial for plotting the I-V curve for health monitoring.

Another significant patent is the "Sequential shunt solar array controller." This current controller for a spacecraft comprises ripple regulators and a pulse width modulated regulator. The ripple regulators receive current from associated current sources and either pass current to or shunt current away from the bus. The pulse width modulated regulator receives current from another source and passes a portion of the current to the bus. It varies its set point to float between the ripple regulators passing current and those shunting current, adjusting the portion of current shunted away from the bus. An error generation circuit generates an error that adjusts both the ripple regulator and the pulse width modulated regulator to achieve a desired bus voltage level.

Career Highlights

Ich D Ngo is currently employed at The Boeing Company, where he applies his expertise in spacecraft technology. His work focuses on improving solar array systems, which are vital for the operation of spacecraft.

Collaborations

He collaborates with talented coworkers, including Winnie W Choy and Winnie Wai-Yue Choy, contributing to innovative projects within the company.

Conclusion

Ich D Ngo's contributions to spacecraft technology through his patents demonstrate his commitment to innovation in the field. His work continues