Company Filing History:
Years Active: 2020-2025
Title: Cristian Grecu: Innovator in Digital-to-Analog Converter Circuits
Introduction
Cristian Grecu is a notable inventor based in Munich, Germany. He has made significant contributions to the field of electronics, particularly in the development of digital-to-analog converter circuits. With a total of five patents to his name, Grecu's work showcases his innovative approach to solving complex engineering challenges.
Latest Patents
One of Cristian Grecu's latest patents is a piecewise linear digital-to-analog converter circuit. This invention approximates an exponential output current over a range of input codes by generating linearly varying currents with different slopes for different ranges of the input codes. The circuit includes a current generator that produces the output current based on a reference voltage and a feedback signal. A variable resistance circuit is utilized to generate the feedback signal using the output current, with respective values of the reference voltage and variable resistance varying as a function of the input code.
Another significant patent is a high current, low dropout driver circuit. This circuit features a decoder that decodes a plurality of control bits to generate control signals. It includes a current source with multiple devices, which activates a subset of these devices to provide load current to a load circuit, such as a light-emitting diode (LED). The control circuit generates the control voltage based on the load current and a reference current, enhancing the efficiency of the circuit.
Career Highlights
Cristian Grecu is currently employed at Apple Inc., where he continues to innovate and develop cutting-edge technologies. His work at Apple has allowed him to contribute to various projects that push the boundaries of electronic design and functionality.
Collaborations
Throughout his career, Cristian has collaborated with talented individuals such as Bogdan-Eugen Matei and Fabio Ongaro. These collaborations have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.
Conclusion
Cristian Grecu is a prominent inventor whose work in digital-to-analog converter circuits has made a significant impact in the field of electronics. His innovative patents and contributions at Apple Inc. highlight his dedication to advancing technology.