Keith M Wellnitz is a notable inventor based in Chandler, AZ (US). He has made significant contributions to the field of electronics, particularly in the protection of MOSFETs from destructive voltages and currents. With a total of 5 patents to his name, Wellnitz has demonstrated a commitment to innovation and technological advancement.

Latest Patents

One of his latest patents is titled "Clamp circuit and method for identifying a safe operating area." This invention features a clamp circuit designed to protect a MOSFET from harmful voltages and currents. The circuit includes a clamping element, a current switch, a bond pad, a probe pad, and a resistor. When no external signal is applied to the probe pad, a FET in the clamping element remains conductive. If the drain voltage of the MOSFET exceeds the clamping voltage, the current flows through the clamping element, activating the MOSFET. To maintain a safe operating area, a voltage is applied to the probe pad to turn off the FET, and the breakdown voltage of the MOSFET is compared with the clamp voltage to ensure safety.

Another significant patent is "Clamp circuit and method for detecting an activation of same." This invention also focuses on protecting a MOSFET from destructive voltages. It includes a clamping element, a Zener diode, two current mirrors, a current switch, a reference current source, and a voltage detector. When the drain voltage rises above the clamping voltage, a clamping current activates the MOSFET. The two current mirrors generate an output current that exceeds the reference current, raising the voltage at the input terminal of the voltage detector. This detector signals the activation of the clamp circuit, ensuring that both the circuit and its inductive load are intact.

Career Highlights

Keith M Wellnitz is currently employed at Motorola Corporation, where he continues to innovate and develop new technologies. His work has had a lasting impact on the field of electronics, particularly in enhancing the reliability and safety of electronic components.

Collaborations

Throughout his career, Wellnitz has collaborated with several talented individuals, including Gary V Fay and Jeffrey G Mansmann. These collaborations have contributed to the successful development of his patents and innovations.

Conclusion

Keith M Wellnitz is a distinguished inventor whose work in the

Profile summary based on public USPTO records.

Please report any incorrect information to [email protected]