Stephen P Bachhuber

Title: Innovations of Stephen P. Bachhuber

Introduction

Stephen P. Bachhuber is an accomplished inventor based in Blacksburg, VA (US). He holds a total of 4 patents that showcase his expertise in electronic circuit design and power control systems. His work has significantly contributed to advancements in the field of semiconductor technology.

Latest Patents

One of his notable patents is the "Amplifier power control circuit." This invention involves a sense transistor placed in a current path between a reference voltage source and ground. The base terminal of the sense transistor is coupled to the base terminal of an amplifying transistor, allowing the current in the sense transistor to correspond to the signal power output by the amplifying transistor. The sense current generates a sense voltage at the collector terminal of the sense transistor, which is then applied to one input of an error amplifier. The other input receives a power control voltage, and the output of the error amplifier is routed back to the base terminal of the amplifying transistor in a negative feedback loop. This design maintains a constant power level for the signal output by the amplifying transistor. In some embodiments, the error amplifier output is made independent of changes in the reference voltage, and multiple pairs of corresponding amplifying and sense transistors can be utilized.

Another significant patent is the "Bias circuit with controlled temperature dependence." This bias control circuit generates a bias control current that is proportional to temperature. The bias control current is drawn from a first node of the bias circuit, which also receives a relatively large first current that is proportional to temperature. A bias current is drawn from the first node, equal to the difference between the relatively large first current and the bias control current. The temperature sensitivities of both currents are matched, ensuring that the bias control current remains relatively insensitive to temperature changes.

Career Highlights

Stephen P. Bachhuber is currently employed at Triquint Semiconductor Corporation, where he continues to innovate and develop cutting-edge technologies. His contributions to the field have been recognized through his patents, which reflect his commitment to enhancing electronic systems.

Collaborations

Throughout his career, Stephen has collaborated with notable colleagues, including Thomas R. Apel and Robert E. Knapp. These partnerships have fostered a creative environment that encourages the exchange of ideas and technological advancements.

Conclusion

Stephen P. Bachhuber is a prominent inventor whose