Lukas Niederwieser

Title: Lukas Niederwieser: Innovator in Digital Power Amplification

Introduction

Lukas Niederwieser is an inventive mind based in Graz, Austria. He is currently associated with Panthronics AG, where he focuses on advancements in digital power amplification technology. Despite having no granted patents to his name, his contributions to the field are noteworthy.

Latest Patent Applications

Lukas has been involved in several innovative patent applications. One of his latest applications is titled "Wireless Charging With Hybrid Sin/Square Reconfigurable RF Waveform." This application describes a digital power amplifier designed to drive an RFID antenna with a substantial sinusoidal output current. The amplifier includes a switching element that can switch at least one of the 2*W driver blocks from a contributing mode into a non-contributing mode. In this mode, the driver block does not contribute to the output current, allowing for adjustments in the amplitude and/or waveform of the output signal.

Another significant application is "Increasing Digital Power Amplifier Efficiency by Reusing Driver Current." This application outlines a differential digital power amplifier that drives an RFID antenna with a sinusoidal output current. It features a digital control section that outputs digital wave-forming bits to two groups of driver blocks. The design includes a switch that short circuits the source contacts of two source follower transistors, optimizing the loading and unloading of gate-source capacitances to reduce the driver current needed.

Conclusion

Lukas Niederwieser is making strides in the field of digital power amplification, with innovative applications that aim to enhance efficiency and performance. His work at Panthronics AG reflects a commitment to advancing technology in this area.