Halil Kerim Yildirim

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Low ON-resistance of advanced superjunction (SJ) and GaN-on-Si transistors is of great importance in power converters, however, the anomalous loss in their output capacitance (C OSS ) severely limits their performance. In this work, we use an energy-orient ...

AlGaN/GaN devices have shown outstanding potential for power conversion applications. However, despite the recent progress, their performance is still far from what the material can offer in terms of on-resistance and breakdown voltage. To address this cha ...

Soft-switching power converters based on wide-band-gap (WBG) transistors offer superior efficiency and power density advantages. However, at high frequencies, loss behavior varies significantly between different WBG technologies. This includes losses relat ...

Chip-scale integration is a key enabler for the deployment of photonic technologies. Coherent laser ranging or FMCW LiDAR, a perception technology that benefits from instantaneous velocity and distance detection, eye-safe operation, long-range, and immunit ...

Multi-channel power devices, in which several AlGaN/GaN layers are stacked to achieve multiple two-dimensional electron gases (2DEGs), have recently led to a significant increase in the device conductivity while maintaining high breakdown voltage, resultin ...

High voltage arbitrary waveform generator (1) comprising: - a voltage-controlled oscillator (3) arranged to output a clock signal (CLK) and an inverted clock signal (Formula (I)) at a frequency determined by at least one control voltage (Formula (II)); - a ...

Halil Kerim Yildirim

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Investigation on Output Capacitance Losses in Superjunction and GaN-on-Si Power Transistors

High-Performance Enhancement-Mode AlGaN/GaN Multi-Channel Power Transistors

Comparison of Wide-Band-Gap Technologies for Soft-Switching Losses at High Frequencies (vol 35, pg 12595, 2020)

Comparison of Wide-band-gap Technologies for Soft-Switching Losses at High Frequencies

Photonic-electronic integrated circuit-based coherent LiDAR engine

Conformal Passivation of Multi-Channel GaN Power Transistors for Reduced Current Collapse

High voltage arbitrary waveform generator