M. Jankowski, A. Napieralski
Lodz University of Technology, Poland
pp. 258 - 261
Keywords: waveform, generator, trapezoidal, edge-rounding
An approach to design low-voltage and high-voltage trapezoidal waveform generators with edge-rounding ability is described. The paper presents circuits able to produce edge-rounded trapezoidal waveforms, endowed with several means of waveform parameter adjustments. Signal paths in the presented circuits are very short. Most of additional circuitry is placed mainly outside signal paths. Circuit solutions as well as simulational test results are presented and discussed. Circuit structures presented in this paper are results of authors’ research on possibilities of current-mode circuitry application in HV integrated circuits. The developed circuits show ability of providing functionality while having extremely short signal paths. Obtained functionalities, like signal shape, slew-rate control and harmonics attenuation enables application of the new circuits in industry-intended HV systems for wireless communication purposes. Still, authors can see possibility of enhancing functionality of the presented circuits with further application of HV current-mode signal processing potential. For example, HV voltage buffer for similar applications has already been already patented. Specifics asset of presented solutions enable elaboration of complete waveform generation and conditioning signal paths for modern HV integrated systems, with special regard to SoI processes.