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1 International Journal of Microelectronics and Computer Science

1 2018

1 Jankowski M.

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Improvements of high-voltage trapezoidal waveform edge-rounding circuit

100%

Jankowski M.

tom Vol. 9, nr 3

93--100

This paper introduces a solution to a design problem caused by necessity of electromagnetic noise reduction in simple close-range wireless command and control systems, including Radio-frequency identification (RFID) systems. Trade-off between simplicity of data transmission, detection and decoding on one side vs. presence of high frequency harmonics in transmitted signals on the other makes some designers choose approach in which trapezoidal waveforms are used instead of rectangular ones. Moreover, edges of trapezoidal waveforms are additionally rounded to further limit presence of higher harmonics and thus to comply to EMI regulations and requirements. The paper proposes a solution based on a reimplementation of a high-voltage structure already proposed by the author, but implemented with use of different semiconductor technology process. Utilization of this new process and devices available in this technology makes possible significant increase of the circuit operation quality.