Switch pairs between resistor network and high/low DC converter comparator input

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United States of America Patent

PATENT NO 9048728
APP PUB NO 20140097810A1
SERIAL NO

13647156

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Abstract

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Two hysteresis levels, a high level and a low level, may be used to set a period (and the switching frequency) of the output voltage of a DC-DC converter, as well as the output ripple of the converter. These two thresholds may be changed using pairs of switches. By controlling the sequence and the duration of the on-time of the switches, spectral spurs in the output can be controlled and the amplitude and the frequency band of interest can be reduced. Additional spur reduction may be possible by randomizing the control of the switches.

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Patent Owner(s)

  • TEXAS INSTRUMENTS INCORPORATED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Haroun, Baher S Allen, US 129 1426
Parthasarathy, Harikrishna Bangalore, IN 9 26
Polarouthu, Sudhir Andhra Pradesh, IN 11 72
Veeramreddi, Srinivas Venkata Saidabad, IN 17 33

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