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STNRGPF01 Fiches technique(PDF) 6 Page - STMicroelectronics

No de pièce STNRGPF01
Description  Inrush current control
PDF  40 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STNRGPF01 Fiches technique(HTML) 6 Page - STMicroelectronics

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STNRGPF01 control architecture
STNRGPF01
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DocID030377 Rev 2
Thus the master PWM signal is generated by comparing the analog PI output Vctrl and
a triangular wave Vtriang at switching frequency. Finally, an interleaving operation is
performed and three 120° phase-shifted PWM signals (180° for two channels only) drive the
three power switches.
Moreover, the digital section includes the input voltage and load feed-forward for fast
transient response when the main voltage changes suddenly or a load step current occurs,
preventing large over or undervoltage on the output capacitor Cout.



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