Load current-sensing circuit integrated in high-frequency PWM/PFM hybrid DC–DC buck converter

An average current-sensing circuit integrated in a hybrid DC–DC buck converter is presented. Both the high-side and the low-side switch currents are fully sensed by detecting the filtered smooth voltage of the switch node, which maintains a substantially constant mode changing point and seamless tra...

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Veröffentlicht in:	Electronics letters 2014-08, Vol.50 (18), p.1310-1312
Hauptverfasser:	Yuan, Bing, Lai, Xinquan, Liu, Yuxin
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Buck converters constant mode changing point Constants Convertors DC‐DC power convertors duty cycles Electric circuits Electric potential Electrical engineering. Electrical power engineering Electrical machines Exact sciences and technology filtered smooth voltage high‐frequency hybrid DC–DC applications high‐side switch currents hybrid DC–DC buck converter load current‐sensing circuit low‐side switch currents PFM Power electronics, energy conversion and sustainability Pulse duration modulation Pulse frequency modulation PWM PWM power convertors switch node Switches switching convertors Voltage
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