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Dual-Input Switched Capacitor Converter Suitable for Wide Voltage gain Range

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Figure

Fig. 1. Theoretical efficiency limit vs conversion ratio (V in /V out ) for step-down  Inductive (ISC) and Capacitive (CSC) Switching Converters
Fig. 3.  Possible connections for the flying capacitor in SISO-CSC.
Fig. 4.  2 4  possible configurations for two flying capacitors in SISO-CSC.
Figure  6  shows  one  particular  configuration  generated  by  using two input power supplies and two flying capacitors
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