According to the present invention, the charge relay enhancer and the solar cell system including the enhancer comprise: charge induction and pumping devices (120, 130) for inducing charge by using one power-source voltage from among two power-source voltages (V+, V-) of mutually different polarities selected in response to a control signal (CON), and for pumping the induced charge; and a charge-pathway-selecting device (110) for relaying the charges, which have been input at input terminals (In), to the charge induction and pumping devices (120, 130) via two input/output terminals (I/O1, I/O2), and for outputting the charges, which have been pumped at the charge induction and pumping devices (120, 130), to output terminals (Out) after respective receipt via the two input/output terminals (I/O1, I/O2).
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