Abstract: The present disclosure relates to a day-night photovoltaic system. More specifically, power supplied to a solar panel from a DC power supply part is output as a final output power PV together with power produced by the solar panel during the daytime, and is output as the final output power together with an ultra-high frequency wavelength generated by the sun explosion and induced to the solar panel during the night time. This provides the effects of stably supplying the power not only during the daytime but also during the night time.

Abstract: Provided is an alternating current (AC) and direct current (DC) power supply device in which normal power and power of a solar cell is used to supply not only AC power but also DC power, particularly, power of a solar cell is first supplied as DC power or is charged in a battery, and after battery charging, residual power is converted to AC power via an inverter so as to replace normal AC power or to transmit AC power to the outside. Accordingly, an SMPS power supply method in which AC and DC power are supplied at the same time may be provided, and moreover, power of a solar cell may be effectively used.

Abstract: The AC-DC power booster includes an electromagnetic interference (EMI) filter circuit that is included to convert alternating current (AC) power from among applied AC power and direct current (DC) power, to DC power to be output; a power factor correction (PFC) circuit that is connected to the EMI filter circuit and stabilizes an output voltage; and a switching mode power supply (SMPS) circuit that is connected to the PFC circuit and is capable of generating AC and DC power at the same time; a maximum power point tracking (MPPT) circuit that applies the voltage output from the SMPS circuit between a drain and a source of a switching device; a battery that is charged by receiving power from a solar light energy source connected to the MPPT circuit; and an inverter that operates an AC home appliance with the power received in the battery.

Abstract: The AC-DC power booster includes an electromagnetic interference (EMI) filter circuit that is included to convert alternating current (AC) power from among applied AC power and direct current (DC) power, to DC power to be output; a power factor correction (PFC) circuit that is connected to the EMI filter circuit and stabilizes an output voltage; and a switching mode power supply (SMPS) circuit that is connected to the PFC circuit and is capable of generating AC and DC power at the same time; a maximum power point tracking (MPPT) circuit that applies the voltage output from the SMPS circuit between a drain and a source of a switching device; a battery that is charged by receiving power from a solar light energy source connected to the MPPT circuit; and an inverter that operates an AC home appliance with the power received in the battery.

Abstract: Provided is an alternating current (AC) and direct current (DC) power supply device in which normal power and power of a solar cell is used to supply not only AC power but also DC power, particularly, power of a solar cell is first supplied as DC power or is charged in a battery, and after battery charging, residual power is converted to AC power via an inverter so as to replace normal AC power or to transmit AC power to the outside. Accordingly, an SMPS power supply method in which AC and DC power are supplied at the same time may be provided, and moreover, power of a solar cell may be effectively used.

Abstract: Provided is an alternating current (AC) and direct current (DC) power supply device in which normal power and power of a solar cell is used to supply not only AC power but also DC power, particularly, power of a solar cell is first supplied as DC power or is charged in a battery, and after battery charging, residual power is converted to AC power via an inverter so as to replace normal AC power or to transmit AC power to the outside. Accordingly, an SMPS power supply method in which AC and DC power are supplied at the same time may be provided, and moreover, power of a solar cell may be effectively used.