Abstract: An auxiliary power supply device can include an auxiliary power source configured to provide auxiliary power. An auxiliary power state detection circuit electrically can be coupled to an input or an output of the auxiliary power source and an auxiliary power supply circuit that can be electrically coupled to the output of the auxiliary power source, where the auxiliary power supply circuit can be configured to provide the auxiliary power to a target system when power supplied to the target system by a main power source is abnormal. Related systems are also disclosed.

Abstract: A multi-stacked structure of semiconductor packages includes a plurality of substrates stacked in a vertical direction, semiconductor packages mounted on each substrate of the plurality of the substrates, a heat release column extending commonly through the plurality of the substrates and overlapping at least one semiconductor package serving as a heat generation source among the semiconductor packages in the vertical direction, and a heat dissipation part thermally connected to one end of the heat release column.

Abstract: A multi-stacked structure of semiconductor packages includes a plurality of substrates stacked in a vertical direction, semiconductor packages mounted on each substrate of the plurality of the substrates, a heat release column extending commonly through the plurality of the substrates and overlapping at least one semiconductor package serving as a heat generation source among the semiconductor packages in the vertical direction, and a heat dissipation part thermally connected to one end of the heat release column.

Abstract: A secondary memory device includes a substrate configured to receive power from an external power source, at least one of non-volatile memory devices mounted on the substrate, a control device mounted on the substrate to control the non-volatile memory devices, and a secondary battery electrically connected to the substrate and configured to supply second power to the substrate when a power supply from the external power source is abnormally stopped.

Abstract: A user system is provided which includes a storage device and an auxiliary power device configured to supply a power to the storage device, wherein the auxiliary power device includes a first one direction device configured to supply a supply voltage from an external power supply to the storage device, a charging unit configured to be charged by the external power supply, a second one direction device configured to selectively supply an output voltage of the charging unit to the storage device, a voltage detector configured to detect a level of the output voltage of the charging unit and to output a first control signal to the storage device, and a switching unit connected between the charging unit and the second one direction device and configured to operate in response to a second control signal from the storage device.

Abstract: An auxiliary power supply device can include an auxiliary power source configured to provide auxiliary power. An auxiliary power state detection circuit electrically can be coupled to an input or an output of the auxiliary power source and an auxiliary power supply circuit that can be electrically coupled to the output of the auxiliary power source, where the auxiliary power supply circuit can be configured to provide the auxiliary power to a target system when power supplied to the target system by a main power source is abnormal. Related systems are also disclosed.

Abstract: A user system is provided including a plurality of flash memory devices and a memory controller connected to the flash memory devices through a plurality of channels. The memory controller includes a voltage regulator configured to supply a power of the flash memory devices and a compensation unit configured to supply an additional power to the flash memory devices when a power required by the flash memory devices exceeds a predetermined level. The compensation unit includes a resistor unit connected to an output terminal of the voltage regulator and input terminals of the flash memory devices and a charging unit connected to input terminals of the flash memory devices. The charging unit is configured to supply an additional power to the flash memory devices according to voltages of input terminals of the flash memory devices.

Abstract: A user system is provided which includes a storage device and an auxiliary power device configured to supply a power to the storage device, wherein the auxiliary power device includes a first one direction device configured to supply a supply voltage from an external power supply to the storage device, a charging unit configured to be charged by the external power supply, a second one direction device configured to selectively supply an output voltage of the charging unit to the storage device, a voltage detector configured to detect a level of the output voltage of the charging unit and to output a first control signal to the storage device, and a switching unit connected between the charging unit and the second one direction device and configured to operate in response to a second control signal from the storage device.

Abstract: A user system is provided including a plurality of flash memory devices and a memory controller connected to the flash memory devices through a plurality of channels. The memory controller includes a voltage regulator configured to supply a power of the flash memory devices and a compensation unit configured to supply an additional power to the flash memory devices when a power required by the flash memory devices exceeds a predetermined level. The compensation unit includes a resistor unit connected to an output terminal of the voltage regulator and input terminals of the flash memory devices and a charging unit connected to input terminals of the flash memory devices. The charging unit is configured to supply an additional power to the flash memory devices according to voltages of input terminals of the flash memory devices.

Abstract: A secondary memory device includes a substrate configured to receive power from an external power source, at least one of non-volatile memory devices mounted on the substrate, a control device mounted on the substrate to control the non-volatile memory devices, and a secondary battery electrically connected to the substrate and configured to supply second power to the substrate when a power supply from the external power source is abnormally stopped.