Samsung Electronics Co., Ltd.

Jeong-gyu Park

Hyung-suk Lee

Yeong-bok Choi

Hyung-wook Choi

Chang-hum Lee

An electronic apparatus includes an input unit to receive an input of DC power from an external adaptor, a battery unit to store the received DC power, a first control unit to drive the electronic apparatus using power of the battery unit or power received from the input unit in a first operation mode, and to drive the electronic apparatus using both the power of the battery unit and the power input from the input unit in a second operation mode, and a power control unit to prevent a mode of the electronic apparatus from being changed to the second operation mode according to a state of the battery unit.

Electronic apparatus and driving control method thereof

An electronic apparatus, a power supply apparatus, and a power supply method. The electronic apparatus may include a controller to provide a control signal to generate a multiphase signal through conversion of an input power and to receive a feedback of an output voltage that is generated using the multiphase signal; and a power supply including a plurality of unit converters having upper and lower switching elements of a half or full-bridge type, being operated by the control signal, and configured to provide the output voltage by the multiphase signal generated according to driving of the plurality of unit converters, wherein the power supply detects whether the upper and lower switching elements are simultaneously turned on in the plurality of unit inverters and turns off the operation of the unit converters according to the detection result.

Electronic apparatus, power supply apparatus, and power supply method

A power supply device to supply power to a micro server includes a plurality of power supplies configured to be redundant and supply DC power, and an output unit to output the DC power output from the plurality of power supplies to the micro server, wherein one of the plurality of power supplies operates in a master mode and the remaining power supplies operate in a slave mode, and wherein if a load of the micro server is less than or equal to a first predetermined load, at least one of the power supplies that operate in the slave mode does not output the DC power.

Power supply device, micro server having the same, and power supply method

A power supply device includes a power supply configured to supply DC power, and a PMIC configured to convert DC power provided from the power supply and to provide the converted DC power to an SoC, wherein the PMIC is provided with a plurality of rails configured to output different voltages.

Power supply device and micro server having the same

A method of supplying power from a solar cell module to a load includes measuring the output of the solar cell module, and controlling a power converter having a preset duty ratio to start operating in accordance with the measured output. Additionally, a power supply apparatus and a power supply system include a solar cell module having at least one solar cell to absorb sunlight, a power converter which converts power output from the solar cell module and supplies the converted power to a load, and a driving controller which measures the output of the solar cell module and controls the power converter having a preset duty ratio to start operating according to the measured output. Thus, electrical stress on the power converter is significantly decreased even though incident solar energy and/or the load is largely varied, so that the power converter may be stably driven to output the power.

Power supply apparatus having a power converter and solar cell module, power supply system and method of supplying power thereof

An apparatus and a method to charge a battery, the battery charging apparatus including: a battery unit which is chargeable; a battery charging unit which charges the battery unit; and a controller which adjusts a preset charge voltage of the battery unit based on a charge allowance capacity of the battery unit to have a predetermined value, and controls the battery charging unit to output the adjusted charge voltage and to charge the battery unit. Accordingly, the apparatus and method are capable of charging a battery based on a charge allowance capacity decreased owing to deterioration of the battery to safely use the battery and to extend a life of the battery.

Apparatus and method to charge a battery

A charging system for a mobile device such as a computer, and method of operating the same are disclosed. The computer is a system that includes: a system unit being provided with power output to an operation power supply terminal to carry out an operation; a battery unit outputting battery power to the operation power supply terminal; and a solar power unit being provided with feedback on a voltage of the operation power supply terminal and outputting solar power corresponding to a predetermined operational level of the system unit to the operation power supply terminal.

Computer system having solar power unit and method of controlling the same

A computer includes a CPU and a system unit, and further includes a power source which generates source power, a system driving power generator which converts the source power to system power and which provides power to the system unit, a CPU driving power generator which outputs driving power to drive the CPU, and a controller which selectively supplies the source power or the system power to an input terminal of the CPU driving power generator according to an operation mode of the CPU. Thus, a computer adjusts a level of power supplied to a CPU driving power generator according to a CPU mode and improves power efficiency, and includes a control method thereof.

Computer and control method thereof

A computer system, including: a battery pack that includes at least one battery cell and a temperature sensing unit to sense the temperature of the battery cell; and a system main body that includes a system unit to perform an operation with operating power received from the battery cell, an evaluation circuit connected with the temperature sensing unit to determine the temperature of the battery cell measured by the temperature sensing unit, and a system control unit to perform system protection control if the temperature of the battery cell determined by the evaluation circuit is equal to or more than a predetermined value.

Computer system mounted with battery pack for performing system control based on characteristics of the battery pack and system main body thereof

A computer system include: a system unit; a charging unit which outputs a charging current to a battery unit for supplying electric power to the system unit; and a first temperature compensating unit which selectively adjusts the level of the charging current so that the temperature of the charging unit is substantially maintained within a predetermined range.

Computer system with charging unit and control method thereof

A battery module usable with a computer system includes a circuit to generate a power, and a controller to output the power of the circuit to an external device, for example, the computer system, and to prevent the power from being output from the circuit to the external device according to an external signal received from the external device. The computer system includes a circuit to receive the power from the battery module, a second circuit to generate another power other than the power of the battery module, and a second controller to generate a detection signal as the external signal according to existence of the another power of the second circuit. The circuit may include an adapter to receive an extern power from an external power source and a battery to receive the external power from the adapter or to generate an auxiliary power and the power.

Battery module, computer system and power supply method thereof

A battery charging apparatus which includes: an adapter which converts a voltage of an external electric power to a charging voltage of a voltage level corresponding to the battery, to charge the battery; and a controller which communicates with the battery to determine a charged state of the battery, and which controls the adapter to charge the battery based on the determination.

Battery charging apparatus, control method thereof, and battery charging control apparatus for charging a battery without an external device

A computer includes a CPU and a system unit, and further includes a power source, a system driving power generator which converts source power input from the power source to be outputted to the system unit, a CPU driving power generator which outputs driving power to drive the CPU, and a controller which selectively supplies either the source power from the power source or the system power converted from the system driving power generator to an input terminal of the CPU driving power generator according to an operation mode of the CPU. Thus, a computer adjusts a level of power supplied to a CPU driving power generator according to a CPU mode and improves power efficiency, and includes a control method thereof.

A power converting apparatus includes a power input part to which power is input; a power converting part converting the power input through the power input part; a converting current detecting part detecting a converting current of the power converted in the power converting part; a converting voltage detecting part detecting a converting voltage of the power converted in the power converting part; and a controlling part controlling the power converting part so that a value of power calculated by multiplication of the converting current detected in the converting current detecting part by the converting voltage detected in the converting voltage detecting part falls within a predetermined range of a preset reference value.

Power converting apparatus, electronic apparatus comprising the same and power converting method

A computer having a CPU which operates with at least two operation modes, comprising: a mode signal output unit outputting an operation mode signal corresponding to the operation mode of the CPU; a CPU power supply supplying power having a voltage level corresponding to the operation mode signal outputted from the mode signal output unit to the CPU; and a control unit controlling the CPU power supply to decrease an equivalent series resistance value to power outputted from the CPU power supply for a predetermined period of time for delay from when switching the operation mode of the CPU has been sensed, based on the operation mode signal outputted from the mode signal output unit.

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Yongin-si, South Korea

Jeong-gyu Park