Abstract:
A dryer includes a main body, a drying chamber provided inside the main body and configured to accommodate objects to be dried, a conveying unit configured to convey the objects to be dried, a sensor unit configured to sense information on states of the objects to be dried, and a control unit configured to control the conveying unit to move the objects to be dried based on the information sensed by the sensor unit.
Abstract:
The present disclosure relates generally to a switch driving circuit and power factor correction circuit having the same, and more particularly, to a technology to provide a negative offset using Zener diodes to prevent malfunctions in driving a switch. The switch driving circuit to operate a switch implemented with a Field Effect Transistor (FET) includes a first Zener diode connected to a control input end of the switch; a capacitor connected in parallel with the first Zener diode; and second and third Zener diodes for providing a negative offset to fix a voltage applied between the gate and source of the switch to a negative value.
Abstract:
A magnetic cooling apparatus including a plurality of magnetic regenerators including a plurality of magnetocaloric materials to emit heat when magnetized and to absorb heat when demagnetized. The magnetic regenerators are rotatably disposed on a circumference having a predetermined radius, at least one coil is disposed on the circumference and coupled to the magnetic regenerators, and a plurality of permanent magnets is provided inside and outside the circumference to generate a magnetic field to magnetize or demagnetize the magnetic regenerators. The at least one coil interacts with the magnetic field generated by the permanent magnets to rotate the magnetic regenerators. The coil interacting with the magnetic field to magnetize or demagnetize the magnetic regenerators is coupled to the magnetic regenerators such that the magnetic regenerators reciprocate or rotate, thereby minimizing a size of the magnetic cooling apparatus, relative to the use of a motor. In addition, a member to switch a channel of a heat transfer fluid directly performs heat transfer between the heat transfer fluid and an external fluid, thereby minimizing heat loss.
Abstract:
A display driver integrated circuit (IC) includes a first driver block, a second driver block, and a transmission control circuit. The transmission control circuit is configured to deserialize pixel data groups of a serial data packet and to alternate sending the deserialized pixel data groups to the first driver block and the second driver block. Each of the pixel data groups includes pixel data for at least one pixel.
Abstract:
A dryer includes a main body, a drying chamber provided inside the main body and configured to accommodate objects to be dried, a conveying unit configured to convey the objects to be dried, a sensor unit configured to sense information on states of the objects to be dried, and a control unit configured to control the conveying unit to move the objects to be dried based on the information sensed by the sensor unit.
Abstract:
A fusing unit and an image forming apparatus to form an image on a recording medium including a fusing unit are provided. The image forming apparatus includes a heating member having a surface divided into a plurality of heating regions and heating the recording medium, and a pressurizing member to apply pressure to the recording medium, the fusing unit fusing the image to the recording medium by applying heat and pressure to the recording medium, a driving unit to supply rotational force to the pressurizing member, and a power supply to supply power to the heating member and the driving unit, wherein the heating regions have different heating values per unit area. The image forming apparatus prevents overheating of a paper-contact heating region without idling the fusing unit in order to radiate heat accumulated in the paper-contact heating region.
Abstract:
Provided are a dryer and method for controlling the same, which may appropriately and efficiently dry objects thrown into a receiving space by using high frequency electric fields and heated air. In accordance with one aspect of the present disclosure a dryer includes a main body, a drum rotationally placed inside the main body, a driver provides rotational force to the drum, an electrode part produces an electric field inside the drum, a power supplier supplies power to the electrode part, an air heater heats air, a blower supplies heated air into the drum and a controller controls the power supplier to block power supplied to the electrode part depending on a dried state of an object contained in the drum, controls the driver to rotate the drum, and controls the air heater and the blower to supply heated air into the drum.
Abstract:
It is an aspect of the present disclosure to provide a motor driving apparatus, and a method of controlling the same. In accordance with one aspect of the present disclosure, the motor driving apparatus includes an inverter configured to supply driving power to a motor; a sensing unit configured to sense a DC voltage supplied to the inverter and a driving current supplied from the inverter to the motor; and a controller configured to compensate for an iron loss and a copper loss by calculating a loss of the motor based on the sensed DC voltage and driving current and controlling the inverter to adjust the driving current based on the calculated loss of the motor.
Abstract:
A washing machine which performs a washing operation by heating water, a detergent, or a wash liquid using a dielectric heating method and a method of controlling the washing machine. The washing machine may include a water supply portion which supplies a wash liquid including water and a detergent, a power supply portion which supplies alternating current (AC) power, and an electric field forming portion which forms an electric field between a first electrode portion and a second electrode portion according to the AC power to heat the supplied wash liquid.
Abstract:
A terminal may be provided with a magnetic regenerator unit using a magnetocaloric effect of magnetocaloric materials and a magnetic cooling system having the same. By a circular magnetic regenerator structure capable of evenly flowing heat transfer fluid and magnetic field and the flow of the heat transfer fluid being changed in the same way, and a magnetic band having a relative permeability, similar to a relative permeability of the magnetic regenerator, high efficiency of a flux generator may be obtained while reducing torque of a rotator. Power consumption for driving may be reduced due to the reduction of the cogging torque, and the magnetic band may be manufactured at a low cost by using inexpensive iron powder.