摘要:
A semiconductor device is provided. The semiconductor device may include a frame portion on which at least one semiconductor chip is arranged; a plurality of leads electrically connected to the semiconductor chip; and a mold portion formed on the frame portion to surround a part of the frame portion on which the semiconductor chip and the plurality of leads are arranged, wherein a gap between closest portions of the respective leads is at least 2.9 mm.
摘要:
A power circuit part, a power control method and a display apparatus having the same control an output DC voltage supplied as operating power to elements such as a display to be variably output at different levels according to a voltage level of input AC power. The power circuit part includes a rectifier configured to rectify a current of an input alternating current (AC) power into a direct current (DC); and a power factor corrector configured to output a DC voltage output set at a DC voltage level corresponding to an AC voltage level of the input AC power, and supplies the DC voltage as operating power to the electronic apparatus, wherein the DC voltage level is selected from a plurality of target DC voltage levels each corresponding to at least one of a plurality of AC voltage level ranges.
摘要:
A noise filter (100) and an electronic device including the same are disclosed. The noise filter is configured to suppress noise generated in a power line or a ground line of a power circuit unit provided in an electronic device. The electronic device including: at least one coil (200) connected to the power line and the ground line; and a core (300) around which the coil is wound, a common core portion (310) configured to suppress common mode noise generated at the ground line and a normal core portion (330) configured to suppress normal mode noise generated at the power line are formed as a single body. Thus, the common mode noise filter and the normal mode noise filter are integrated with each other to thereby improve productivity and reduce production costs.
摘要:
A power supply, a power control method and a display apparatus having the same, for controlling a standby mode, are provided. The power supply of an electronic apparatus includes: a rectifier configured to rectify a current of alternating current (AC) power input as input power, into a direct current (DC); a power factor correction (PFC) circuit configured to correct a power factor of a DC voltage converted by the rectifier; a switching circuit configured to convert the DC voltage output by the PFC circuit into a predetermined operating voltage and a standby voltage and supply the operating voltage and the standby voltage to the electronic apparatus; and an output controller configured to control the PFC circuit and the switching circuit in order to convert the DC voltage into the predetermined operating voltage and standby voltage by the switching circuit and to supply the operating voltage and the standby voltage to the electronic apparatus.
摘要:
An electronic apparatus and a power controlling method thereof are provided. The electronic apparatus includes a system unit supplied with power to conduct an operation, and a power supply unit including a power control unit controlling output of standby power, and supplying the standby power to the system unit. The power control unit includes a pulse width modulation (PWM) generation unit generating a PWM signal and a first switching unit switched on/off based on an external input signal to selectively supply power to the PWM generation unit. Thus, power consumption of the electronic apparatus in the standby mode is minimized to facilitate conformance with power regulations in accordance with an energy saving policy.
摘要:
Provided are an apparatus and method thereof for providing standby power to a visual display, the apparatus including: a light collection unit which is operable to receive light and output a charging current; a battery which is operable to receive the charging current and providing the standby power to the visual display; and a controller which determines whether the battery has a voltage below a predetermined value, wherein if the voltage is below the predetermined value, the controller controls the battery to receive the charging current from the light collection unit, and wherein if the voltage is not below the predetermined value, the controller controls the battery to provide the standby power to the visual display.
摘要:
A direct current (DC) to DC converter is provided. The DC to DC converter includes: a transformer (T 0 ) which comprises a primary winding (11) which is connected in series with an input voltage and a secondary winding (12) which generates induced current when the input voltage is applied to the primary winding; a switching part (10) which is connected to the primary winding and performs a switching operation according to a predetermined control signal; a first delay part (20) which delays an increasing rate of voltage between open nodes according to a turned-off state of the switching part and supplies a discharge current when the switching part is turned-on; and a second delay part (30) which delays current flow in the switching part when the first delay part discharges the current when the switching part is turned-on.
摘要:
An electronic apparatus and a power controlling method thereof are provided. The electronic apparatus includes a system unit supplied with power to conduct an operation, and a power supply unit including a power control unit controlling output of standby power, and supplying the standby power to the system unit. The power control unit includes a pulse width modulation (PWM) generation unit generating a PWM signal and a first switching unit switched on/off based on an external input signal to selectively supply power to the PWM generation unit. Thus, power consumption of the electronic apparatus in the standby mode is minimized to facilitate conformance with power regulations in accordance with an energy saving policy.
摘要:
A power supply, a power control method and a display apparatus having the same, for controlling a standby mode, are provided. The power supply of an electronic apparatus includes: a rectifier configured to rectify a current of alternating current (AC) power input as input power, into a direct current (DC); a power factor correction (PFC) circuit configured to correct a power factor of a DC voltage converted by the rectifier; a switching circuit configured to convert the DC voltage output by the PFC circuit into a predetermined operating voltage and a standby voltage and supply the operating voltage and the standby voltage to the electronic apparatus; and an output controller configured to control the PFC circuit and the switching circuit in order to convert the DC voltage into the predetermined operating voltage and standby voltage by the switching circuit and to supply the operating voltage and the standby voltage to the electronic apparatus.