Samsung Electronics Co., Ltd.

Yeonsang Yun

Dohun Kim

Chan-Gi Park

Jungjoon Kim

Tae-Wook Ham

Kyujae Jang

Han Min Cho

Heecheol Ahn

Minkwon Jeong

Yikyu Min

An electronic device includes a battery, a plurality of capacitors, a converter that receives power from the battery and charges each of the plurality of capacitors to different voltages based on the power, a plurality of switches that switch a first path and a second path of each of the plurality of capacitors, and a controller. The controller selects a first switch among the plurality of switches based on a received signal, and controls the first switch such that a path of a capacitor connected to the first switch is switched from the first path to the second path, and the first path is a path which electrically connects each of the plurality of capacitors to the converter, the second path is a path which electrically connects each of the plurality of capacitors and a power amplifier (PA).

Electronic device including power management integrated circuit and operating method thereof

A circuit board is provided in which a transmission loss is reduced. The circuit board includes a first layer; a transmission line disposed on the first layer; and a second layer stacked with the first layer. The second layer includes a first region, which is constructed of a first material, corresponding to a position of the transmission line, and a second region, which is constructed of a second material having a permittivity that is different from that of the first material, corresponding to the position of the transmission line.

Circuit board for reducing transmitting loss and electronic device therewith

Growing community of inventors

Gyeonggi-do, South Korea

Yeonsang Yun