Samsung Electronics Co., Ltd.

Min Shik Seok

Je Kook Kim

Seong Wook Hwang

Sang-Yong Park

Chan-Woo Park

Chan Woo Park

Young Hoon Lee

Byung Chul Jeon

Seon Mi Jeon

An integrated circuit configured to detect a variation in a supply voltage using a phase of an input clock signal dependent on the variation in the supply voltage may include a clock delay circuit configured to delay the input clock signal output from a clock generator using each of different delay cell chains and generate a first delay clock signal and a second delay clock signal; and a phase controller configured to control a first phase so that a difference between the first phase and a second phase is 180 degrees, the first phase being a phase of the first delay clock signal, the second phase being a phase of the second delay clock signal.

Integrated circuit and computing device having the same

A vibration control device configured to provide a haptic function and control a vibration device driven by a sine wave. The vibration control device includes a sampling frequency signal generator and a sine wave synthesizer. The vibration control device is configured to generate a sampling frequency signal using a clock signal, wherein the sampling frequency signal is related to an operation cycle of a digital filter; and the sine wave synthesizer includes the digital filter. The digital filter is configured to adjust at least one of a cycle of the sine wave and amplitude of the sine wave using the sampling frequency signal and a plurality of coefficients of the digital filter; and generate an adjusted sine wave.

Vibration control device and computing device including the same

A digital buck-boost conversion circuit includes an analog-to-digital converter configured to convert an output voltage signal into a digital signal, a pulse period control block configured to output a pulse period control signal based on degrees of scattering at different frequencies of the digital signal, a pulse generation block configured to output a pulse based on the pulse period control signal, and a buck-boost converter configured to convert the pulse into the output voltage signal.

Digital buck-boost conversion circuit and method of operating the same

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Suwon-si, South Korea

Min Shik Seok