Samsung Electronics Co., Ltd.

Jehyung Yoon

Sangik Cho

Dam Yun

Haneul Kim

Dongwoo Baek

Hyoungseok Oh

Hyoung-seok Oh

Dongjin Keum

Kyoung-Jin Lee

Kyoungjin Lee

Sang-Ik Cho

Jaekyu Kim

JeongHyeon Kim

Disclosed is a DC-to-DC converter which includes a first switching circuit connected between a power line receiving a DC voltage and an output terminal of the DC-to-DC converter and switched based on a first pulse control signal, a second switching circuit connected between the output terminal and a ground and switched based on a second pulse control signal, a pulse control signal generation circuit that receives a first level of a first voltage associated with an output voltage and a second level of a first reference voltage, wherein, in response to the second level being higher than the first level, the pulse control signal generation circuit is configured to generate the first pulse control signal to increase the output voltage and wherein, in response to the second level being lower than the first level, the pulse control signal generation circuit is configured to generate the second pulse control signal.

DC-to-DC converter with pulse skipping function and on-time control function, and electronic devices including the same

A voltage converter includes a converting circuit having an inductor connected to a switching node, a first switch element connected between the switching node and a ground voltage, and a second switch element connected between the switching node and an output node; and a switching control circuit configured to adjust a feedback voltage divided from an output voltage of the output node based on a current state of the inductor, and configured to generate switching control signals for charging the inductor with an input voltage and discharging a voltage charged in the inductor, based on a sensing signal based on a current of the inductor and the adjusted feedback voltage.

Voltage converter and power management device including the same

An operating method of a voltage converter, includes converting an input voltage to an output voltage and providing a load current corresponding to the output voltage in a pulse frequency modulation mode or a pulse width modulation mode, entering the pulse frequency modulation mode in response to an amount of the load current being less than or equal to a first threshold value, and entering the pulse width modulation mode in response to the amount of the load current being greater than a second threshold value.

Voltage converter, storage device including voltage converter, and operating method of voltage converter

Voltage converter with feedback adjustment and power management device including the same

A voltage converter includes a switch controller controlling operation of first second transistors to generate an output voltage from an input voltage while suppressing harmonics generated by the operation of the first an second transistors, wherein the first transistor includes an embedded snubber including a first damping resistor.

Voltage converter with embedded snubber for suppressing switching harmonics

A current mode PWM converter configured to maintain a duty ratio of a driving signal for driving a boost circuit boosting an input voltage to an output voltage when a frequency of a clock signal for generating the driving signal is varied.

Current mode PWM boost converter with frequency dithering

A hybrid charge pump including a hybrid circuit configured to snub an over shoot or under shoot present in an input pulse in a snubbing operation if a level of the pulse is a first level, store the pulse in a charging operation if the level of the pulse is a second level different from the first level, and generate a negative voltage from the stored pulse in a negative voltage generation operation.

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Seoul, South Korea

Jehyung Yoon