Silicon Works Co., Ltd.

Lx Semicon Co., Ltd.

Lg Chem, Ltd

Lg Energy Solution, Ltd.

Soongsil University

Kyu Ho Kim

Ki Suk Cho

Seung Jun Choi

Young Ho Seo

Yong Ju Seon

Ju Pyo Hong

Jong Chan Kim

Hee Jin Lee

Dong Gil Jeong

Jin Hee Jeon

Ki Young Lee

Jae Wan Kim

Won Gon Kim

Heung Lyeol Lee

Il Kwon Kim

Myoung Su Song

Kyoung Choon Min

Deog Soo Kim

Ho Yul Choi

Won Joon Hwang

Tae Woo Kim

Jeong Hyun Yi

Ju Hyun Lee

Sung Gon Kim

Ho Jeong Jin

Yong Gu Shin

Sun Jun Lee

Chang In Park

Jongsu Lim

Seung Hun Shin

Chun Sik Jung

Jin Kook Yun

Jin Yong Jeon

A system for driving an actuator which is capable of providing constant resolution regardless of a type of an actuator according to an aspect of the present invention includes an actuator driving circuit configured to generate a driving current for an operating actuator and output the generated driving current to the operating actuator, a current sensing unit configured to sense a current of the operating actuator and generate a sensing signal, and a gain adjustment unit configured to calculate a gain on the basis of a first maximum driving current range of the operating actuator and a second maximum driving current range of a reference actuator and change the sensing signal on the basis of the gain. A signal generated based on the second sensing signal is input to the actuator driving circuit.

System for driving actuator

The present disclosure relates to a wireless battery management system which ensures stability when obtaining battery data through wireless communication. The battery management system includes a manager node operating a primary channel and a secondary channel based on wireless communication and obtaining battery data from a monitor node by using the primary channel or the secondary channel and a monitor node connected to a battery module to collect battery data including one or more of a current, a voltage, a temperature, and self-diagnosis data of the battery module, transmit the collected battery data to the manager node through the primary channel, and when the transmission of the battery data through the primary channel fails, transmit the battery data to the manager node through the secondary channel.

Wireless battery management system, node for wireless communication, and method of transmitting data

A blur compensation circuit of an optical image stabilization device includes a movement detection circuit configured to provide a movement detection signal corresponding to a movement of a photographing module; a position detection circuit configured to provide a position signal of an actuator for driving the photographing module; a delta-sigma conversion circuit configured to generate control data corresponding to a deviation between the movement detection signal and the position signal, perform a delta-sigma conversion on the control data, and output driving data corresponding to a result of the delta-sigma conversion; and a driving circuit configured to control driving of the actuator by the driving data.

Blur compensation circuit for optical image stabilization device

The present disclosure relates to an oscillator including a charge and discharge circuit which generates a first oscillation signal according to a clock signal using a first constant current and a second oscillation signal according to an inverted clock signal using a second constant current, an integrating circuit which generates a first comparison voltage reflecting an amount of change in the first oscillation signal based on a comparison reference voltage and a second comparison voltage reflecting an amount of change in the second oscillation signal based on the comparison reference voltage, and a comparison circuit which generates the clock signal and the inverted clock signal according to a result of comparison between the first oscillation signal and the first comparison voltage and a result of comparison between the second oscillation signal and the second comparison voltage.

Oscillator and method of driving the same

Disclosed herein are a frequency generator, which is provided with a frequency automatic correction function and is capable of reducing a frequency test time and a correction time, and a method of correcting a frequency thereof. The frequency generator includes an oscillator configured to generate an output frequency signal according to a frequency control signal, and a frequency corrector configured to generate the frequency control signal for controlling the output frequency of the oscillator using a reference frequency signal.

Frequency generator and method of calibrating frequency thereof

The present disclosure relates to a wireless battery management system, and more particularly, to a wireless battery management system, a node for wireless communication, and a method of transmitting data, which ensure stability and efficiency when obtaining battery data through wireless communication. A wireless battery management system includes a manager node obtaining battery data from a plurality of monitor nodes by using a first channel and a second channel which are communication channels based on wireless communication, a first monitor node collecting first battery data and transmitting the first battery data to the manager node through the first channel during a first dedicated slot, and a second monitor node collecting second battery data and transmitting the second battery data to the manager node through the second channel during the first dedicated slot.

Disclosed are a communication method between a master controller and slave controllers, a slave controller for the communication method, and a battery management system using the communication method and the slave controller, in which the master controller receives safety information about battery cells through a plurality of channels even when each of a plurality of slave controllers includes only one micro controller unit, thereby minimizing the increase in the cost and enhancing the safety of the battery management system. The communication method includes performing bidirectional communication between a master controller and first to N(where N is an integer equal to or more than two) slave controllers through a first communication channel, and receiving, by the master controller, an indication signal through a second communication signal via the first to Nslave controllers.

Communication method between master controller and slave controller, slave controller for the same, and battery management system using the same

A wireless battery management system for quickly establishing a short-range wireless network. The wireless battery management system includes a manager node storing network configuration information when operating in a first mode, and when operating in a second mode, checking one or more monitor nodes being joined in a short-range wireless network using the network configuration information to establish the short-range wireless network along with each of the checked one or more monitor nodes and one or more monitor nodes storing joining information for joining in the short-range wireless network when operating in the first mode, and when operating in the second mode, joining in the short-range wireless network on the basis of the joining information to transmit battery data to the manager node.

Wireless battery management system, node for wireless communication, and network establishment method

A dynamic code extraction-based automatic anti-analysis evasion and code logic analysis apparatus, includes: a recognition module that extracts a DEX file and a SO file by unpacking an execution code of an application and recognizes an analysis avoidance technique by comparing a signature which is included in the extracted DEX file and SO file; a instrumentation module that extracts a code to be analyzed from a byte code configuring the DEX file and a native code configuring the SO file, compares the extracted code with the data stored in a database, and outputs a code excluding an anti-analysis technique as a log file; and a deobfuscation module that deobfuscates an obfuscated code which is included in the APK on the basis of the output log file and generates an APK file in which an obfuscation technique is released on the basis of the deobfuscated code.

Dynamic code extraction-based automatic anti analysis evasion and code logic analysis apparatus

A regulator control circuit includes a regulator configured to provide an output voltage by regulation using one of an input voltage and a dropped input voltage, to a load; and a heat dissipation circuit configured to sense a change in the input voltage, and provide the dropped input voltage to the regulator when the input voltage is sensed to be equal to or higher than a preset level.

Heat dissipation circuit and regulator control circuit including the same

Growing community of inventors

Daejeon, South Korea

Kyu Ho Kim