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    • 3. 发明授权
    • Triangular wave generator and method generating triangular wave thereof
    • 三角波发生器及其三角波产生方法
    • US08604845B2
    • 2013-12-10
    • US13488337
    • 2012-06-04
    • Hui Dong LeeJaewon NamYoung Kyun ChoJong-Kee KwonYil Suk YangJongdae Kim
    • Hui Dong LeeJaewon NamYoung Kyun ChoJong-Kee KwonYil Suk YangJongdae Kim
    • H03K4/06
    • H03K4/501
    • Disclosed is a triangular wave generator which includes a square wave signal generating unit configured to output a first signal transitioning to a high level from a low level via an output terminal in response to a first transition of a clock signal and to transition the first signal to a low level from a high level in response to a reset signal; a resistance unit configured to adjust a voltage level of a the square wave signal; and a capacitance unit configured to receive an output signal of the resistance unit to generate a second signal rising to a high level from a low level with a slope, to provide the reset signal to the square wave signal generating unit, and to output a triangular signal by falling the second signal to a low level from a high level with a slope.
    • 公开了一种三角波发生器,其包括方波信号生成单元,其被配置为响应于时钟信号的第一转换,经由输出端子输出从低电平转换到高电平的第一信号,并且将第一信号转换为 响应于复位信号从高电平的低电平; 电阻单元,被配置为调整所述方波信号的电压电平; 以及电容单元,被配置为接收电阻单元的输出信号,以产生从具有斜率的低电平上升到高电平的第二信号,以将复位信号提供给方波信号生成单元,并输出三角形 通过从具有斜率的高电平将第二信号降低到低电平来产生信号。
    • 5. 发明授权
    • Sensorless BLDC motor systems and driving methods of sensorless BLDC motor
    • 无传感器BLDC电机系统和无传感器BLDC电机的驱动方法
    • US08836259B2
    • 2014-09-16
    • US13347128
    • 2012-01-10
    • Young Kyun ChoHui Dong LeeJaewon NamJong-Kee Kwon
    • Young Kyun ChoHui Dong LeeJaewon NamJong-Kee Kwon
    • H02P6/00H02P6/14
    • H02P6/142H02P6/15
    • Provided is a sensorless BLDC motor system. The sensorless BLDC motor system includes a BLDC motor, a comparator, a motor controller, a three-phase inverter, and a mode selector. The BLDC motor includes first to third coils. The comparator compares a voltage of a specific coil of the first to third coils with a neutral-point voltage to output the compared result. The voltage of the specific coil becomes equal to the neutral-point voltage and a specific time elapses, and then the motor controller generates first and second coil control signals based on the compared result. The three-phase inverter supplies a source voltage or ground voltage to the specific coil, or floats the specific coil, in response to the first and second coil control signals. The mode selector selects a driving mode of the BLDC motor by adjusting the specific time.
    • 提供无传感器BLDC电机系统。 无传感器BLDC电机系统包括BLDC电机,比较器,电机控制器,三相逆变器和模式选择器。 BLDC电机包括第一至第三线圈。 比较器将第一至第三线圈的特定线圈的电压与中性点电压进行比较,以输出比较结果。 特定线圈的电压等于中性点电压,经过一定时间,然后电机控制器根据比较结果产生第一和第二线圈控制信号。 三相逆变器响应于第一和第二线圈控制信号向特定线圈提供源极电压或接地电压,或者浮动特定线圈。 模式选择器通过调整具体时间来选择BLDC电机的驱动模式。
    • 6. 发明申请
    • ANALOG-DIGITAL CONVERTER AND POWER SAVING METHOD THEREOF
    • 模拟数字转换器及其节能方法
    • US20130076552A1
    • 2013-03-28
    • US13615052
    • 2012-09-13
    • Jaewon NAMYoung Kyun ChoYil Suk Yang
    • Jaewon NAMYoung Kyun ChoYil Suk Yang
    • H03M1/34
    • H03M1/002H03M1/125H03M1/462
    • Disclosed is an analog-digital converter which includes a pre-amplifier configured to output a comparison result between a sampled analog input signal and a reference signal and to control a power supply operation in response to a power control signal; a digital signal processor configured to generate a digital signal based on the comparison result; a power controller configured to generate an amplifier operation clock signal for controlling the pre-amplifier; and a counter configured to count the number of falling edges of the amplifier operation clock signal and to detect a power interruption point of time of the pre-amplifier according to the counted falling edge number. The power controller generates the power control signal for interrupting a power to be supplied to the pre-amplifier when the power interruption point of time of the pre-amplifier is detected.
    • 公开了一种模拟数字转换器,其包括:前置放大器,其被配置为输出采样的模拟输入信号和参考信号之间的比较结果,并且响应于功率控制信号来控制电源操作; 配置为基于所述比较结果生成数字信号的数字信号处理器; 功率控制器,被配置为产生用于控制前置放大器的放大器操作时钟信号; 以及计数器,被配置为对放大器操作时钟信号的下降沿的数量进行计数,并根据计数的下降沿数检测前置放大器的电源中断时间点。 当检测到前置放大器的电源中断时间点时,功率控制器产生用于中断提供给前置放大器的电力的功率控制信号。
    • 7. 发明授权
    • Analog digital converting device
    • 模拟数字转换装置
    • US08362938B2
    • 2013-01-29
    • US12982531
    • 2010-12-30
    • Young Kyun ChoYoung-deuk JeonJaewon NamJong-Kee Kwon
    • Young Kyun ChoYoung-deuk JeonJaewon NamJong-Kee Kwon
    • H03M1/12
    • H03M1/145H03M1/365H03M1/468
    • Provided is an analog digital converting device which consumes a low power and guarantees fast operation characteristic. The analog digital converting device includes a sub-ADC and a successive approximation ADC. The sub-ADC converts an external analog signal into a first digital signal by using first and second reference voltages. The successive approximation ADC comprises a plurality of bit streams, and converts the external analog signal into a second digital signal according to a successive approximation operation using the first and second reference voltages. The successive approximation ADC receives the first digital signal, and converts the second digital signal in a state where one of the first and second reference voltages has been applied to the bit streams based on the first digital signal.
    • 提供了一种消耗低功耗并保证快速操作特性的模拟数字转换装置。 模拟数字转换装置包括子ADC和逐次逼近ADC。 子ADC通过使用第一和第二参考电压将外部模拟信号转换为第一数字信号。 逐次逼近ADC包括多个比特流,并且根据使用第一和第二参考电压的逐次逼近操作将外部模拟信号转换为第二数字信号。 逐次逼近ADC接收第一数字信号,并且在第一和第二参考电压中的一个被基于第一数字信号施加到比特流的状态下转换第二数字信号。
    • 8. 发明申请
    • ANALOG DIGITAL CONVERTING DEVICE
    • 模拟数字转换器件
    • US20120062406A1
    • 2012-03-15
    • US12982531
    • 2010-12-30
    • Young Kyun ChoYoung-deuk JeonJaewon NamJong-Kee Kwon
    • Young Kyun ChoYoung-deuk JeonJaewon NamJong-Kee Kwon
    • H03M1/36H03M1/12
    • H03M1/145H03M1/365H03M1/468
    • Provided is an analog digital converting device which consumes a low power and guarantees fast operation characteristic. The analog digital converting device includes a sub-ADC and a successive approximation ADC. The sub-ADC converts an external analog signal into a first digital signal by using first and second reference voltages. The successive approximation ADC comprises a plurality of bit streams, and converts the external analog signal into a second digital signal according to a successive approximation operation using the first and second reference voltages. The successive approximation ADC receives the first digital signal, and converts the second digital signal in a state where one of the first and second reference voltages has been applied to the bit streams based on the first digital signal.
    • 提供了一种消耗低功耗并保证快速操作特性的模拟数字转换装置。 模拟数字转换装置包括子ADC和逐次逼近ADC。 子ADC通过使用第一和第二参考电压将外部模拟信号转换为第一数字信号。 逐次逼近ADC包括多个比特流,并且根据使用第一和第二参考电压的逐次逼近操作将外部模拟信号转换为第二数字信号。 逐次逼近ADC接收第一数字信号,并且在第一和第二参考电压中的一个被基于第一数字信号施加到比特流的状态下转换第二数字信号。