公开(公告)号：US08604845B2

公开(公告)日：2013-12-10

申请号：US13488337

申请日：2012-06-04

申请人： Hui Dong Lee ,  Jaewon Nam ,  Young Kyun Cho ,  Jong-Kee Kwon ,  Yil Suk Yang ,  Jongdae Kim

发明人： Hui Dong Lee ,  Jaewon Nam ,  Young Kyun Cho ,  Jong-Kee Kwon ,  Yil Suk Yang ,  Jongdae Kim

IPC分类号： H03K4/06

CPC分类号： H03K4/501

摘要： 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.

摘要翻译： 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。

公开(公告)号：US09490734B2

公开(公告)日：2016-11-08

申请号：US13443823

申请日：2012-04-10

申请人： Jaewon Nam ,  Young Kyun Cho ,  Hui Dong Lee ,  Yil Suk Yang ,  Jong-Kee Kwon ,  Jongdae Kim

发明人： Jaewon Nam ,  Young Kyun Cho ,  Hui Dong Lee ,  Yil Suk Yang ,  Jong-Kee Kwon ,  Jongdae Kim

IPC分类号： H02P6/18 ,  H02P6/10 ,  H02P6/20 ,  H02P6/08

CPC分类号： H02P6/182 ,  H02P6/085 ,  H02P6/10 ,  H02P6/18 ,  H02P6/21 ,  H02P2209/07

摘要： A motor control device including a preprocessing portion calculating a counter electromotive force using an analog operation is provided. The motor control device may include an offset compensation portion and a counter electromotive force measuring portion. The offset compensation portion receives a three-phase current signal from the motor and compensates an offset of the three-phase current signal. The counter electromotive force measuring portion receives the compensated current signal and a three-phase voltage signal from the motor and calculates the received current signal and the received voltage signal using an analog operation to provide the calculated result.

摘要翻译： 提供了一种包括使用模拟操作来计算反电动势的预处理部分的电动机控制装置。 马达控制装置可以包括偏移补偿部分和反电动势测量部分。 偏移补偿部分接收来自马达的三相电流信号，并补偿三相电流信号的偏移。 反电动势测量部分接收来自电动机的补偿的电流信号和三相电压信号，并使用模拟操作来计算接收的电流信号和接收的电压信号，以提供计算结果。

公开(公告)号：US20120268052A1

公开(公告)日：2012-10-25

申请号：US13443823

申请日：2012-04-10

申请人： Jaewon NAM ,  Young Kyun Cho ,  Hui Dong Lee ,  Yil Suk Yang ,  Jong-Kee Kwon ,  Jongdae Kim

发明人： Jaewon NAM ,  Young Kyun Cho ,  Hui Dong Lee ,  Yil Suk Yang ,  Jong-Kee Kwon ,  Jongdae Kim

IPC分类号： H02P23/00

CPC分类号： H02P6/182 ,  H02P6/085 ,  H02P6/10 ,  H02P6/18 ,  H02P6/21 ,  H02P2209/07

摘要： A motor control device including a preprocessing portion calculating a counter electromotive force using an analog operation is provided. The motor control device may include an offset compensation portion and a counter electromotive force measuring portion. The offset compensation portion receives a three-phase current signal from the motor and compensates an offset of the three-phase current signal. The counter electromotive force measuring portion receives the compensated current signal and a three-phase voltage signal from the motor and calculates the received current signal and the received voltage signal using an analog operation to provide the calculated result.

摘要翻译： 提供了一种包括使用模拟操作来计算反电动势的预处理部分的电动机控制装置。 马达控制装置可以包括偏移补偿部分和反电动势测量部分。 偏移补偿部分接收来自马达的三相电流信号，并补偿三相电流信号的偏移。 反电动势测量部分接收来自电动机的补偿的电流信号和三相电压信号，并使用模拟操作来计算接收的电流信号和接收的电压信号，以提供计算结果。

公开(公告)号：US08836259B2

公开(公告)日：2014-09-16

申请号：US13347128

申请日：2012-01-10

申请人： Young Kyun Cho ,  Hui Dong Lee ,  Jaewon Nam ,  Jong-Kee Kwon

发明人： Young Kyun Cho ,  Hui Dong Lee ,  Jaewon Nam ,  Jong-Kee Kwon

IPC分类号： H02P6/00 ,  H02P6/14

CPC分类号： H02P6/142 ,  H02P6/15

摘要： 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.

摘要翻译： 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。

公开(公告)号：US08217728B2

公开(公告)日：2012-07-10

申请号：US12878697

申请日：2010-09-09

申请人： Hui Dong Lee ,  Kwi Dong Kim ,  Jong Kee Kwon ,  Jong Dae Kim

发明人： Hui Dong Lee ,  Kwi Dong Kim ,  Jong Kee Kwon ,  Jong Dae Kim

IPC分类号： H03B5/12 ,  H03C3/22

CPC分类号： H03B5/1228 ,  H03B5/1215 ,  H03B5/124 ,  H03B5/1265 ,  H03B5/1293

摘要： An LC voltage-controlled oscillator (VCO) is provided. The LC VCO includes an LC resonant circuit including at least one inductor whose both terminals are connected to output nodes and at least one capacitor connected in parallel with the inductor, and an amplifier circuit including at least one pair of switching transistors. Here, drains of the pair of switching transistors are connected to the output nodes respectively, and gates of the switching transistors are connected with the drains through a variable capacitance block exhibiting different characteristics according to an input signal.

摘要翻译： 提供了一个LC压控振荡器（VCO）。 LC VCO包括LC谐振电路，其包括至少一个电感器，其两个端子连接到输出节点和与电感器并联连接的至少一个电容器，以及包括至少一对开关晶体管的放大器电路。 这里，一对开关晶体管的漏极分别连接到输出节点，并且开关晶体管的栅极通过根据输入信号呈现不同特性的可变电容块与漏极连接。

公开(公告)号：US20110018644A1

公开(公告)日：2011-01-27

申请号：US12844686

申请日：2010-07-27

申请人： Seok Ju YUN ,  Hui Dong Lee ,  Kwi Dong Kim ,  Jong Kee Kwon

发明人： Seok Ju YUN ,  Hui Dong Lee ,  Kwi Dong Kim ,  Jong Kee Kwon

IPC分类号： H03B5/12

CPC分类号： H03B5/1228 ,  H03B5/1215 ,  H03B5/1218 ,  H03B5/1225 ,  H03B5/1253 ,  H03B5/1296

摘要： Provided is a transformer-based oscillator which is suited to oscillate frequencies in multiple bands. An oscillator includes a transformer resonance unit and a plurality of complementary transistors. The transformer resonance unit includes a primary coil and a secondary coil corresponding to the primary coil. The plurality of complementary transistors have gates and drains between which both ends of the transformer resonance unit are respectively connected. Thus, the oscillator may operate in a differential mode or common mode according to the phase of the transformer resonance unit. Also, a complementary transistor constituting a multiband oscillation loop may be independently connected to both ends of the transformer resonance unit, and an oscillation loop of at least one band may be selected out of a multiband oscillation loop using a switch unit. Thus, the oscillator may be suited to oscillate resonance frequencies in multiple bands.

摘要翻译： 提供了一种适用于在多个频带中振荡频率的基于变压器的振荡器。 振荡器包括变压器谐振单元和多个互补晶体管。 变压器谐振单元包括初级线圈和对应于初级线圈的次级线圈。 多个互补晶体管具有分别连接变压器谐振单元的两端的栅极和漏极。 因此，振荡器可以根据变压器谐振单元的相位以差模或共模工作。 此外，构成多频带振荡回路的互补晶体管可以独立地连接到变压器谐振单元的两端，并且可以使用开关单元从多频带振荡回路中选择至少一个频带的振荡回路。 因此，振荡器可以适合于振荡多个频带中的谐振频率。

公开(公告)号：US08274317B2

公开(公告)日：2012-09-25

申请号：US12882132

申请日：2010-09-14

申请人： Sang Hyun Cho ,  Hui Dong Lee ,  Kwi Dong Kim ,  Jong Kee Kwon ,  Seung Tak Ryu

发明人： Sang Hyun Cho ,  Hui Dong Lee ,  Kwi Dong Kim ,  Jong Kee Kwon ,  Seung Tak Ryu

IPC分类号： H03L7/06

CPC分类号： H03L7/0995 ,  H03L7/099 ,  H03L2207/06

摘要： A phase-locked loop (PLL) circuit including a voltage-controlled oscillator (VCO) with a variable gain is provided. A phase frequency detector (PFD) detects a phase difference between a reference signal and a PLL feedback signal. A charge pump and a loop filter sequentially process an output signal of the PFD. A VCO has different gains according to a mode transition. A control voltage applied to the VCO is selected from an output signal of the loop filter and an additional control signal according to the mode transition.

摘要翻译： 提供了包括具有可变增益的压控振荡器（VCO）的锁相环（PLL）电路。 相位频率检测器（PFD）检测参考信号和PLL反馈信号之间的相位差。 电荷泵和环路滤波器依次处理PFD的输出信号。 根据模式转换，VCO具有不同的增益。 根据模式转换，从环路滤波器的输出信号和附加控制信号中选择施加到VCO的控制电压。

公开(公告)号：US08040156B2

公开(公告)日：2011-10-18

申请号：US12466283

申请日：2009-05-14

申请人： Hui Dong Lee ,  Kwi Dong Kim ,  Jong Kee Kwon

发明人： Hui Dong Lee ,  Kwi Dong Kim ,  Jong Kee Kwon

IPC分类号： H03K5/19

CPC分类号： H03L7/095

摘要： Provided are a lock detection circuit and a lock detecting method. The lock detection circuit includes two delay devices, four flip-flops and two logic gates, and can accurately detect a lock state of a phase locked loop (PLL) circuit. Therefore, the lock detection circuit can be implemented in a simple structure, and as a result, the lock detection circuit can be compact in size and can consume less electric power. Also, the lock detecting method enables lock detection process to be simpler, so that a lock state can be detected within a short time period.

摘要翻译： 提供锁定检测电路和锁定检测方法。 锁定检测电路包括两个延迟器件，四个触发器和两个逻辑门，并且可以精确地检测锁相环（PLL）电路的锁定状态。 因此，可以以简单的结构实现锁定检测电路，结果，锁定检测电路的尺寸可以小巧，并且可以消耗更少的电力。 此外，锁定检测方法使得锁定检测处理更简单，从而可以在短时间内检测锁定状态。

公开(公告)号：US20110148485A1

公开(公告)日：2011-06-23

申请号：US12882132

申请日：2010-09-14

申请人： Sang Hyun CHO ,  Hui Dong Lee ,  Kwi Dong Kim ,  Jong Kee Kwon ,  Seung Tak Ryu

发明人： Sang Hyun CHO ,  Hui Dong Lee ,  Kwi Dong Kim ,  Jong Kee Kwon ,  Seung Tak Ryu

IPC分类号： H03L7/06

CPC分类号： H03L7/0995 ,  H03L7/099 ,  H03L2207/06

摘要： A phase-locked loop (PLL) circuit including a voltage-controlled oscillator (VCO) with a variable gain is provided. A phase frequency detector (PFD) detects a phase difference between a reference signal and a PLL feedback signal. A charge pump and a loop filter sequentially process an output signal of the PFD. A VCO has different gains according to a mode transition. A control voltage applied to the VCO is selected from an output signal of the loop filter and an additional control signal according to the mode transition.

摘要翻译： 提供了包括具有可变增益的压控振荡器（VCO）的锁相环（PLL）电路。 相位频率检测器（PFD）检测参考信号和PLL反馈信号之间的相位差。 电荷泵和环路滤波器依次处理PFD的输出信号。 根据模式转换，VCO具有不同的增益。 根据模式转换，从环路滤波器的输出信号和附加控制信号中选择施加到VCO的控制电压。

公开(公告)号：US08264293B2

公开(公告)日：2012-09-11

申请号：US12844686

申请日：2010-07-27

申请人： Seok Ju Yun ,  Hui Dong Lee ,  Kwi Dong Kim ,  Jong Kee Kwon

发明人： Seok Ju Yun ,  Hui Dong Lee ,  Kwi Dong Kim ,  Jong Kee Kwon

IPC分类号： H03B5/08

CPC分类号： H03B5/1228 ,  H03B5/1215 ,  H03B5/1218 ,  H03B5/1225 ,  H03B5/1253 ,  H03B5/1296

摘要： Provided is a transformer-based oscillator which is suited to oscillate frequencies in multiple bands. An oscillator includes a transformer resonance unit and a plurality of complementary transistors. The transformer resonance unit includes a primary coil and a secondary coil corresponding to the primary coil. The plurality of complementary transistors have gates and drains between which both ends of the transformer resonance unit are respectively connected. Thus, the oscillator may operate in a differential mode or common mode according to the phase of the transformer resonance unit. Also, a complementary transistor constituting a multiband oscillation loop may be independently connected to both ends of the transformer resonance unit, and an oscillation loop of at least one band may be selected out of a multiband oscillation loop using a switch unit. Thus, the oscillator may be suited to oscillate resonance frequencies in multiple bands.

摘要翻译： 提供了一种适用于在多个频带中振荡频率的基于变压器的振荡器。 振荡器包括变压器谐振单元和多个互补晶体管。 变压器谐振单元包括初级线圈和对应于初级线圈的次级线圈。 多个互补晶体管具有分别连接变压器谐振单元的两端的栅极和漏极。 因此，振荡器可以根据变压器谐振单元的相位以差模或共模工作。 此外，构成多频带振荡回路的互补晶体管可以独立地连接到变压器谐振单元的两端，并且可以使用开关单元从多频带振荡回路中选择至少一个频带的振荡回路。 因此，振荡器可以适合于振荡多个频带中的谐振频率。