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公开(公告)号：KR101232874B1
公开(公告)日：2013-02-12
申请号：KR1020110122818
申请日：2011-11-23
Applicant: 전남대학교산학협력단
IPC: H02M3/155
Abstract: PURPOSE: A magnetic coupling boosting type converter device using a transformer is provided to magnetically couple one transformer composed of a coil for charging energy, thereby adding loss energy to output and increasing the output. CONSTITUTION: A control unit controls switching elements(111,122) of a boosting converter. The boosting converter includes coils(131,132) and the switching elements. A coil charges and discharges power source. A coil of the boosting converter is composed of one transformer. The transformer is composed of a first coil and a second coil. A coil of a first boosting converter(110) is composed of the first coil of the transformer. A coil of a second boosting converter(120) is composed of the second coil of the transformer.
Abstract translation: 目的：提供一种使用变压器的磁耦合升压型转换器，用于将由线圈组成的一个变压器磁耦合到充电能量，从而将输出能量增加到输出并增加输出。 构成：控制单元控制升压转换器的开关元件（111,122）。 升压转换器包括线圈（131,132）和开关元件。 线圈对电源进行充放电。 升压转换器的线圈由一个变压器组成。 变压器由第一线圈和第二线圈构成。 第一升压转换器（110）的线圈由变压器的第一线圈组成。 第二升压转换器（120）的线圈由变压器的第二线圈组成。
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公开(公告)号：KR101258953B1
公开(公告)日：2013-04-29
申请号：KR1020120000474
申请日：2012-01-03
Applicant: 전남대학교산학협력단
IPC: H03L7/08
Abstract: PURPOSE: A PLL(Phase-Locked Loop) controller using feed-forward is provided to improve the responsiveness of phase angle estimation by estimating disturbance-resistant phase angles. CONSTITUTION: A PLL controller(100) includes a two-phase signal generator(110), a d-q converter(120), a loop filter(130), a feed-forward controller(140), and a feed-forward calculator(150). The two-phase signal generator converts the system voltage to two-phase voltages on a stationary frame. The d-q converter converts the two-phase voltages on the stationary frame to two-phase voltages on a rotating frame. The loop filter calculates a real phase angle of the system voltage by applying a gain value to the d-axis voltage among the two-phase voltages on the rotating frame. The feed-forward controller receives the two-phase voltages on the rotating frame and calculates a reference phase angle of the system voltage. The feed-forward calculator feed-forwards the reference phase angle to the real phase angle and calculates a final estimated phase angle.
Abstract translation: 目的：提供使用前馈的PLL（锁相环）控制器，通过估计抗干扰相位角来提高相位角估计的响应性。 构成：PLL控制器（100）包括两相信号发生器（110），dq转换器（120），环路滤波器（130），前馈控制器（140）和前馈计算器（150） ）。 两相信号发生器将系统电压转换为固定框架上的两相电压。 d-q转换器将固定框架上的两相电压转换为旋转框架上的两相电压。 环路滤波器通过对旋转框架上的两相电压之间的d轴电压施加增益值来计算系统电压的实际相位角。 前馈控制器接收旋转框架上的两相电压并计算系统电压的参考相位角。 前馈计算器将参考相位角反馈到实际相位角，并计算出最终估计的相位角。
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公开(公告)号：KR101215982B1
公开(公告)日：2012-12-27
申请号：KR1020110012450
申请日：2011-02-11
Applicant: 주식회사 고아정공 , 전남대학교산학협력단
IPC: H05B37/02
Abstract: 본발명은 LED 구동회로에관한것이다. 즉, 본발명에서는다채널 LED 광원을구동하는 LED 구동회로에서온도변화에따른 LED 등가저항변화로인한전류변동을보상하기위해직렬저항대신에너지회수가가능한 DC/DC 컨버터를사용하고, 온도변화에따른전압변동을보상하기위해각 채널의 DC/DC 컨버터에서회수되는에너지를수집하여전원측으로환원시키는전력변환기를구성함으로써 LED 구동회로에서에너지효율을크게개선시킬수 있다.
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公开(公告)号：KR1020120092408A
公开(公告)日：2012-08-21
申请号：KR1020110012450
申请日：2011-02-11
Applicant: 주식회사 고아정공 , 전남대학교산학협력단
IPC: H05B37/02
CPC classification number: H05B33/083 , F21V23/004 , F21Y2101/00 , H05B33/0818 , H05B33/0827 , Y02B20/347
Abstract: PURPOSE: An LED drive circuit is provided to compensate current variation due to an LED equivalent resistance changed according to temperature by employing a DC/DC converter instead of a serial resistance. CONSTITUTION: An LED drive circuit comprises an LED array which drives LEDs with operating power, DC/DC converters(404,406,408) which are connected to the LED array and convert the an equivalent resistance to supply constant current to the LEDs, and a power transformer(410) which collects voltage from the DC/DC converters and supplies the operating power to a power unit(400).
Abstract translation: 目的：提供LED驱动电路，用于补偿由于采用DC / DC转换器而不是串联电阻而根据温度变化的LED等效电阻引起的电流变化。 构成：LED驱动电路包括驱动具有工作电源的LED的LED阵列，连接到LED阵列的DC / DC转换器（404,406,408），并将等效的电阻转换为向LED提供恒定电流，以及电源变压器 410），其从DC / DC转换器收集电压，并将工作电力提供给电力单元（400）。
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