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1. 发明公开

KR20120047321A Apparatus of detecting zero-inductor-current for switching type voltage converter 有权
标题翻译：检测用于开关型电压转换器的零电感电流的装置
公开(公告)号：KR20120047321A
公开(公告)日：2012-05-11
申请号：KR20100107727
申请日：2010-11-01
申请人： SAMSUNG ELECTRO MECH , UNIV SEOUL IND COOP FOUND
发明人： CHEON JEONG IN , GONG JUNG CHUL , YOO CHANG SIK , JANG YU JIN , ROH YONG SEONG , MOON YUNG JIN
IPC分类号： G01R19/15
摘要： PURPOSE: An apparatus for measuring a zero current of an inductor of a switching type voltage transformer is provided to measure a zero current of an inductor without additional circuit elements like a resistor and a transistor. CONSTITUTION: A current supply unit(21) outputs a first current and a second current. A capacitor(22) is charged with a current outputted from a current supply unit. A voltage amplifying unit amplifies a voltage of the capacitor. A voltage comparing unit(24) compares the voltage of the capacitor with the voltage maintained by the voltage amplifying unit. A latch unit(25) outputs a high signal and a low signal according to the result of the voltage comparing unit.
摘要翻译：目的：提供一种用于测量开关型电压互感器的电感器的零电流的装置，用于测量电感器的零电流，而不需要附加的电路元件，如电阻和晶体管。构成：电流供应单元（21）输出第一电流和第二电流。电容器（22）对从电流供给单元输出的电流进行充电。电压放大单元放大电容器的电压。电压比较单元（24）将电容器的电压与由电压放大单元维持的电压进行比较。锁存单元（25）根据电压比较单元的结果输出高信号和低信号。

2. 发明公开

KR20120037757A Relaxation oscillator 无效
标题翻译：放松振荡器
公开(公告)号：KR20120037757A
公开(公告)日：2012-04-20
申请号：KR20100099405
申请日：2010-10-12
申请人： SAMSUNG ELECTRO MECH , UNIV SEOUL IND COOP FOUND
发明人： YANG JEONG MO , YOO CHANG SIK , MOON YUNG JIN , ROH YONG SEONG , CHOI JOONG HO , LEE JAE SHIN , GONG JUNG CHUL , JANG YU JIN
IPC分类号： H03K4/06 , H03K3/0231
CPC分类号： H03K3/354 , H03K3/0231 , H03K3/03 , H03K5/1534
摘要： PURPOSE: A relaxation oscillator using a negative feedback circuit is provided to eliminate frequency shift due to the delay or offset of a comparator by controlling a peak voltage of a lamp wave and a reference voltage to be the same value. CONSTITUTION: A relaxation oscillator(140) comprises a lamp wave generating unit(100), a negative feedback circuit(130), and a switching signal generating unit(120). The lamp wave generating unit generates a lamp wave through the complementary operation of a first capacitor module(100a) charged and discharged by a first switching signal and a second capacitor module(100b) charged and discharged by a second switching signal. The negative feedback circuit generates a compensation voltage for compensating for errors with a reference voltage by receiving the feedback of the lamp wave. The switching signal generating unit generates the first switching signal controlling the charging/discharging of the first capacitor module and the second switching signal controlling the charging/discharging of the second capacitor module.
摘要翻译：目的：提供使用负反馈电路的放大振荡器，以通过将灯波峰值电压和参考电压控制为相同的值来消除由于比较器的延迟或偏移引起的频移。构成：弛豫振荡器（140）包括灯波发生单元（100），负反馈电路（130）和开关信号产生单元（120）。灯波产生单元通过由第一开关信号充放电的第一电容器模块（100a）和通过第二开关信号充电和放电的第二电容器模块（100b）的互补操作产生灯波。负反馈电路通过接收灯波的反馈产生用于通过参考电压补偿误差的补偿电压。开关信号产生单元产生控制第一电容器模块的充电/放电的第一开关信号和控制第二电容器模块的充电/放电的第二开关信号。

3. 发明公开

KR20120037756A Power factor correction circuit 无效
标题翻译：功率因数校正电路
公开(公告)号：KR20120037756A
公开(公告)日：2012-04-20
申请号：KR20100099404
申请日：2010-10-12
申请人： SAMSUNG ELECTRO MECH , UNIV SEOUL IND COOP FOUND
发明人： YANG JEONG MO , YOO CHANG SIK , MOON YUNG JIN , ROH YONG SEONG , CHOI JOONG HO , LEE JAE SHIN , GONG JUNG CHUL , JANG YU JIN
IPC分类号： H02M1/42 , G05F1/10 , H02M3/155
CPC分类号： H02M1/4225 , Y02B70/126 , Y02P80/112
摘要： PURPOSE: A power factor improvement circuit is provided to increase an average value of input current by restricting a switching frequency, thereby improving a power factor of a power conversion module. CONSTITUTION: A power conversion module(100) converts input voltage(Vin) into output voltage(Vout) of a fixed size. A signal selection module(200) selectively outputs a first signal(Vref3) which has a fixed value and a second(Vsample) which has a variable value. The signal selection module comprises a first module(210), a second module(220), and a third module(230). A first reference wave generation module(300) generates a first reference wave which is reset according to a first reset signal. A switching signal generation module(400) generates a main switching signal.
摘要翻译：目的：提供功率因数提高电路，通过限制开关频率来增加输入电流的平均值，从而提高功率转换模块的功率因数。构成：电源转换模块（100）将输入电压（Vin）转换为固定尺寸的输出电压（Vout）。信号选择模块（200）选择性地输出具有固定值的第一信号（Vref3）和具有可变值的第二信号（Vsample）。信号选择模块包括第一模块（210），第二模块（220）和第三模块（230）。第一参考波生成模块（300）产生根据第一复位信号复位的第一参考波。切换信号生成模块（400）生成主切换信号。

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