公开(公告)号：KR1020040004756A

公开(公告)日：2004-01-14

申请号：KR1020020072852

申请日：2002-11-21

Applicant: 삼성전기주식회사

Inventor： 박해성 ,  허강헌 ,  김우섭 ,  김준희 ,  김종한

IPC: H01G4/12

CPC classification number: H01G4/1227 ,  C04B35/468 ,  H01G4/30

Abstract: PURPOSE: A reduction resistant low-fired dielectric magnetic composition, a stacked ceramic capacitor, and a method for manufacturing the stacked ceramic capacitor are provided to achieve improved dielectric constant and temperature characteristic coefficient, while allowing for a low-firing in the reductive atmosphere. CONSTITUTION: A reduction resistant low-fired dielectric magnetic composition comprises 100 moles of BaTiO3, 0.2 to 3.0 moles of MgCO3, 0.05 to 1.5 moles of one or more selected from a group consisting of Y2O3, HO2O3, Dy2O3 and Yb2O3, 0.1 to 1.5 moles of Cr2O3, 0.2 to 3.0 moles of BaxCa(1-x)SiO3(wherein 0

Abstract translation: 目的：提供耐还原性低烧电介质磁性组合物，层叠陶瓷电容器和制造叠层陶瓷电容器的方法，以实现改进的介电常数和温度特性系数，同时允许在还原气氛中低烧制。 构成：耐还原低烧介电磁性组合物包含100摩尔BaTiO 3，0.2-3.0摩尔MgCO 3，0.05-1.5摩尔选自Y 2 O 3，HO 2 O 3，Dy 2 O 3和Yb 2 O 3中的一种或多种，​​0.1至1.5摩尔 的Cr 2 O 3，0.2〜3.0摩尔的BaxCa（1-x）SiO 3（其中0 <= x <= 1）和0.01〜1.5摩尔的Mn2V2O7。 层叠的陶瓷电容器包括彼此交替堆叠的电介质和内部电极，其中电介质由耐还原低烧介电磁性组合物构成。

公开(公告)号：KR1020030039574A

公开(公告)日：2003-05-22

申请号：KR1020010070539

申请日：2001-11-13

Applicant: 삼성전기주식회사

Inventor： 김준희 ,  허강헌 ,  김종한 ,  김우섭

IPC: C04B35/46 ,  H01B3/12

CPC classification number: C04B35/475 ,  C03C8/14 ,  C03C14/004 ,  C04B35/462 ,  C04B35/468 ,  C04B2235/3215 ,  C04B2235/3224 ,  C04B2235/3281 ,  C04B2235/3284 ,  C04B2235/3296 ,  C04B2235/3298 ,  C04B2235/3409 ,  C04B2235/3418 ,  C04B2235/36 ,  C04B2235/656 ,  C04B2235/80 ,  C04B2235/85

Abstract: PURPOSE: Provided is a dielectric ceramic composition, applied to electrical and electronic devices, especially multilayer chip LC filters, which has high dielectric constant and low dielectric loss, and enables simultaneous sintering of ceramic and electrode by adding glass frit and CuO to conventional dielectric materials at the same time. CONSTITUTION: The dielectric ceramic composition is expressed by a composition formula of a wt.%{xBaO - y1Nd2O3 - y2Sm2O3 - wBi2O3 - zTiO2} + b wt.%{ZnO - B2O3 - SiO2 - PbO glass frit} + c wt.% CuO, wherein 10.0mol%

Abstract translation: 目的：提供一种电介质陶瓷组合物，其应用于具有高介电常数和低介电损耗的电子和电子器件，特别是多层芯片LC滤光片，并且通过向常规电介质材料中加入玻璃料和CuO能够同时烧结陶瓷和电极 与此同时。 构成：介电陶瓷组合物由重量百分比{xBaO-y1Nd2O3-y2Sm2O3-wBi2O3-zTiO2} + b重量％{ZnO-B2O3-SiO2-PbO玻璃料} + c重量％CuO的组成式表示 ，其中10.0mol％<= x <= 20.0mol％，7.0mol％<= y1 + y2 <= 20.0mol％，0.5mol％<= w <= 5.0mol％，60.0mol％<= z <= 80.0mol ％，x + y1 + y2 + w + z = 100,80.0wt。％<= a <= 98.0wt。％1.0wt。％<= b <= 10.0wt。％，1.0wt。％<= c < = 10.0重量％。 ZnO-B2O3-SiO2-PbO体系的玻璃料含有30-70重量％的ZnO，5-30重量％的B2O3，5-40重量％的SiO2和2-40重量％的PbO。 所得的电介质陶瓷组合物能够在低于900℃的温度下同时烧结陶瓷和Ag电极，其介电常数大于50，Q值大于1000（1GHz时），共振频率的温度系数（TCF ）±20.0ppm /℃。

公开(公告)号：KR1020030039573A

公开(公告)日：2003-05-22

申请号：KR1020010070538

申请日：2001-11-13

Applicant: 삼성전기주식회사

Inventor： 김우섭 ,  허강헌 ,  김종한 ,  김준희

IPC: C04B35/46 ,  H01B3/12

CPC classification number: C04B35/49 ,  C03C8/10 ,  C03C14/004 ,  C03C2214/04 ,  C04B35/462 ,  C04B2235/3206 ,  C04B2235/3232 ,  C04B2235/3234 ,  C04B2235/3244 ,  C04B2235/3251 ,  C04B2235/3267 ,  C04B2235/3275 ,  C04B2235/3281 ,  C04B2235/3284 ,  C04B2235/3294 ,  C04B2235/3418 ,  C04B2235/365 ,  C04B2235/604 ,  C04B2235/77 ,  C04B2235/80 ,  H01L23/15 ,  H01L2924/0002 ,  H01L2924/09701 ,  H01L2924/00

Abstract: PURPOSE: Provided is a dielectric ceramic composition applied to electrical and electronic devices, especially multilayer chip LC filters, which has high dielectric constant and low dielectric loss, and enables simultaneous sintering of ceramic and electrode by adding glass frit, and optionally oxides and/or CuO to conventional dielectric materials. CONSTITUTION: The dielectric ceramic composition is expressed by a composition formula: a wt.%{xZrO2 - yZnO - wNb2O5 - zTiO2} +c wt.%(glass frit), wherein 5.0mol%

Abstract translation: 目的：提供一种电介质陶瓷组合物，其应用于具有高介电常数和低介电损耗的电子和电子器件，特别是多层片式LC滤波器，并且能够通过添加玻璃料和任选的氧化物和/或氧化物同时烧结陶瓷和电极 CuO与常规电介质材料。 构成：电介质陶瓷组合物由组成式表示：重量％{xZrO 2 -yZnO-w Nb b 5 O 5 -zTiO 2} + c wt。％（玻璃料），其中5.0mol％<= x <= 45.0mol％，1.5 mol％<= y <= 19.0mol％，1.5mol％<= w <= 19.0mol％，40.0mol％≤Z≤59.0mol％，x + y + w =​​ z = 100,75.0 <= a < = 97.0和3.0 <= c <= 25.0。 此外，任意地，在上述电介质组合物中加入少于1.5重量％的MgO，CoO，SiO 2，Sb 2 O 3，Sb 2 O 5，MnO 2和TaO 2和/或0.5重量％的CuO。 ZnO-B2O3-SiO2-PbO体系的玻璃料含有30-70重量％的ZnO，5-30重量％的B2O3，5-40重量％的SiO2和2-40重量％的PbO。 所得的电介质陶瓷组合物能够在低于900℃的温度下同时烧结陶瓷和Ag电极，其介电常数大于30，Q值大于1000（3GHz），谐振频率的温度系数（TCF ）±20.0ppm /℃。

公开(公告)号：KR100365099B1

公开(公告)日：2002-12-16

申请号：KR1020000017555

申请日：2000-04-04

Applicant: 삼성전기주식회사

Inventor： 김우섭 ,  김준희 ,  허강헌

IPC: C04B35/46 ,  H01G4/12

Abstract: 본 발명은 듀플랙서 등의 부품에 사용되는 고주파 유전체 조성물에 관한 것으로, 그 목적은 유전율을 84이상의 수준에서 높은 품질계수(Qf)와 공진주파수의 온도계수를 안정적으로 조절할 수 있는 고주파 유전체 조성물을 제공함에 있다.
상기 목적을 달성하기 위한 본 발명의 고유전율 고주파 유전체 조성물은,
xBaO-yNd
2 O
3 -zBi
2 O
3 -tTiO
2 [mol%로, 12≤x≤20, 5≤y≤20, 0.1≤z≤5, x+y+z+t=100]의 기본조성에;
SrO와 CaO의 단독 또는 복합:10중량%이하, Sm
2 O
3 와 Gd
2 O
3 의 단독 또는 복합:20중량%이하, Y
2 O
3 와 MnO
2 의 단독 또는 복합:2중량%이하의 첨가제 그룹에서 선택된 1종 이상으로 조성되는 고유전율 고주파 유전체 조성물에 관한 것을 그 기술적요지로 한다.

公开(公告)号：KR1020020044247A

公开(公告)日：2002-06-15

申请号：KR1020000073238

申请日：2000-12-05

Applicant: 삼성전기주식회사

Inventor： 김우섭 ,  김준희 ,  허강헌 ,  김종한

IPC: C04B35/46 ,  H01B3/12 ,  H01G4/12

CPC classification number: C04B35/46 ,  C04B35/453 ,  C04B35/48 ,  C04B35/495 ,  C04B2111/00844 ,  C04B2111/90 ,  C04B2235/3232 ,  C04B2235/3244 ,  H01B3/12 ,  H01G4/1218 ,  H01G4/1236

Abstract: PURPOSE: Provided is a high frequency dielectric composition, aZrO2 - bZnO - cTa2O5 - dTiO2(0.0 =42, Q value>=30000 and temperature coefficient of resonance frequency(TCF) of -10 to +10ppm/deg.C, and good sinterability.

Abstract translation: 目的：提供一种高频电介质组合物，a ZrO2-bZnO-cTa2O5-dTiO2（0.0 <= a <= 45.0,1.0 <= b <= 20.0,1.0 <= c <= 20.0 50.0 <= d <= 60.0） 具有高Qf值，高介电常数和低温共振频率系数（TCF）。 构成：高频电介质组合物包含作为主要的ZrO 2 -BZnO-cTa2O5-dTiO2（0.0 <= a <= 45.0,1.0 <= b <= 20.0,1.0 <= c <= 20.0 50.0 <= d <= 60.0） 系统，和至多一种选自MgO，MnO 2，CaO，SiO 2，Sb 2 O 5，Sb 2 O 3，Al 2 O 3和WO 3的化合物的1.5％作为添加剂。 所用的双相介电组合物的介电常数> 42，Q值> = 30000，谐振频率温度系数（TCF）为-10〜+ 10ppm /℃，烧结性好。

公开(公告)号：KR1020020016405A

公开(公告)日：2002-03-04

申请号：KR1020000049708

申请日：2000-08-25

Applicant: 삼성전기주식회사

Inventor： 민병운 ,  김준희

IPC: H05B41/18

CPC classification number: H05B41/38 ,  H05B41/295

Abstract: PURPOSE: A dimming control circuit of a back light inverter is provided to implement analog dimming and PWM dimming simultaneously and enhance quality, reliability and productivity. CONSTITUTION: A dimming control circuit of a back light inverter comprises a first and a second transistors(Q1,Q2), a third transistor(Q3), an ASIC unit(24), and a transformer. The third transistor(Q3) receives an input voltage Vin and switches it to a lamp. The first and the second transistors(Q1,Q2) supply external power to the ASIC unit(24) to turn on the lamp. The ASIC unit(24) receives a feedback signal to generate a dimming signal for controlling duty of the third transistor(Q3). The ASIC unit(24) includes a mode selector(17) for selecting one of an analog dimming mode, a PWM dimming mode and a composite mode. Depending on the selected mode, a reference voltage is generated to control the duty of the third transistor(Q3).

Abstract translation: 目的：提供背光逆变器的调光控制电路，同时实现模拟调光和PWM调光，提高质量，可靠性和生产率。 构成：背光反相器的调光控制电路包括第一和第二晶体管（Q1，Q2），第三晶体管（Q3），ASIC单元（24）和变压器。 第三晶体管（Q3）接收输入电压Vin并将其切换到灯。 第一和第二晶体管（Q1，Q2）向ASIC单元（24）提供外部电源以接通灯。 ASIC单元（24）接收反馈信号以产生用于控制第三晶体管（Q3）的占空比的调光信号。 ASIC单元（24）包括用于选择模拟调光模式，PWM调光模式和复合模式之一的模式选择器（17）。 根据所选择的模式，产生参考电压以控制第三晶体管（Q3）的占空比。

公开(公告)号：KR1020010100265A

公开(公告)日：2001-11-14

申请号：KR1020000017555

申请日：2000-04-04

Applicant: 삼성전기주식회사

Inventor： 김우섭 ,  김준희 ,  허강헌

IPC: C04B35/46 ,  H01G4/12

CPC classification number: H01B3/12 ,  C04B35/475

Abstract: 본 발명은 듀플랙서 등의 부품에 사용되는 고주파 유전체 조성물에 관한 것으로, 그 목적은 유전율을 84이상의 수준에서 높은 품질계수(Qf)와 공진주파수의 온도계수를 안정적으로 조절할 수 있는 고주파 유전체 조성물을 제공함에 있다.
상기 목적을 달성하기 위한 본 발명의 고유전율 고주파 유전체 조성물은,
xBaO-yNd
2 O
3 -zBi
2 O
3 -tTiO
2 [mol%로, 12≤x≤20, 5≤y≤20, 0.1≤z≤5, x+y+z+t=100]의 기본조성에;
SrO와 CaO의 단독 또는 복합:10중량%이하, Sm
2 O
3 와 Gd
2 O
3 의 단독 또는 복합:20중량%이하, Y
2 O
3 와 MnO
2 의 단독 또는 복합:2중량%이하의 첨가제 그룹에서 선택된 1종 이상으로 조성되는 고유전율 고주파 유전체 조성물에 관한 것을 그 기술적요지로 한다.

公开(公告)号：KR1020010058125A

公开(公告)日：2001-07-05

申请号：KR1019990061621

申请日：1999-12-24

Applicant: 삼성전기주식회사

Inventor： 민병운 ,  김준희

IPC: H05B41/38

CPC classification number: H05B41/38 ,  G02F1/1336

Abstract: PURPOSE: An oscillatory circuit for a digital dimming circuit of an inverter is provided to produce a complete trigonometric wave and to adjust the brightness of the backlight by using the exact brightness ratio of an LCD responding to the dimming signal. CONSTITUTION: The oscillatory circuit for a digital dimming circuit of an inverter comprises a trigonometric wave generator(21) for generating a prescribed trigonometric wave, a dimming signal input unit(22) for receiving the external dimming signal, a comparator(23) to compare the trigonometric wave with dimming signal generated from the dimming signal input unit, and an oscillatory circuit(24) for producing the duty adjusted oscillation signal according to the output signal generated from the comparator. The trigonometric wave generator has a transistor to generate a driving voltage(Vcc) by turning on/off operations according to the output signal generated from the comparator. The non-inversion terminal of the comparator receives a divided driving voltage by resistors, and the inversion terminal receives a feedback signal. A capacitor is connected to the output port of the transistor to charge during the turn on duration of the transistor and to discharge during the turn off duration.

Abstract translation: 目的：提供一个用于逆变器数字调光电路的振荡电路，以产生完整的三角波，并通过使用响应于调光信号的LCD的精确亮度比来调节背光的亮度。 构成：逆变器的数字调光电路的振荡电路包括用于产生规定的三角波的三角波发生器（21），用于接收外部调光信号的调光信号输入单元（22），用于比较的比较器（23） 具有从调光信号输入单元产生的调光信号的三角波，以及根据从比较器产生的输出信号产生占空比调制振荡信号的振荡电路（24）。 三角波发生器具有通过根据从比较器产生的输出信号接通/断开操作来产生驱动电压（Vcc）的晶体管。 比较器的非反相端子通过电阻器接收分压驱动电压，反相端子接收反馈信号。 电容器连接到晶体管的输出端口，以在晶体管的导通持续时间期间充电，并在关断持续时间期间放电。

公开(公告)号：KR1020010058124A

公开(公告)日：2001-07-05

申请号：KR1019990061620

申请日：1999-12-24

Applicant: 삼성전기주식회사

Inventor： 김준희

IPC: H05B41/26

CPC classification number: H05B41/3927 ,  H05B41/295

Abstract: PURPOSE: An inverter for a cold cathode fluorescent lamp is provided to enlarge the dimming range and to reduce a noise by implementing an analog type and a digital type dimming circuits. CONSTITUTION: The inverter for cold cathode fluorescent lamp comprises a battery(31), a transformer(32), a cold cathode fluorescent lamp(CCFL)(33), a controller(34), an analog dimming circuit(35), a digital dimming circuit(36), and a current sensing circuit(37). The output of the battery is converted into a high direct voltage through the transformer and supplied to the CCFL. The controller selectively controls the analog dimming circuit or the digital dimming circuit according to an external dimming signal. When the external dimming signal belongs to the range of 50 to 100 %, then the analog dimming circuit operates and the current sensing circuit detects the current flowing through the CCFL and the detected current is inputted into a step down circuit(38) through the analog dimming circuit. The step down circuit controls the supplying power according to the input signal. When the external dimming signal is under 50 %, then the digital dimming circuit operates and the step down circuit adjusts the output ON/OFF section ratio by using the predefined low frequency pulse width modulation to control the supplying power.

Abstract translation: 目的：提供一种用于冷阴极荧光灯的逆变器，通过实现模拟型和数字式调光电路来扩大调光范围并降低噪声。 构成：冷阴极荧光灯的逆变器包括电池（31），变压器（32），冷阴极荧光灯（CCFL）（33），控制器（34），模拟调光电路（35），数字 调光电路（36）和电流检测电路（37）。 电池的输出通过变压器转换成高的直流电压并提供给CCFL。 控制器根据外部调光信号选择性地控制模拟调光电路或数字调光电路。 当外部调光信号属于50〜100％的范围时，模拟调光电路工作，电流检测电路检测流过CCFL的电流，检测到的电流通过模拟量输入到降压电路（38） 调光电路。 降压电路根据输入信号控制供电。 当外部调光信号低于50％时，数字调光电路工作，降压电路通过使用预定义的低频脉冲宽度调制来调节输出ON / OFF部分比率，以控制供电。

公开(公告)号：KR1020010017397A

公开(公告)日：2001-03-05

申请号：KR1019990032886

申请日：1999-08-11

Applicant: 삼성전기주식회사

Inventor： 김준희 ,  민병운

IPC: H05B41/26

CPC classification number: H05B41/3927 ,  G02F1/1336 ,  H05B41/2822 ,  H05B41/295

Abstract: PURPOSE: A cold cathode fluorescent lamp driver inverter is provided to obtain a high efficiency output by minimizing load loss. CONSTITUTION: A driver inverter comprises a piezo-electric transformer(23) for boosting the driving voltage being input to the first side of the piezo-electric transformer to the second side of the transformer; a cold cathode fluorescent lamp(24) operating by the voltage of the second side of the piezo-electric transformer; the first feedback resistance(R3) for detecting the voltage(or current) of the first side of the piezo-electric transformer; the second feedback resistance(R4) for detecting the voltage(or current) of the second side of the piezo-electric transformer; a driving controller(21) for judging a low load state and a low efficiency state in accordance with a reference voltage and first and second feedback voltages(VFB1,VFB2) caused by first and second feedback resistances, and performing control operation in accordance with the result of the judgment; and a driving unit(22) for feeding a driving voltage to the first side of the piezo-electric transformer in accordance with the control signal output from the driving controller.

Abstract translation: 目的：提供冷阴极荧光灯驱动器逆变器，通过最小化负载损耗来获得高效率输出。 构成：驱动器逆变器包括压电变压器（23），用于将输入到压电变压器的第一侧的驱动电压升压到变压器的第二侧; 由压电变压器的第二侧的电压工作的冷阴极荧光灯（24）; 用于检测压电变压器的第一侧的电压（或电流）的第一反馈电阻（R3）; 用于检测压电变压器的第二侧的电压（或电流）的第二反馈电阻（R4）; 驱动控制器（21），用于根据由第一和第二反馈电阻引起的参考电压和第一和第二反馈电压（VFB1，VFB2）来判断低负载状态和低效率状态，并且根据 判决结果; 以及驱动单元（22），用于根据从驱动控制器输出的控制信号将驱动电压馈送到压电变压器的第一侧。