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    • 3. 发明公开
    • 투광 소자 구동 회로 및 광전 센서
    • 光投影元件驱动电路和光电传感器
    • KR1020150005449A
    • 2015-01-14
    • KR1020140078221
    • 2014-06-25
    • 아즈빌주식회사
    • 가지타데츠야
    • H03K17/78
    • H03K17/14H03F3/08H03F3/72H03F2203/7215H03F2203/7221H03K17/162H03K2217/0081H05B33/0818H03K17/78H05B37/02
    • 본 발명은, 온도 등의 외부 변동에 대하여, 안정된 LED 전류를 출력하는 것을 목적으로 한다.
      기준 전압 및 피드백 전압을 기초로 전압을 발생하는 연산 증폭기(11)와, 입력 전압에 따른 전류를 발생하는 LED 구동 트랜지스터(2)와, 연산 증폭기(11)의 출력과 출력 단자(18)의 접속/해제를 전환하는 절단용 스위치(14)와, 절단용 스위치(14)에 접속된 쪽의 출력 단자(18)와 연산 증폭기(11)의 반전 입력 단자의 접속/해제를 전환하는 바이패스 스위치(15)와, 절단용 스위치(14)에 접속된 쪽의 출력 단자(18)를 연산 증폭기(11)의 출력과 상이한 전위로 접속/해제를 전환하는 오프용 스위치(16)와, 절단용 스위치(14)에 접속된 쪽의 연산 증폭기(11)의 출력과 반전 입력 단자의 접속/해제를 전환하는 안정용 스위치(17)와, LED(3)를 발광시킬 때에 절단용 스위치(14) 및 바이패스 스위치(15)를 접속 상태로 하게 하고, LED(3)를 소등시킬 때에 오프용 스위치(16) 및 안정용 스위치(17)를 접속 상태로 하게 하는 투광 소자 발생 회로(12)·NOT 회로(13)를 구비하였다.
    • 本发明提供用于输出稳定的LED电流以抵抗诸如温度的外部变化。 本发明包括:基于参考电压和反馈电压产生电压的运算放大器(11); LED驱动晶体管(2),其根据输入的电压产生电流; 用于切换(14)的开关,其转换运算放大器(11)的输出和输出端子(18)的访问/释放; 旁路开关(15),其将连接到切换开关(14)的一侧的输出端子(18)的访问/释放以及运算放大器(11)的反相输入端子的访问/释放进行转换; 用于将连接到用于切割的开关(14)的一侧的输出端子(18)的访问/释放转换成与运算放大器(11)的输出不同的电位的关闭开关(16); 用于稳定的开关(17),其转换连接到用于切割的开关(14)的一侧的运算放大器(11)的输出和反相输入端子的访问/释放; 在接通LED(3)并使开关断开时,使透光开关(14)和旁路开关(15)成为存取状态的光发射元件发生电路(12)和NOT电路(13) (16)和用于稳定的开关(17)在关闭LED(3)时进入存取状态。
    • 4. 发明公开
    • 귀환 증폭기
    • 反馈放大器
    • KR1020140089052A
    • 2014-07-14
    • KR1020130000317
    • 2013-01-02
    • 한국전자통신연구원
    • 이상흥김성일강동민임종원주철원윤형섭문재경남은수
    • H03F1/34H03F1/30
    • H03F3/08H03G1/0047H03G1/0088H03G3/02H03G3/3084H03G11/02
    • The present invention relates to a feedback amplifier. The feedback amplifier according to the present invention includes an amplification circuit unit which amplifies a burst packet signal inputted from an input terminal and outputs the amplified signal to an output terminal, a feedback circuit unit which is located between the input terminal and the output terminal and is controlled for applying a fixed resistance value to the signal outputted to the output terminal, a packet signal detecting unit which detects the peak of the burst packet signal from the output terminal and controls whether to apply the fixed resistance value, and a bias circuit unit which generates a bias voltage. The feedback circuit unit controls a gain by determining a feedback resistance value for changing the fixed resistance value according to at least one control signal and receiving a bias voltage.
    • 本发明涉及一种反馈放大器。 根据本发明的反馈放大器包括:放大电路单元,其放大从输入端输入的突发分组信号,并将放大的信号输出到输出端;反馈电路单元,位于输入端和输出端之间;以及 被控制为对输出到输出端子的信号施加固定电阻值;分组信号检测单元,其检测来自输出端子的突发分组信号的峰值,并控制是否施加固定电阻值;偏置电路单元 其产生偏置电压。 反馈电路单元通过根据至少一个控制信号确定用于改变固定电阻值并接收偏置电压的反馈电阻值来控制增益。
    • 5. 发明授权
    • 광대역 주파수 검출기
    • 频率检测器
    • KR101324572B1
    • 2013-11-18
    • KR1020130001578
    • 2013-01-07
    • 주식회사 디제이피
    • 김한용임경수
    • G01S13/92G01S13/91
    • G01S7/52G01S7/022H03F3/08H03F2200/294
    • The present invention relates to a broadband frequency detector and, more specifically, to a frequency detector which detects radar signals for confirming total signals and the speed of a vehicle for inducing safety driving. The broadband frequency detector comprises a first amplifier, a combination unit, and a second amplifier. The first amplifier receives signals having a specific frequency from an antenna. The combination unit receives the signals which are amplified in low-noise from the first amplifier. The second amplifier is arranged in the first amplifier in parallel and transmits the signals to the combination unit. The second amplifier comprises a transistor and a first micro-circuit unit which matches the impedance of the antenna to the impedance of the transistor. [Reference numerals] (238) Central processing device;(240) Storage unit;(242) Voice output unit;(244) Input unit;(246) Display unit
    • 本发明涉及一种宽带频率检测器,更具体地说,涉及检测用于确认总信号的雷达信号和用于引导安全驾驶的车辆速度的频率检测器。 宽带频率检测器包括第一放大器,组合单元和第二放大器。 第一放大器从天线接收具有特定频率的信号。 组合单元从第一放大器接收以低噪声放大的信号。 第二放大器并联布置在第一放大器中,并将信号发送到组合单元。 第二放大器包括晶体管和第一微电路单元,其将天线的阻抗与晶体管的阻抗相匹配。 (238)中央处理装置;(240)存储单元;(242)语音输出单元;(244)输入单元;(246)显示单元
    • 8. 发明公开
    • 엑스레이 검출장치 및 이의 구동방법
    • 用于检测X射线的装置及其操作方法
    • KR1020110083338A
    • 2011-07-20
    • KR1020100003516
    • 2010-01-14
    • 삼성모바일디스플레이주식회사
    • 정관욱
    • G09G3/20G01T1/115
    • H03F3/08
    • PURPOSE: An apparatus for detecting an x-ray and a method of operating the same is provided to increase quantum detection efficiency by controlling feedback capacitance according to the permeability of a subject. CONSTITUTION: In an apparatus for detecting an x-ray and a method of operating the same, an X-ray receiving panel includes a scan lines, data lines and a plurality of optical detection pixels(5) which are connected to the scan lines and the data lines. A scan driver is connected to the plural scan lines and applies a scan signal to control the data signal of the plural optical detection pixel. A data detection unit is connected to the plural data lines, and it receives the data signal from the optical detection pixels and determines them to control capacitance according to the permeability of a subject.
    • 目的:提供一种用于检测x射线的装置及其操作方法,以通过根据受试者的渗透性控制反馈电容来提高量子检测效率。 构成:在用于检测x射线的装置及其操作方法中,X射线接收面板包括连接到扫描线的扫描线,数据线和多个光学检测像素(5),以及 数据线。 扫描驱动器连接到多条扫描线,并施加扫描信号以控制多个光学检测像素的数据信号。 数据检测单元连接到多条数据线,并从光学检测像素接收数据信号,并根据被检体的磁导率确定它们的电容。
    • 9. 发明公开
    • LIGHT EMITTING APPARATUS AND CONTROL METHOD THEREOF
    • 发光装置及其控制方法
    • KR20070084741A
    • 2007-08-27
    • KR20060016901
    • 2006-02-21
    • SAMSUNG ELECTRONICS CO LTD
    • LEE SANG HOONKANG JEONG IL
    • G02F1/133
    • H03F3/08H03F2200/504H03F2200/78H05B33/0815H05B33/0818
    • A light emitting apparatus and a method for controlling the same are provided to increase a temperature of a light emitting unit by supplying power to the light emitting unit for predetermined preparatory time before normally driving the light emitting unit when the light emitting unit is initially driven. A power supply unit(110) supplies power to a light emitting unit(120). A switching unit(130) is connected with the light emitting unit in series. A control unit(160) controls the power supply unit to regularly maintain an electric current applied to the switching unit, to supply power of a first level to the light emitting unit for predetermined preparatory time in the case of initially driving the light emitting unit, and to supply power of a second level to the light emitting unit after the predetermined preparatory time passes.
    • 提供一种发光装置及其控制方法,以在发光单元初始被驱动时,在正常驱动发光单元之前,通过向发光单元供电预定准备时间来增加发光单元的温度。 电源单元(110)向发光单元(120)供电。 开关单元(130)与发光单元串联连接。 控制单元(160)控制电源单元以定期地保持施加到开关单元的电流,以在初始驱动发光单元的情况下向发光单元提供预定准备时间的电力, 并且在经过预定准备时间之后,向发光单元供电第二电平。