专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

KR1020090027577A 인버터 및 그 제어 회로, 제어 방법, 및 그것들을 이용한 발광 장치 无效
标题翻译：其逆变器和控制电路，控制方法和使用它的发光装置
公开(公告)号：KR1020090027577A
公开(公告)日：2009-03-17
申请号：KR1020080086781
申请日：2008-09-03
申请人： 로무 가부시키가이샤
发明人： 이마나카요시노리 , 후쿠모토겐이치
IPC分类号： H05B41/14 , H05B41/24 , H05B41/30
CPC分类号： H05B41/2806 , Y02B20/22
摘要： An inverter and control circuit, and the control method and light emitting device using the same can light the external electrode fluorescent lamp with the simple configuration by performing the striking of the external electrode fluorescent lamp with the soft start circuit. The soft start circuit(70) produces the soft start voltage(Vss) changing in the lighting commencement of the EEFL(External Electrode Fluorescent Lamp) with the time. The pulse width modulator(60) produces the PWM signal(Vpwm) so that the feedback voltage(Vfb) according to the output voltage(Vdrv) of inverter coincide with the soft start voltage(Vss). The voltage of the primary coil of the trans is switching-controlled to the logic controller(50) based on the PWM signal(Vpwm) from the pulse width modulator. The soft start circuit increases the soft start voltage(Vss) with the time. The soft start voltage is lowered if the soft start voltage reaches the first voltage level(VH).
摘要翻译：逆变器和控制电路以及使用该逆变器和控制电路的控制方法和发光装置可以通过利用软启动电路执行外部电极荧光灯的击打，以简单的结构点亮外部电极荧光灯。软启动电路（70）产生在EEFL（外部电极荧光灯）的照明开始时随时间变化的软启动电压（Vss）。脉冲宽度调制器（60）产生PWM信号（Vpwm），使得根据逆变器的输出电压（Vdrv）的反馈电压（Vfb）与软启动电压（Vss）一致。基于来自脉冲宽度调制器的PWM信号（Vpwm），trans的初级线圈的电压被切换控制到逻辑控制器（50）。软启动电路随时间增加软启动电压（Vss）。如果软启动电压达到第一电压电平（VH），则软启动电压降低。

2. 发明公开

KR1020120001636A 부하 구동 회로 및 이를 이용한 발광 장치 및 디스플레이 장치 有权
标题翻译：负载驱动电路，使用其的发光装置和显示装置
公开(公告)号：KR1020120001636A
公开(公告)日：2012-01-04
申请号：KR1020110062252
申请日：2011-06-27
申请人： 로무 가부시키가이샤
发明人： 이마나카요시노리
IPC分类号： G09G3/36 , H01F27/28 , H01F27/24
CPC分类号： H05B41/2828 , H05B33/0815 , H05B33/0827 , H05B33/0851 , G09G3/3607
摘要： PURPOSE: A load driving circuit, a light emitting device using the same, and a display device are provided to control a change range of a frequency by controlling an electrical state of the load through a pulse frequency modulation. CONSTITUTION: A first error amplifier(40) generates a detection signal which shows an electric state of a load and a feedback signal due to the error of a first reference voltage. The potential of a contact point between a current generating transistor and a current generating resistor is inputted to a first input terminal of a second error amplifier(42). A second reference voltage is inputted to a second input terminal of the second error amplifier. An output terminal of the second error amplifier is connected to a control terminal of the current generating transistor. A control resistor is installed between the output terminal of the first error amplifier and the contact point between the current generating transistor and the current generating resistor.
摘要翻译：目的：提供负载驱动电路，使用其的发光装置和显示装置，通过脉冲频率调制来控制负载的电气状态来控制频率的变化范围。构成：第一误差放大器（40）产生检测信号，该检测信号由于第一参考电压的误差而显示负载的电状态和反馈信号。电流产生晶体管和电流产生电阻之间的接触点的电位被输入到第二误差放大器（42）的第一输入端。第二参考电压被输入到第二误差放大器的第二输入端。第二误差放大器的输出端连接到电流产生晶体管的控制端。在第一误差放大器的输出端和电流产生晶体管与电流产生电阻之间的接触点之间安装一个控制电阻。

3. 发明授权

KR101775162B1 부하 구동 회로 및 이를 이용한 발광 장치 및 디스플레이 장치 有权
公开(公告)号：KR101775162B1
公开(公告)日：2017-09-05
申请号：KR1020110062252
申请日：2011-06-27
申请人： 로무 가부시키가이샤
发明人： 이마나카요시노리
IPC分类号： G09G3/36 , H01F27/28 , H01F27/24
CPC分类号： H05B41/2828 , H05B33/0815 , H05B33/0827 , H05B33/0851
摘要： [요약] 주파수의변동범위를조절가능한부하구동회로를제공하는것이다. [해결수단] 메인트랜스포머(20)는, 그 2차권선측에부하(2)가접속된다. 제1 오차증폭기(40)는, 부하(2)의전기적상태를나타내는검출신호(IS)와소정의제1 기준전압(V)의오차에따른피드백신호(FB)를생성한다. 전류생성용저항(R)은, 전류생성용트랜지스터(M3)와고정전압단자의사이에설치된다. 제2 오차증폭기(42)는, 그제1 입력단자에전류생성용트랜지스터(M3)와전류생성용저항(R)의접속점의전위가입력되고, 그제2 입력단자에소정의제2 기준전압(V)이입력되고, 그출력단자가전류생성용트랜지스터(M3)의제어단자에접속된다. 조절용저항(R)은, 전류생성용트랜지스터(M3)와전류생성용저항(R)의접속점과, 제1 오차증폭기(40)의출력단자의사이에설치된다.

4. 发明公开

KR1020100032354A 인버터의 제어 회로, 및 그것을 이용한 발광 장치 및 디스플레이 장치 无效
标题翻译：逆变器控制电路，使用它的发光装置和显示器
公开(公告)号：KR1020100032354A
公开(公告)日：2010-03-25
申请号：KR1020097008125
申请日：2008-07-04
申请人： 로무 가부시키가이샤
发明人： 이마나카요시노리
IPC分类号： H05B41/24 , H05B41/392
CPC分类号： H05B41/2822 , H05B41/3921 , Y10S315/04
摘要： A reference voltage source (2) generates a reference voltage (Vdim) for current light control. A first current source (24) generates a first current (I1). A first current mirror circuit (28) has a plurality of output terminals (P1-P3) and copies the first current (I1) to output a plurality of first copy currents (Ic1a-Ic1c) from the plurality of output terminals (P1-P3). A plurality of first switches (SW1b, SW1c) are provided, respectively, on the passages of the plurality of first copy currents (Ic1a-Ic1c). A conversion resistor (R3) having a fixed potential at one end is provided on the passages of the plurality of first copy currents (Ic1a-Ic1c) outputted from the first current mirror circuit (28). A decoder circuit (40) receives a control signal (Sdim) from the outside and controls on/off of the plurality of first switches (SW1b, SW1c). The reference voltage source (2) outputs a voltage dependent on the voltage drop across the conversion resistor (R3) as the reference voltage (Vdim).
摘要翻译：参考电压源（2）产生用于当前光控制的参考电压（Vdim）。第一电流源（24）产生第一电流（I1）。第一电流镜电路（28）具有多个输出端子（P1-P3），并且复制第一电流（I1）以从多个输出端子（P1-P3）输出多个第一复制电流（Ic1a-Ic1c））。多个第一开关（SW1b，SW1c）分别设置在多个第一复制电流（Ic1a-Ic1c）的通道上。在从第一电流镜电路（28）输出的多个第一复制电流（Ic1a-Ic1c）的通道上设置一端具有固定电位的转换电阻（R3）。解码器电路（40）从外部接收控制信号（Sdim）并控制多个第一开关（SW1b，SW1c）的接通/断开。参考电压源（2）输出取决于转换电阻器（R3）两端的电压降的电压作为参考电压（Vdim）。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式