会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 12. 发明授权
    • 구동 회로(驅動回路)
    • 驱动电路
    • KR1019890004210B1
    • 1989-10-27
    • KR1019840000836
    • 1984-02-21
    • 가부시끼가이샤 히다치 세이사꾸쇼
    • 마에가와히도시오자와미치다가안도구니오
    • H03K17/00
    • H02M1/08H02M3/338
    • The drive circuit includes a coupling transformer having primary and secondary windings, one end of the secondary winding being coupled to a base of the transistor for feeding base current into the transistor. The transistor is driven through the primary winding of the transformer. A tap is provided on the secondary winding. A directional element is connected between the tap and the other end of the secondary winding. The directional element is arranged so that a forward base drive current is supplied to the transistor from the one end and the tap of the secondary winding and a reverse base drive current is supplied to the transistor from the one end and the other end of the secondary winding.
    • 驱动电路包括具有初级和次级绕组的耦合变压器,次级绕组的一端耦合到晶体管的基极,用于将基极电流馈入晶体管。 晶体管被驱动通过变压器的初级绕组。 在次级绕组上提供水龙头。 方向元件连接在水龙头和次级绕组的另一端之间。 定向元件被布置成使得正向基极驱动电流从次级绕组的一端和抽头提供给晶体管,并且反向基极驱动电流从次级的一端和另一端提供给晶体管 绕组。
    • 14. 发明公开
    • LLC 공진형 컨버터의 제어 회로 및 이를 이용한 LLC 공진형 컨버터
    • LLC谐振转换器和LLC谐振转换器的控制电路
    • KR1020120070949A
    • 2012-07-02
    • KR1020100132496
    • 2010-12-22
    • 삼성전기주식회사
    • 박상갑박남진이한희안효중박규민최흥균
    • H02M3/28H02M3/155
    • H02M3/338H02M2001/0022Y02B70/1433
    • PURPOSE: A control circuit of an LLC(Logical Link Control) resonant converter and an LLC resonant converter using the same are provided to obtain a desired input-output DC voltage gain according to an AC input voltage which is changeable without an active power factor correction circuit. CONSTITUTION: A minimum switching frequency changing circuit changes a minimum switching frequency according to an AC input voltage of an LLC resonant converter. A first pulse signal generation portion and a second pulse signal generation portion generate a first pulse signal and a second pulse signal based on a switching frequency limited by the minimum switching frequency changing circuit. The minimum switching frequency changing circuit includes a transistor for controlling the minimum switching frequency which operates according to the AC input voltage of the LLC resonant converter. A control circuit of the LLC resonant converter changes the time constant of the minimum switching frequency changing circuit along with a switching capacitor and switching resistance according to the operation of the transistor for controlling the minimum switching frequency.
    • 目的:提供LLC(逻辑链路控制)谐振变换器和使用其的LLC谐振变换器的控制电路,以根据AC输入电压获得期望的输入 - 输出DC电压增益,AC输入电压在没有有功功率因数校正的情况下是可变的 电路。 构成:最小开关频率变化电路根据LLC谐振变换器的交流输入电压改变最小开关频率。 第一脉冲信号产生部分和第二脉冲信号产生部分基于由最小开关频率改变电路限制的开关频率产生第一脉冲信号和第二脉冲信号。 最小开关频率改变电路包括用于控制根据LLC谐振转换器的AC输入电压工作的最小开关频率的晶体管。 LLC谐振转换器的控制电路根据用于控制最小开关频率的晶体管的操作,改变最小开关频率变化电路的时间常数以及开关电容器和开关电阻。
    • 16. 发明公开
    • 스위칭 전원장치
    • 切换电源设备
    • KR1020060039852A
    • 2006-05-09
    • KR1020057013758
    • 2004-10-29
    • 가부시키가이샤 무라타 세이사쿠쇼
    • 호소타니타츠야타케무라히로시
    • H02M3/28
    • H02M3/338H02M3/33569H02M3/3385
    • A switching power supply comprising first and second switch circuits (S1, S2) composed of switch elements (Q1, Q2), diodes (D1, D2) and capacitors (Cds1, Cds2), and a transformer (T). A first inductor (Lr) is connected in series with the primary winding (Lp) of the transformer (T). A second inductor (Li) is provided such that the voltage of a third capacitor (Ca) is applied during the on period of the first switch circuit (S1). A diode (Di) for blocking the reverse current of the second inductor (Li), and a capacitor (Ci) charged by the exciting energy stored in the second inductor (Li) to apply a voltage to the primary winding (Lp) during the on period of the first switch circuit (S1) are also provided. Furthermore, a capacitor (Cr) is provided to form a closed loop together with the inductor (Lr), the primary winding (Lp) and the second switching circuit (S2).
    • 一种开关电源,包括由开关元件(Q1,Q2),二极管(D1,D2)和电容器(Cds1,Cds2)和变压器(T)组成的第一和第二开关电路(S1,S2)。 第一电感器(Lr)与变压器(T)的初级绕组(Lp)串联连接。 提供第二电感器(Li),使得在第一开关电路(S1)的导通周期期间施加第三电容器(Ca)的电压。 用于阻断第二电感器(Li)的反向电流的二极管(Di)和由存储在第二电感器(Li)中的激励能量充电的电容器(Ci)),以在第二电感器(Li)期间向初级绕组(Lp)施加电压 还提供了第一开关电路(S1)的接通周期。 此外,提供电容器(Cr)以与电感器(Lr),初级绕组(Lp)和第二开关电路(S2)一起形成闭环。
    • 17. 发明授权
    • 화상디스플레이장치
    • KR100455590B1
    • 2004-12-29
    • KR1019960067176
    • 1996-12-18
    • 코닌클리케 필립스 엔.브이.
    • 알랭데크레메르쟝-끌로드도르메
    • H04N3/18
    • H04N5/63H02M3/338
    • The apparatus includes a non-synchronised self-oscillating cut-off supply which is associated with a line scanning stage (35). Supply voltages are generated for other elements in the apparatus. A standby state is obtained by halting the line scanning. The supply cut-off switch (1) is a MOSFET which has its conductive state controlled by a winding (6) which is magnetically coupled to a ballast inductance (5). One end of the winding is connected to a node (50) between the switch and the ballast inductor. The other end of the winding (51) generates a control voltage with an opposite phase to the voltage generated in the ballast inductance which is transmitted to the MOSFET gate. A capacitance (42) is coupled in parallel with the drain-source connections of the MOSFET to create an oscillating circuit with the ballast inductor (5).
    • 该设备包括与线扫描台(35)相关联的非同步自激振荡切断电源。 为装置中的其他元件生成电源电压。 通过暂停行扫描获得待机状态。 电源切断开关(1)是一个MOSFET,其导通状态由与镇流电感(5)磁耦合的绕组(6)控制。 绕组的一端连接到开关和镇流感应器之间的节点(50)。 绕组(51)的另一端产生与镇流电感中产生的电压反相的控制电压,该电压传输至MOSFET栅极。 电容(42)与MOSFET的漏极 - 源极连接并联,以与镇流器电感(5)形成振荡电路。