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
    • 2. 发明专利
    • Inverter circuit
    • 逆变器电路
    • JPS61121776A
    • 1986-06-09
    • JP23909184
    • 1984-11-13
    • Ikeda Denki Kk
    • HARA TAKAHIRO
    • H02M7/537H02M7/5383
    • H02M7/5383
    • PURPOSE:To suppress the switching loss and to increase the efficiency by detecting the current of a resonance capacitor, and blocking the ON of a transistor while the current flows. CONSTITUTION:An inverter connects a DC power source 8, the primary winding 3 of an oscillation transformer 3 and a transistor (Tr) 1 in series, provides a resonance capacitor 5 for forming a resonance circuit 10 with the winding 3 to supply an AC voltage to a load 11 from the secondary winding 9 of the transformer 2. The Tr 1 is driven by a feedback winding 4. In this case, a current detector 15 is provided to detect the current of the capacitor 5 and to block the On of the Tr 1 while the current of the direction of an arrow S flows to the capacitor 5 by the detection signal by a drive circuit 16. Further, a diode 17 is connected in series with the Tr 1. Thus, the period that the Tr 1 becomes On is delayed to set to the optimum condition that there is almost no difference between the voltage of the series power source 8 and the voltage of the capacitor 5.
    • 目的:通过检测谐振电容器的电流来抑制开关损耗并提高效率,并且在电流流动时阻止晶体管的导通。 构成:逆变器将直流电源8,振荡变压器3的初级绕组3和晶体管(Tr)1串联连接,提供谐振电容器5,用于与绕组3形成谐振电路10,以提供交流电压 耦合到来自变压器2的次级绕组9的负载11.Tr 1由反馈绕组4驱动。在这种情况下,提供电流检测器15以检测电容器5的电流并阻止 Tr 1,而箭头S的方向的电流通过驱动电路16的检测信号流向电容器5.此外,二极管17与Tr 1串联连接。因此,Tr 1变为 导通被延迟设定为串联电源8的电压与电容器5的电压几乎没有差别的最佳状态。
    • 3. 发明专利
    • Inverter circuit
    • 逆变器电路
    • JPS6154878A
    • 1986-03-19
    • JP17571884
    • 1984-08-22
    • Ikeda Denki Kk
    • HARA TAKAHIRO
    • H02M7/537H02M7/5383
    • H02M7/5383
    • PURPOSE:To suppress the switching loss by detecting a current of a resonance capacitor to prevent a transistor from turning ON by a drive circuit. CONSTITUTION:An inverter circuit is composed of a transistor (Tr)1, an oscillation transformer 2, a resonance capacitor 5, a capacitor 6 and a bias resistor 7, and power is supplied from the secondary winding 9 to a load 11. In this case, current detector 15 for detecting the current of th capacitor 5 and a drive circuit 16 for preventing the Tr1 from turning ON while a current is flowed by the detection signal to the capacitor 6 in the direction of an arrow A as shown are provided. Thus, the timing for turning the Tr1 ON is delayed, the optimum condition that there is no difference between the voltage of the power source 8 and the voltage of the capacitor 5 can be set, a pulse current flowed to the loop of the Tr1, the capacitor 5 and the power source 8 is eliminated to reduce the switching loss of the Tr1.
    • 目的:通过检测谐振电容器的电流来抑制开关损耗,以防止晶体管由驱动电路导通。 构成:逆变器电路由晶体管(Tr)1,振荡变压器2,谐振电容器5,电容器6和偏置电阻7组成,并且从次级绕组9向负载11供电。在此 提供用于检测电容器5的电流的电流检测器15和用于防止当电流通过检测信号流向电容器6沿箭头A的方向转动时Tr1导通的驱动电路16,如图所示。 因此,使Tr1导通的定时被延迟,可以设定电源8的电压与电容器5的电压之间没有差的最佳条件,脉冲电流流向Tr1的环路, 消除电容器5和电源8以减少Tr1的开关损耗。
    • 5. 发明专利
    • Self-excited inverter and lcd television apparatus
    • 自动逆变器和液晶电视设备
    • JP2009033932A
    • 2009-02-12
    • JP2007197828
    • 2007-07-30
    • Funai Electric Co Ltd船井電機株式会社
    • MIYAMOTO HAJIMEJINNAI TAKASHI
    • H02M7/48H05B41/24
    • H02M7/5383H02M7/5375H05B41/2822Y02B20/185
    • PROBLEM TO BE SOLVED: To provide a self-excited inverter that realizes stable lamp lighting state by preventing switching element from being turned on simultaneously when controlling light. SOLUTION: A self-excited inverter 8 includes a pair of switching devices Q1, Q2 and a transformer T having a primary side to which the switching devices Q1, Q2 are connected and a secondary side to which a lamp 6 is connected. A pulse voltage is applied alternately to gates of the individual switching devices Q1, Q2 through a drive winding W3 of the transformer T, causing the switching devices Q1, Q2 to turn on and off in alternate turns to produce an AC voltage which is supplied from a pair of main windings W1, W2 of the transformer T to the secondary side thereof. An input voltage Vin supplied to the main windings W1, W2 of the transformer T is divided by a voltage divider circuit configured with a plurality of resistors R1 to R6 and the divided voltages are applied to the gates of the individual switching devices Q1, Q2 so that a startup voltage follows the input voltage Vin. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种通过在控制光时同时防止开关元件导通而实现稳定的灯点亮状态的自激逆变器。 解决方案:自激逆变器8包括一对开关器件Q1,Q2和具有开关器件Q1,Q2连接的初级侧的变压器T和连接有灯6的次级侧。 通过变压器T的驱动绕组W3将脉冲电压交替地施加到各个开关器件Q1,Q2的栅极,使得开关器件Q1,Q2交替地导通和截止,从而产生从 变压器T的一对主绕组W1,W2到其二次侧。 提供给变压器T的主绕组W1,W2的输入电压Vin由配置有多个电阻器R1〜R6的分压电路分压,分压后的电压施加到各开关元件Q1,Q2的栅极 启动电压跟随输入电压Vin。 版权所有(C)2009,JPO&INPIT
    • 6. 发明专利
    • Power converter
    • 电源转换器
    • JPS6158478A
    • 1986-03-25
    • JP17993484
    • 1984-08-28
    • Daiyamondo Denki Kk
    • ARAYA KEIJI
    • H02M7/537H02M7/5383
    • H02M7/5383
    • PURPOSE:To obtain a converter of high efficiency and high output even in high frequency, by a method wherein an oscillation circuit is connected to the first winding of a conversion transformer, and wherein phase control signal is received from the third winding and output is taken out of the third winding. CONSTITUTION:Power supply terminals 1, 2 are connected to an oscillation circuit 5 via gard circuit 3 and rectification circuit 5. The first winding 32 of the conversion transformer 6 with the third winding 34 is connected to the oscillation circuit 5, and the third winding 34 is connected to a phase control circuit 7, and the oscillation circuit 5 is combined with the phase control circuit 7. And the second winding 33 of the conversion transformer 6 is connected to the output ends 35, 36 and the output is arranged to be taken out. As a result, the loss of the oscillating transistor 29 can be reduced, and the collector voltage and temperature of the oscillating transistor can be corrected, and so the high efficiency and high output can be obtained.
    • 目的:即使在高频下也能获得高效率和高输出的转换器,通过将振荡电路连接到转换变压器的第一绕组并且从第三绕组接收相位控制信号并输出​​的方法 在第三个绕组中。 构成:电源端子1,2经由霍尔电路3和整流电路5连接到振荡电路5.转换变压器6与第三绕组34的第一绕组32连接到振荡电路5,第三绕组 34连接到相位控制电路7,并且振荡电路5与相位控制电路7组合。转换变压器6的第二绕组33连接到输出端35,36,并且输出被布置为 带走。 结果,可以减小振荡晶体管29的损耗,并且可以校正振荡晶体管的集电极电压和温度,因此可以获得高效率和高输出。