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实用新型
CN201515348U 300B和845功率电子管驱动电路 失效 - 权利终止

  • 专利标题： 300B和845功率电子管驱动电路
  • 专利标题（英）： 300B and 845 power electronic tube driving circuit
  • 申请号： CN200920238577.0
    申请日： 2009-11-05
  • 公开(公告)号： CN201515348U
    公开(公告)日： 2010-06-23
  • 发明人: 黄建悦
  • 申请人： 黄建悦
  • 申请人地址： 广东省河源市新江一路南一巷东23-3号
  • 专利权人： 黄建悦
  • 当前专利权人： 黄建悦
  • 当前专利权人地址： 广东省河源市新江一路南一巷东23-3号
  • 代理机构： 广州粤高专利商标代理有限公司
  • 代理商 罗晓林
  • 主分类号： H03F1/04
  • IPC分类号： H03F1/04
300B和845功率电子管驱动电路
摘要：
本实用新型涉及应用于300B和845两种功率三极管的一种驱动电路。所述电路包括三极管2A3、变压器T1、电感线圈B1、B2，变压器T1一次侧线圈一端接功率三极管屏极，另一端接正电压V2；电感线圈B2一端与所述功率电子管栅极连接，另一端连接负电压-VB；电感线圈B1一端连接电子三极管2A3屏极，另一端接电压源V1；电子三极管2A3屏极通过电容C3连接功率电子管栅极；驱动信号连接电子三极管2A3栅极；电子三极管2A3栅极通过电阻接可调负压-VA。所述驱动电路工作状态负载阻抗变化小，电压利用率高，能够有效抑制被驱动的功率电子管栅极电流，提高功率电子管的工作稳定性，进而使应用该功率管的放大器频响特性大幅提高。
摘要（英）：

The utility model relates to a driving circuit applied to the 300B and the 845 power triodes, which comprises a triode 2A3, a transformer T1 and inductance coils B1 and B2, wherein one end of a primary side coil of the transformer T1 is connected with an anode of the power triode, and the other end is connected with a positive voltage V2; one end of the inductance coil B2 is connected with a grid electrode of a power electronic tube, and the other end is connected with a negative voltage -VB; one end of the inductance coil B1 is connected with the anode of the electronic triode 2A3, and the other end is connected with a voltage source V1; the anode of the electronic triode 2A3 is connected with the grid electrode of the power electronic tube through a capacitor C3; a driving signal is connected with the anode of the electronic triode 2A3; and the anode of the electronic triode 2A3 is connected with an adjustable negative voltage -VA through a resistor. The driving circuit has small variation of the load impedance at the working state and high voltage utilization rate, can effectively control the current of the grid electrode of the driven power electronic tube, and can improve the working stability of the power electronic tube so as to greatly improve the frequency response character of the amplifier utilizing the power tube.

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