公开(公告)号：US4255690A

公开(公告)日：1981-03-10

申请号：US46450

申请日：1979-06-07

申请人： Jean-Claude Lecornet

发明人： Jean-Claude Lecornet

IPC分类号： G05F1/44 ,  H01J1/13 ,  H03F1/54 ,  H03F3/24 ,  H05B39/04 ,  H05B41/06

CPC分类号： H03F1/546 ,  G05F1/44 ,  H01J1/135 ,  H03F3/24

摘要： An apparatus for heating the cathode of an electronic power tube, having a supply for delivering a heating current to the cathode, an interrupter circuit for periodically interrupting the flow of heating current to the cathode, and controls for controlling the duration of these periodic interruptions and for regulating the net amount of heating current. To achieve this, the controls include a voltage control that varies in such a way so as to bring the heating current from a value of O to Io (where Io is the correct heating current at which the tube will be in a pre-heated condition) during a first, predetermined time period, and then from a current Io to a current Im (where Im is the optimum value for the heating current when the tube is normally operating), during a second predetermined time period.

摘要翻译： 一种用于加热电子功率管的阴极的装置，具有用于向阴极输送加热电流的电源，用于周期性地中断向阴极的加热电流的中断电路，以及用于控制这些周期性中断的持续时间的控制， 用于调节加热电流的净量。 为了实现这一点，控制器包括电压控制，其以这样的方式变化，以将加热电流从O值提高到Io（其中Io是管将处于预热状态的正确加热电流 ），然后从电流Io到当前Im（其中Im是管正常工作时的加热电流的最佳值），在第二预定时间段期间。