公开(公告)号：US3781638A

公开(公告)日：1973-12-25

申请号：US3781638D

申请日：1972-06-28

Applicant: GEN ELECTRIC

Inventor： ANDERSON T ,  WALDEN J

IPC: H02M3/338 ,  H02M5/458 ,  H02M3/32

CPC classification number: H02M5/458 ,  H02M3/3388

Abstract: A power supply includes a high frequency inverter comprising a pair of main switching transistors for alternately conducting current from a d.c. source through different winding halves of a multi-winding transformer. A starting resistor, connected between the source and the base of a selected one of the main transistors, initiates base-emitter current flow to make the transistor conductive. A control transistor turns the then conducting main transistor ''''off'''' in response to a predetermined current level through the conducting main transistor; the predetermined current level having been reached in response to the onset of magnetic saturation of the core of the transformer. Subsequently, a voltage induced in a third transformer winding initiates base-emitter current flow in the other main transistor thereby turning it ''''on''''. Also, the control transistor serves to turn either main switching transistor ''''off'''' when the current therethrough is excessive, (e.g., overload or short-circuit condition).

公开(公告)号：US3845358A

公开(公告)日：1974-10-29

申请号：US37513273

申请日：1973-06-29

Applicant: GEN ELECTRIC

Inventor： ANDERSON T ,  MARTZLOFF F

IPC: H01C7/102 ,  H03G1/00 ,  H03G11/00 ,  H02H9/04

CPC classification number: H03G11/00 ,  H01C7/102 ,  H03G1/0035

Abstract: A polycrystalline varistor of the bulk effect zinc oxide base type adapted for use in voltage surge suppression on VHF signal lines is disclosed. The device comprises a unitary body including a spiral inductor electrically in series with the varistor element to prevent capacitive loading of the protected signal line.

Abstract translation: 公开了适用于VHF信号线上的电压浪涌抑制的大量效应氧化锌基底型的多晶压敏电阻。 该器件包括一个整体，它包括一个螺线形电感器，该螺旋电感器与该变阻器元件串联，以防止受保护信号线的电容负载。