A universal 1553b bus circuit anti-fuse adjustment jig

Abstract

The invention discloses a universal 1553B bus circuit anti-fuse adjusting clamp comprising a shell, rotating shafts, swing arms, pin bases, a rotating rod, push rods, ejecting rods and a locating screw. The shell is a cube. The swing arms are H-shaped plates. The top surface of the shell is provided with a step hole used for installing the rotating rod. The bottom surface of the shell is providedwith step grooves used for bus circuit anti-fuse adjustment. The side surface of the shell is provided with through holes used for installing push rods, a screw hole used for installing and locating the locating screw and step taper holes used for installing the ejecting rods, wherein the through holes, the screw hole and the step taper holes are arranged along the direction from the top surface to the bottom surface in turn. The side surface of the shell is provided with bosses used for assembling the swing arms. The bosses and the swing arms are provided with through holes used for installing the rotating shafts. The position, which are corresponding to the step grooves of the bottom surface of the shell, of the swing arms are provided with grooves used for installing the pin bases and through holes used for installing pins. Reliable bus circuit anti-fuse adjustment can be realized through cooperation of the shell, the rotating shafts, the swing arms, the pin bases, the rotating rod,the push rods, the ejecting rods and the locating screw so that the defects of the conventional adjusting clamp tool can be compensated.

Description

technical field [0001] The invention relates to a universal 1553B bus circuit antifuse adjusting fixture, which belongs to the technical field of circuit testing. Background technique [0002] The 1553B bus originated in the 1970s. Due to its high reliability and stability, it is widely used in aerospace, aviation, weapons and other fields. However, the performance of the 1553B bus circuit is affected by various factors such as process errors, resulting in poor batch consistency of output Vos, VthD, Vpp and other important parameters, which limits its application. In order to solve the problem of batch consistency of key parameters, an anti-fuse adjustment unit is introduced in the circuit design to adjust it. [0003] In order to facilitate domestic circuits to replace imported circuits, the current domestic related 1553B bus series circuits are fully compatible with American DDC products in terms of package form, and the MCP package places the adjustment pins on the side ...

AI Technical Summary

Problems solved by technology

However, the existing adjustment fixtures in the domestic market have poor adjustment accuracy and low adjustment efficiency, which cannot meet the actual needs of batch debugging and adjustment of 1553B bus circuits.

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