Fabricating method of transformer for float filament modulator in microwave power module

Abstract

The invention discloses a fabricating method of a transformer for a float filament modulator in a microwave power module, which reduces the size of the whole transformer through the winding technology and ensures the withstand voltage between low voltage and floating high voltage. According to the method, a traveling wave tube start positive power source wingding, a traveling wave tube stop negative power source winding, voltage stabilizing circuit + / -15V power supply windings and a filament heating voltage winding all of the modulator are wound on a framework in a layered manner; polyamide adhesive tapes are adopted for realizing layer isolation; the voltage stabilizing circuit + / -15V power supply windings of the modulator are wound on the same layer with the space of 2mm at least; a primary winding, a low voltage 15V power source winding and a low voltage 12V power source winding are wound on the outer layer of a high voltage side winding in a layered manner; the filament heating voltage winding layer is next to the primary winding layer; the filament heating voltage winding and the primary winding occupies the same width; at least five layers of polyamide adhesive tapes are wound between the filament heating voltage winding and the primary winding for isolation; finally, the framework for winding an enameled wire and a magnetic core are combined, placed into a die and sealed in an epoxy manner.

Description

technical field [0001] The invention relates to the technical field of magnetic element design, in particular to a manufacturing method for a multi-winding transformer used in a microwave power module to supply power to a floating filament modulator and a power converter. Background technique [0002] The microwave power module is a building block power component mainly used in electronic system equipment such as microwave data link communication, radar, electronic countermeasures and guidance instruments. [0003] The microwave power module includes a power converter, two transformers, a floating filament modulator and a rectification and filtering module; the power converter drives two transformers, one supplies power to the floating filament modulator, and the other supplies power to the rectification and filtering module. This invention focuses on transformers that power floating filament modulators. [0004] The floating filament modulator side requires three high-side...

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Problems solved by technology

[0010] There is currently no transformer that satisfies the above conditions

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