Isolated power module for private telephone communication device and telephone communication device

By introducing an isolated power supply module into dedicated telephone communication equipment and utilizing rectification, filtering, transformation, and mode switching technologies, the problem of low power extraction efficiency of the power supply module was solved, achieving efficient power transmission and electrical isolation, and improving the overall power extraction efficiency.

CN122437346APending Publication Date: 2026-07-21RONGZHITONG TECH BEIJING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
RONGZHITONG TECH BEIJING
Filing Date
2026-06-22
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing technologies, the power supply module of dedicated telephone communication equipment has poor power extraction efficiency.

Method used

An isolated power supply module is adopted, including a first rectifier module, a modulation module, a transformer module and a second rectifier module. The power transfer efficiency is improved through rectification, filtering, transformation and mode switching. Electrical isolation and mode switching are achieved by using a voltage-stabilized isolation module and an optocoupler isolation unit. The voltage-stabilized isolation module is protected by a voltage divider resistor assembly. The modulation control unit adjusts the conduction frequency to reduce losses.

Benefits of technology

It improves the power extraction efficiency of the isolation power module, achieving a high conversion efficiency of not less than 85%, and up to 89%, while reducing power loss.

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Abstract

The application discloses an isolated power module for a special telephone communication device and a telephone communication device, and belongs to the technical field of telephone communication. The isolated power module for the special telephone communication device comprises a communication module and an isolated power module. The isolated power module comprises a first rectifying module, a modulation module, a voltage transformation module and a second rectifying module. The first rectifying module is electrically connected with the modulation module, the modulation module is electrically connected with the voltage transformation module, the voltage transformation module is electrically connected with the second rectifying module, the modulation module is electrically connected with the second rectifying module, and the second rectifying module is electrically connected with the communication module. The first rectifying module is used for connecting a telephone line and rectifying and filtering the electric energy transmitted from the telephone line. The voltage transformation module is used for transforming the voltage of the electric energy subjected to the rectification and filtering.
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