A digital-analog integrated circuit dedicated to driving the valve body of a gas water heater

By designing a special digital-to-analog integrated circuit for gas water heater valve body drive, integrating microcontroller units and digital-to-analog integrated chips, the complex and cost problems in the existing technology are solved, and the circuit simplification, improvement of integration and enhanced safety are achieved.

CN111752191BActive Publication Date: 2025-03-21SHENDE BAIWEI ELECTRONIC CO LTD
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Patent Information

Application Number
CN202010512833.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-06-08
Publication Date
2025-03-21
Estimated Expiration
2040-06-08

AI Technical Summary

Technical Problem

The existing gas water heater valve body control circuit is complex and has a wide range of components, resulting in large circuit board size and high cost, which is not conducive to the integration of circuits.

Method used

Design a special digital-to-analog integrated circuit for gas water heater valve body drive. Through the integrated microcontroller unit MCU and digital-to-analog integrated chip, built-in driving circuit module and logic control center, simplifying circuit layout and reducing the number of components.

Benefits of technology

It realizes the reduction of circuit board size and cost reduction, improves the integration and reliability of the circuit, and enhances safety, and has multiple safety protection functions such as fault detection, overcurrent detection, and voltage detection.

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Abstract

The present invention discloses a special digital-analog integrated circuit for driving a gas water heater valve body, comprising a microcontroller unit MCU, a digital-analog integrated chip A and a digital-analog integrated chip B, wherein the digital-analog integrated chip A is electrically connected to the microcontroller unit MCU, a first solenoid valve and a second solenoid valve, and a first drive circuit module electrically connected to the first solenoid valve and a second drive circuit module electrically connected to the second solenoid valve are integrated in the digital-analog integrated chip A; the digital-analog integrated chip B is electrically connected to the microcontroller unit MCU, a third solenoid valve and a proportional control valve, and a third drive circuit module electrically connected to the third solenoid valve and a fourth drive circuit module electrically connected to the proportional control valve are integrated in the digital-analog integrated chip B. In terms of overall circuit design, the present invention has high integration, good reliability and multiple safety protections, and can greatly simplify the circuit layout and reduce the number of components on the circuit board, thereby greatly reducing the size of the circuit board and reducing costs.
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