DOI: 10.22184/1993-8578.2021.14.7-8.412.423

The paper presents the principles of designing a three-channel voltage regulator. Modern technologies for intelligent power management allow of implementing complex functionality within a single circuit. One of the possible applications of power management systems is their use as voltage regulators. Here, an important role is played by such system parameters as the generated voltage levels and / or currents, real-time temperature monitoring and various types of errors that such a key reports to the central controller in real time. The minimum switching time of such a regulator reduces likelihood of an error associated with noise from the power supply circuits of the microcircuit. Intelligent power management technologies allow the development of a variety of specialized systems such as anti-lock brakes, airbag control or engine management in car electronics. As well as the systems similar in structure in the fields of industrial electronics, telecommunications and data processing. Currently available systems allow to manage power and external systems and analyze systems for errors or hazardous conditions. The proposed solution allows to provide a stable output voltage of 5V in a wide range of input voltages from 5.5 to 45V, with an output current of up to 450mA in the main channel and up to 150mA and 50mA in the auxiliary ones. The paper describes the main functions of the design, such as the function of limiting the output current, protection against reverse polarity, temperature protection, the function of limiting the excess of the output voltage, as well as the digital function of the built-in "watch dog" timer intended for connecting the design to a microcontroller unit.


Разработка: студия Green Art