The high-frequency switch-mode power supply for electricity can operate independently to perform various basic functions and also work in parallel combinations with excellent parallel current distribution. By connecting to a microcomputer, the high-frequency switch-mode DC power supply can achieve the four remote functions of "telemetry, telesignaling, telecontrol, and telemetering." The high-frequency switch-mode DC power supply features comprehensive protection functions, ensuring the independent operation of modules or module groups and the safety and stability of the system under microcomputer monitoring. The high-frequency switch-mode DC power supply module employs a master-slave bus sampling current distribution control method. The engineer explains the connections and data transmission methods between master and slave devices, basic master-slave configurations, and how SPI allows data bits to be moved from the master to the slave device, and vice versa. Since SPI is not standardized, the specific definitions of devices from different manufacturers vary; some transmit the most significant bit (MSb) first, while others start with the least significant bit (LSb).
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