In modern society, digital switching power supply plays an irreplaceable role in the field of electronic industry. Digital switching power supply has been successfully applied to transportation, medical treatment, mechanical aviation and other different fields, which also reflects the importance of digital switching power supply, and the design of digital switching power supply is also extremely important. Through efficient related design, we can realize the importance of digital switching power supply. The design method ensures the stability and continuity of digital switching power supply, so as to meet the needs of many industries. Therefore, this paper mainly discusses the PWM controller and MOSFET integrated chip and discusses the voltage adjustable digital switching control power supply circuit control<br>
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