Pwm Modulation Switching Power Supply

Nowadays, electronic systems become more and more popular with the development of electronic science and technology. As the most important part of electronic systems, power supply is becoming more and more versatile. And it has been developing towards the trend of lighter, more flexible, and more efficient.In this paper, a new PWM monolithic switched power supply circuit is researched. The author firstly introduces the basic theories about PWM then under the guidance of methodology of integrated circuits design the author has designed the total circuit. At last, the author simulates functions of every module.