With the popularity of mobile intelligent products, the battery capacity is an urgent problem to be solved. In order to simplify the structure of the traditional portable power supply, enhance its dependability, according to the structure characteristics and principles of mobile power supply, based on PSoC (programming system on chip) technology, with the IDE PSoC Creator as the development platform, a design scheme based on the Cypress PSoC was put forward. The details of hardware circuit and software flow were given. The system makes full use of the advantages of mixed design of PSoC on anal...