Low voltage and high current DC/DC conversion technology
Low-voltage, high-current and high-power DC/DC conversion technology has dropped from 3.3V in previous years to about 1.0V now, and the current can now reach tens to hundreds of amps. At the same time, the output indicators of the power supply, such as ripple, accuracy, efficiency, overshoot, overshoot and other technical indicators, have also been further improved. All these make the research on this branch of technology become a hot spot in the power electronics community today and even in the future. Its research content is very extensive, including research on dynamic problems of circuit topology (especially large-signal dynamic problems of loads), synchronous rectification technology, control technology and other related technologies, such as wiring, integrated magnetic technology, packaging technology, high-frequency power Device technology, etc.
The rapid development of ultra-high-speed computers and ultra-large-scale integration technology has put forward increasingly higher requirements for their power supplies. Among them, the supply voltage is required to continuously decrease (which is a prerequisite for increasing the speed), and the supply current is increasing day by day. Low-voltage and high-current DC/DC conversion technology is facing many new problems.
1. Low-voltage and high-current DC/DC conversion technology without transient requirements
This type of converter is aimed at low-voltage and high-current DC/DC conversion technology where the load changes extremely quickly. It does not have any transient requirements, and it is relatively easy to implement. For this type of technology, various topological structures, self-driven synchronization technology and some integrated magnetic technologies are mainly summarized.