Design of a New Type of Applied DC/DC Converter is a Current Sampling Circuit

This paper presents a power supply used in switching DC / DC converter new current sampling circuit, the main power drop by detecting switch series inductor current is sampled on to replace traditional detection sampling resistor voltage power on the bus on the drop method. Methods currently required less resistance, more efficient, low power consumption, and the drop of the inductor current changes in higher sensitivity, so better to improve the current sampling accuracy.