In this paper a unique switching methodology is proposed for the SMPS with DC-DC Buck converter present in the Power Management Unit of a mobile device, focused on in case of D2D communications. During D2D communications it is observed that the power requirements of the participating parts of the device alter frequently, demanding changes in voltage shifts by the supplying converter. It is so because of the nature of device to device communications to switch between different levels of frequencies and power levels of transmission and reception that this loss arises. During this high frequency shifting of voltages, in actual, there is high frequency switching taking place. It is performed in two modes-PWM and PFM. The transition between the two modes is done to operate accordingly in high power and low power mode, is where the switching losses occur. Improving the switching cycles and methodology we can attempt to achieve improvement in the power transfer thus increase overall efficiency in power consumption.
Volume 12 | Issue 2