Transient Response of a Digitally Controlled Power Supply Based on Power-SoC

POLs (Point of Load) have become important technology because they can suppress the voltage drop and reduce the power consumption of MCUs (Micro controller Unit). Then, miniaturization of power supply is required for realizing POL and Power-SoC which can implement power semiconductor devices, passive components, and control circuits on silicon wafers has attracted attention and studied in recent years. The key applications of power SoC are DVFS(Dynamic Voltage and Frequency Scaling) and envelope tracking. These applications are required fast transient response for output voltage. In this paper, we discuss the transient response of a digitally controlled power supply, which we are previously proposed.Integrated Power Conversion and Power Management (PwrSoc 2018), October 17-19, 2018, Hsinchu, Taiwa

Novel Fully Digital-Controlled Point of Load Converter Based on H-bridge DC-DC Converter

In this paper, we propose a new control algorithm for a novel fully digital-controlled H-bridge DC-DC converter, which can output the power in both boost and buck mode by only rewriting three digital codes: input voltage, output voltage, and maximum load current. In addition, the proposed algorithm improves the transient response

Novel Software Defined Power Supply Utilizing Power Supply on Chip: Power supply which outputs the regulated output voltage by only connecting the load

In this paper, we propose a novel software defined power supply using the general purpose DSP (Digital Signal Processor) and its control algorithm based on power supply on chip. The proposed power supply can regulate the output voltage only loading a program into the DSP without adjusting the parameters and changing the external parts. Also, it can change the output voltage according to the state of the load by executive instruction from the load. The simulation results show that the transient response depends on the inductance, the capacitance and the internal resistance, and expects sub-μ s. at switching frequency of 30 MHz.21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe), September 2-6, 2019, Genova, Ital