An inventive approach of stability for Voltage Regulator Modules with high frequency multiphase buck converters

2012 ◽  
Author(s):  
Mini. P. Varghese ◽  
A. Manjunatha ◽  
C. N. Raghu
Keyword(s):  
High Frequency ◽  
Voltage Regulator ◽  
Buck Converters ◽  
Voltage Regulator Modules

scholarly journals Design and development of multiphase buck converters for voltage regulator modules

2022 ◽  
Vol 12 (1) ◽  
pp. 239
Author(s):  
Mini Puthenpurakkal Varghese ◽  
Ashwathnarayana Manjunatha ◽  
Thazhathu Veedu Snehaprabha
Keyword(s):  
Closed Loop ◽  
Input Voltage ◽  
Voltage Regulator ◽  
Buck Converters ◽  
Loop Control ◽  
Switching Converter ◽  
Voltage Regulator Modules ◽  
Load Demand ◽  
Computing Complexity ◽  
Control Scheme

<p>Modern microprocessors in high-power applications require a low input voltage and a high input current, necessitating the use of multiphase buck converters. As per microprocessor computing complexity, the power requirements of the switching converter will also be more important and will be increasing as per load demand. Previous studies introduced some methods to achieve the advantages associated with multiphase regulators. This paper presents an effective closed closed-loop control scheme for multiphase buck converters that reduces ripple and improves transient response. It is suitable for applications that require regulated output voltage with effectively reduced ripple. The analysis began with a simulation of the entire design using the OrCAD tool, followed by the construction of a hardware setup. Experiments on a 200 Khz, 9 V, 12 A, 2-phase buck voltage regulator were conducted and the proposed experiment found to be useful.</p>

Analysis and Design of IGBT Driving and Protection Circuit for Photovoltaic Grid-Connected Inverter

2011 ◽  
Vol 130-134 ◽  
pp. 4118-4121
Author(s):  
Shu Qiu Gong ◽  
Ming Tang ◽  
Li Yan Cui
Keyword(s):  
Threshold Voltage ◽  
High Frequency ◽  
Film Structure ◽  
Voltage Regulator ◽  
Practical Application ◽  
Calculation Methods ◽  
Analysis And Design ◽  
Insulated Gate Bipolar Transistor ◽  
Protection Circuit ◽  
Grid Connected Inverter

For the characteristics of high frequency of switching devices in the photovoltaic inverter and complexity of circuit topology, the insulated gate bipolar transistor driving protection circuit is designed which is suitable for photovoltaic inverter. The circuit which is based on thick film structure of M57962L has isolated power supply and threshold voltage regulator circuits. The control and regulation can be achieved precisely for the threshold voltage of over current protection. The internal structure of M57962L has been analyzed here. The process of slow turn off action is observed practically. For the circuit periphery parameters of M57962L, the general calculation methods are given according to various models and the level of protection for IGBT. The practical application shows that the method is correct and effective.

Sign in / Sign up

Export Citation Format

Share Document