High-accuracy current sensing circuit with current compensation technique for buck–boost converter

2014 ◽  
Vol 102 (3) ◽  
pp. 476-489 ◽  
Author(s):  
Yuan Rao ◽  
Wan-Ling Deng ◽  
Jun-Kai Huang
Keyword(s):  
High Accuracy ◽  
Boost Converter ◽  
Current Sensing ◽  
Current Compensation ◽  
Compensation Technique

Continuous model predictive control of interleaved boost converter with current compensation

2020 ◽  
Vol 13 (17) ◽  
pp. 4079-4088
Author(s):  
Dongdong Zhao ◽  
Haiyan Li ◽  
Zehua Liang ◽  
Rui Ma ◽  
Yigeng Huangfu
Keyword(s):  
Model Predictive Control ◽  
Predictive Control ◽  
Continuous Model ◽  
Boost Converter ◽  
Current Compensation ◽  
Interleaved Boost Converter

A synchronous boost converter with high speed and high accuracy peak current control unit

2016 ◽  
Author(s):  
Shengpeng Tang ◽  
Xianzhi Meng ◽  
Donglie Gu ◽  
Jianxiong Xi ◽  
Lenian He ◽  
...  
Keyword(s):  
High Speed ◽  
Control Unit ◽  
High Accuracy ◽  
Boost Converter ◽  
Current Control ◽  
Peak Current

scholarly journals Improved Modulated Carrier Controlled PFC Boost Converter Using Charge Current Sensing Method

Energies ◽  
2018 ◽  
Vol 11 (4) ◽  
pp. 717 ◽  
Author(s):  
Jintae Kim ◽  
Chung-Yuen Won
Keyword(s):  
Control Method ◽  
Harmonic Distortion ◽  
Control Unit ◽  
Input Voltage ◽  
Boost Converter ◽  
Current Sensing ◽  
Voltage Range ◽  
Zero Current ◽  
Voltage Amplifier ◽  
Current Duration

An improved modulated carrier control (MCC) method is proposed to offer high power factor (PF) and low total harmonic distortion (THD) at a wide input voltage range and load variation. The conventional MCC method not only requires a multiplier and divider, but also is hard to be implemented with a micro controller unit without a high frequency oscillator. To overcome the problem and maintain the advantages of the conventional MCC method, the proposed MCC method adopts a current integrator, an output voltage amplifier, a zero-current duration (ZCD) demodulator of the boost inductor, and a carrier generator. Thus, it can remove a multiplier and well, as it allows for being operable with a general micro control unit. This paper presents an operation principle of the proposed control method. To verify the proposed control method, experimental results with 400 W PFC boost converter is demonstrated.

scholarly journals Design issues and performance analysis of CCM boost converters with RHP zero mitigation via inductor current sensing

2020 ◽  
Author(s):  
Mauro Leoncini ◽  
Salvatore Levantino ◽  
Massimo Ghioni
Keyword(s):  
Half Plane ◽  
Dynamic Performance ◽  
Tracking Error ◽  
Boost Converter ◽  
Design Guidelines ◽  
System Stability ◽  
Current Sensing ◽  
Practical Applications ◽  
The Right ◽  
The Impact

AbstractThe right-half plane (RHP) zero in the control to output voltage transfer function of a boost converter operating in the continuous conduction mode limits the loop bandwidth. By injecting a scaled version of the inductor current into the loop, it is possible to shift the zero from the right-half plane to the left-half plane, which leads to increased stability of the control loop. This solution generates a static voltage error at the output of the converter (tracking error), which may be unacceptable in practical applications. A few strategies to mitigate or correct this tracking error have been suggested. However, they have never been fully assessed. This paper thoroughly investigates the impact of the RHP zero mitigation technique on the dynamic performance of a boost converter, and identifies the complex trade-off between the system stability, transient response, and tracking error correction capability. Based on these findings, design guidelines are provided to help maximize system performance. A representative case study is considered to highlight the performance benefits and simulation results are presented to validate the analysis.

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