A 95% Peak Efficiency Modified KY (Boost) Converter for IoT with Continuous Flying Capacitor Charging in DCM

2021 ◽  
Author(s):  
Wen-Liang Zeng ◽  
Caolei Pan ◽  
Chi-Seng Lam ◽  
Sai-Weng Sin ◽  
Chenchang Zhan ◽  
...  
Keyword(s):  
Boost Converter ◽  
Peak Efficiency

scholarly journals A Boost Converter Employing Quadratic Sawtooth Waveform Generator for SiPM-Based Radiation Sensors

Chemosensors ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 144
Author(s):  
Hyuntak Jeon
Keyword(s):  
Power Converter ◽  
Boost Converter ◽  
Waveform Generator ◽  
Peak Efficiency ◽  
Silicon Photomultiplier ◽  
Light Load ◽  
Radiation Sensor ◽  
Loop Bandwidth ◽  
Radiation Sensors ◽  
Sawtooth Waveform

This paper proposes an optimized step-up power converter using a quadratic sawtooth waveform generator for a silicon photomultiplier (SiPM) used as a radiation sensor for mobile radiation dosimeters. Although our step-up converter uses the topology of a switched inductor boost converter in voltage mode, it achieves a fast transient performance thanks to the proposed quadratic sawtooth waveform generator, which can increase the loop bandwidth. As a result, the proposed boost converter can stably regulate the bias voltage of an SiPM, even in a situation where the radiation particles are injected. In addition, since the proposed quadratic sawtooth waveform generator can be designed with low power, it was able to achieve 86% peak efficiency even under the light load conditions.

Implementation of a Low Power Boost Converter in-line with a Rectifier for RF Energy Harvesting Application

2021 ◽  
Vol 20 ◽  
pp. 203-207
Author(s):  
Manash Pratim Sarma ◽  
Pranjal, Barman ◽  
Kandarpa Kumar Sarma
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
Conversion Efficiency ◽  
Significant Role ◽  
High Frequency ◽  
Input Power ◽  
Boost Converter ◽  
Peak Efficiency ◽  
Percentage Conversion ◽  
Or Applications

With the growing requirement of RF coverage, harvesting and management of the associated power along with the conversion of energy into appropriate form is essential. It makes the design of relevant rectifier systems an important aspect. Attainment of a high percentage conversion efficiency (PCE) at lower input power, may not be enough if it is not supported by a DC-DC converter. A boost converter plays a significant role for managing the harvested energy for further utilization. This paper presents a simple, low power, high frequency boost converter for specific target storages or applications. It achieves a peak efficiency of 93% at a very low input power of -12dBm with the use of only two MOSFETs and for smaller value of inductance making the design feasible. Moreover it achieves a very good transient settling time of 5.5μs

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