Burst-Mode CMOS Transimpedance Amplifier Based on a Regulated-Cascode Circuit with Gain-Mode Switching

2019 ◽  
Vol E102.A (6) ◽  
pp. 845-848
Author(s):  
Takuya KOJIMA ◽  
Mamoru KUNIEDA ◽  
Makoto NAKAMURA ◽  
Daisuke ITO ◽  
Keiji KISHINE
Keyword(s):  
Mode Switching ◽  
Transimpedance Amplifier ◽  
Burst Mode

scholarly journals Evaluation of a Three-Phase Bidirectional Isolated DC-DC Converter with Varying Transformer Configurations Using Phase-Shift Modulation and Burst-Mode Switching

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2836
Author(s):  
Nuraina Syahira Mohd Sharifuddin ◽  
Nadia M. L. Tan ◽  
Hirofumi Akagi
Keyword(s):  
Phase Shift ◽  
Voltage Drop ◽  
Load Condition ◽  
Mode Switching ◽  
Power Transfer ◽  
Burst Mode ◽  
Light Load ◽  
Three Phase ◽  
Efficiency Performance ◽  
Intermittent Switching

This paper presents the performance of a three-phase bidirectional isolated DC-DC converter (3P-BIDC) in wye-wye (Yy), wye-delta (Yd), delta-wye (Dy), and delta-delta (Dd) transformer configurations, using enhanced switching strategy that combines phase-shift modulation and burst-mode switching. A simulation verification using PSCAD is carried out to study the feasibility and compare the efficiency performance of the 3P-BIDC with each transformer configuration, using intermittent switching, which combines the conventional phase-shift modulation (PSM) and burst-mode switching, in the light load condition. The model is tested with continuous switching that employs the conventional PSM from medium to high loads (greater than 0.3 p.u.) and with intermittent switching at light load (less than 0.3 p.u), in different transformer configurations. In all tests, the DC-link voltages are equal to the transformer turns ratio of 1:1. This paper also presents the power loss estimation in continuous and intermittent switching to verify the modelled losses in the 3P-BIDC in the Yy transformer configuration. The 3P-BIDC is modelled by taking into account the effects that on-state voltage drop in the insulated-gate bipolar transistor (IGBTs) and diodes, snubber capacitors, and three-phase transformer copper winding resistances will have on the conduction and switching losses, and copper losses in the 3P-BIDC. The intermitting switching improves the efficiency of the DC-DC converter with Yy, Yd, Dy, and Dd connections in light-load operation. The 3P-BIDC has the best efficiency performance using Yy and Dd transformer configurations for all power transfer conditions in continuous and intermittent switching. Moreover, the highest efficiency of 99.6% is achieved at the light power transfer of 0.29 p.u. in Yy and Dd transformer configurations. However, the theoretical current stress in the 3P-BIDC with a Dd transformer configuration is high. Operation of the converter with Dy transformer configuration is less favorable due to the efficiency achievements of lower than 95%, despite burst-mode switching being applied.

A 50 Gbit/s PAM-4 Linear Burst-Mode Transimpedance Amplifier

2019 ◽  
Vol 31 (12) ◽  
pp. 951-954 ◽  
Author(s):  
Gertjan Coudyzer ◽  
Peter Ossieur ◽  
Laurens Breyne ◽  
Marion Matters ◽  
Johan Bauwelinck ◽  
...  
Keyword(s):  
Transimpedance Amplifier ◽  
Burst Mode

scholarly journals Low-load Efficiency Improvement of a Three-Phase Bidirectional Isolated DC-DC Converter (3P-BIDC) Via Enhanced Switching Strategy

2018 ◽  
Vol 7 (4.35) ◽  
pp. 932 ◽  
Author(s):  
N. S. Mohd Sharifuddin ◽  
N. M. L. Tana ◽  
H. Akagi
Keyword(s):  
Phase Shift ◽  
Load Condition ◽  
Mode Switching ◽  
Switching Strategy ◽  
Burst Mode ◽  
Modulation Technique ◽  
Three Phase ◽  
Low Load ◽  
Low Efficiency ◽  
Load Conditions

This paper presents the system design, operation and enhanced switching strategy of a three-phase bidirectional isolated dc-dc converter (3P-BIDC). The paper discusses the operating modes of the 3P-BIDC using phase-shift modulation (PSM), with analysis on its soft-switching characteristics. The phase-shift modulation is the simplest modulation technique that can be applied to the 3P-BIDC. However, it comes with the consequences of low efficiency performance in the low-load conditions. Therefore, this paper investigates the improvement in efficiency of the 3P-BIDC during low-load condition using an enhanced switching strategy combining burst-mode switching and phase-shift modulation. The model of a 700-V, 100-kW, 20-kHz 3P-BIDC and the enhanced switching strategy are verified via simulation using PSCAD. The simulation results shows that the combination of burst-mode and phase-shift modulation technique improves the efficiency of the 3P-BIDC at low-load conditions.  

scholarly journals 1.25 Gbit/s ITU-T G.984.2 burst-mode transimpedance amplifier without reset pins

2007 ◽  
Vol 43 (18) ◽  
pp. 991 ◽  
Author(s):  
P. Ossieur ◽  
T. De Ridder ◽  
J. Bauwelinck ◽  
E. De Backer ◽  
J. Gillis ◽  
...  
Keyword(s):  
Transimpedance Amplifier ◽  
Burst Mode
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