Interleaved ZVS DC/DC Converter with Balanced Input Capacitor Voltages for High-voltage Applications

Bor-Ren Lin; Huann-Keng Chiang; Shang-Lun Wang

Interleaved ZVS DC/DC Converter with Balanced Input Capacitor Voltages for High-voltage Applications

Bor-Ren Lin

Huann-Keng Chiang

Shang-Lun Wang

Vol. 14, No. 4, pp. 661-670, Jul. 2014

10.6113/JPE.2014.14.4.661

Interleaved PWM

PWM converters

Switching mode power supplies

PDF

Abstract

A new DC/DC converter with zero voltage switching is proposed for applications with high input voltage and high load current. The proposed converter has two circuit modules that share load current and power rating. Interleaved pulse-width modulation (PWM) is adopted to generate switch control signals. Thus, ripple currents are reduced at the input and output sides. For high-voltage applications, each circuit module includes two half-bridge legs that are connected in series to reduce switch voltage rating to Vin/2. These legs are controlled with the use of asymmetric PWM. To reduce the current rating of rectifier diodes and share load current for high-load-current applications, two center-tapped rectifiers are adopted in each circuit module. The primary windings of two transformers are connected in series at the high voltage side to balance output inductor currents. Two series capacitors are adopted at the AC terminals of the two half-bridge legs to balance the two input capacitor voltages. The resonant behavior of the inductance and capacitance at the transition interval enable MOSFETs to be switched on under zero voltage switching. The circuit configuration, system characteristics, and design are discussed in detail. Experiments based on a laboratory prototype are conducted to verify the effectiveness of the proposed converter.

Statistics

Show / Hide Statistics

Cumulative Counts from September 30th, 2019
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.

Cite this article

[IEEE Style]

B. Lin, H. Chiang, S. Wang, "Interleaved ZVS DC/DC Converter with Balanced Input Capacitor Voltages for High-voltage Applications," Journal of Power Electronics, vol. 14, no. 4, pp. 661-670, 2014. DOI: 10.6113/JPE.2014.14.4.661.

[ACM Style]

Bor-Ren Lin, Huann-Keng Chiang, and Shang-Lun Wang. 2014. Interleaved ZVS DC/DC Converter with Balanced Input Capacitor Voltages for High-voltage Applications. Journal of Power Electronics, 14, 4, (2014), 661-670. DOI: 10.6113/JPE.2014.14.4.661.