A Novel Wide Duty Cycle Range Wide Band High Frequency Isolated Gate Driver for Power Converters

Naik, BS and Shan, S and Umanand, L and Reddy, BS (2018) A Novel Wide Duty Cycle Range Wide Band High Frequency Isolated Gate Driver for Power Converters. In: IEEE Transactions on Industry Applications, 54 (1). pp. 437-446.

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Abstract

This paper presents a novel single source fed isolated gate driver circuit based on the dual-forward converter topology. The two forward converters are paralleled at the secondary side to achieve 0-100 % duty cycle range together with galvanic isolation. The gate driver switching frequency is independent of the main pulse-width modulation frequency (PWM). As a result, the gate driver switching devices and magnetics are designed for high frequencies independent of the main PWM frequency. At high frequencies, problems of resonance due to parasitics become significant. This paper discusses this problem and proposes a novel solution to mitigate it. In addition, this paper also presents a novel solution and circuit to produce negative gate pulse for miller clamp. The proposed circuit can be used for any application, irrespective of switching frequency, thus making it a wide band generalized gate driver. The circuit is analyzed and verified experimentally.

Item Type:	Journal Article
Publication:	IEEE Transactions on Industry Applications
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to the IEEE.
Keywords:	Electric network analysis; Insulated gate bipolar transistors (IGBT); Pulse width modulation; Resonance; Voltage control, Forward converters; Galvanic isolation; Gate drive circuits; Gate driver circuit; MOSFETs; Short-circuit protection; Switching devices; Wide duty-cycle range, MOSFET devices
Department/Centre:	Division of Electrical Sciences > Electronic Systems Engineering (Formerly Centre for Electronic Design & Technology) Division of Electrical Sciences > Electrical Engineering Division of Interdisciplinary Sciences > Interdisciplinary Centre for Energy Research
Date Deposited:	03 Aug 2022 08:55
Last Modified:	03 Aug 2022 08:55
URI:	https://eprints.iisc.ac.in/id/eprint/75241

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