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ISSN (Print): 2352-0965
ISSN (Online): 2352-0973

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Research Article

5V to 6kV DC-DC Converter Using Switching Regulator with Cockcroft-Walton Voltage Multiplier for High Voltage Power Supply Module

Author(s): Nor A. Azmi, Sohiful A.Z. Murad*, Azizi Harun and Rizalafande C. Ismail

Volume 12, Issue 2, 2019

Page: [162 - 171] Pages: 10

DOI: 10.2174/2352096511666180605094827

Price: $65

Abstract

Background: This paper describes the design of 5 V to 6 kV DC-DC converter by using a switching regulator with Cockroft-Walton (C-W) voltage multiplier for a high voltage power supply module.

Methods: The proposed design consists of Pulse Width Modulation (PWM) controller circuit, voltage multiplier, and feedback signal. A single unit of 5 V input triggers LT1618 controller circuit to generate 20 V which then produces 300 V from LT8331 output that is connected to diode-capacitor multiplier circuit to achieve final 6 kV. A negative feedback signal is required to stabilize an output voltage. With the implementation of C-W voltage multiplier technique, the output is boosted up as required from the input signal voltage 5 V DC.

Results: The LTspice simulation results indicate that the proposed DC converter can generate 6.20 kV. Line regulation of 17 % and the load regulation of 14 % are obtained based on the proposed design.

Conclusion: The proposed design is suitable for high voltage power supply module.

Keywords: DC-DC converter, high voltage, power supply, switching regulator, voltage multiplier, current controlled mode.

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