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A voltage doubler circuit integrates two main components: a clamping section and a rectifier section. The clamping section consists of a capacitor (C1) and a diode (D1), whereas the rectifier section is equipped with another diode (D2) and capacitor (C2). This circuit produces an output voltage with twice the amplitude of the sinusoidal input voltage.

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Related Experiment Video

Updated: Jan 16, 2026

Experimental Investigation of the Hierarchical Control in DC Microgrids Using a Real-time Simulator

Experimental Investigation of the Hierarchical Control in DC Microgrids Using a Real-time Simulator

Published on: February 14, 2025

Improved Operation of the Modified Non-Inverting Step-Down/Up (MNI-SDU) DC-DC Converter.

Juan A Villanueva-Loredo¹, Julio C Rosas-Caro², Panfilo R Martinez-Rodriguez¹

¹School of Sciences, Universidad Autónoma de San Luis Potosí (UASLP), San Luis Potosí 78295, San Luis Potosí, Mexico.

|September 27, 2025

Summary

This study introduces an enhanced strategy for the Modified Non-Inverting Step-Down/Up (MNI-SDU) DC-DC converter. Asynchronous control of duty cycles significantly reduces ripples and electrical stress, improving overall efficiency for battery voltage regulation.

Keywords:

PWM converter asynchronous duty-cycle control battery voltage regulation buck-boost converter non-pulsating input current two-loop control voltage regulator

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Area of Science:

Electrical Engineering
Power Electronics
Control Systems

Background:

Conventional DC-DC converters often face limitations in efficiency and component stress.
Battery voltage regulation requires stable and efficient power conversion solutions.

Purpose of the Study:

To enhance the operational strategy of the Modified Non-Inverting Step-Down/Up (MNI-SDU) DC-DC converter.
To optimize performance by reducing voltage/current ripples and electrical stress.

Main Methods:

Developed an asynchronous control strategy for two duty cycles with a fixed time offset.
Defined suitable duty cycle ranges for optimal converter operation.
Implemented a model-based control strategy with a PI-PI current-mode controller designed using loop shaping.

Main Results:

The asynchronous duty-cycle control significantly reduced current and voltage ripples.
Electrical stress on capacitors and semiconductors was notably decreased.
Overall efficiency and output voltage regulation were improved.

Conclusions:

The proposed enhanced operation strategy offers superior performance for the MNI-SDU converter.
This method is well-suited for compact and reliable battery voltage regulation applications.