David Marroqui

Miguel Hernández University of Elche | UMH · Department of Material Science, Electronic Optic and Technology

This work describes the implementation of three Maximum Peak Power Tracking methods devised for small satellites. The three methods are the Analog oscillating Maximum Power Point Tracking, the Analog Global Maximum Peak Power Tracking and the Analog Global Maximum Output Power Tracking. An interplanetary mission (Mars-Asteroid belt) with complex po...

This paper proposes a solar array regulation technique for a high-voltage satellite power bus. The regulation method combines on-off control at low frequency, i.e. kHz range, of highly efficient isolated and unregulated dc-dc converters operating at high frequency, i.e. hundreds of kHz. Although this technique can adopt different implementations, t...

Power distribution using latching current limiters (LCLs) [also known as solid-state power controllers (SSPCs)] is very common for 28- and 50-V bus voltage distribution on European satellite platforms. However, 100-V and even higher voltage distribution platforms generally do not employ the same approach as lower bus voltage platforms since the com...

This article describes the design and implementation of a dc–dc converter used to power a microsatellite on-board electrolyzer. The proposed topology is a four-phase interleaved synchronous buck converter with output current control. The proposed converter is single point failure free (SPFF), so in case of any individual component failure, the func...

This paper details the design and implementation of a photovoltaic current – voltage (I-V) tracer. The I-V tracer employs a capacitive load controlled by a raspberry pi model 4B. The complete measurement system includes protections, capacitor charging/discharging power electronics and current, voltage, irradiance and temperature sensors. Results, w...

This paper introduces a Solid State Circuit Breaker with Latching and Current Limiting capabilities for DC distribution systems. The proposed circuit uses very few electronic parts and it is fully analog. A SiC N-MOSFET driven by a photovoltaic driver and a maximum current detector circuit are the core elements of the system. This work details circ...

Nowadays, MOSFET SiC semiconductors short circuit capability is a key issue. SiC/Si Cascodes are compound semiconductors that, in some aspects, show a similar MOSFET behaviour. No interlayer dielectric insulation suggests, in theory, Cascode JFETs as more robust devices. The purpose of this paper is to compare the drift and degradation of two comme...

This paper presents a new ultrafast dc solid-state circuit breaker (SSCB) that uses a silicon carbide cascode as the main switching and limiting semiconductor and an isolated photovoltaic driver to control it. The proposed topology is self-powered and fully implemented with discrete parts. The SSCB's cascode can work in three different states—fully...

Fuel cell power conditioners often require high step-up voltage gains to accommodate low input fuel cell voltages into high voltage busses. Traditional non-isolated DC-DC boost converters are unable to offer such as gains because of several parasitic elements and non-ideal behaviour of power semiconductors and driving circuits. Moreover, paralleled...

In this paper a comparative analysis between different kinds of Silicon Carbide (SiC) transistors applied to the Sequential Switching Shunt Regulator (S3R) with active current limitation capability is presented. The S3R is a well-known Direct Energy Transfer photovoltaic power conditioner used in space vehicles. The main novelty discussed in this p...

This paper presents a System-on-Chip design for real-time satellites photovoltaic curves telemetry. In these applications, the limitation of memory and communication bandwidth makes quite difficult to store and to transmit the whole characteristic I-V curve of any solar section in real-time. The proposed solution is based on the real-time calculati...