DSP-Based Grid-Tied Photovoltaic Inverter Design Grid-tied photovoltaic (PV) inverters serve as the critical interface between solar arrays and utility infrastructure—converting DC power from panels into high-fidelity, synchronized AC power compliant with IEEE 1547 and IEC 61727. Modern implementations increasingly rely…
LCL Filter Design for Grid-Tied Inverters: Parameter Selection and Damping Grid-tied inverters—used in solar PV systems, wind turbines, and battery energy storage—are required to deliver high-fidelity sinusoidal current into the utility grid while meeting stringent harmonic limits (e.g., IEEE 1547,…
SMPS Transformer Winding Techniques and Manufacturing Switch-mode power supply (SMPS) transformers are critical magnetic components that enable efficient voltage conversion, isolation, and regulation in modern power electronics. Unlike line-frequency transformers, SMPS transformers operate at high frequencies (typically 20 kHz to…
Switch-Mode Power Supply Fault Diagnosis and Troubleshooting Switch-mode power supplies (SMPS) are the backbone of modern electronics—from consumer adapters to industrial motor drives. Their high efficiency and compact size come at the cost of complexity: dozens of interdependent components operating…
Adjustable Linear Power Supply Circuits: Design Guide and 8 Practical Schematics Linear power supplies remain indispensable in precision analog circuits, low-noise instrumentation, audio amplifiers, and lab bench applications—despite the efficiency advantages of switching topologies. Their hallmark traits—ultra-low output noise, zero…
SMPS EMC Design: Practical Techniques for Conducted and Radiated Emissions Switch-mode power supplies (SMPS) are indispensable in modern electronics—offering high efficiency, compact size, and wide input/output flexibility. Yet their inherent fast-switching operation (often 100 kHz–3 MHz) generates rich harmonic spectra…
Switch-Mode Power Supply Topology Selection: Forward, Push-Pull, Half-Bridge and Full-Bridge Choosing the right isolated DC–DC converter topology is a foundational decision in power supply design—impacting efficiency, size, cost, reliability, and thermal management. While flyback converters dominate low-power applications due to…
1500W PFC + Phase-Shifted Full-Bridge Power Supply: Board-Level Teardown and Analysis This article presents a comprehensive board-level teardown and technical analysis of a commercial 1500W industrial-grade AC–DC power supply featuring an active continuous-conduction-mode (CCM) boost PFC front-end followed by a…
Phase-Shifted Full-Bridge DC-DC Converter Design and Analysis The phase-shifted full-bridge (PSFB) converter stands as a cornerstone topology in medium-to-high-power isolated DC-DC applications—especially where efficiency, thermal management, and EMI performance are critical. Widely deployed in telecom rectifiers, server PSUs, EV battery…
LLC Resonant Converter Design with the L6599 Controller The LLC resonant converter has become the topology of choice for high-efficiency, high-power-density AC–DC power supplies in datacenter servers, telecom rectifiers, and USB-C PD adapters. Its ability to achieve zero-voltage switching (ZVS)…