Common Current Transformer Wiring Configurations
Overview of current transformer (CT) wiring schemes - single CT, incomplete star, differential, star/delta, and zero-sequence configurations for measurement and protection.
Power & New Energy Solutions
12 Operating States in High-Power LLC Design
Detailed analysis of the LLC resonant converter's 12 operating states, explaining resonant tank behavior, magnetizing current, and ZVS timing for high-power designs.
EV DC Charging Module Functional Diagram
Technical overview of DC charging stations: AC-DC module design, charging module control and protection, connector specifications, and thermal management for high-power charging.
Why Power Inductors in DC-DC Converters Squeal
Explains causes of audible squeal in power inductors in DC-DC converters, including magnetostriction, leakage flux and variable-frequency excitation, plus practical countermeasures.
Voltage-to-Current Converter Circuits: Simulation Analysis
Technical overview of voltage-to-current (V/I) converters: op-amp plus transistor and alternative feedback topologies, simulation load-capability, and XTR111 integration.
PV Power Forecasting System Architecture
PV power forecasting system architecture, data collection, model training, forecast outputs and deployment with network isolation for secure on-site operation.
High Output Ripple in Buck DC-DC Regulator: Circuit Analysis
Troubleshooting XL1509-ADJ buck regulator: large 14V output ripple resolved by following datasheet compensation (CFF) guidance or lowering output to 12V.
Why Parallel Power Capacitors Often Use a 100x Ratio
Shows how parallel capacitors (10uF+0.1uF) spread self-resonant frequencies, reducing anti-resonance and widening decoupling/filtering bandwidth versus 1uF+0.1uF.
Power-line Conducted Emissions: Analysis and Localization
Power-line conducted emissions testing, localization, and mitigation: LISN-based differential/common-mode analysis, AC input filters, ferrites, chokes, and PCB layout tuning.
Power Supply Ripple: Measurement and Suppression Methods
Technical overview of power supply ripple: causes, effects, ripple measurement techniques with oscilloscope, and methods for suppression including filtering and loop design.
Why a Bootstrap Capacitor C1 Is Used in Buck Converters
Explains why a bootstrap capacitor (C1) is used in buck converters: it forms a floating supply to power the high-side gate driver and enable MOSFET switching.
What Is Power Factor? UPS Load Power Factor Guide
Explains power factor fundamentals and how UPS rated load power factor differs from load input power factor, causing inverter derating and reactive current effects.
