Overcurrent Protection Mechanisms for Power Supplies
Overview of power supply output current limiting: fuse, constant-current, foldback, and hiccup overcurrent protection, with effects on startup and components.
Power & New Energy Solutions
Custom eVTOL Battery Designs Needed to Solve Plating Issues
ORNL study finds current lithium-ion cells fail under eVTOL takeoff profiles—15C discharge causes anode plating and cathode instability, needing tailored battery chemistries.
E-bike Battery Level Monitoring and Alarm Circuit
Technical description of an e-bike battery level indicator and low-voltage alarm using a 12V regulator, LM324 comparators and TL494 drive disable at 30V.
Tesla 4680 Cell Performance and Characteristics
Technical summary of Tesla 4680 cell: three-electrode analysis, electrical impedance and capacity measurements, and thermal testing revealing elevated surface temperatures.
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.
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.
