ALLPCB
Silicon Carbide Power Devices: Properties and Principles
Review of silicon carbide (SiC) power devices covering principles, key characteristics, applications and challenges for high-efficiency power electronics and energy conversion.
SiC Power Devices: Advantages and Applications
SiC power devices: learn fundamentals, benefits, applications, challenges and future trends for efficient, compact power electronics.
Transistor Switch Circuit Design Principles
Technical overview of transistor switch circuits: NPN/PNP operation, saturation/cutoff design and Schottky clamp technique for faster turn-off.
IGBT Thermal Mechanisms and Interface Materials
Overview of IGBT heat conduction and how thermal interface materials (thermal grease, phase-change TIMs) reduce contact resistance to improve cooling and reliability.
Performance Advantages of SiC Devices in On-Board Chargers
SiC-based bidirectional OBCs boost EV charging efficiency, power density and V2G functionality while tackling cost and reliability challenges.
Role of a 100Ω Resistor in MOSFET Gate Circuits
Explore the role of a 100Ω resistor in MOSFET gate circuits, its impact on performance, and oscillation suppression for engineers.
MOSFET Application Examples and Basics
Learn MOSFET fundamentals: types, pins, gate resistor, parasitic capacitances/diode and how to use MOSFETs as fast, reliable electronic switches.
IGBT Module Packaging Process: Technical Details
Learn IGBT module packaging, manufacturing, thermal design, soldering, wire bonding and reliability for power conversion, EVs, rail, renewables.
TVS Key Parameters and Selection Guide
Learn how to select TVS diodes: understand Vrwm, VBR, VC, IPP, capacitance and leakage with step-by-step selection process and design example.
Three Ways to Suppress Power Diode Reverse Recovery
Compare RC snubbers, series saturable reactors, and soft-switching to suppress diode reverse recovery in buck converters; series reactors best.
Op Amp Sample-and-Hold Circuit Operation
Learn how sample-and-hold circuits capture and hold analog voltages, key timings, components, performance and applications for ADCs.
3 Classic Op Amp Circuit Analyses
Guide to op amp circuits: using virtual short to analyze inverting, noninverting, summing and balanced summing amplifiers with practical examples.
IGBT Lossless Snubber Design Principles
IGBT hard vs soft switching, snubber absorption and passive lossless snubbers to cut switching losses, EMI and boost converter reliability.
Fixing MOSFET Overheating at Low Currents
MOSFET guide: breakdown modes, low-current heating, reverse-polarity protection, thermal fixes and power-loss measurement for reliable designs
Handling Unused Op Amp or Comparator Pins
Guidance on terminating unused op amp sections and comparators to avoid floating inputs: use voltage followers to set inputs to ground or VCC/2.
Resistor Applications: Typical Circuit Uses and Analysis
Guide to common resistor applications in PCB design: current limiting, pull-ups, series termination, RC delays, voltage dividers, shunts.
Why SiC Wafers Have C-Face and Si-Face
SiC overview: composition, bonding, polytypes and how C-face vs Si-face affect properties, epitaxy and device fabrication.
BJT Structure and Operating Principles
Technical overview of bipolar junction transistors (BJT): structure, NPN/PNP configuration, current relationships, operating states, and implications for amplification and switching.
Inductor Overheating: Troubleshooting Steps
Switch-mode regulator troubleshooting: inductor overheating and unstable SW traced to inappropriate output capacitor ESR; replacing with ceramic/tantalum restored loop stability.
Why the Inductor Is the Hard Part in Buck Converters
Analysis of key components in a buck converter, focusing on why the inductor selection and inductance calculation pose the primary design challenge.