ALLPCB
Push-Pull vs Open-Drain Output Modes
Compare microcontroller push-pull vs open-drain GPIO: operation, pros/cons, use cases and pull-up tradeoffs.
Half-Wave and Full-Wave Rectifiers: Key Differences
Explore key differences between half-wave and full-wave rectifiers, their efficiency, and applications in AC to DC conversion.
What Is Diode Clamping? Applications of Clamping Protection
Overview of diode clamp and clamping circuit operation, positive/negative and bias clamps, RC time-constant design, component selection, and protection applications.
China SiC Substrate Prices Fall in 2024; 800V Adoption Nears
Analysis of China SiC substrate price decline in 2024: domestic prices plunged vs global quotes, driven by capacity expansion, competition and potential price war.
Understanding AGND and DGND Grounding Practices
Practical grounding and decoupling guide for mixed-signal systems covering ground plane, AGND/DGND strategies, PCB layout, and ADC/DAC clock and return-path issues.
Derating Guidelines for Power Supply Components
Practical derating guidelines for power-supply components: rules, accelerated-test models, and component-specific limits (ICs, capacitors, MOSFETs, resistors) for reliability.
Why Add a 100Ω Gate Resistor to MOSFETs
Why use a MOSFET gate resistor? Learn how Rg (often ~100Ω) damps gate/drain ringing, balances switching speed and losses, and how to choose Rg.
Capacitive Dropper: Theory and Practical Circuits
Capacitive dropper guide: principles, practical circuits, component choices, pros, limits and safety for low-power mains supplies.
Overview of BJT, MOS, CMOS and DMOS Semiconductor Processes
Overview of transistor/process technologies—BJT, MOS, CMOS, DMOS, BiCMOS, BCD: differences, benefits and applications from logic to power.
Key Considerations for IGBT Gate Driving
IGBT structure, gate-drive behavior, turn-on/off currents, dv/dt limits, Miller effects, gate resistance and PCB layout tips for high-power switching
Understanding MOSFET Parameters
MOSFET technical summary of electrical and thermal specs: key ratings (VDSS, VGS, ID), thermal resistance RθJA and Tj calculation, capacitances, gate charge and switching timings.
Crystal Oscillator Operation and Load Capacitor Selection
Practical engineering guide to Pierce oscillator design: crystal equivalent model, load capacitance tuning, startup/gain margin checks, drive-level and PCB layout recommendations.
MOSFET Gate Driver Circuit Design
Overview of MOSFET gate drive principles, gate-to-source capacitance and gate charge, threshold behavior, and gate charge calculation for driver circuit design.
Types of Buffer Amplifiers
Learn buffer amplifiers: voltage & current buffers, impedance matching, unity-gain, signal isolation, and applications in audio, sensors, filters.
Two Typical Phenomena of SiC MOSFET Short-Circuit Failure
Explore SiC MOSFET short-circuit failure phenomena, reliability challenges, and mechanisms in this detailed electronics article.
MOSFET Gate Circuits and PNP Turn-off Driver
Technical overview of MOSFET gate functions and drive implementations, including direct drive, external drivers, speed?up diode, PNP turn?off, floating and isolated drives.
Analog Switches: Functions and Selection Criteria
Technical overview of analog switch operation and selection, highlighting on-resistance, voltage ratings, transmission-gate topology and practical troubleshooting for signal routing.
Capacitive Reactance: Three Practical Examples
Explains capacitive reactance (XC), its frequency dependence, formula XC = 1/(2πfC), and use in RC networks and passive low?pass/high?pass filters.
Measuring MOSFET Gate Charge Using JEDEC Method
Guide to JEDEC MOSFET gate-charge testing with the 4200A-SCS: use two SMUs in Clarius to measure Qg, Qgs, Qgd and compensate offset capacitance.
Understanding MOSFET Datasheet Parameters
Technical guide to reading a MOSFET datasheet, focusing on SOA curve interpretation, practical current limits (continuous and pulse), and relevance of switching parameters.