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Metal Oxide Varistor (MOV) Aging and Protection Options
Technical overview of MOV aging mechanisms and protection strategies: parallel and series use with ceramic gas discharge tube (GDT) for improved surge protection and longevity.
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.
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.
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.
Why Paralleling Schottky Diodes Is Not Recommended
Overview of Schottky diode characteristics and usage notes, including forward voltage, reverse leakage behavior, and why paralleling identical diodes risks unequal current sharing.
Overview of the SiC Power Device Industry
SiC power devices for EVs: market trends, tech advances, module growth and cost drivers shaping EV powertrain adoption.
Comparison of SiC MOSFET, SJ-MOSFET and IGBT Performance
Technical comparison of SiC MOSFETs and Si SJ-MOSFETs covering material properties, static characteristics, RDS(ON) behavior, thermal and switching trade-offs.
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.
4 Types of MOSFET Gate Drive Circuits
Overview of MOSFET drive topologies: power IC direct, push-pull, accelerated turn-off and isolated transformer drives, with gate drive considerations and component guidance.
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.
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.
Understanding Common MOSFET Datasheet Parameters
Decode MOSFET datasheets: learn which parameters matter (UIS, SOA, currents, switching) and avoid misleading supplier comparisons.
IGBT Switching Process and Driver Design Factors
Technical analysis of IGBT switching with diode?clamped inductive load: interval-by-interval turn-on/turn-off waveforms, diode recovery, tail current, and driver requirements.
Working Principle of Diode Protection Circuits
Learn the working principle of diode protection circuits and how they safeguard against reverse voltage and current in electronics.
MOSFET vs IGBT: Key Differences
Comparison of MOSFET and IGBT power switches: structural differences, on-resistance, switching frequency limits, body diode behavior, and typical application use cases.
Common Level Shifting Techniques
Compare diode, BJT, MOSFET and dedicated IC level shifters for voltage translation: pros, cons, and best use cases for I2C, UART, GPIO.
Main Growth Techniques for SiC Crystals
Technical overview of SiC crystal growth methods—PVT, high?temperature solution growth, and HTCVD—detailing process steps, benefits, and limitations.
SiC Power Device Interconnect Techniques
Review of SiC power device interconnects, covering planar, 3-D and hybrid techniques, impacts on parasitic inductance and thermal management, and key material/process challenges.
Negative Feedback in Op Amp Circuits Explained
Practical op amp basics: ideal model, inputs/outputs, negative feedback, virtual short/open, and simple circuit analysis.
PMOS Reverse-Protection Circuit Design
Explore PMOS reverse-protection circuits: operation, body-diode orientation, zener VGS protection, drawbacks: standby current, backfeed and cost.