A PEM fuel cell converts hydrogen and oxygen into electricity at around 80 degrees C, with water and heat as the only products. This guide covers electrochemistry, layer materials, efficiency limits, and cost and durability to help you understand the practical applications of this technology.
Technical Guides
Latest Posts
This article explains how load cells work, the main types, what accuracy specs and OIML/NTEP classes mean, and best practices for sizing, wiring, and installation.
Explore battery degradation in lithium-ion cells, from SEI growth and lithium plating to SOH, fleet data, and life-extension strategies.
This article explains what is a fuel cell by reviewing its components, classifications, performance, limitations, and real world uses.
An instrumentation amplifier is a precision differential amplifier designed to amplify small voltage differences. This guide explains the three-op-amp architecture, and how to choose between INA128, AD620, LT1167, and a standard difference amplifier for sensor front-ends.
A non-inverting amplifier is an op-amp configuration that delivers in-phase voltage gain with high input impedance. This article explains its theory, schematic symbols, gain calculation, bandwidth limits, noise, stability trade-offs, and real-world design practices.
This article explores the LiFePO4 voltage chart, covering SOC and voltage for 3.2V, 12V, 24V & 48V systems, charging and BMS cutoffs.
Understanding cell chemistry, safety, energy density, and manufacturing realism.
This article explains lithium-ion battery fires, thermal runaway risks, prevention steps, safe handling, storage, and recycling guidance.
This article explains lithium-ion solar battery selection, sizing, BMS, safety, and integration for reliable off-grid, hybrid & PV systems.
Engineering tradeoffs for cost, safety, cycle life, and system design.
Engineering principles, BTMS architectures, and design tradeoffs.
Understanding the key differences between the two high-in-demand battery types. This article focuses on Energy density, lifespan, safety, and cost trade-offs for the technical selection of Li-Ion and LiFePO4 batteries.
This article explains what is LiFePO4, how lithium iron phosphate batteries work, their safety benefits, cycle life, BMS requirements, applications, and key differences from lead-acid and other lithium-ion chemistries.
This article explains how to charge a Lithium-Ion battery safely and efficiently by covering charge profiles, voltage thresholds, current ratings, temperature derating, fast-charging limits, storage practices, and common design mistakes.
A voltage reference is a precision circuit that delivers a stable output voltage independent of temperature, power supply, and load variations. This article covers key reference technologies, specifications, selection criteria, PCB design, and applications in ADCs, DACs, and calibration systems.
Active high-pass filters remove unwanted low-frequency signals while preserving useful higher frequencies. This article covers first- and second-order filter design, Sallen-Key and multiple-feedback topologies, and practical applications in audio electronics, instrumentation, and signal processing.
Active low-pass filters use op-amps, resistors, and capacitors to pass low-frequency signals while attenuating higher frequencies. This article covers first-order and second-order filter design, Sallen-Key and MFB topologies, cutoff frequency, Q factor, and applications.
A bandpass filter is a circuit that allows a selected range of frequencies to pass while reducing low and high frequencies. This article covers the design of active bandpass filters using op-amps, resistors, and capacitors, including cutoff and center frequencies,, Sallen-Key and MFB topologies.
Understanding gate-driver fundamentals, architectures, drive techniques for SiC MOSFETs and GaN HEMTs, protection features, key specifications, and selection guidance for modern power electronics.
This technical guide provides a comparative analysis of step-up and step-down transformers covering turns ratio, grid voltage levels, design parameters, autotransformers, buck-boost configurations, efficiency standards and selection criteria.
Understanding how voltage regulators maintain constant voltage, comparing linear, LDO, and switching types, and providing engineering guidelines for selecting and integrating regulators into complex systems.
An operational amplifier (op-amp) is a high-gain differential amplifier used in analog circuitry to process and condition signals. This article examines op-amp theory, ideal and real behavior, key specifications, core circuits, applications, and practical design considerations.
Three phase circuits deliver balanced power for industrial and high demand applications, but mismatched wires can cause equipment damage or safety hazards. These 3 phase wire color code schemes ensure correct installation, proper phase rotation, and compliance with electrical codes.
Modern electronics and renewable energy systems depend on DC to AC inverters that convert a DC source into a clean sinusoidal AC output. This technical article explains the theory behind inverter circuits, their types, architectures, and practical design tips.
