Semiconductors

How to Charge a Lithium-Ion Battery Safely and Efficiently?

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.

Voltage Reference: A Survey for Precision Engineers

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.

Electric Actuator: Comprehensive Engineering Guide

This article details electric actuators — explaining theory, construction, motor topologies, transmission trade offs, feedback architectures, selection methodology, applications, comparisons with fluid power, maintenance and standards.

FPGA Development: Architecture, Tools, and Design Flow

Learn the architecture, toolchains, and design methodologies behind professional FPGA development — applied to DSP, embedded systems, and hardware AI.

Nexperia Wide Bandgap Selection Guide

Nexperia links device-level advantages to application requirements, helping designers choose the best Wide bandgap (WBG) solution for their design.

Motor Control Design: End-to-End Methodology

This article presents an end-to-end motor control design methodology covering mechanical sizing, power electronics, sensor selection, real-time control algorithms, EMC, and functional safety for engineers building motor drives.

FPGA Chip: Architecture, Fabrication, and Families

Field-programmable gate arrays are reconfigurable integrated circuits engineered for parallel hardware acceleration. Learn how FPGA architecture works, how they're fabricated, and which FPGA chip families lead the industry.

Active High Pass Filter: Theory, Design, and Applications

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 Filter Design and Implementation

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.

Active Bandpass Filter Design Guide

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.

Motor Speed Control: Methods Across Motor Types

This article is a practical guide to motor speed control, covering PWM duty control, VFDs, scalar control, vector control, and field-oriented control for DC, BLDC, induction, PMSM, stepper, and servo motor systems.

Terahertz, Bringing the "Final Frontier" to the Field: ROHM's Resonant Tunneling Diode Enables Compact, Low-Power Sensing

ROHM's RTD enables the generation and detection of terahertz frequencies in a highly compact form factor at low power. It supports non-destructive, non-ionizing imaging and spectroscopy applications like security screening, medical sensing, and high-speed wireless communication.

ROHM's Advanced Packaging for Highly Efficient Power Electronics Systems

Rising power demands from emerging industries are pushing manufacturers to maximize the performance and efficiency of their power supplies. Using advanced power semiconductor packaging technologies is becoming essential to meet the next-gen targets.

A Comprehensive Guide to FPGA Development Boards

Choosing, using, and advancing with your first FPGA development board. This guide demystifies FPGA development boards for students, hobbyists, and engineers. Learn how to select the right starter kit, set up the toolchain, complete your first project, and troubleshoot hardware and software issues.

BLDC Motor Controller: Comprehensive Design Guide for Engineers

This article details BLDC motor controllers, covering system roles, architectures, commutation methods, sensing techniques, power stages, protection, IC selection, application requirements and safety standards.