Blog
Deep dives into power electronics, industry trends, and application case studies.
2026-05-09
EU E-Bike Charger Certification 2026: EN 15194, EN 50604 & EN 60335-2-29 Buying Guide
Exporting e-bike chargers to the EU? CE marking is only the start — your charger must pass EN 60335-2-29 + EN 55014 (EMC), the battery pack must comply with EN 50604-1, and the whole bike must meet EN 15194. Here's how the standards stack and what OEMs trip on most.
2026-05-08
Forklift Battery Charger Selection Guide: 24V / 36V / 48V Lead-Acid vs LiFePO4 (2026)
How to size a forklift battery charger by voltage class (24V / 36V / 48V), pick the right current for opportunity charging, navigate UL 2202 / UL 2849 / OSHA workplace requirements, and choose between flooded lead-acid EQ profiles and LiFePO4 CC/CV — with a Sanyi product map for warehouse and material-handling fleets.
2026-05-07
USB-C PD 3.1 EPR 240W Charger Buying Guide: Powering 2026 High-Performance Laptops
PD 3.1 EPR (Extended Power Range) pushes USB-C charging from 100W to 240W and finally puts gaming laptops, mobile workstations, and 16-inch MacBook Pros on a single cable. Here's what EPR actually does, how to spec a real 240W charger, and the common 'fake EPR' traps to avoid for OEM and end-user purchasing.
2026-05-06
LiFePO4 vs Lead Acid Battery Charger: Complete Selection Guide (2026)
Compare LiFePO4 and lead acid battery chargers — voltage profiles, 3-stage vs CC/CV algorithms, BMS handshake, and how to pick the right charger for solar, RV, marine and forklift applications.
2026-05-05
Industrial Power Supply Inrush Current Limiting: NTC vs Active Limiter (Procurement Guide)
Why does your circuit breaker trip when you power on three PSUs at once? Inrush current can hit 30-50× rated current for milliseconds. Learn how NTC and active inrush limiters work and how to spec PSUs for parallel installations.
2026-05-04
Power Supply Derating Curve: How Temperature and Altitude Cut Your Real Output (Industrial Buyer's Guide)
A 500W PSU rated at 25°C delivers far less at 60°C or 3000m altitude. Learn how to read derating curves, why 'rated power' lies, and how to spec for real-world conditions.
2026-05-03
Class 2 vs Class II Power Supply: UL Safety Standards Decoded for OEM Buyers
Class 2 and Class II power supplies sound identical but mean entirely different things in UL/NEC safety code. Learn the difference and how to spec the right one for LED, security, and signage projects.
2026-05-02
24V vs 48V Industrial DC Power Supply: Which Voltage Should You Choose? (2026 Buying Guide)
A practical 24V vs 48V comparison for industrial DC power supplies — covering voltage drop math, cable cost, PoE / telecom use cases, motor and solenoid bank loads, and which Sanyi switching PSU fits each application.
2026-05-01
Railway DC-DC Converter EN 50155 Selection Guide for Rolling Stock and On-Board Systems
A practical EN 50155 selection guide for railway-grade DC-DC converters powering on-board electronic equipment — covering nominal battery rails, supply interruption classes, temperature class T1–TX, EN 50121-3-2 EMC, EN 61373 vibration, EN 45545-2 fire protection, isolation, and a procurement-ready checklist for rolling stock OEMs and tier-1 integrators.
2026-04-30
Medical-Grade Power Supply IEC 60601 Selection Guide for Medical Device OEMs
A practical IEC 60601-1 / 60601-1-2 selection guide for medical-grade AC-DC power supplies — covering MOOP vs MOPP, 1×MOPP vs 2×MOPP, BF vs CF applied parts, leakage current limits, EMC class, isolation voltage, and a power-tier product map for OEM medical device platforms.
2026-04-29
AGV Charging Station Power Supply Selection Guide for Smart Warehouse Automation
A practical AGV charging station power supply selection guide for smart warehouse and logistics integrators — covering opportunity vs fast vs overnight charging modes, 3kW/6kW/15kW power tiers, LiFePO4 CC/CV profiles, CAN bus integration, MTBF targets, and a power-class product map for AGV battery charger industrial deployments.
2026-04-28
Industrial DIN Rail Power Supply Selection Guide for PLC and Automation Engineers
A practical sizing and selection guide for 24V/48V industrial DIN rail power supplies in PLC and automation cabinets — covering load budgets, inrush handling, MTBF/efficiency targets, surge tolerance, and a power-tier product map for 30W to 480W deployments.
2026-04-27
Slim LED Display Power Supply Selection Guide: Ultra-Thin PSUs for Digital Signage, Light Boxes, and Architectural Lighting
How to choose the right slim power supply for LED light boxes, ultra-thin signage, advertising displays, and shallow architectural fixtures. Covers thickness limits, wattage sizing, ventilation, IP rating, and the trade-offs that determine whether a 30 mm PSU will outlive the cabinet it lives in.
2026-04-26
UPS Runtime Calculator: How to Size Battery Backup Time for Servers, Networking, and Critical Loads
A practical guide to calculating UPS battery backup time for IT racks, network closets, security rooms, and critical equipment. Covers the runtime math, load profile assumptions, derating factors, and the sizing mistakes that leave engineers short on minutes when the lights actually go out.
2026-04-24
EPS vs UPS for Emergency Lighting: Choosing the Right Backup Power for Fire-Safety and Life-Safety Buildings
A facility-focused comparison of EPS (Emergency Power Supply) and UPS (Uninterruptible Power Supply) for emergency lighting, fire-safety loads, and critical IT — covering code requirements, runtime, transfer time, sizing, and how to avoid specifying the wrong system.
2026-04-23
Access Control Power Supply Selection Guide: How to Size 12V/24V DC for Mag Locks, Strikes, and Door Controllers
An installer-focused sizing guide for access control power supplies — covering mag locks, electric strikes, door controllers, fail-safe vs fail-secure topology, battery backup runtime, cable voltage drop, and product selection for 12V and 24V DC systems.
2026-04-21
CCTV Power Supply Sizing Guide: How to Calculate 12V/24V DC Requirements for Security Camera Systems
A practical, installer-focused sizing guide for CCTV power supplies — covering camera wattage budgets, voltage drop over cable runs, centralized vs distributed topology, battery backup, and product selection for analog, IP, and PTZ systems.
2026-04-21
Silicon Carbide PoE Switch Power Supply: Solving the Reliability vs Cost Dilemma for 48W–150W Built-In and External Modules
China's PoE switch market is racing to the bottom on BOM cost, and the internal power module is where quality is getting silently cut. Here's why silicon carbide (SiC) PoE power supplies are changing the reliability-vs-cost equation for 48W–150W built-in and external modules, and how to spec one for security, building, and industrial applications.
2026-04-20
Data Center UPS vs Industrial UPS: Topology, Sizing & Selection Guide for Mission-Critical Power
Server rooms and factory floors both need battery backup, but the UPS that keeps a rack of switches online will fail on a plant floor — and vice versa. A practical comparison of data center UPS vs industrial UPS: online double-conversion vs line-frequency topologies, three-phase input handling, isolation transformers, and the sizing rules that decide which one belongs where.
2026-04-19
IP65 vs IP67 vs IP68: Waterproof Power Supply Selection Guide for Outdoor LED, Signage & Industrial Installations
Pick the wrong IP-rated power supply and you'll be replacing drivers after the first storm. A practical comparison of IP65, IP67 and IP68 waterproof power supplies — what the ratings actually mean, which applications need which grade, and the hidden specs that matter more than the IP number itself.
2026-04-18
Open Frame vs Enclosed Power Supply: The Complete Selection Guide
Open frame or enclosed switching power supply — which one fits your application? A practical side-by-side comparison covering cost, cooling, safety, EMI, certifications, and real-world selection scenarios for OEMs and system integrators.
2026-04-16
How to Choose a UPS for Small Business & Home Office: Sizing, Runtime & Buyer's Guide 2026
Complete guide to choosing the right UPS (uninterruptible power supply) for small businesses and home offices. Learn how to calculate VA/watt requirements, compare standby vs line-interactive vs online UPS topologies, estimate runtime, and avoid costly mistakes.
2026-04-15
Sanyi Smart Charger: WiFi Cloud Monitoring + App Control — Charging at Your Fingertips
Sanyi Technology smart battery charger with WiFi remote monitoring and app control. Supports lithium CC-CV and lead-acid 4-stage intelligent charging, 6-layer protection, temperature compensation, kWh energy metering. Ideal for EV charging stations, energy storage, and industrial battery maintenance.
2026-04-07
LED Strip Power Supply Guide: Wattage Calculation & Selection Best Practices
Complete LED strip power supply sizing guide: chip wattage chart, 12V/24V/48V voltage drop data, the 80% rule, IP ratings, and a 3-step calculation method with real examples.
2026-03-17
NVIDIA Edge AI Power Supply Deep Dive: From Jetson 15W to IGX Thor 300W Across Five Deployment Scenarios
Jetson Thor draws 40-130W at 9-28V input; IGX Thor with dGPU exceeds 300W. A deep dive into industrial power supply selection for smart manufacturing, warehouse AMR, smart traffic, medical imaging, and AI surveillance edge deployments.
2026-03-12
WiFi 7 Is Here — Can Your PoE Switch Handle It? An Upgrade Planning Guide
WiFi 7 APs draw up to 2x more power, pushing past 802.3at limits. Real-world power data from 9 major AP vendors, a PoE standard compatibility matrix, and budget calculations for 3 upgrade scenarios to help you decide when to upgrade your switch power supply.
2026-03-10
PoE Power Budget Calculator: Switch PSU Sizing Guide
IP cameras going offline? WiFi APs rebooting? Calculate your PoE power budget in 4 steps with device wattage tables, cable loss, and the 80% headroom rule.
2026-03-06
California SB 1271 & UL 2849: 2026 E-Bike Charger Certification Requirements Explained
California SB 1271 took effect January 1, 2026, requiring UL 2849 certification for all e-bike chargers and batteries. NYC saw 318 battery fires in 2021-2022. Here's what manufacturers need to know.
2026-03-06
NVIDIA 800V HVDC Deep Dive: From 54V Racks to Megawatt AI Factories
NVIDIA's 800V HVDC architecture reduces data center power conversion from 4 stages to 2, boosting efficiency from 83% to 92%+ and cutting copper usage by 45%. Deep dive into the 64:1 LLC topology, GaN/SiC devices, Kyber rack design, and the 29-member supplier alliance.
2026-03-04
NOCO vs CTEK vs Victron vs Battery Tender: Which Smart Charger Is Best for LiFePO4?
Comparing NOCO, CTEK, Victron, and Battery Tender LiFePO4 smart chargers across charging profiles, waterproofing, Bluetooth, and warranty. LFP hit 44% market share in 2025.
2026-03-02
US Tariffs on Chinese Lithium Batteries Hit 82% in 2026: What Importers & OEMs Need to Know
US tariffs on Chinese lithium batteries reach ~82% in 2026 with the Section 301 rate jumping to 25%. Breakdown of rates, affected products, and strategies.