H20 Half-Bridge Dual-Choke Series
H20 (230W–350W)Reliable 230W–350W entry desktop platform featuring half-bridge topology with dual magnetic choke rings and full-range 90–264V AC input capability for global commercial deployments.
Product Specifications
Full breakdown (12 specs) ↓Platform overview
Designed around the brief.
Built to rigorous industrial standards with verified thermal dynamics, precision topology control, and high-efficiency power delivery engineered for heavy compute demands.
≥90%
80 PLUS Gold certified
≤50 µs
Fast recovery response
9-Fold
Hardware safety suite
>100k h
MTBF industrial rating
Custom wattage bins (550W–1050W), bespoke cable harness lengths, custom fan curves, and private label chassis grilles available for enterprise orders.
Inquire for custom platform specsDual magnetic choke ring output filtering enhancing line filtering and ripple damping
Configuration and availability require confirmation for the final product program.
Universal 90–264V wide AC input allowing cold startup in voltage-depressed regions
Configuration and availability require confirmation for the final product program.
Active PFC with high-temperature SendustCore choke delivering power factor >0.98
Configuration and availability require confirmation for the final product program.
Smart fan temperature control curve balancing cooling airflow and acoustic comfort
Configuration and availability require confirmation for the final product program.
Full 9-fold circuit protection suite safeguarding host hardware against electrical anomalies
Configuration and availability require confirmation for the final product program.
Long output cables supporting modern bottom-mounted chassis with rear cable management
Configuration and availability require confirmation for the final product program.
Certified compatibility with latest Intel Core and AMD Ryzen desktop platforms
Configuration and availability require confirmation for the final product program.
Low Y-capacitor safety design eliminating touch current tingling on metal enclosures
Configuration and availability require confirmation for the final product program.
Architecture & Hardware Showcase
Precision engineering, inside and out.
Direct view into component selection, structural PCB layout, and thermal topology.

Chassis & Enclosure
Durable matte black / industrial enclosure designed for optimal ventilation and component protection.

Internal Architecture & Layout 1
Internal component layout showcasing filtration stage, transformer section, and precision manufacturing.

Internal Architecture & Layout 2
Internal component layout showcasing filtration stage, transformer section, and precision manufacturing.

Internal Architecture & Layout 3
Internal component layout showcasing filtration stage, transformer section, and precision manufacturing.
Structured data
Specifications
The H20 platform provides reliable, cost-effective power delivery for entry desktop systems and commercial computers. Utilizing dual magnetic choke rings on its output filtering stage, it delivers improved rail separation and ripple suppression across global 90–264V grid conditions.
H20 Half-Bridge Dual-Choke Series Engineering Datasheet
PDF · Mechanical dimensions & pinouts
Manufacturing & Test Standards
- Chroma 8000 automated test validation
- 100% Hi-Pot & thermal burn-in tested
- Intel ATX 3.1 & PCIe 5.1 native certification
- Taiwan / Japanese 105°C primary capacitor tier
Need custom voltage tolerances, custom cable harnesses or compliance records? Contact our power engineering team →
- Rated output
- 230 W – 350 W
- Efficiency tier
- Energy-saving entry desktop efficiency (approx. 78%–80%)
- Topology
- Half-Bridge with Dual Magnetic Choke Rings
- Standard
- Intel ATX 12V compliant
- AC input range
- 90 – 264 V (Full Range universal grid support)
- Dynamic response
- ≤50 µs transient recovery time
- Power factor
- >0.98 (APFC stable design with SendustCore)
- Ripple & noise
- +5V/+3.3V <50mV, +12V <120mV
- Cooling fan
- 120 mm smart thermal fan (min 1200 RPM)
- Modularity
- Direct-wire with long cables for rear routing
- Protection suite
- Brown-out, OVP, UVP, OCP, OPP, SCP, ESD, Surge, EMC
- MTBF
- >100,000 hours
PC Power Supply Engineering
PC Power Supply OEM/ODM & Technical Support
Direct technical & commercial access for desktop, gaming rig, and workstation power supplies. Discuss wattage sizing (550W–1050W), ATX 3.1 & 12V-2x6 GPU delivery, modular cabling, and PC chassis compatibility with our engineering team.
Direct FAE evaluation for GPU transient spikes (200% excursion), 12V-2x6 cable clearance, and motherboard 24-pin compatibility within 24 hours.
Golden engineering units shipped in 3–5 days to validate PC chassis mounting, FDB fan acoustic profiles, and GPU power delivery under real loads.
Custom embossed/braided modular cables, customized casing finishes (Black/White), branded fan grilles, and bilateral NDA protection.
Complete ATE automated test reports (ripple <30mV, voltage regulation <±1.5%), cross-load efficiency curves, thermal imaging, and 3D CAD STEP files.
PC Power Supply Project Roadmap
- 1Platform & Wattage Selection: Choose standard wattage (550W–1050W), modular format (Full/Semi/Direct), or custom embossed cable lengths.
- 2Chassis & GPU Compatibility Review (<24h): Our FAEs verify 140mm chassis depth fitment, 12V-2x6 thermal safety, and thermal airflow curves.
- 3EVT Prototype & Bench Test: Receive working samples for system smoke test & motherboard validation, followed by mass production.
For urgent PC system integration, gaming rig bids, or high-volume PSU orders, contact our power supply engineering team via larry@encon.ltd for immediate assistance.
Downloads
Formal product documents are not yet available.
Ask ENCON for the latest approved datasheet or certification document.