Dual-Ring Half-Bridge
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100% Chroma ATE Tested

H20 Half-Bridge Dual-Choke Series

H20 (230W–350W)
Dual-Ring Half-Bridge · 90–264V Full RangeIntel ATX 3.1 & PCIe 5.1SendustCore™ Active PFCOEM / ODM Available

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) ↓
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

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.

Efficiency

≥90%

80 PLUS Gold certified

Transient

≤50 µs

Fast recovery response

Protection

9-Fold

Hardware safety suite

Reliability

>100k h

MTBF industrial rating

OEM / ODMTailored Program Support

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 specs

Dual 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.

H20 Half-Bridge Dual-Choke Series Primary View
Engineering view 01

Chassis & Enclosure

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

H20 Half-Bridge Dual-Choke Series Detail View 1
Engineering view 02

Internal Architecture & Layout 1

Internal component layout showcasing filtration stage, transformer section, and precision manufacturing.

H20 Half-Bridge Dual-Choke Series Detail View 2
Engineering view 03

Internal Architecture & Layout 2

Internal component layout showcasing filtration stage, transformer section, and precision manufacturing.

H20 Half-Bridge Dual-Choke Series Detail View 3
Engineering view 04

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.

ATX 3.1 & 12V-2x6 FAE SLA

Direct FAE evaluation for GPU transient spikes (200% excursion), 12V-2x6 cable clearance, and motherboard 24-pin compatibility within 24 hours.

PC Bench-Test Samples

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 Cables & PSU Housing

Custom embossed/braided modular cables, customized casing finishes (Black/White), branded fan grilles, and bilateral NDA protection.

Chroma 8000 & 80 PLUS Logs

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

  1. 1
    Platform & Wattage Selection: Choose standard wattage (550W–1050W), modular format (Full/Semi/Direct), or custom embossed cable lengths.
  2. 2
    Chassis & GPU Compatibility Review (<24h): Our FAEs verify 140mm chassis depth fitment, 12V-2x6 thermal safety, and thermal airflow curves.
  3. 3
    EVT Prototype & Bench Test: Receive working samples for system smoke test & motherboard validation, followed by mass production.
Need urgent desktop PC or server PSU engineering support?Fast Track

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.

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Downloads

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