AC-DC Power Converters & Solutions

Custom, Standards-Driven AC-DC Power Systems for Mission-Critical Applications

For over five decades, Horizon PSS has engineered AC-DC power conversion systems where off-the-shelf solutions fall short. We deliver custom and semi-custom AC-DC converters to OEMs in military, medical, industrial, and laboratory markets—programs where compliance, reliability, and lifecycle continuity determine success or failure.

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Benefits of choosing horizon for AC-DC power supplies

Custom & Semi-Custom AC-DC Development
Most AC-DC power challenges don't fit standard specifications. We structure customization around three engagement models:

Modified Standard Platforms: Start with field-proven topology. Modify output voltage, connectors, packaging, or qualification level. Timeline: 8-16 weeks. Best for proven reliability with targeted changes.

Semi-Custom Design: Custom mechanical form factor with proven power stages. Application-specific EMI filtering, protection, and multi-output configuration. Timeline: 12-20 weeks. Best for unique mechanical constraints with standard electrical performance.

Full Custom Development: Ground-up architecture for specifications outside catalog boundaries. Proprietary topologies, specialized qualification, long-term production commitment. Timeline: 20-36 weeks. Best for unique technical requirements and multi-year production horizons.
Standards Compliance & Qualification Ownership
We don't just meet standards we own the qualification pathway from prototype through production.

Military Standards: MIL-STD-704, MIL-STD-1399, MIL-STD-461, MIL-STD-810, MIL-DTL-901, DO-160

Medical Standards: IEC 60601-1, IEC 60601-1-2, 2xMOPP/MOPP isolation, ISO 13485, FDA 21 CFR Part 820

Industrial Standards: EN 55011/55032, EN 61000-4 series, IEC 62368-1, UL/CSA 61010-1

Qualification ownership includes: Pre-compliance testing, standards interpretation, test plan development, qualification documentation, and configuration management through production.
RFQ-Ready Engineering & NRE Transparency
We structure NRE proposals with fixed pricing, milestone-based deliverables, and acceptance criteria defined upfront.

NRE includes: Design and circuit development, prototype fabrication and validation, formal qualification testing, comprehensive documentation (schematics, BOMs, test reports, user manuals), production tooling and first article inspection.

Typical RFQ response time: 48-72 hours for catalog products, 5-7 business days for custom scoping with preliminary NRE estimate.
Lifecycle Responsibility & Risk Ownership
The hidden cost of AC-DC power isn't the unit price it's what happens when components go end-of-life or undocumented changes invalidate system qualification.

Configuration Control: Formal ECO process, proactive PCNs, revision traceability from schematic to production lot.

Obsolescence Management: Component lifecycle monitoring, proactive redesign proposals, last-time-buy coordination, alternate source qualification.

Production Continuity: 10-15 year production commitments, qualification maintenance through standards revisions, original design engineer access for troubleshooting.

AC-DC power Convertes:
Mission-Specific Engineering

Military AC-DC Power Supplies
MIL-STD qualified AC-DC converters for defense and aerospace programs requiring environmental qualification and electromagnetic compatibility in extreme conditions.Our military AC-DC converters support input configurations from 115VAC 400Hz aircraft power to wide-range 85-264VAC and three-phase 320-575VAC, with ±20% input tolerance for generator instability. Environmental performance spans -55°C to +105°C operating temperature, altitude to 70,000 feet, and shock and vibration per MIL-STD-810 Methods 514.8/516.8. EMI compliance covers conducted emissions (CE102), radiated emissions (RE102), and conducted and radiated susceptibility (CS101/CS114/CS116, RS103), with integrated filtering for proximity to sensitive RF systems. Thermal management options include conduction-cooled baseplates for sealed avionics enclosures and natural convection or forced-air for ground systems.Airborne applications UAV power systems, avionics bays, radar platforms typically run 115VAC 400Hz input to 28VDC output at 600W-2000W, conduction-cooled. Naval programs require MIL-STD-1399 compliance, corrosion-resistant packaging, and power factor correction for shipboard harmonic limits. Ground systems (C4ISR, tactical communications, vehicle-mounted sensors) demand ruggedized chassis and wide environmental range.Key Products: TITAN 3G/4G/6G Series (1200W-4200W), HRD Series harsh environment (800W-4200W).For non-Israeli defense programs, visit Titan Power Systems for ITAR-compliant solutions.
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Medical AC-DC Power Supplies
IEC 60601-1 compliant AC-DC converters engineered for patient safety, with isolation architectures and leakage current performance that meet the most stringent regulatory requirements.2xMOPP isolation provides dual-fault protection through reinforced insulation and component spacing, with earth leakage <300µA and patient leakage <100µA for BF-type applied parts (<10µA for CF-type cardiac applications). IEC 60601-1-2 4th Edition EMC compliance ensures immunity to ESD, radiated RF, and electrical fast transients while preventing emissions that could interfere with adjacent patient monitoring equipment. Active PFC maintains power factor >0.95 with THD <5%.Fanless configurations support noise-sensitive clinical areas; forced-air models with hospital-grade filtered intake serve high-power imaging platforms.Diagnostic imaging (CT, MRI, ultrasound) requires 1000W-3000W multi-output converters with low-noise outputs for detector circuits. Patient monitoring and life support equipment (ICU monitors, ventilators, infusion pumps) runs on 200W-650W open-frame or adapter designs with ultra-low ripple (<50mVp-p). Surgical equipment including electrosurgical units and laser systems demands stable output under high peak-to-average power loading up to 2500W.Key Products: MDP Series (200W-1200W), LFM Series fanless (200W-550W), MINT Series (110W-500W), MEG/MEB Series configurable (500W-2500W).Documentation support for regulatory submissions includes safety and EMC test reports, risk analysis, component traceability, and configuration management for FDA 510(k) and CE marking.
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Industrial AC-DC Power Systems
High-efficiency, rugged AC-DC converters engineered for continuous operation in electrically noisy, thermally demanding factory environments where downtime costs thousands per hour.Active PFC front-ends reduce total harmonic distortion to <5% and maintain power factor >0.95, meeting EN 61000-3-2 Class A limits and preventing nuisance circuit breaker trips in high-power installations. Transient response recovers to ±1% regulation within 500µs of a 50% load step—critical for stepper motors, servo drives, and pulsed loads with >20ms hold-up at full load. Overall efficiency reaches 88-94% depending on output voltage and load point. EMI compliance meets EN 55011/55032 Class A or Class B with immunity to ESD (±8kV), fast transients (±4kV), and surge (±2kV) per the EN 61000-4 series.Operating temperature spans -25°C to +70°C with conformal coating and IP-rated enclosures available for humidity, dust, and chemical exposure.3D printing systems need dual-output configurations with thermal stability <±0.5% (200W-1500W). Robotics and automation require low-noise outputs for encoder systems with DIN-rail mounting for panel integration. CNC machinery demands MTBF >100,000 hours with overload tolerance for spindle starting transients (500W-3000W, three-phase). Laser systems require stable regulation <±1% with custom output voltages from 5V to 400V (500W-4000W).Key Products: IMA Series enclosed (400W-1000W), DIN-Rail (60W-960W), Force-GT/DRF (120W-960W), AQF/ARF open-frame (80W-1000W).
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Laboratory AC-DC Power Supplies
Precision programmable AC-DC power for R&D, component characterization, and production test where measurement accuracy and output stability determine data reliability.Line and load regulation reach ≤±0.01%, with ripple and noise below 5mVp-p (20MHz bandwidth) and <1mVRMS for ADC testing and precision analog circuits. Temperature coefficient holds below 50ppm/°C with long-term stability <0.1% over an 8-hour cycle. CV and CC modes switch seamlessly with automatic crossover; 4-wire Kelvin remote sensing compensates voltage drop at the load. Control interfaces include USB, RS-232, RS-485, LAN, and optional GPIB, all SCPI-compatible for integration with LabVIEW, Python, and MATLAB test environments.Semiconductor characterization and burn-in testing uses rack-mount units (600W-3000W) in parallel for current scaling. Production test and ATE integration requires fast programming (<10ms setpoint change), digital I/O, and list-mode sequencing. Research and university labs rely on benchtop models (30W-600W) with user-friendly protection. Electrochemistry and battery testing leverages four-quadrant operation with extended voltage ranges to 1000V and current accuracy <0.1% + 10mA.Key Products: Benchtop programmable (150W-1200W), rack-mount programmable (600W-5kW), high-voltage (1kW-5kW, 0-1500V).
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