কোম্পানির ব্লগ সম্পর্কে Supply Delta Power Module:DCDC Converter,ACDC Converter,POL Module

Supply Delta Power Module:DCDC Converter,ACDC Converter,POL Module

Delta’s modular power supply products cover three major categories: AC-DC converters, isolated and non-isolated DC-DC converters, and POL (Point-of-Load) power modules. They serve as core components in power supply chains for industrial automation, AI servers, telecommunications base stations, medical equipment, rail transport and humanoid robots. The products feature high conversion efficiency, wide operating temperature ranges, comprehensive protection mechanisms and global safety certifications, meeting the design requirements for complete power tree configurations—from front-end mains conversion and intermediate bus isolation conversion to chip-level point-of-load voltage regulation. Shenzhen Mingjiada Electronics Co., Ltd. has long supplied Delta’s full range of power modules, offering integrated services including BOM fulfilment, sample requests, bulk supply and stock buy-back.

I. Detailed Product Specifications

1. AC-DC Converters (On-board PCB Modules – AA Series)

Delta’s AA Series AC-DC on-board modules convert AC mains power to DC bus voltage and are widely used in industrial control and IoT devices.

- Input voltage: 85–264 VAC; globally compatible wide-range AC input

- Output specifications: Single-output 3.3 V/5 V/12 V/15 V/24 V/48 V; dual-output ±12 V, ±15 V and other multi-output combinations, with power ratings ranging from 10 W to 60 W

- Conversion efficiency: 76%–84%; low-power design for light loads

- Packaging: PCB through-hole / chassis mounting; typical dimensions: AA10S: 25.4 × 50.8 × 19.5 mm; AA60S: 112 × 63.8 × 25.6 mm

- Protection functions: Input under-voltage, output over-voltage, over-current and over-temperature protection; optional fault latching or automatic recovery

- Environmental and certification: Operating temperature -40°C to +85°C; UL and IEC 62368 safety certifications; MTBF up to 700,000 hours or more

- Typical applications: Industrial control boards, test and measurement equipment, power supply for embedded systems

2. DC-DC Converters (Isolated Modules)

Delta’s isolated DC-DC modules are available as full-brick, half-brick, quarter-brick and eighth-brick on-board isolated power supplies, providing high-to-low voltage isolation and bus voltage conversion.

- Input Specifications: Wide-voltage versions available with 36–75 VDC, 200–400 VDC and 400–800 VDC high-voltage inputs

- Output: Single-channel / dual-channel isolated DC output, power range 15 W to 1,500 W

- Isolation withstand voltage: 3 kV AC reinforced insulation, meeting medical and industrial safety requirements for isolation

- Conversion efficiency: Up to 95%, supporting active current sharing and remote sense

- Protection mechanisms: Input UVLO, output OCP, OVP, OTP and hiccup protection; supports enable switch and synchronisation functions

- Operating temperature: -40°C to +105°C; hermetically sealed, vibration- and damp heat-resistant; suitable for high-reliability applications such as outdoor, automotive, LEO satellites and automated equipment

- Typical applications: Communication rack power supplies, new energy, medical equipment, rail transport, and bus power supply for humanoid robots

3. POL Point-of-Load Power Module (DOSA Standard Series: DNK/DCK)

Delta’s POL is a non-isolated step-down module that complies with the DOSA industry standard. It is used to step down the bus voltage directly to power FPGAs, processors and AI chips. It features a highly integrated design incorporating a controller, inductor and input/output capacitors, and utilises an SMT surface-mount package to save PCB space.

- Input voltage: DNK series 4.5–5.5 VDC; DCK series 6–14 VDC

- Output voltage: 0.8 V to 3.3 V adjustable (set via external resistor), maximum output current 30 A

- Conversion efficiency: Up to 95% at full load, excellent dynamic response, low output ripple

- Package: SIP surface-mount package, standard DOSA pinout, compatible for replacement, supports automated SMT placement

- Features: Remote on/off control, output overcurrent hiccup protection, thermal shutdown, voltage tracking, soft start; some models support digital timing configuration

- Thermal Design: Copper-brazed heat spreader on the rear, excellent thermal conductivity, suitable for high-density board cooling solutions

- Typical Applications: AI computing servers, data switches, FPGA boards, humanoid robot control boards, Delta industrial motion control cards

II. Procurement, Selection and Buyer’s Guide

1. Key Steps for Selection

1) Determine the power chain hierarchy: Select an AC-DC module for front-end mains input; choose an isolated DC-DC module where electrical isolation or high-voltage bus conversion is required; select a POL (Point-of-Load) module for low-voltage, high-current step-down scenarios near processors, FPGAs and other chips.

2) Verification of electrical parameters

- Input voltage: Must account for on-site voltage fluctuations and surge margins; selection must not be based solely on nominal values;

- Output power / current: Allow a 20%–30% margin on the rated power, whilst confirming peak current capability;

- Output accuracy, ripple and dynamic response: Prioritise POL modules for powering high-speed chips;

- Isolation requirements: Isolated DC-DC converters must be selected for medical and high-voltage industrial applications.

3) Confirmation of environmental conditions: Operating temperature range, altitude, vibration rating; wide-temperature models should be prioritised for outdoor and high-reliability applications.

4) Structure and assembly: Confirm package dimensions, mounting method (through-hole / surface-mount), and pinout; DOSA-compliant POL modules allow for compatible replacement.

5) Safety certifications: For export products, verify UL, IEC and other certificates; medical products must comply with the relevant medical safety standards.

2. Procurement Scenario Recommendations

- R&D stage: Request samples; small-batch trial production is recommended to simultaneously evaluate temperature rise, ripple and start-up timing;

- Mass production stage: Finalise part numbers and confirm lead times; VMI (Vendor-Managed Inventory) can be utilised to mitigate the risk of stock-outs;

- Redundancy Design: For high-power rack-mounted systems, prioritise DC-DC modules that support parallel current sharing.

3. Key Points to Avoid Common Selection Pitfalls

- POLs are non-isolated power supplies and cannot be connected directly to AC input; they must be paired with an AC-DC or isolated DC-DC bus at the front end;

- When derating modules, the output load must be further reduced in high-temperature environments;

- Pay attention to remote enable logic (high-active / low-active) to avoid chip damage caused by incorrect power-up sequencing;

- For multi-rail power supply systems, prioritise POLs that support voltage tracking to ensure synchronised power-up sequencing.

III. Supply Quality and Delivery Assurance for Mingjiada Electronic Products

Shenzhen Mingjiada Electronics Co., Ltd. was established in 1996. With its headquarters in Shenzhen and warehousing branches in Hong Kong and Japan, the company holds ISO 9001 quality management system certification. It has long supplied the full range of Delta AC-DC, DC-DC and POL power modules, whilst also offering electronic component recycling services to provide customers with full-cycle supply chain services.

1. Quality Assurance

Genuine, authentic sourcing channels: All Delta power modules are sourced through authorised channels, with complete and traceable batch records. Sampling inspections for appearance and electrical performance are conducted prior to warehousing to eliminate refurbished or loose new components; original manufacturer’s specifications and test reports are provided;

Quality Control System: We implement ISO 9001 quality control processes, including zoned storage of materials, temperature and humidity control, and anti-static management;

After-sales Technical Support: Our team of power supply application engineers assists with Delta module selection and BOM verification, whilst providing technical advice on application issues.

2. Delivery Assurance

Dual-warehouse system: Coordinated operations between warehouses in Shenzhen and Hong Kong, with mainstream Delta power modules always in stock, covering the AA series AC-DC, isolated brick-type DC-DC, and DNK/DCK POL modules;

Flexible delivery times: Standard orders delivered within 1–3 days; urgent orders dispatched within 4 hours, with domestic shipping within 24 hours; DDP global logistics supported;

Flexible Procurement Models: We support sample orders, small batches, trial production and large-scale bulk procurement, offering one-stop BOM fulfilment as well as VMI and JIT delivery models;

Full Lifecycle Supply Chain Value-Added Services: In addition to component supply, we provide customer obsolete stock recovery services to optimise asset turnover and reduce overall project costs.

IV. Summary

Delta’s AC-DC, DC-DC and POL power modules form a comprehensive modular power supply solution, covering the entire power supply chain from mains input to the chip load point. Balancing efficiency, density and reliability, they are suitable for a wide range of sectors including industrial, telecommunications, AI computing and humanoid robotics. Leveraging a stable global supply chain, rigorous quality control and flexible delivery capabilities, Shenzhen Mingjiada Electronics provides customers with a one-stop procurement solution for Delta power modules, catering to both R&D prototyping and large-scale mass production requirements, whilst also offering idle stock recovery services to comprehensively optimise customers’ power supply chain management.