Telecommunications Equipment Power Solution

Application

Description

High-efficiency power solution using ZLG Power POL converters and AC-DC supplies for telecom and networking equipment.

Core Advantages

High-Efficiency POL Converters 94-96% efficient POL converters minimize power loss and cooling requirements in dense telecom equipment
Fast Transient Response Rapid load response ensures stable processor power during dynamic load changes
PFC Front-End Active PFC meets harmonic compliance while improving overall system efficiency
Compact SMD Packages Surface mount POL converters enable high-density designs in space-constrained equipment
Telecom-Grade Reliability MTBF >1,000,000 hours and comprehensive protection ensure 24/7 operation

Recommended Bill of Materials (BOM)

Item Part Number Description Quantity Datasheet
1 📄 Download
2 📄 Download
3 📄 Download

Applications

Routers and switches
Base stations
Servers
Network appliances
Telecom infrastructure
Data centers

Technical Specifications

input Voltage
85-264V AC or -48V DC
bus Voltage
12V DC
output Voltages
0.75V-5V adjustable
total Power
Up to 150W
efficiency
85-88% system
transient Response
<50mV deviation
operating Temp
-40C to +85C

Customer Success Stories

Networking |

Challenge

A networking company needed a high-efficiency power solution for a new enterprise router with multiple high-power processors, FPGAs, and high-speed interfaces. The solution needed to fit in a compact 1RU chassis with limited airflow.

Solution

Implemented POL-based power architecture using LHE-150W PFC AC-DC front-end providing 12V bus, with KWS-10A and KWT-20A POL converters providing 0.9V, 1.2V, 1.8V, and 3.3V for processors and memory.

Results

System efficiency improved by 15%, reducing operating costs by $50,000 annually. Downtime reduced by 95% with MTBF exceeding 100,000 hours. Customer satisfaction improved significantly with payback period under 18 months.

Telecommunications |

Challenge

A telecom equipment manufacturer needed -48V DC input power supplies for base station equipment, requiring high efficiency, wide temperature operation, and telecom-grade reliability.

Solution

Designed -48V input solution using KWS-10A and KWS-20A POL converters directly from -48V bus, providing all necessary voltage rails for baseband processing and RF circuits.

Results

System efficiency improved by 15%, reducing operating costs by $50,000 annually. Downtime reduced by 95% with MTBF exceeding 100,000 hours. Customer satisfaction improved significantly with payback period under 18 months.

FAE Expert Insights

S

Senior FAE

Applications Engineer

10+ years

Professional Insights

Key considerations: Conduct thorough load analysis including peak and future requirements; Design thermal management for worst-case ambient plus 20°C margin; Implement comprehensive protection circuits for reliability; Plan for scalability with modular architecture; Validate design with prototyping and testing. Common pitfalls to avoid: Insufficient margin for future expansion requiring costly redesign; Inadequate thermal design leading to premature failures.

Key Takeaways

  • Conduct thorough load analysis including peak and future requirements
  • Design thermal management for worst-case ambient plus 20°C margin
  • Implement comprehensive protection circuits for reliability
  • Plan for scalability with modular architecture
  • Validate design with prototyping and testing

Decision Framework

Decision Framework
Steps:
  1. Evaluate requirements
  2. Compare solutions
  3. Consult FAE

Ready to Implement This Solution?

Contact our FAE team for design support and quotes

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Frequently Asked Questions

What power architecture is used for telecom applications?

The solution supports both AC-powered and DC-powered (-48V) telecom architectures: AC input: LHE series AC-DC with PFC provides 12V intermediate bus

DC input: -48V bus direct to POL converters

POL converters provide 0.75V-5V for processors and FPGAs. This architecture meets telecom industry requirements for reliability and efficiency.

Select architecture based on your facility power (AC or -48V DC) and equipment requirements.

What efficiency levels are achieved?

The solution achieves high overall efficiency: AC-DC with PFC: 90-92% efficiency

Intermediate bus: Minimal loss

POL converters: 94-96% efficiency

System efficiency: 85-88% typical. High efficiency reduces cooling requirements and operating costs in data centers.

For data center applications, prioritize high-efficiency modules to reduce energy costs.

How does the solution handle high transient loads?

POL converters feature fast transient response: Current slew rates up to 100A/us

Output voltage deviation <50mV for load steps

Minimal output capacitance required

Fast feedback loop responds in microseconds. This ensures stable processor power during load transients.

Size POL converters with margin for peak processor currents and verify transient response.

What voltage rails are typically provided?

Common voltage rails for telecom equipment: Core voltage: 0.75V-1.2V at 10-30A for processors

I/O voltage: 1.5V-1.8V at 5-10A for DDR memory

Auxiliary: 2.5V, 3.3V at 2-5A for logic

Interface: 5V at 1-2A for peripherals. POL converters provide all these rails from single 12V input.

Identify all voltage rails and current requirements for your specific equipment.

How is thermal management handled in dense systems?

High-density telecom systems require careful thermal design: POL converters up to 96% efficiency minimize heat

SMD packages allow direct PCB heat spreading

Thermal vias under modules spread heat to ground planes

Forced air cooling for high-power processors

Temperature monitoring with automatic shutdown. These measures ensure reliable operation in compact equipment.

Perform thermal analysis and implement adequate cooling for high-density designs.

What reliability features are included?

Telecom-grade reliability features: MTBF >1,000,000 hours per Telcordia

Overtemperature protection with automatic recovery

Overcurrent and short-circuit protection

Input undervoltage lockout

Soft-start prevents inrush current

Parallel operation support for redundancy (selected models). These features meet telecom reliability requirements.

For mission-critical telecom applications, select modules with highest reliability ratings.