Vicor Power Filters provide advanced filtering solutions for power systems. These filters suppress conducted noise and improve power quality in both DC and AC power applications, ensuring clean and stable power delivery to sensitive electronic equipment.
Overview
Power filters are essential components in power systems that help manage conducted electromagnetic noise generated by switching power supplies and other electronic equipment.
Vicor's power filters use advanced filter topologies and components to suppress both common-mode and differential-mode noise while maintaining low insertion loss for the desired power signal.
Key Features
Advanced Filter Topology
Utilizes optimized filter configurations including common-mode and differential-mode stages to address different noise types.
High Frequency Performance
Designed to suppress noise across a wide frequency range from kHz to GHz frequencies.
Low DC Resistance
Minimizes power losses and voltage drop in the power delivery system while providing effective filtering.
High Power Handling
Capable of handling high power levels while maintaining effective noise suppression.
Technical Specifications
| Model | Power Range | Efficiency | Input Voltage | Output Voltage/Current | Package | Applications |
|---|---|---|---|---|---|---|
| PFx-12V-10A | 120W | N/A | 12V | 12V | Through-Hole | Low-voltage systems |
| PFx-24V-20A | 480W | N/A | 24V | 24V | Through-Hole | Industrial systems |
| PFx-48V-30A | 1440W | N/A | 48V | 48V | Chassis Mount | High-power systems |
| PFx-380VAC-16A | 6kW | N/A | 380VAC | 380VAC | Panel Mount | AC input systems |
| PFx-24V-5A-SMT | 120W | N/A | 24V | 24V | SMT Package | Space-constrained systems |
Applications
Vicor Power Filters are suitable for a wide range of applications where power quality and noise reduction are critical. Common applications include:
Data Center Equipment
Filtering for power supplies in servers, networking equipment, and storage systems to ensure clean power and reduce noise coupling.
Industrial Automation
Power filtering for PLCs, motor drives, and other industrial equipment to prevent noise interference and maintain system reliability.
Telecommunications
Filtering for base stations, routers, and other telecom infrastructure equipment to reduce conducted emissions and improve signal integrity.
Design Considerations
Filter Placement
Power filters should be placed as close as possible to the power entry point of the equipment to maximize effectiveness. Proper mounting and grounding are essential for optimal performance.
System Integration
Consider the interaction between the power filter and other components in the system. Load variations can affect filter performance, so verify operation across the expected range of operating conditions.
Thermal Management
Power filters dissipate some power as heat, particularly at higher current levels. Ensure adequate thermal management in the system design to maintain reliable operation.
Frequently Asked Questions
What is the difference between common-mode and differential-mode noise?
Common-mode noise appears on both power lines with respect to ground in the same direction. Differential-mode noise appears between the power lines in opposite directions. Power filters typically address both types of noise.
Why are power filters necessary in power systems?
Switching power supplies generate high-frequency noise that can interfere with other equipment and cause system instability. Power filters suppress this noise to ensure proper operation and improve power quality.
How do I select the right power filter for my application?
Consider the operating voltage, current, required attenuation, package constraints, and power handling requirements. The filter should have adequate current rating with margin above your application's requirements.
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