The BCM Low Profile Series features compact, high-efficiency current multiplication bus converters with bidirectional power flow designed for space-constrained applications. These modules utilize Vicor's advanced LVM (Low Vertical Mount) packaging technology to deliver current multiplication in a low-profile form factor, making them ideal for applications requiring high current at low voltage where height is limited.
Overview
The BCM Low Profile Series represents Vicor's solution for space-constrained applications requiring current multiplication with preserved dynamics. These devices are specifically optimized for applications where vertical space is limited but current multiplication from a higher voltage source is needed.
The fixed-ratio transformation (typically 1:4, 1:2, or 1:1) makes them ideal for applications where you need high current at a lower voltage from a higher voltage source. The bidirectional design enables power flow in both directions, and the non-isolated design provides optimal power density in a low-profile package.
Key Features
Current Multiplication
BCM modules multiply current while reducing voltage based on the turns ratio, ideal for high-current, low-voltage applications in tight spaces.
Low Profile Design
LVM packaging technology provides a compact, low-profile solution ideal for space-constrained applications with height restrictions.
Bidirectional Power Flow
Supports power flow in both directions, enabling applications like battery systems and regenerative power conversion in compact form.
High Efficiency
Achieves up to 97.5% efficiency while in a low-profile package, minimizing thermal management requirements in tight spaces.
Technical Specifications
| Model | Power Range | Efficiency | Input Voltage | Turns Ratio | Max Output Current | Package |
|---|---|---|---|---|---|---|
| BCM4E51L100A015 | 300W | 97.2% | 36-75V | 1:4 | 120A | LVM |
| BCM4E51L100A030 | 600W | 97.5% | 36-75V | 1:4 | 240A | LVM |
| BCM4E51L100A046 | 1000W | 97.7% | 36-75V | 1:4 | 400A | LVM |
| BCM4E31L100A046 | 1000W | 97.4% | 24-55V | 1:2 | 400A | LVM |
| BCM3E31L100A023 | 500W | 97.3% | 36-75V | 1:2 | 200A | LVM |
Applications
BCM Low Profile modules are optimized for space-constrained applications requiring current multiplication with preserved dynamics. Common applications include:
Aviation Electronics
High-current power delivery in aircraft systems with tight height restrictions and bidirectional power flow.
Medical Equipment
Compact power systems for medical devices requiring high current with limited vertical space.
Automotive Systems
Power conversion in automotive applications with space constraints and bidirectional power flow requirements.
Design Considerations
Power Delivery Network
BCM modules preserve the power delivery network dynamics to the load, meaning that the load "sees" the upstream source characteristics. This can be advantageous in applications where load transient requirements are met by the upstream source, even in compact spaces.
Layout Recommendations
For optimal performance in space-constrained applications, ensure adequate copper for current carrying and proper thermal management within the limited vertical space. Minimize current loops to reduce inductance and electromagnetic interference in tight layouts.
System Integration
BCM Low Profile modules excel in applications where you need high current multiplication with preserved dynamics in a compact form factor. They are ideal for applications where load transients are handled by the upstream power source and space is at a premium.
Frequently Asked Questions
How does current multiplication work in BCM modules?
BCM modules use a fixed turns ratio transformer to multiply current while reducing voltage. For example, with a 1:4 ratio, the output current is 4x the input current at 1/4 the voltage, maintaining power (minus losses).
What is the difference between BCM and DCM modules?
BCM modules provide current multiplication with bidirectional power flow in a non-isolated design. DCM modules provide voltage transformation with galvanic isolation but no current multiplication.
Can BCM Low Profile modules handle bidirectional power flow?
Yes, BCM modules are bidirectional by design, allowing power to flow from input to output or output to input, making them ideal for applications like battery charging/discharging in compact systems.
Related Products
DCM Modules
Fixed-ratio bus converters with galvanic isolation for voltage transformation without regulation.
PRM Modules
Regulated bus converters designed to work with VTMs in Factorized Power Architecture (FPA).
VTM Modules
Vicor Transformer Modules for current multiplication with isolation in FPA systems.