Regulated Power Distribution Unit

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Product Overview

An Electronic Circuit Breaker Unit/Power Distribution Unit has power inputs from different sources and power outputs to feed the loads. The 28VDC Electronic Circuit Breaker Unit/Power Distribution Unit has voltage and current measurement units. It can also perform detailed tasks such as soft start, over-current protection, short circuit protection, sequential opening and energizing the desired loads for power saving according to working scenarios.

Each Electronic Circuit Breaker Unit/Power Distribution Unit is designed with fail-safe logic that provides a configuration that allows the utilization of input power to the appropriate loads, ensuring that power is retained on essential loads. It has a redundant design that allows the Electronic Circuit Breaker Unit/Power Distribution Unit to prevent single-point failures. Electronic Circuit Breaker Unit/Power Distribution Unit also utilizes WoW (Weight on Wheel) logic, extensive Built-In-Test capabilities and I2T logic.

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Technical Details

• Electronic Circuit Breakers

• Digitally controlled by the vehicle computer

• BIT provides PDU status for mission assurance

• UAV Power Management System

• UAV Regulated Power Distribution System

• Trip Function

• Regulated Output

• Unregulated Output

• Uninterruptable power source coordination

• Compact, Lightweight, Low-Cost and fit to your Unmanned Vehicle

• FPGA, Artix7, 250-I/O, 2600-CLB, 33208-Cell, 484-FBGA

• Unmanned Vehicles Regulated Power Distribution System

• Unmanned Vehicles Regulated Power Management System

Interfaces

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Output Channels

❑ 7 x 24V – 1 A Current Protected Output (Regulated)

❑ 3 x 24V – 0.2 A Current Protected Output (Regulated)

❑ 1 x 24V – 1.67 A Current Protected Output (Regulated)

❑ 7 x Input Voltage (16V – 62V) – 1 A Current Protected Output (Nonregulated)

❑ 3 x Input Voltage (16V – 62V) – 0.2 A Current Protected Output (Nonregulated)

❑ 1 x Input Voltage (16V – 62V) – 1.67 A Current Protected Output (Nonregulated)

❑ 30VDC – 250W Current Protected Output (Regulated)

 

 

Input

❑ 2 x Input Supply Voltage: 26VDC - 62VDC❑ 2 x Input Supply Voltage:16VDC - 62VDC

❑ 2 x Input Supply Voltage

- Alternator Input: 15-85VAC

- Battery Input: 26VDC - 62VDC

 

Communications

❑ Isolated CANBUS

❑ Isolated RS-422

❑ Isolated CANBUS

❑ Isolated RS-422

❑ Isolated CANBUS

❑ Isolated RS-422

 

Control Mechanism

❑ 1 Control Board with FPGA.

❑ Each switching channels control from FPGA.

❑ 1 Control Board with FPGA.

❑ Each switching channels control from FPGA.

 

❑ 1 Control Board with FPGA.

❑ Each switching channels control from FPGA.

 

Electrical and Mechanical 

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Input Voltage Nominal

 

❑ 28VDC – 60VDC❑ 28VDC – 60VDC❑ 48VAC – 28VDC

 

Operating Voltage Range

 

❑ 26VDC - 62VDC❑ 26VDC - 62VDC

❑ Alternator Input: 15-85VAC

❑ Battery Input: 26VDC - 62VDC

 

Dimension

(L x W x H)(mm)

❑ 127x91x67mm❑ 127x91x67mm❑ To be defined
Weight(g)❑ 750±50❑ 750±50❑ To be defined

Environmental

• Operating Temperature: -40°C to +70°C

• Operating Altitude: 45,000ft

• MIL-STD-810H

• MIL-STD-461G

Current Status

TRL 9/9

What is the RPDU - Regulated Power Distribution Unit?

A Regulated Power Distribution Unit (RPDU) is an essential component in various industries, including the aviation, aerospace, telecommunications, data centers, and industrial sectors. It is designed to distribute electrical power to different devices or systems, while ensuring that the supplied power is consistent, stable, and within the required voltage range. The key feature of a regulated PDU is that it not only provides power distribution but also regulates the voltage and current to maintain stable power supply conditions, preventing overvoltage or undervoltage situations.

What does RPDU - Regulated Power Distribution Unit do?

1. Power Distribution:

  • The RPDU receives power from a main source (either AC or DC) and distributes it to multiple devices or systems. It typically takes a single power input and routes it to various outputs, providing electricity to different connected components.

2. Voltage Regulation:

  • The RPDU regulates the voltage it provides to connected devices, ensuring that it stays within a specific, stable range. This is crucial because power fluctuations (overvoltage or undervoltage) can damage sensitive equipment. For example, if the input voltage from the grid fluctuates, the RPDU ensures the output voltage to connected devices remains stable.

3. Overcurrent Protection:

  • RPDU units often include protection mechanisms to prevent damage to connected devices due to excessive current. This may involve current limiting, circuit breakers, or fuses that disconnect the load in case of overcurrent situations, thereby protecting the equipment.

4. Surge and Noise Protection:

  • Many RPDU units are equipped with surge protection capabilities to shield against power surges, spikes, or electrical noise, which can be caused by external factors like lightning strikes or grid disturbances. This helps prevent damage to sensitive electronics and ensures that equipment continues to operate safely.

5. Monitoring and Management:

  • Many modern RPDU units come with remote monitoring and management features, which allow users to track and control power parameters like voltage, current, and temperature. Some RPDU systems can be integrated into network management platforms and can send alerts or logs to inform users of potential issues such as abnormal power consumption or overheating.

6. Redundancy and Reliability:

  • In critical environments (like data centers, military systems, or aerospace), some RPDU units come with redundant power supplies to ensure continuous power. If one power source fails, the RPDU can automatically switch to another source, ensuring the reliability and uptime of critical equipment.

7. Power Factor Correction (PFC):

  • Some RPDU units also offer Power Factor Correction (PFC), improving the efficiency of power use. This ensures that the power drawn from the source is used effectively, minimizing energy wastage and improving the overall system performance.

Applications of RPDU:

  • Data Centers: RPDU units are used to provide clean and reliable power to server racks, routers, and networking equipment.
  • Industrial Systems: Used to distribute regulated power to automated machinery, sensors, and control systems.
  • Aerospace and Defense: Provides stable power to avionics, navigation systems, and mission-critical devices in aircraft and military systems.
  • Telecommunications: Ensures the power stability of communication equipment, such as base stations and repeaters.
  • Telecom/IT Infrastructure: Used in network switches, storage systems, and other IT devices where reliable power is essential.

What different types of RPDU - Regulated Power Distribution Unit ?

1. AC RPDU (Alternating Current RPDU)

  • Description: These RPDU units take AC power from a mains supply and regulate it before distributing it to connected devices. They provide a stable AC output with regulated voltage.
  • Key Features:
    • Provides regulated AC output to multiple devices.
    • Typically used in data centers, telecom networks, and industrial environments where AC-powered equipment is used.
    • Can be designed to handle high power loads, with output capacities ranging from a few amps to several hundred amps.
  • Applications: Server racks, network equipment, and industrial machines requiring AC power.

2. DC RPDU (Direct Current RPDU)

  • Description: These units convert AC power from a main source (like a utility grid) to DC power and distribute it to the connected devices that require direct current. DC PDU systems are often used in environments where equipment operates on DC, such as in certain telecommunications or industrial applications.
  • Key Features:
    • Converts AC input to stable, regulated DC output.
    • Often used in telecommunications infrastructure, power plants, or for battery charging systems.
    • Supports different voltage levels for various devices or equipment.
  • Applications: Telecom systems, battery backup systems, and DC-powered industrial devices.

3. Rack-Mount RPDU

  • Description: These RPDU units are designed to be mounted in 19-inch racks, commonly used in data centers, server rooms, and other environments where equipment is organized in racks.
  • Key Features:
    • Specifically designed to fit into standard server racks or telecom racks.
    • Typically offers multiple output ports (AC or DC) to supply power to several devices.
    • May offer remote monitoring, surge protection, and current monitoring features.
    • Can include multiple outlets to power several devices from a single PDU unit.
  • Applications: Data centers, server farms, network infrastructure.

4. Remote Monitoring and Managed RPDU

  • Description: These RPDU units allow users to remotely monitor and manage the power supply to connected equipment. Managed RPDU units provide advanced capabilities such as real-time monitoring of power consumption, temperature, and the ability to reboot or control outlets remotely.
  • Key Features:
    • Remote monitoring of voltage, current, power consumption, and temperature.
    • SNMP (Simple Network Management Protocol) integration for networked management.
    • Web interfaces or software for real-time monitoring and alerts.
    • Ability to control power (e.g., remotely turn off or reset devices).
    • Enhanced security features to protect against unauthorized access.
  • Applications: Data centers, critical IT infrastructure, telecommunications.

5. PoE (Power over Ethernet) RPDU

  • Description: This type of RPDU distributes power and data over Ethernet cables, making it ideal for powering network devices such as IP cameras, access points, VoIP phones, and other Ethernet-powered devices.
  • Key Features:
    • Provides both data and power over a single Ethernet cable (PoE, PoE+, or PoE++ standards).
    • Supports IEEE 802.3af/at/bt standards for power delivery.
    • Reduces the need for additional power cables and simplifies installation.
    • Some models include remote monitoring for network-connected devices.
  • Applications: IP cameras, wireless access points, security systems, VoIP devices.

6. Single-Phase RPDU

  • Description: These RPDU units are used to distribute single-phase AC power from a utility or other main source to connected equipment. Single-phase RPDU units are typically used for smaller applications or environments with low to moderate power demands.
  • Key Features:
    • Suitable for smaller systems with moderate power requirements.
    • Ideal for applications that do not require the higher capacity of three-phase power.
    • May include basic or advanced power regulation and surge protection features.
  • Applications: Small server rooms, industrial automation systems, and light commercial applications.

7. Three-Phase RPDU

  • Description: These RPDU units are used in larger, high-power environments where three-phase AC power is required. These units are capable of handling higher power loads and provide better efficiency for larger systems, making them ideal for large data centers or industrial facilities.
  • Key Features:
    • Supports three-phase power, which is more efficient for high-power equipment.
    • Suitable for large-scale systems with high power demand.
    • Ensures stable voltage regulation across three-phase inputs.
    • Often includes enhanced redundancy and failover mechanisms to ensure continuous power.
  • Applications: Large data centers, industrial manufacturing, high-capacity network equipment.

8. Surge-Protected RPDU

  • Description: These RPDU units are equipped with surge protection to guard against electrical surges, spikes, or lightning strikes. Surge-protected PDUs are commonly used in environments where electrical power quality is a concern.
  • Key Features:
    • Surge protection mechanisms to protect sensitive electronics from power spikes or fluctuations.
    • Some models feature isolated outlets to prevent the transfer of surges across multiple devices.
    • Often used in environments where the power supply is unstable or subject to fluctuations (e.g., remote sites, industrial zones).
  • Applications: Industrial facilities, research labs, telecom infrastructure, and critical equipment that requires protection against electrical surges.

9. Hot-Swappable and Redundant RPDU

  • Description: These RPDU units are designed with redundant power supplies to ensure continued power distribution even if one supply fails. They are often found in critical systems where uptime is essential, such as in telecommunications or military applications.
  • Key Features:
    • Redundant power supplies to ensure there is always a backup power source available.
    • Hot-swappable design allows for replacement of power supplies without shutting down the system.
    • Some models include additional battery backup features for continuous operation during power loss.
  • Applications: Military systems, aerospace, mission-critical data centers, telecommunications.

10. Fanless RPDU

  • Description: These RPDU units are designed without fans, making them suitable for quiet environments where noise is a concern, or where systems must operate in places with extreme conditions (e.g., high dust or extreme temperatures).
  • Key Features:
    • Fanless design to reduce noise and improve reliability (less chance of mechanical failure).
    • Often feature natural convection cooling to manage temperature without the need for active airflow.
    • Can be mounted in areas where noise is a concern (e.g., hospital equipment rooms or research labs).
  • Applications: Quiet environments, sensitive areas like medical facilities, industrial automation where noise must be minimized.

11. Hybrid RPDU

  • Description: These units can combine AC and DC outputs in a single unit. Hybrid PDUs allow for power distribution in applications that require both AC and DC supplies, simplifying the overall power architecture.
  • Key Features:
    • Can supply both AC and DC power from the same unit.
    • Used in complex environments where equipment operates on different power types.
    • Ideal for specific use cases like hybrid IT setups, telecom systems, and automated industrial systems.
  • Applications: Data centers, hybrid industrial setups, telecommunications.

Summary of Common RPDU Types:

  1. AC RPDU: Distributes regulated AC power.
  2. DC RPDU: Converts and distributes regulated DC power.
  3. Rack-Mount RPDU: Designed for 19-inch racks, common in data centers.
  4. Managed RPDU: Includes remote monitoring and management.
  5. PoE RPDU: Powers Ethernet-connected devices (e.g., IP cameras).
  6. Single-Phase RPDU: For small or medium power needs.
  7. Three-Phase RPDU: For high-power applications requiring three-phase power.
  8. Surge-Protected RPDU: Provides protection against power surges.
  9. Hot-Swappable RPDU: Includes redundancy and allows for component replacement without shutdown.
  10. Fanless RPDU: Designed for noise-sensitive or extreme conditions.
  11. Hybrid RPDU: Provides both AC and DC outputs.

Each type of RPDU is designed for specific environments, providing power regulation, safety, and convenience for diverse systems and applications. The choice of which RPDU type to use depends on factors like power needs, the environment, and whether the system requires remote management, redundancy, or specific protection features.

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