Brushless underwater thruster power supply - DigiKey TechForum

23 Jun.,2025

 

Brushless underwater thruster power supply - DigiKey TechForum

Hello I need help choosing the correct power supply for my project. I will be using 8 of these thrusters[1] and these drivers[2]. The specifications on the motors are:
voltage: 12-24v
current: 13A
power: 30-200W
motor kV: 600kV

Click here to get more.

Thank you for the help!

[1] Amazon.com

[2] Amazon.com

Hi @miguel_delacruz ,

These are typically operated from a NiMh or LiPo battry so that there is no wire attached to it to a wall outlet based power supply. Is this going to be a stationary, or wire guided underwater vessel? If you need wireless and not tied to an outlet then you would use a battry instead of a power supply. A single motor lists up to 200 watts a piece, depending what speed you will run them at you may need at least 200W of power for each of the motors. Please let us know further about your application.

Underwater ROV 101: The Ultimate Guide - Deep Trekker

What Is an Underwater ROV?

ROV stands for “Remotely Operated Vehicle”, a submersible robot designed to explore and perform underwater tasks in marine environments. Equipped with cameras, sensors, and manipulators, these submarine drones allow operators to inspect, monitor, and interact with underwater structures, assets, and ecosystems without requiring direct human presence.

For example, Deep Trekker’s portable designs, built with robust materials, simplify underwater exploration in challenging environments, whether for routine maintenance or scientific research.

Underwater ROVs have become indispensable tools for projects in marine science, industrial inspections, and beyond. These compact, versatile machines empower professionals to perform complex tasks with efficiency, accuracy, and safety. Selecting the ideal underwater ROV for your operations requires a thorough understanding of their capabilities, applications, and considerations.

The History of Underwater ROVs

Underwater ROVs trace their origins back to the mid-20th century when they were primarily developed for military and industrial purposes. The U.S. Navy pioneered early designs in the s, creating vehicles capable of retrieving lost equipment and performing inspections in deep-sea environments.

The finding of the Titanic by Robert Ballard required a new type of ROV. They developed this machine with help from the Navy. The latest version enabled the discovery of the famous wrecks of the Titanic and Bismarck.

By the s, advancements in materials, electronics, and imaging technology expanded their use to commercial applications. The oil and gas industry adopted ROVs for deepwater drilling support, revolutionizing subsea infrastructure management.

In recent decades, compact and portable underwater ROVs, such as Deep Trekker's models, have brought these capabilities to a wider range of users. From scientific research to aquaculture, modern ROVs are accessible, cost-effective, and highly versatile.

Early ROVs required tethered connections to large power systems, limiting mobility. Today, innovations in battery technology and portability have enabled tools like the DTG3 to operate seamlessly in remote locations, empowering smaller teams to accomplish complex underwater tasks.

What Advantages Do Underwater ROVs Bring to Operations?

Underwater drones, or ROVs, provide several key benefits that make them invaluable for a wide range of applications. Their versatility, efficiency, and safety features allow users to accomplish complex tasks with precision and reliability.

Increased Safety

Underwater ROVs eliminate the need for human divers in hazardous environments, such as strong currents, deep waters, or confined spaces. This reduces the risk of injury while ensuring thorough inspections and data collection. For example, a nuclear plant can utilize a Deep Trekker underwater ROV to inspect reactor cooling structures, avoiding the risks associated with human entry into radioactive areas.

Cost Efficiency

By reducing the need for costly equipment, personnel, and downtime, ROVs lower operational expenses. They enable detailed inspections and maintenance without extensive setups, such as scaffolding or dewatering systems. For example, a hydropower facility can save thousands of dollars by using a Deep Trekker ROV for underwater dam inspections instead of draining the reservoir.

Accessibility

Modern underwater drones are portable and easy to deploy, allowing users to access hard-to-reach locations quickly. Their lightweight designs and advanced battery technology enable operations in remote areas without heavy logistical support.

Enhanced Data Collection

Equipped with high-resolution cameras, sonar, and sensors, ROVs provide comprehensive data for analysis. This ensures accurate reporting, aiding decision-making processes across various industries. For example, an environmental organization can use an underwater ROV with 4K imaging to monitor coral reef health, collecting data critical for conservation efforts.

Versatility Across Applications

From aquaculture and marine research to infrastructure inspections, ROVs excel in diverse environments. Their modular designs allow for customization, ensuring that each vehicle can be tailored to specific needs. For example, an oil and gas company can equip a Deep Trekker REVOLUTION ROV with sonar to locate and assess subsea pipelines effectively.

Ultimately, underwater ROVs offer significant advantages by improving safety, lowering costs, and delivering accurate results, making them essential tools for professionals and enthusiasts alike.

Reliable Operation

Magnetically coupled drives eliminate the need for regular maintenance, offering a durable, low-maintenance system without wear-prone components. This ensures reliable performance mission after mission.

Durable Materials

Deep Trekker ROVs utilize lightweight yet strong materials like aluminum and carbon fiber. These materials provide neutral buoyancy for better navigation while withstanding tough underwater conditions.

Precision and Control

Features like Hall effect sensors provide accurate data, while the BRIDGE technology minimizes latency for seamless control. Thruster configurations are tailored to specific applications, with compact designs for nimbleness and multi-thruster setups for stability.

Seamless Integration

Using standardized communication protocols, Deep Trekker ROVs integrate advanced tools like sonar and DVLs, ensuring compatibility with evolving underwater technologies.

Every component, from lens covers to thruster designs, is optimized to balance durability, functionality, and performance for efficient underwater operations.

What Industries Use Underwater ROVs

Underwater ROVs, initially pioneered by the Navy, have become indispensable across various commercial industries and professionals, providing innovative solutions to complex challenges in aquatic environments.


Oil and gas companies use them for site exploration and pipeline monitoring, while oceanic research organizations deploy them for seafloor analysis. Aquaculture operations benefit from drones for net inspections, feeding, stock monitoring, and environmental protection, offering cost-effective and efficient solutions. Commercial diving and infrastructure inspections leverage drones to enhance safety by reducing diver exposure in confined spaces. As technology advances, these versatile tools are increasingly accessible, driving their adoption in diverse ocean-based industries. Deep Trekker ROVs cater to both hobbyists and professionals with tailored solutions.

Commercial Divers and Inspection Teams

Underwater ROVs complement or replace traditional diving operations by offering safer, more efficient methods for inspections and maintenance. Infrastructure assessments, such as bridge pilings or water tanks, are frequently conducted using these tools.

Researchers and Academics

Marine scientists and educational institutions leverage underwater drones to study ecosystems, monitor climate change impacts, and collect data in otherwise inaccessible areas. A research team can use a Deep Trekker underwater ROV to survey submerged archaeological sites, gathering detailed imagery without disturbing artifacts.

Aquaculture Operators

Fish farm managers utilize ROVs to inspect net pens, monitor fish health, and ensure compliance with environmental regulations. These tools minimize the need for manual dives, improving safety and efficiency. An aquaculture company can expect a 40% reduction in inspection costs after adopting Deep Trekker ROVs for routine monitoring.

Energy Sector Professionals

Hydroelectric, wind, and nuclear facilities rely on ROVs to inspect submerged assets, such as pipelines and reactor cooling systems, ensuring regulatory compliance and operational safety. Deep Trekker ROVs can perform detailed inspections of submerged intake structures at a nuclear power plant, for example, reducing downtime and costs compared to traditional methods.

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Law Enforcement and Emergency Response

Police and rescue teams deploy underwater drones to search for evidence, locate missing persons, and recover submerged objects.For example, a police department can use a Deep Trekker underwater ROV to locate a vehicle in a murky river, expediting recovery efforts without risking personnel safety.

Underwater drones continue to expand their reach, empowering professionals across disciplines to achieve their goals with precision and reliability.

Other Industries Benefiting from Underwater ROVs

  • Search and Rescue (SAR): Emergency response teams deploy ROVs for locating missing persons, vehicles, or evidence submerged in water.
  • Aquaculture: Fish farms utilize ROVs for net inspections, biomass monitoring, and environmental compliance, reducing labor and enhancing safety.
  • Infrastructure Inspection: Engineers rely on ROVs to assess underwater structures like dams, pipelines, and bridges, ensuring structural integrity and safety.
  • Oil and Gas: ROVs are essential for pipeline inspections, platform maintenance, and underwater construction in offshore environments.
  • Marine Research: Scientists use ROVs to study ecosystems, map seafloor topography, and monitor environmental changes.
  • Hydropower and Utilities: Power plants use ROVs to inspect submerged turbines, intake screens, and cooling structures, improving maintenance efficiency.

Professionals across industries benefit from the precision, reliability, and cost-effectiveness that ROVs bring to their operations. These tools have become indispensable for tasks requiring underwater access and robust performance.

The Hobbyist

Underwater ROVs have become an exciting tool for hobbyists, thanks to their increasing availability and ease of use. Whether you are a photographer, videographer, or simply curious about the underwater world, these devices allow users to engage with aquatic environments in new and creative ways. Compact ROVs like the PHOTON provide high-definition 4K video and camera capabilities, making it easy to capture stunning visuals directly on your handheld controller. Depth-rated to 120 meters, these systems offer reliable access to areas previously unreachable.


A hobbyist can use ROVs for a variety of applications, such as:

  • Underwater Exploration: Observe marine life, explore coral reefs, inspect shipwrecks, or venture into underwater caves.
  • Underwater Photography and Videography: Produce creative underwater content, capturing the beauty of aquatic ecosystems or documenting unique discoveries.
  • Wreck Diving and Exploration: Discover and document historic shipwrecks with ease and precision.
  • Data Recording: Use ROVs equipped with high-definition cameras and sensors to monitor environments or participate in citizen science projects.
  • Education and Learning: Engage with marine ecosystems through hands-on learning experiences, popular among students, educators, and families.
  • Recreational Activities: Simplify routine tasks such as inspecting boat hulls or locating lost objects underwater while adding an element of fun.

From exploring hidden underwater formations to learning more about marine environments, hobbyists can rely on ROVs for an innovative and educational diving experience.

The Professional

Professionals rely on robust underwater ROVs like the Deep Trekker PIVOT and REVOLUTION for tasks ranging from deep inspections to high-stakes operations. These working-class underwater drones act as safe alternatives to divers, offering versatility for offshore projects, military missions, and underwater research. With capabilities like inspecting vessel hulls for structural integrity, invasive species, or contraband, Deep Trekker ROVs enhance operational safety and efficiency.


Professionals use underwater ROVs for a wide range of applications, including:

  • Offshore Oil and Gas Industry: Perform inspections, maintenance, and repair tasks on subsea infrastructure like pipelines and wellheads.
  • Hydroelectric and Dam Inspections: Identify issues such as cracks, sediment buildup, or structural damage.
  • Military and Defense: Conduct mine detection and clearance, salvage operations, surveillance, and reconnaissance. ROVs like those used by the U.S. Navy enhance safety in explosive ordnance disposal and intelligence gathering.
  • Search and Recovery: Assist police, fire, and first responder teams in locating missing persons, recovering weapons or contraband, and managing underwater incidents.
  • Aquaculture: Monitor fish, inspect nets, sample water quality, and oversee feed distribution.
  • Infrastructure Inspections: Examine sewer and wastewater pipelines, underwater cables, and hydroelectric dams for maintenance and repair.
  • Scientific Exploration and Archaeology: Explore archaeological sites, investigate underwater geology, map ecosystems, observe marine life, collect samples, and recover artifacts.

Deep Trekker’s ROVs are essential tools for professionals across industries, offering durability, precision, and adaptability for complex underwater challenges.

Key Components to Consider

Cameras and Sensors

The heart of any underwater ROV is its imaging and sensory systems, which enable precise navigation, detailed inspections, and effective data collection underwater. Ultra-high-definition 4K cameras capture sharp visuals, complemented by powerful LED lighting to ensure clarity in low-visibility environments. These features are essential for applications like pipeline inspections, aquaculture monitoring, and marine research.

To enhance functionality, ROVs can also be equipped with advanced sensors. Sonar systems provide critical data for mapping and object detection in murky waters, while USBL systems enable precise real-time positioning. IMUs stabilize the underwater ROV by measuring orientation and movement, and DVLs offer reliable velocity tracking relative to the seafloor or water column. Depth sensors further ensure operational safety by monitoring the ROV’s position underwater.

Together, these technologies empower operators with the tools needed for complex underwater missions.

Power and Propulsion

Battery-powered ROVs provide unparalleled portability and runtime. The propulsion system determines speed, stability, and the ability to navigate currents. Deep Trekker’s ROVs feature lithium iron phosphate (LiFePO4) batteries for long-lasting performance and safety, making them ideal for inspections without tethering to optional topside power sources. These systems are also powered by six vectored thrusters, offering unmatched control, maneuverability, and station holding, even in strong currents or confined spaces.

Control Systems

Control systems are vital for adapting to different environments. Deep Trekker ROVs offer highly flexible control options, ensuring adaptability across diverse environments and applications. Operators can integrate custom configurations via the BRIDGE Box and choose between handheld controllers, intuitive tablet interfaces, control centers, and more. This versatile platform enables remote operation and advanced control, making it ideal for challenging scenarios such as offshore inspections, confined spaces, or hazardous areas.

Positioning systems are integral to effective underwater navigation. Deep Trekker ROVs utilize tools like dead reckoning, USBL (Ultra-Short Baseline), and ROV GPS to deliver precise location tracking, even in dynamic conditions. The Mission Planner feature further enhances autonomy, allowing operators to pre-program navigation routes for surveys or inspections. For example, a shipyard can deploy a GPS-enabled ROV to efficiently map submerged infrastructure, reducing operational time and eliminating the risks associated with manual diving.

These sophisticated control systems provide unmatched accuracy, efficiency, and ease of use, allowing professionals to undertake complex underwater missions with highly improved data acquisition.

Deep Trekker ROVs incorporate features such as intuitive control systems and advanced navigation options like distance lock, dead reckoning, and positioning tools. These capabilities ensure precise maneuvers, station-keeping, and consistent, reliable data during intricate tasks.

Ultra High-Definition Imaging

Equipped with UHD 4K cameras and optional lighting, Deep Trekker ROVs deliver sharp visuals in diverse conditions, supporting applications like inspections, marine research, and aquaculture monitoring.

Durability and Reliability

Deep Trekker ROVs are engineered with premium, robust materials to endure the most challenging environments, including cold-water operations, corrosive saltwater conditions, and confined or hazardous spaces. These fully integrated systems are pressure-tested to ensure reliability at depth, with precision-sealed components to protect against leaks and mechanical wear.

Backing this durability is our industry leading support team, renowned for our dependability and rapid response. Whether addressing technical issues in the field or providing guidance, our expert team ensures minimal downtime and seamless operation for mission-critical tasks.

FAQ

How Deep Can an Underwater ROV Go?

The operational depth of an underwater drone varies depending on its design and purpose. Entry-level recreational ROVs typically operate at depths of 100–200 meters, while professional-grade models can reach much greater depths.

Deep Trekker ROVs, for example, offer solutions for various needs:

  • DTG3: Depth rating of up to 200 meters, ideal for most inspection and exploration tasks.
  • REVOLUTION: Designed for demanding applications, capable of diving up to 305 meters.
  • For extreme depths, specialized ROVs used in deep-sea exploration can reach thousands of meters, such as those utilized in scientific research and subsea oil and gas operations.

How Hard is it to Pilot an Underwater ROV?

Learning to pilot a Deep Trekker ROV is straightforward and accessible, even for beginners, thanks to its intuitive design and advanced features. These ROVs are equipped with six vectored thrusters, providing precise maneuverability and enabling operators to move seamlessly in all directions - forward, backward, laterally, and vertically. This level of control is critical for navigating complex environments, such as pipelines, reactor heads, or aquaculture nets.

The compact size of Deep Trekker ROVs further simplifies piloting, especially in confined or cluttered spaces. Operators can guide the vehicle through narrow passages or inspect hard-to-reach areas without worrying about bulk or entanglement.

Custom control options, such as handheld controllers or integrated touchscreen tablets, cater to individual preferences and mission requirements. Features like station holding - where the ROV maintains its position even in currents - make piloting more manageable, enabling operators to concentrate on inspection or data collection tasks.

Training typically takes only a few hours to grasp the basics, with most operators becoming proficient within a day. Deep Trekker’s user-friendly interface and responsive controls ensure a quick learning curve. Additionally, onboard stabilization technology mitigates drift and improves accuracy, enabling operators to achieve professional-grade results with minimal practice.

Whether you are a seasoned professional or a first-time user, Deep Trekker ROVs are designed to make underwater piloting as straightforward and effective as possible.

Do Underwater Drones Work in Murky Water?

Yes, underwater drones are designed to operate in low-visibility or murky environments. Features such as powerful LED lighting and sonar imaging enable operators to navigate and capture data effectively when visibility is limited.

  • Sonar Systems: Deep Trekker ROVs can be equipped with sonar add-ons, providing clear imaging even in turbid conditions. This is particularly useful for:
  • Search and Recovery: Locating submerged objects or individuals in cloudy water.
  • Infrastructure Inspections: Detecting damage or blockages in pipes and other submerged structures.
  • Marine Research: Mapping and surveying areas with high sediment levels.

Advanced navigation tools, such as distance lock and dead reckoning, further enhance the ability to operate confidently in challenging conditions.

Can Underwater Drones Be Used Militarily?

Yes, underwater ROVs have long been vital tools for military operations, particularly for the U.S. Navy. These devices are used for:

  • Mine Detection and Clearance: ROVs identify and safely neutralize underwater mines, reducing risks for divers.
  • Salvage Operations: Military teams employ ROVs to recover sunken equipment or debris from maritime incidents.
  • Intelligence, Surveillance, and Reconnaissance (ISR): Compact ROVs provide real-time imagery and data, supporting tactical decision-making in challenging environments and gathering critical data.
  • Port Security: Inspecting harbors and detecting potential threats, such as unauthorized devices or vehicles.

The U.S. Navy, among others, incorporates advanced underwater ROVs into its fleet to enhance mission efficiency and safety in underwater operations.