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Description
TRICON 8305A Triple module redundancy (TMR) power supply
Product Overview:
Triple module redundancy (TMR) power supply is a fault-tolerant design technique designed to improve
system reliability and stability. It adopts three independent power modules in parallel, and ensures the
correctness of power output through a majority voting system. When one power module fails or is faulty, the
other power modules automatically take over power supply to ensure the stable and reliable running of the system.
Specifically, triple module redundant power supplies work as follows:
Multiple Psus are connected in parallel to share the load current. The output voltage of each PSU is the same.
A power management module or controller is used to monitor the status and operation of each power module.
When a power module fails or the output voltage is abnormal, the power management module or controller detects and sends a fault signal.
After receiving the fault signal, the other working Psus supply power from the standby power
supply or the output of other Psus to take over the load of the faulty Psus.
When the faulty power module recovers or is replaced, the system automatically switches back
to the normal working mode and continues to provide redundant power supplies.
This power design technology is widely used in critical applications such as aerospace, industrial
automation, etc., as it significantly improves system reliability and fail-safe capabilities.
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Advantages and disadvantages of the power module：
As a fault-tolerant design technique, Triple module redundancy (TMR) power supplies have significant advantages
in providing high reliability and stability, but at the same time there are some potential disadvantages. Here’s a breakdown of its pros and cons:
Advantages:
High reliability: With three independent power modules and a majority voting system to ensure correct power output,
when one module fails, the other modules can quickly take over, greatly reducing the risk of system downtime or failure.
Fault detection and recovery capability: TMR power supplies are usually equipped with a fault detection mechanism,
which can monitor the operating status of each module in real time. Once a fault is found, the system can
quickly locate and handle it, reducing the probability of secondary faults.
Suitable for critical applications: Due to their high reliability and fault tolerance, TMR power supplies are particularly
suitable for critical applications such as aerospace and industrial automation, ensuring stable system operation in these demanding environments.
Cons:
Higher cost: Compared with traditional non-redundant power systems, triple module redundant power supplies
require more power modules and related control equipment, so their manufacturing costs and maintenance costs are relatively high.
Increased system complexity: Due to the introduction of multiple power modules and fault detection mechanisms, the
design and maintenance of the system becomes more complex. This requires engineers to have a higher level
of technology and expertise to ensure the correct configuration and stable operation of the system.
Large weight and volume: Due to the need for multiple power modules and corresponding control devices, the
weight and volume of TMR power supplies can be large, which can be a challenge in some space-constrained application scenarios.
In summary, triple module redundant power supplies have significant advantages in providing high
reliability and fault tolerance, but they also have disadvantages in terms of cost, system complexity and volume. When
choosing whether to use TMR power supplies, it is necessary to consider the specific application needs, cost budget and technical capabilities.
Please contact Sunny sales@xiongbagk.cn for the best price.
➱ sales manager: Sunny
➱ email mailto: sales@xiongbagk.cn
➱ Skype/WeChat: 18059884797
➱ phone/Whatsapp: + 86 18059884797
➱ QQ: 3095989363
➱ Website:www.sauldcs.com
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