The multifunctional protection module in the missile-borne power module is a key part to ensure the stable and reliable operation of the missile-borne power system, and usually has the following functions and features:

1. Main Functions

• Overvoltage Protection:

When the input or output voltage exceeds the set safety threshold, the power supply is automatically cut off or voltage limiting measures are taken to prevent excessive voltage from damaging the missile-borne equipment. For example, when the input voltage of the missile-borne power supply suddenly increases due to power supply fluctuations and other reasons, exceeding the tolerance range of the module, the overvoltage protection circuit will respond quickly to prevent the voltage from causing irreversible damage such as breakdown to sensitive electronic components.

• Overcurrent Protection:

Monitor the power supply output current. Once the current exceeds the rated value, immediately cut off the power supply or limit the current to protect the power module and load equipment to avoid overheating and burning of the equipment due to overcurrent. For example, under certain special working conditions of missiles, if the load is short-circuited or abnormal, resulting in a sharp increase in current, the overcurrent protection module will act in time to prevent serious accidents such as fire caused by excessive current.

• Short-Circuit Protection:

When a short circuit is detected at the output end, the power supply is quickly cut off to prevent the short-circuit current from damaging the power supply and other circuits. In the complex wiring environment inside the missile, a short circuit may occur due to line wear, insulation damage, etc. The short-circuit protection module can react in a very short time, cut off the power supply, and ensure system safety.

• Overtemperature Protection:

Real-time monitoring of the temperature of the power module. When the temperature is too high, the power is automatically reduced or the power is cut off to prevent the module from overheating and causing performance degradation or damage. Since the missile will experience various harsh ambient temperatures during flight, and the power module itself will also generate heat when working, overtemperature protection can ensure that the module operates within a safe temperature range.

• Undervoltage Protection:

When the input voltage is lower than the set lower limit, the power output is cut off to avoid abnormal operation or damage to the equipment due to low voltage. For example, when the output voltage of the missile's thermal battery and other power supplies gradually decreases with use, the undervoltage protection module can cut off the power supply in time when the voltage drops to a certain level to prevent low voltage from causing damage to the equipment.

• Reverse Connection Protection:

Prevent damage to the power module and other equipment when the input power polarity is reversed. During the assembly and maintenance of the missile, power connection errors may occur. The reverse connection protection module can effectively avoid equipment damage caused by such errors.

2. Features

•  High Reliability:

The use of redundant design, high-quality components and advanced manufacturing processes ensures stable and reliable operation in various complex working environments of the missile, and has extremely high anti-interference and fault tolerance capabilities.

•  Fast Response:

It can detect abnormal conditions and take protective actions in a very short time, usually with a response time of microseconds or even nanoseconds to minimize the impact of abnormal conditions on the system.

• Integration:

Integrating multiple protection functions into one module reduces the size and weight, which is conducive to installation and layout in the limited space of the missile, and also improves the overall integration and reliability of the system.

•  Configurability:

Some multi-functional protection modules can adjust parameters such as protection thresholds and response times through software or hardware settings according to different missile-borne equipment requirements and working conditions, and have strong flexibility and adaptability.