BOSHIDA’s description of the overcurrent protection function of DC power module
DC power module is a common power supply module that is widely used in various electronic equipment and systems. In order to ensure the safety and reliability of the power module, an overcurrent protection function is usually set.
The overcurrent protection function means that when the output current of the power module exceeds the rated current, the output will be automatically cut off to avoid damage to the power module or equipment. Let’s introduce the overcurrent protection function of DC power module in detail.
First of all, overcurrent protection of DC power modules usually uses current detection and control technology. At the output port of the power module, a current sensor or fuse is usually installed to detect whether the output current exceeds the rated current. When the output current exceeds the rated current, the current sensor will detect the signal and feedback it to the control circuit, which will immediately cut off the output to protect the power module and equipment.
Secondly, in order to ensure the accuracy and reliability of the overcurrent protection function, some protection measures are also installed in the power module, such as delay protection, hardware protection and software protection. Among them, delay protection means that after the output current of the power module exceeds the rated current, the system will perform a certain delay operation to ensure the accuracy and stability of over-current protection. Hardware protection means that when designing the power module, the overcurrent protection circuit and control circuit are placed on independent hardware protection boards to avoid interference and misoperation. Software protection refers to adding some intelligent control algorithms to the power module, which can automatically detect and judge the overcurrent protection situation to improve the safety and stability of the system.
Finally, it should be noted that when using DC power modules, care should be taken to select the appropriate rated current and operating voltage to avoid overloading and damaging the power module. At the same time, the power module should be inspected and maintained regularly to ensure the normal operation and reliability of the overcurrent protection function.
Overcurrent protection is an important function to protect the safe operation of DC power modules and equipment. When designing and using DC power modules, overcurrent protection technology and functions should be fully considered to improve system safety and stability.