Switch power adapters are equipped with a variety of protection functions to safeguard both the adapter itself and the connected devices from potential electrical hazards. One of the most common protection functions is over - voltage protection (OVP). When the output voltage of the adapter exceeds a pre - determined safe level, perhaps due to a malfunction in the voltage regulation circuit, the OVP mechanism kicks in. It typically does this by either shutting down the power conversion process or reducing the output voltage to a safe value. This protects the connected device from being damaged by the excessive voltage, which could otherwise fry sensitive components.

　　Over - current protection (OCP) is another vital feature. If there is a short - circuit in the connected device or an abnormal increase in the load current, the adapter's OCP function will activate. It detects the excessive current and takes measures to limit it. This can involve reducing the power output or completely cutting off the current flow. By doing so, it prevents the adapter from overheating and potentially catching fire, as well as protecting the device from the damaging effects of high currents.

　　Over - temperature protection (OTP) is also essential. During normal operation, power adapters generate heat due to the energy losses in the conversion process. However, if the internal temperature of the adapter rises too high, perhaps due to poor ventilation or a component failure, the OTP function will start to operate. It may reduce the power output to lower the heat generation or shut down the adapter completely until it cools down to a safe temperature. This helps to prevent thermal damage to the adapter and ensures its long - term reliability.

　　In addition, some adapters may have under - voltage protection (UVP), which activates when the input voltage drops below a certain threshold. This protects the adapter from operating in an unstable or inefficient state when the input power is insufficient.

Read recommendations:

65W Universal 4-pin Switching power supply

GaN 20V7.5A 150W C6

12V European standard battery charger

Power Adapters for In-Vehicle

EI-66 adapter suppliers