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Power adapter: Can two be used in parallel simultaneously?

Article Source：Kinri Energy | Author：Kinri Energy | Issuing Time：2024.03.28
When using electronic devices, we often encounter situations that require additional power supply. Some people may consider whether it is possible to use two power adapters in parallel to provide sufficient power. This article will explore this issue and analyze the feasibility of using power adapters in parallel.




1. The function of the power adapter

A power adapter is a device used to convert AC power into the DC power required for electronic devices. It converts the AC power provided by the power grid into DC power suitable for equipment operation to ensure the normal operation of the equipment.

2. Output power of power adapter

Each power adapter has a specific output power. This power is usually expressed in watts (W). The equipment manufacturer will clearly specify the minimum output power required in the equipment specifications. This is to ensure that the adapter can provide sufficient power to support the normal operation of the device.

Feasibility of using two power adapters in parallel

It is possible to use two power adapters in parallel, but the following points should be noted:

a. Voltage and current of the adapter: Two parallel adapters must have the same output voltage and sufficient output current to meet the equipment's requirements. Otherwise, insufficient power cannot be provided, which may cause the device to malfunction or the adapter to overload.

b. Load distribution of adapters: When using two adapters in parallel, the current distribution of the load (i.e. the device) must be balanced. This means that both adapters will be responsible for supplying equal current. Otherwise, an adapter may overheat or be damaged due to excessive load.

c. Safety issue: Using two adapters in parallel may increase the risk of current and voltage fluctuations during power transmission. This may have an impact on the security of the device and adapter itself. Therefore, it is recommended to handle this configuration with caution and ensure that the adapter and device comply with the corresponding security standards.

Although using two power adapters in parallel may seem like a solution in some cases, in reality, it requires meeting a range of technical and safety requirements. It is necessary to ensure that the adapter has the same output voltage and sufficient output current, and to allocate the load reasonably. At the same time, pay attention to potential safety issues. It is recommended to try using two power adapters in parallel only when the demand is specific and there is relevant professional knowledge support. For most cases, a single adapter can provide sufficient power to meet the needs of the device.
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