Excellent 19v4.74a 7.4mm5.0mm Power Adapter for HP 90w

Excellent 19v4.74a 7.4mm5.0mm Power Adapter for HP 90w

• When selecting the power adapter, pay attention to the following points

• Define other indicators such as ripple noise, voltage stability, load stability, etc.;

• When multiplexing, determine the voltage of the main circuit according to the load characteristics (resistance, capacitance, sensibility) and power variation range of each circuit. Generally, the output current is large and the voltage precision is high.

• According to the temperature, humidity, vibration and other requirements of the actual use environment; Choose the product level with reasonable cost performance;

•  Whether there is a common relationship between all electrical ports,

• According to the usage method or the reserved space of the device, select the appropriate power adapter type and external dimensions. Such as wall plug, desktop type, convertible head multi-plug switch power adapter;

• According to the input voltage and various output voltages and currents, find the corresponding specifications;

•  In case of failure of the power adapter product. If it is a common ground relationship, there are special requirements for the power supply

• Shenzhen Waweis Technology Co., Ltd. is a high-tech enterprise engaged in r&d, production and sales of notebook adapters. Main: switch power supply, power adapter, charger, LED power supply and other products professional production and processing. The products have passed UL, CE, FCC, KC, PSE, SAA, GS and other certifications. The products produced by the company have perfect protection function, stable performance, safe and reliable. With professional r & d, production and sales experience, the company has accumulated strong technical advantages and rich market resources in the field of power adapters. The company is now able to provide a full range of alternative adapters for the world's major brands of notebook computers.

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