FAQ

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Q

What is a switching power supply in FA1029?


A

Switching power supply is a type of power supply that utilizes modern power electronics technology to control the time ratio of switch on and off, and maintain a stable output voltage. Switching power supply is generally composed of pulse width modulation (PWM) control IC and MOSFET. Compared to linear power supplies, the cost of both increases with the increase of output power, but their growth rates vary. The cost of a linear power supply is actually higher than that of a switching power supply at a certain output power point, which is called the cost reversal point. With the development and innovation of power electronics technology, switching power supply technology is also constantly innovating, and this cost reversal point is increasingly moving towards the low output power end, providing broad development space for switching power supply.

Q

What are the drawbacks of FA1028's linear power supply technology today?


A

The linear power supply, known as the "energy vampire" due to its energy consumption characteristics, uses outdated technology from the early 19th century that is no longer compatible with current innovation. Linear transformers require the use of large iron cores and a large number of turns of copper wire to convert the conventional 50/60 cycle household AC voltage into a safer low voltage for our household appliances and electronic devices. As a result, their volume becomes exceptionally large, often occupying the position of two sockets on a wall outlet board or patch panel. Moreover, linear power supplies do not have intelligent components, making it impossible to identify whether the device is in standby or sleep mode, thereby preventing loss reduction. As a result, the power they consume far exceeds the actual required watts. You can test it by touching one of the large volume linear power supplies plugged into the wall socket. It feels very hot... this is just wasted power!

Q

What are the advantages of FA1027 switching power supply?


A

The second generation power supply, also known as switch power supply or simply "switch", appeared in the late 1960s. Engineers have found that they can reduce the volume and weight of transformers by increasing the AC frequency from 50 or 60 cycles per second to thousands of cycles per second, and significantly improve the efficiency of transformers (reducing energy waste in the form of heat dissipation)

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