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Dongguan Jiuqi Industrial Co., Ltd.
Contact: Mr.liang
Mobile: +86-13122876672
Tel: 0769-81818179
Fax: 0769-81806179
Address: Kongwu District, Guxia, Shipai town, Dongguan city
Postal Code: 523339
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E-mail:haulwee@vip.163.com
What is a power adapter?
| What is a power adapter? |
| Any electronic device needs a dc power adapter to supply circuit work, especially for electronic products powered by power grid adaptor. In order to adapt to the fluctuation of power grid voltage and the change of working state of the circuit, it is more necessary to have a dc stabilized power adapter to adapt to the change of power grid voltage and load. Switching voltage regulator adaptor realizes voltage transformation and voltage stabilization by changing dc into high frequency pulse and then carrying out electromagnetic transformation. The linear regulator is a direct series of a controllable adjusting element to the input dc voltage for voltage transformation and voltage stabilization, essentially equivalent to a series of variable resistance. Switching regulator adapter is efficient and can boost or lower the voltage. Linear regulator adapters can only buck and are inefficient. Switching regulator produces high frequency interference, while linear regulator has no interference. Each has its advantages and disadvantages. In recent years, with the development of electronic technology and people's research on how to improve the conversion efficiency of stabilized voltage power adapter, enhance its adaptability to the power grid, and reduce its size and weight, power adapter came into being. In the seventy s, the power adapter is applied in the domestic television receiver, now has been widely used in color TV, camcorder, computer, communications systems, medical apparatus and instruments, meteorological and other industries, and gradually replaced the traditional linear regulated power supply series adapter, make the whole machine performance, efficiency and reliability have been further improved. The common series stabilized power adapter is equipped with the power adapter transformer, which has the advantages of stable output voltage, small ripple, but small voltage range and low efficiency. The output voltage of the shunt regulator is very stable, but the load capacity is very poor. |
| | release time：2019.09.16 Source： |
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Contact: Mr.liangTel:+86-13122876672Tel:0769-81818179Fax:0769-81806179 E-mail:haulwee@vip.163.com
Address: Kongwu District, Guxia, Shipai town, Dongguan city, China Zipcose:523,339
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