<form id="h9dlj"><span id="h9dlj"><output id="h9dlj"></output></span></form>
<noframes id="h9dlj"><address id="h9dlj"><font id="h9dlj"></font></address>
      <th id="h9dlj"></th><var id="h9dlj"><dfn id="h9dlj"></dfn></var>

        <th id="h9dlj"><dfn id="h9dlj"></dfn></th>

          <form id="h9dlj"><noframes id="h9dlj"><address id="h9dlj"></address>

          <track id="h9dlj"><big id="h9dlj"></big></track>

          ?

          Tel: 0755- 28889315

          Fax: 0755-28889316

          Business Manager: 18002558006 Mr Li

          Technical support: 13632860590 Mr Hu

          E-Mail: huwuzai@126.com

          WeChat: 228923576

          Address: China Shenzhen city Longgang District Community fun Garden Road No. 38

          Home » Q&A » What is the power adapter?
          What is the power adapter?
          Author:handler Time:2016-09-20 08-35-16

           

          The power adapter usually we often said, it English called Power adapter, is to transform the power supply device belongs to a small portable electronic equipment and electronic appliances, its structure generally comprises a shell, a power transformer and rectifier circuit, according to the current classification can be divided into AC output and DC output in accordance with the connection type; can be divided into plug wall and desktop. Widely used in tablet PCs, notebook computers, POS machines, cellular phones and other devices.

          In reality we are exposed to the power adapter is switching power supply. The switching power supply by means of modern electronic technology, the control switch turn-on and turn off time ratio, maintain a stable output voltage power supplies, switching power supply adapter from the general pulse width modulation (PWM) control IC and MOSFET which benefits: high conversion efficiency, small volume, can work in a wide voltage range. Inadequate: the difficulty of the maintenance of the fault occurs, the greater the power circuit interference.

          The principle of the power supply adapter is to use the principle of the unstable power supply to convert the circuit into a constant voltage DC power which is needed by the notebook computer, and the power supply and the charging of the notebook computer. Simply to say that the 22V is the exchange of electricity to low voltage direct current, the normal operation of electronic equipment to provide a stable power. This conversion circuit, there must be a protective circuit.

          Through the power adapter work principle can know why the power adapter in the work is easy to heat, so when use should pay attention to ventilation and heat, protect the power adapter.


          久久一本综合,国产一级牲交高潮片,国产手机在线播放色欲,中文字幕九热精品视频在线
          <form id="h9dlj"><span id="h9dlj"><output id="h9dlj"></output></span></form>
          <noframes id="h9dlj"><address id="h9dlj"><font id="h9dlj"></font></address>
              <th id="h9dlj"></th><var id="h9dlj"><dfn id="h9dlj"></dfn></var>

                <th id="h9dlj"><dfn id="h9dlj"></dfn></th>

                  <form id="h9dlj"><noframes id="h9dlj"><address id="h9dlj"></address>

                  <track id="h9dlj"><big id="h9dlj"></big></track>