Adapter - a multi-valued word, which means a lot of accessories for technical devices.
How to use the adapter depends on what it is intended for.
Network adapter - power supply, structurallyCombined with a power plug. The output voltage of this device must correspond to that for which the load is calculated, and the maximum permissible output current is not less than the load consumed. Also pay attention to the type of plug and the polarity of the voltage on its contacts. For cylindrical plugs, polarity is often indicated on the adapter and on the load - they must match. Do not use heavy-duty power supplies directly in a loose outlet, use extension cords.
To insert a memory card of the same size in theA device designed for cards of a different format uses an adapter consisting of two connectors connected by conductors. There is nothing electronic in it. Today, the most common adapters for installing Micro SD cards in devices designed for full-size SD cards. Install the card in the adapter, and then the adapter along with it - into the device, and everything will work the same as with a full-sized SD card.
Adapters for pairing different typesConnectors are also called adapters. Such an accessory is useful, for example, for connecting a VGA monitor to a video card with a DVI output, if analog signals are output to it. Also, using the appropriate adapter, you can connect headphones with a 3.5 mm plug to a device that has a 6.3 mm jack, or vice versa. Correctly choose such an adapter: to connect to a stereo output of stereo headphones, it should be three-pin, and for connecting a monophonic microphone to a monophonic input, it can be both two- and three-pin.
Adapters for power plugs allow you to turn onPlugs with thick pins into sockets with holes of small diameter. Note that many of them start to overheat at a current of more than 4 A. Do not use them together with powerful devices, especially for a long time. Also remember that the device remains ungrounded when using such an adapter.
The adapter is also called an expansion board,Installed in the motherboard slot. Today, almost all peripherals are integrated into the motherboard or performed as external devices connected via USB. Exceptions are video adapters, and then only powerful ones. If you do not need significant GPU performance, use a video card built into the motherboard. And if you can not do without a separate video card, do not forget to periodically carry out its prevention: lubricate the fan, clean the radiator, change the thermal grease.
Another type of device, called adapters -Pickups. They are divided into guitar and intended for use in record players for vinyl records. In both cases, select the correct amplifier input to connect the adapter. It must have an input impedance close to the output impedance of the amplifier, and be designed for an amplitude close to that developed by the adapter. Sometimes it is required and coordination of amplitude-frequency characteristics (AFC). If there is no suitable input on the amplifier, the amplitude of the signal must either be reduced by an external attenuator (with an excess input sensitivity) or increased by an external preamplifier (if the input sensitivity is insufficient).