Adapter is a polysemantic word that denotes a variety of accessories for technical devices. How to use the adapter depends on what it is intended for.
Instructions
Step 1
AC adapter is a power supply unit structurally combined with a mains plug. The output voltage of this device must correspond to that for which the load is designed, and the maximum permissible output current must not be less than that consumed by the load. Also pay attention to the type of plug and the polarity of the voltage on its contacts. For cylindrical plugs, the polarity is often marked on the adapter and on the load - they must match. Do not plug heavy power supplies directly into loose outlets, use extension cords.
Step 2
To install a memory card of one format in a device designed for cards of a different format, use an adapter consisting of two connectors connected by conductors. There is nothing electronic in it. Today, the most common adapters are for inserting Micro SD cards into devices designed for full-size SD cards. Insert the card into the adapter, and then the adapter along with it into the device, and everything will work just like with a full-size SD card.
Step 3
Adapters for mating different types of connectors 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. You can also use the appropriate adapter to connect headphones with a 3.5 mm plug to a device with a 6, 3 mm jack, or vice versa. Choose the right adapter: to connect to the stereo output of stereo headphones, it must be three-pin, and to connect a mono microphone to a mono input, it can be either two- or three-pin.
Step 4
Power plug adapters allow plugs with thick prongs to be plugged into small-bore receptacles. Please note that many of them start to overheat at more than 4 A. Do not use them with powerful devices, especially for a long time. Also remember that the instrument is not grounded when using such an adapter.
Step 5
An adapter is also called an expansion card that is installed in a slot on the motherboard. Today, almost all peripherals are integrated into the motherboard or performed in the form of external devices connected via USB. The exception is video adapters, and then only powerful ones. If you do not need significant GPU performance, use a video adapter built into the motherboard. And if you cannot do without a separate video card, do not forget to periodically carry out its prevention: lubricate the fan, clean the radiator, change the thermal paste.
Step 6
Another type of device called adapters are pickups. They are divided into guitar and intended for use in turntables for vinyl records. In both cases, choose the correct input of the amplifier for connecting 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 the matching of the amplitude-frequency characteristics (AFC) is also required. If there is no suitable input on the amplifier, then the signal amplitude must either be reduced by an external attenuator (with excessive input sensitivity), or increased using an external preamplifier (if the input sensitivity is insufficient).
