Thứ Bảy, 8 tháng 7, 2017

Regulate Volumes Of Your Devices Easier With A Portable Voltage Divider

By Melissa Williams


When you are designing a piece of audio equipment, one of your major concerns is how you get to regulate or control its volume. In this case, a potentiometer which is a variable resistor may be used for specific adjustments. The device used in this situation helps you gain controls for any variable.

In some cases, devices which involve circuitry and an equation are produced as an aid to these situations. Known as the most fundamental circuit, this tool is called a Voltage Divider. It is a passive circuit which helps reduce the large volumes of your audio equipment or other electronics.

With three variables namely two resistors and an initial voltage, you can already turn a large Volt count into a smaller one which is considered as the output Volt. To simplify this, you could understand the process better using a certain equation. This equation is basically a representation of the Ohms law which observes a direct proportion relationship between a current and the difference of ends. Having said so, it is understood that as the current is reduced by the attached divider in between two resistances, the voltage released is also lowered.

There are two essential parts of this divider, one is the circuit and the other is the equation. The circuit pertains to a source of the Volt which goes across two resistors. For the equation, you have to assume three values namely input voltage, resistor one R1, and resistor two R2. The output value could be found by taking the ratio between R1 and R2.

Knowing these essentials, you may realize that you can also create your own portable divider. For this, you have to prepare the leads, resistors, alligator clamps, snap on connectors, a voltmeter and a standard 9V battery. This is the highest possible amount of V a simple electronic can handle. Some would limit it to a 5V only.

Begin by connecting the leads with an alligator clamp. One should contain the red lead resistor with 10 Ohms and the other should contain the black one which has 20 ohms. Then after connecting these leads, use the free end to twist these two together.

Over the twisted leads, ensure a solid twist by clamping the last alligator clamp on it. Then using another connector, place the red wire on the positive terminal of the battery and place the black one in the negative terminal. Hold similar charges together of positives and negatives of your voltmeter lead and clamps and turn your meters on.

As you can see from 9V, your voltage goes down to 3V. When this happens, the positive terminal of the circuit is now the one where the twist is located. Meanwhile, the negative terminal is retained as the negative source.

Before going through this procedure, unhook the end of the divider. In some case, you have to unplug your battery to avoid draining. For this procedure, your 9V energy source does not really show a lot of danger. But, when working with some other electronics, make sure to unplug the wires from wall outlets as this may cause electrocution.




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