However, it functions the same way that a power supply does. It has an input power connection to receive energy (in the form of current) and an output which gets connected to an electrical/electronic load (in this case, mobile devices). … Continue reading →

Yes you can use a battery charger as a power supply. A battery charger is effectively a power supply. As long as the battery charger can provide the sufficient amount of voltage and current to the electrical load, it can … Continue reading →

Laptops do use SMPS as power supply and it’s called Power Brick. Power Brick is a compact form of the power supplies used in desktop PC. Unlike desktop power supply, laptop power supplies don’t need to be powerful. A 65W … Continue reading →

DC is more efficient than AC at high voltages and has lower line losses. The line has lower losses, no reactive power is needed, and the power flow can be fully controlled. The reason that Edison DC lost the war … Continue reading →

The charging stations provide high-power direct-current (DC) charging power directly to the battery, bypassing the internal charging power supply. In September 2017, Tesla announced the availability of urban Superchargers. Is Tesla wall charger AC or DC? When a Wall Connector … Continue reading →

A very small user of power is a 1.2 watt LED light running on a 12 volt power source will use 1.2W / 12V = 0.1 amps. Therefore a 100ah (amp hour) battery will last for 1000 hours. A slightly … Continue reading →

For United Kingdom the associated plug type is G, which is the plug that three rectangular pins in a triangular pattern. United Kingdom operates on a 230V supply voltage and 50Hz. What plugs are used in the UK? UK appliances … Continue reading →

DC stands for ‘direct current’ which means the current only flows in one direction. Batteries and electronic devices like TVs, computers and DVD players use DC electricity – once an AC current enters a device, it’s converted to DC. A … Continue reading →

USB-C boasts much faster charging and can deliver power at up to 100 watts at 20 volts. This means that larger devices can now be charged from USB, including laptops and tablets. Does USB-C provide faster charging? USB-C PD can … Continue reading →

A 5V adaptor cannot drive a 12V device. Also, an adaptor of voltage higher than the device needed would damage your device. Can I power a 12V motor with 5V? Probably not. The motor will not have much torque, if … Continue reading →

So turning off empty sockets doesn’t really do anything. But let’s take a look at what happens when you leave something plugged in and switched on. According to the Energy Saving Trust, any switched on charger that is plugged in … Continue reading →

A typical plug-in air freshener uses 4 watts. Not very much, but left on permanently, this will use 35 units of electricity per year. Not to mention the expensive refills, and that houses with these devices tend to have one … Continue reading →

The Jack plug was invented for use in telephone switchboards in the 19th century and is still widely used, both in its original 6.3 mm (1/4″) size and in miniaturized versions 3.5 mm (1/8″) and 2.5 mm (3/32″). Are 1/8 … Continue reading →

In much of the world, a voltage (nominally) of 230 volts and frequency of 50 Hz is used. In North America, the most common combination is 120 V and a frequency of 60 Hz. Other combinations exist, for example, 230 … Continue reading →

Second, lightning is a direct current (DC) that would require it to be converted to alternating current (AC) so it could be used for lights and other equipment. Is lightning considered AC or DC? In a lightning, the current flow … Continue reading →