The difference between a transformer and a power supply lies in their functions and components. A transformer is an electrical device that changes the voltage level of alternating current (AC) through electromagnetic induction. It can increase (increase) or decrease (decrease) the voltage depending on the turns ratio of its windings. A power supply, on the other hand, converts electrical energy from a source into a usable form for electronic devices, providing both voltage regulation and current control.
It often incorporates a transformer as one of its components to adjust the voltage before further processing.
A power supply and a transformer are not the same thing. While a transformer is primarily used to change the voltage level of alternating current, a power supply encompasses a wider range of functions. A power supply includes additional components such as rectifiers to convert alternating current to direct current, filters to smooth the output, and regulators to maintain a constant voltage.
A transformer may be part of a power supply, but the power supply performs more comprehensive functions to provide stable, regulated power output.
A transformer power supply is a type of power supply that uses a transformer as the key component to change the voltage level of the input source to the desired output level.
After the transformer adjusts the voltage, other components in the power supply, such as rectifiers, filters, and regulators, process the electrical energy to provide a stable, regulated output suitable for powering electronic devices .
Many chargers include a transformer in their design. In a charger, the transformer steps down the mains voltage to a lower AC voltage suitable for the device being charged.
After the voltage is reduced by the transformer, the charger usually includes additional circuitry such as rectifiers and voltage regulators to convert the AC voltage into a stable DC voltage required by the device.
A power supply works by converting electrical energy from a source into a regulated output suitable for powering electronic devices. This usually starts with a transformer that adjusts the voltage level. This is followed by rectification, where alternating current is converted to direct current.
The DC voltage is then filtered to smooth out any ripples, and the regulators maintain a constant and precise output voltage. The power supply ensures that the connected device receives the correct voltage and current, improving performance and preventing damage.