DC power supply is used to power the IC's and other active and passive devices.It is provide to amplify the weak signal with the help of amplifiers.
DC Power is Direct Current Power Supply.
dc power supply
In an ideal DC power supply, there is no ripple.
conclusion of dc power supply 9V
DC 12V power supply can convert 110/220V AC power source to 12V DC.
The DC supply may supply power to trip breakers, or to power the protective relays.
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Variable dc supply is applicable in loads that are variable.
Variable DC power supplies are commonly used in electronics labs, production lines, and testing environments. They are used to power and test electronic devices such as electrical components, circuits, and sensors. Variable DC power supplies are also used in research and development for prototyping and experimenting with different voltage levels.
The type of power supply being used (AC or DC) should match the power requirements of the device it will be supplying power to.
Radios use DC power supplies to operate. If a radio is powered from a mains AC supply, a power supply circuit will convert the AC supply to DC. Therefore, a radio may have both a DC and an AC power input but ultimately, the internal circuitry will always use DC.
Variable DC power supply is: Variable - you can adjust it DC - direct current, electrons (electricity) flows in only one direction power supply - power supply Together, it's an adjustable one-way power supply Hope you find this useful...