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A variable power supply is one whose output voltage (or current) can be adjusted and therefore set to a desired figure. They are used in development and design odf circuits, eliminating the need for possibly many power supplies of different output voltages.
Once a circuit is connected to it, the output would not normally be changed.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoA power supply can be made variable by using a variable resistor in the the supply line.
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What is a Variable 0 - 12V dc power supply?
A variable power supply has a control to adjust the DC output voltage from 0 to 12 volts. It is used for testing electric project's such as amplifiers and other electric devices. It can be used to replace other fixed voltages power supplies such as the srandard 3 volt, 5 volt, 9 volt and 12 volt units.
Why does an operational amplifier need a power supply?
It doesn't. You can make a differential amplifier with a single power supply.
Can you use a power supply with more amps and not fry the unit?
you will need to be allot more specific on what you are trying to do here. what is the difference in amps. what is the device Generally speaking it is good practice to only use the power supply that the device is rated for. the biggest issue you will have is this Power = voltage * current (simple version) if the power supply you had was 12v at 1 amps then you ca supply 12Watts of power if the power supply you had was 12v at 10 amps then you can supply 120Watts of power Just because you can supply 10 amps, and all you need is one, means your power supply is bigger than it needs to be. The device will draw what it is intended to draw. Just make sure the voltage matches.
Full form of DC power supply?
DC Power is Direct Current Power Supply.
What are advantages power supply in computer?
The power supply converts the high voltage (e.g. 120VAC in US, 240VAC in Europe) alternating current house electricity supply down to the various different low voltage direct current supplies needed by different devices that make up the computer. These low voltage direct current supplies are tightly regulated in the power supply circuitry to prevent transients in the house electric supply from perturbing the computer's electronics as well as to compensate for variations in power demand as the different devices that make up the computer operate.
What are the advantages and disadvantages of variable power supply?
A: A variable power supply has no disadvantage since it can replace a fix power supply. The disadvantage will rest with the additional cost to make one.
What are the applications of variable DC power supply?
variable dc supply are used to get desired amount of dc supply
What is the price of the cheapest variable power supply?
The cheapest price the writer was able to obtain for a variable power supply was $45.45 for those customers searching in Canada. If one wants to make a home-made variable power supply, it is possible to buy all the needed parts for about $15.00
Applications of variable DC power supply?
Variable dc supply is applicable in loads that are variable.
Where can one purchase a variable DC power supply?
You can purchase a variable DC power supply online from retailers such as Amazon. Once on the website, type "Variable D/C Power Supply" into the search field at the top of the page and press enter to bring up the items.
What is variable DC supply?
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...
How do you reduce a 14 a c volt power supply to a variable a c power supply of between 4 and 8 volts?
See related link
I want to make power supply from 220 V AC to 300 V DC variable adjustable someone please help me or give me a link of workable circuit?
You could try using a simple variac to make the power supply from 220 V AC to 300 V DC variable adjustable. This will work just fine if you don't have a workable circuit.
Can you use a potential divider for obtaining variable DC supply from a fixed AC supply?
Power supply providing constant D.C. output voltages from variable A.C. input voltagesThe novel power supply for generating a constant d.c. voltage from a variable a.c. voltage supply line, includes a plurality of switch circuits (10, 12) which monitor voltage levels on respective secondary windings (L,M,H) of a power transformer and as voltage levels change, one of the plurality of switch circuits is selected to charge a capacitor (C1) which provides a range of d.c. voltages which are processed to provide the constant d.c. voltage.
What is the best choice for a replacement power supply for power supply ratings?
You need to make sure you buy a power supply that is rated for your motherboard. Common ratings are 350w, 400w and 500w.
What is a Variable 0 - 12V dc power supply?
A variable power supply has a control to adjust the DC output voltage from 0 to 12 volts. It is used for testing electric project's such as amplifiers and other electric devices. It can be used to replace other fixed voltages power supplies such as the srandard 3 volt, 5 volt, 9 volt and 12 volt units.
How is water a power supply?
Water is a power supply because it is used in power plants. The water is inside the boiler and the boiler is heated to make the water turn into steam. The steam is what makes the power.
