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it controls the amount of voltage that is flowing in a circuit.

To be more accurate, a voltage regulator provides a limiting mechanism to an electrical or electronic power source.

In the case of modern automotive alternators the voltage regulator "regulates" the output from the alternator by limiting the current flowing through the rotating field assembly inside the alternator. The weaker the electromagnetic field of this "rotor" the lower the output (both current and voltage) of the alternator.

When the electrical load on the alternator is low the regulator reduces the field strength based on it's set upper voltage limit. When the load increases beyond the capacity of the "limited" output the voltage drops (the load is kind of "shorting out" the power from the alternator) and the regulator allows the field current (and therefor the output of the alternator) to rise until the voltage reaches that "upper limit" again and so on.

Hope this helps

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14y ago
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6mo ago

A voltage regulator is a device that maintains a constant output voltage level regardless of changes in input voltage or load conditions. It ensures that electronic devices receive a stable and reliable voltage supply to prevent damage and ensure optimal performance.

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13y ago

A voltage regulator is an electrical regulator designed to automatically maintain a constant voltage level. A voltage regulator may be a simple "feed-forward" design or may include negative feedback control loops. It may use an electromechanical mechanism, or electronic components. Depending on the design, it may be used to regulate one or more AC or DC voltages.

Electronic voltage regulators are found in devices such as computer power supplies where they stabilize the DC voltages used by the processor and other elements. In automobile alternators and central power station generator plants, voltage regulators control the output of the plant. In an electric power distribution system, voltage regulators may be installed at a substation or along distribution lines so that all customers receive steady voltage independent of how much power is drawn from the line.

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How does a series regulator maintain the output voltage at a constant level?

A series regulator maintains output voltage by adjusting its resistance to compensate for changes in input voltage or load current. It compares the output voltage to a reference voltage and regulates the voltage by adjusting the series pass device to ensure the output remains constant. This feedback loop continuously monitors and adjusts the output voltage, providing a stable output despite variations in input or load.


What do you do to change the voltage of a 12 volt battery to a 6 volt output?

To change the voltage of a 12-volt battery to a 6-volt output, you can use a voltage regulator or a step-down transformer. A voltage regulator will reduce the voltage to the desired 6 volts, while a step-down transformer will step down the voltage from 12 volts to 6 volts. Both options will help you achieve a stable 6-volt output.


What type of a device is used to increase or decrease the voltage in an electric circuit?

A transformer is used to increase or decrease the voltage in an electric circuit. It consists of two or more coils of wire that are used to transfer electrical energy by mutual induction between the coils.


How do you polarize a 6 volt regulator?

To polarize a 6V regulator, connect the positive terminal of the 6V power supply to the input pin of the regulator and the negative terminal to the ground pin. This ensures the correct direction of current flow through the regulator, allowing it to regulate the voltage properly. Make sure to double-check the datasheet of the specific regulator for any additional manufacturer recommendations.


What is the name of the device that controls the amount of electricity entering the rotor?

The device that controls the amount of electricity entering the rotor is called a voltage regulator. It helps maintain a stable voltage output to the rotor to ensure proper operation of the electrical system in the device.

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