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A large positive charge at the face plate of a CRT; in the order of 14,000 to 31,000 volts, is necessary to attract the electron beam from the neck of the picture tube to the front surface of the tube. There is a separate power supply in most CRT based viewing devices that supply this voltage. Large CRT's usually require higher voltages. High light outputs on any CRT requires more power from the high voltage supply than low light outputs. High voltage is also known as Extremely High Tension, EHT. VE T11.
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Why is there change in terminal voltage as load applied to a three phase alternator?
The AVR (Automatic Voltage Regulator) control the DC field voltage to the rotor of the alternator, as soon as higher load is demanded from the alternator, the AVR output voltage go higher, hence, a higher AC voltage on the output of the alternator. If the voltage go to high then the AVR is faulty.
Why is a Schmitt trigger called a regenerative comparator?
A Schmitt Trigger is a comparator, because it compares its input voltage to a "threshold" voltage, but it has _two_ threshold voltages (the upper and lower trigger voltages), and which threshold voltage is used depends on the output state. If the input voltage is higher than the upper trigger voltage, the output will be high (for a non-inverting Schmitt trigger). In this state, the input is compared to the lower threshold voltage, so the input now has to go below the lower threshold voltage before the output will go low. The threshold voltage depends on the output state, such that a high output selects the lower threshold voltage, and a low output selects the upper threshold voltage. This can be visualised as using a fixed threshold but adding a small voltage (the difference between the upper and lower threshold voltages, also called the hysteresis voltage) to the input voltage before it is compared. This small added voltage is high when the output is high, and low when the output is low. A small amount of the output voltage is effectively being added to the input voltage before it is compared to a fixed threshold. This is positive feedback, also called regenerative feedback. So a Schmitt trigger operates as a voltage comparator, and a small amount of the output is added to the input, so it uses positive or regenerative feedback.
How do you increase output voltage of a alternator?
The voltage output is controlled by the voltage regulator. Check to see if you are getting a DC field voltage. On the voltage regulator there are terminals to different pieces of equipment on the machine. Look for the terminals that are designated F1 and F2. These should have a DC voltage on them. Also look for a potentiometer that controls the field voltage. Turn it one way and the voltage will go down and turned the other way the voltage will go up. Make sure that this potentiometer is in the correct position to allow voltage to the field coils.
What is Automatic stabilizer?
Automatic voltage stabilizer is a electronic device which has transformer and other control circuit for controlling output ac voltage. it controls automatically the output voltage to a certain voltage defined by designer and does not require manual changing when voltage go up or down. it is used in refrigerator and also on home equipment for safety purpose.
Will a 2002 chrysler voyager still run if you take the battery cables off?
Maybe. The engine computer is the voltage regulator, with the battery disconnected it may not be able to control the alternator output voltage correctly. This could cause it to go low or high.Maybe. The engine computer is the voltage regulator, with the battery disconnected it may not be able to control the alternator output voltage correctly. This could cause it to go low or high.
Why voltage of transformer go up beyond the set voltage when carrying out transformer test?
Transformers without regulators in them will output voltage depending on the voltage coming in. For instance if you have a 230v to 110v transformer then you will have a ratio of 23:11 this means for every 23 turns in the transformers primary side you will get 11 turns on the secondary, so if you have an input voltage of 247v then the output voltage will be around 118v, conversly if you have an inout voltage of 221v then the ouplut voltage will be around 106v.
What is the line voltage given the load voltage is 2000v and voltage regulation is 2 percent?
The line voltage in the usa is 120V if the 2000V is for a tube in a microwave oven it generally depends on a transformer and rectifier so the line voltage will go down about 2% to retain the output
Is diode voltage controlled device?
RPS is only the voltage& power controlled device. it can only used for set the input for our wish A device which can change its output according to the voltage supplied to it is called a voltage controlled device.ex. a voltage controlled current source,or a field effect transistor. In a voltage controlled current source the output current changes as the voltage supplied to it changes.
Why does the battery charging light not go off after starting the engine?
Probably indicates an undercharge condition. Check the alternetor output voltage and check for good connections..
What is automatic voltage stabilizer?
An Automatic Voltage Regulator (AVR) is a special piece of electrical equipment which is designed to maintain its output voltage at an almost constant value even though:the input voltage supplied to it may vary considerably within the voltage range for which the AVR was designed andthe amperage or current drawn by the load it is serving may vary considerably within the amperage range for which the AVR was designed.
How much the prices of engine to cik go crt?
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What is the purpose of voltage regulators?
Voltage regulators are intended to keep a certain voltage level, which is important for most electronics to run properly. Without a voltage regulator, if an electronic, such as a computer, receives too much voltage then it can fry the components.Controls output of alternator so battery does not over or undercharge Should control voltage range from (when engine running) 13.8-14.2 volts Without voltage regulator: Voltage could go to 18-24 volts causing electrical components to burn out
