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The output voltage between phases of ac 3 phase supply is 240V?
Wiki User
∙ 10y ago
No, this voltage appears ACROSS individual phases, or BETWEEN a line conductor and the neutral
Wiki User
∙ 10y ago
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What digital multimeter scale should be used when testing the signal from a Hall-effect switch?
You should use the scale that shows correctly your supply voltage. Most Hall-effect switches provide either a logical output or an open-collector output. If the output is logical, you can expect the value to be between 0 and your supply voltage. If the output is open-collector, you must bias the output to your supply voltage with a resistor; otherwise you will always read "0". If biased, the output will be between 0 and the voltage bias. If you are not certain of which type you have, try finding the datasheet on the Internet; otherwise, you can always bias the output to your supply voltage; if you properly choose the resistor, it should not adversely affect the behaviour of the logical-level output. I would suggest trying 1 kOhm with a 5 V supply; this gives a bias current of 5 mA, which most Hall-effect sensors should be able to cope with. There are other Hall-effect sensors that provide linear output, but this answer is about a Hall-effect switch.
Which voltages are supported by a Toshiba power supply?
The input voltage range for the Toshiba power supply is AC 100V - 240V. The output voltage is DC 19V / output current is 4.74A. This power supply comes with a power cord and packaging will state voltage recommended for the product.
When switch is off of power supply output shown on the multimeter is negative voltage from power supply?
Yes.
What voltage is power supply for an AKAI S20?
Output is: DC10V - 800mA - Center Positive
Why is dual supply used for op-amp?
Dual supply arrangement allows for the output voltage to swing both above and below zero volts, and also gives an output of 0V when there is no voltage difference between the two inputs. An op amp can only amplify a signal to its values in the supplied range. If you want to amplify a signal with negative values then you need a negative supply.
What is the phase voltage inside a motor if one phase is lost and what is the voltage between the other two phases?
The phase voltage is usually constant and determined by the supply voltage.
What is an emitter follower?
This is a particular transistor amplifier configuration. In general, the input signal is applied to the base, the collector is connected to a supply voltage, and the output is taken between the emitter and power supply common. One of the characteristics of the emitter follower is the output voltage "follows" the input, but the output is reduced by the Vbe voltage (the voltage drop between base and emitter, approximately 0.7 V for a silicon bipolar transistor).
What happen if the value of the dc supply is changed in amplitude modulation?
The rf output voltage should be proportional to the signal voltage in AM. A change in the DC supply voltage should also cause a proportional change to the rf output voltage.
Why clipping happen for op-amp?
Clipping occurs in the voltage waveform when the input voltage, multiplied by the voltage gain of the op-amp circuit, exceeds the op-amp supply voltage as limited by the output network. The supply voltage and output network, limits the maximum voltage that can be achieved at the output. The op-amp behaves normally within its range of maximum voltage output, and then it is clipped when it reaches the maximum voltage of the circuit.
Can the power supply provide a negative voltage output?
Yes. Depending on the design, the power supply can provide any voltage desired.
What digital multimeter scale should be used when testing the signal from a Hall-effect switch?
You should use the scale that shows correctly your supply voltage. Most Hall-effect switches provide either a logical output or an open-collector output. If the output is logical, you can expect the value to be between 0 and your supply voltage. If the output is open-collector, you must bias the output to your supply voltage with a resistor; otherwise you will always read "0". If biased, the output will be between 0 and the voltage bias. If you are not certain of which type you have, try finding the datasheet on the Internet; otherwise, you can always bias the output to your supply voltage; if you properly choose the resistor, it should not adversely affect the behaviour of the logical-level output. I would suggest trying 1 kOhm with a 5 V supply; this gives a bias current of 5 mA, which most Hall-effect sensors should be able to cope with. There are other Hall-effect sensors that provide linear output, but this answer is about a Hall-effect switch.
What to do if the power supply is too low?
Obtain a power supply that has the correct output voltage that you need.
Which voltages are supported by a Toshiba power supply?
The input voltage range for the Toshiba power supply is AC 100V - 240V. The output voltage is DC 19V / output current is 4.74A. This power supply comes with a power cord and packaging will state voltage recommended for the product.
What is an output voltage swing?
Output voltage swing is defined as the maximum positive or negative peak output voltage that can be obtained without wave form clipping, when quiescent DC output voltage is zero. VOM is limited by the output impedance of the amplifier, the saturation voltage of the output transistors, and the power supply voltages. This is depicted in the figure above. This emitter follower structure cannot drive the output voltage to either rail. Rail-to-rail output op amps use a common emitter (bipolar) or common source (CMOS) output stage. With these structures, the output voltage swing is only limited by the saturation voltage (bipolar) or the on resistance (CMOS) of the output transistors, and the load being driven.Maximum and minimum output voltage is usually a design issue when dynamic range is lost if the op amp cannot drive to the rails. This is the case in single supply systems where the op amp is used to drive the input of an ADC, which is configured for full scale input voltage between ground and the positive rail. Because newer products are focused on single supply operation, datasheets use the terminology VOH and VOL to specify the maximum and minimum output voltage.
When switch is off of power supply output shown on the multimeter is negative voltage from power supply?
Yes.
How do rectifiers and transformers work in a PC power supply?
There is no transformer used in PC power supply. There is rectifier used to rectify or convert AC input voltage into DC output voltage.Transformer based rectifier produces some spikes at the output DC voltage, hencethey uses SMPS (Switch Mode Power Supply) to avoid spikes to the output DC voltage and get a smooth DC voltage.
How do you view output voltage of the power supply?
by d way input only
