TYPE VOG - Precise
... PRECISE PRECISE VOLTAGE TRANSFORMER TYPE VOG PRECISE Voltage Transformers model type VOG are connected in between phase to earth to provide a proportional low voltage on secondary side. They are design to perform the following functions: 1. Measure/monitor voltage 2. Electrically isolate the instrum ...
... PRECISE PRECISE VOLTAGE TRANSFORMER TYPE VOG PRECISE Voltage Transformers model type VOG are connected in between phase to earth to provide a proportional low voltage on secondary side. They are design to perform the following functions: 1. Measure/monitor voltage 2. Electrically isolate the instrum ...
Triangle to Sine Conversion (Nonlinear Function Fitting)
... by applying a triangular waveform. This is illustrated below; the triangular wave is applied as the base signal of the differential pair, with the peak values ±Vm selected appropriately . If the periodic function so formed is expanded in a Fourier series that series contains only sine terms since th ...
... by applying a triangular waveform. This is illustrated below; the triangular wave is applied as the base signal of the differential pair, with the peak values ±Vm selected appropriately . If the periodic function so formed is expanded in a Fourier series that series contains only sine terms since th ...
Document
... V is for Potential Difference (Volts) I is for Current (Amperes) R is for Resistance (Ohms) ...
... V is for Potential Difference (Volts) I is for Current (Amperes) R is for Resistance (Ohms) ...
Zener diodes are designed to have a specific reverse voltage
... One method of obtaining a split supply from a non center tapped transformer, using zeners . This method may be a convenient solution in some applications but bare in mind that this will be suitable for relatively Low-Current circuits only. ...
... One method of obtaining a split supply from a non center tapped transformer, using zeners . This method may be a convenient solution in some applications but bare in mind that this will be suitable for relatively Low-Current circuits only. ...
Section B9: Zener Diodes
... it’s going to give us an absolutely perfectly constant voltage as long as we don’t exceed some simple power rating, right? Well, not exactly (big surprise)... Actually, the zener is pretty well behaved and is extremely useful if used correctly. However... to account for the fact that the curve is n ...
... it’s going to give us an absolutely perfectly constant voltage as long as we don’t exceed some simple power rating, right? Well, not exactly (big surprise)... Actually, the zener is pretty well behaved and is extremely useful if used correctly. However... to account for the fact that the curve is n ...
Simple electrical engineering projects
... Last year some students tried to build a motor to this design, using an air-cored coil suspended by wire ends. Mostly these don’t work because • The magnetic field path through the air is too long, and • Its hard to get the coil balance exactly neutral • The rotor has very little inertia Also you ca ...
... Last year some students tried to build a motor to this design, using an air-cored coil suspended by wire ends. Mostly these don’t work because • The magnetic field path through the air is too long, and • Its hard to get the coil balance exactly neutral • The rotor has very little inertia Also you ca ...
PROJEC
... • The Photo-detector use LM339 voltage comparator, integrated circuits to detect the change in voltage across the sensor. the circuit is configured to have the LED's turn on when the sensor element is dark (covered by a train.) The LED's can also be made to turn off when a train is detected. • The ...
... • The Photo-detector use LM339 voltage comparator, integrated circuits to detect the change in voltage across the sensor. the circuit is configured to have the LED's turn on when the sensor element is dark (covered by a train.) The LED's can also be made to turn off when a train is detected. • The ...
(p.946) Ch 33 Alternating Current Circuits 33.3
... CT1: The phasor diagrams below represent three oscillating voltages having different amplitudes and frequencies at a certain instant of time t = 0. As t increases, each phasor rotates counterclockwise and completely determines a sinusoidal oscillation. At the instant of time shown, the instantaneou ...
... CT1: The phasor diagrams below represent three oscillating voltages having different amplitudes and frequencies at a certain instant of time t = 0. As t increases, each phasor rotates counterclockwise and completely determines a sinusoidal oscillation. At the instant of time shown, the instantaneou ...
Document
... synthesise the output voltage vector by turning off both switches in a leg. Accordingly, new leg switching states are defined. A unipolar method is used to achieve discontinuous pulse-width modulation. The complex reference vector is located by one active vector and two newly defined leg switching s ...
... synthesise the output voltage vector by turning off both switches in a leg. Accordingly, new leg switching states are defined. A unipolar method is used to achieve discontinuous pulse-width modulation. The complex reference vector is located by one active vector and two newly defined leg switching s ...
Topic 2 – Controlling and using electric currents
... component and those coming out – they’re always placed in parallel with the component (i.e on a separate branch): o E.g in the diagram below, the voltmeter is measuring the potential difference (i.e the difference in energy between electrons going in and those coming out) across the light bulb o The ...
... component and those coming out – they’re always placed in parallel with the component (i.e on a separate branch): o E.g in the diagram below, the voltmeter is measuring the potential difference (i.e the difference in energy between electrons going in and those coming out) across the light bulb o The ...
E i ill i I2
... ampli?er is connected to the emitter of the associated transistor. In this way only the input voltage U 5 appears across the resistors R1 and R2; the base-emitter voltages are thus compensated for. tors as arranged are Darlington transistors. In principle, the circuit shown in FIG. 2 is identical to ...
... ampli?er is connected to the emitter of the associated transistor. In this way only the input voltage U 5 appears across the resistors R1 and R2; the base-emitter voltages are thus compensated for. tors as arranged are Darlington transistors. In principle, the circuit shown in FIG. 2 is identical to ...
Node-Voltage Analysis
... Resistors connected in series… When JUST two elements connect at a SINGLE node, they are said to be in series and series-connected elements carry the SAME CURRENT (why? KCL) ...
... Resistors connected in series… When JUST two elements connect at a SINGLE node, they are said to be in series and series-connected elements carry the SAME CURRENT (why? KCL) ...
RC Circuits tutorial
... Solving the loop equation – 6. Rewrite the loop equation from part 1 as a first order differential equation. The general form will usually have all the terms with the variable on one side. You should be able to derive the solution to this equation by separating the variables and integrating. It is n ...
... Solving the loop equation – 6. Rewrite the loop equation from part 1 as a first order differential equation. The general form will usually have all the terms with the variable on one side. You should be able to derive the solution to this equation by separating the variables and integrating. It is n ...
Electricity
... There are two main reasons why parallel circuits are used more commonly than series circuits: 1) Extra appliances (like bulbs) can be added without affecting the output of the others 2) If one appliance breaks it won’t affect the others either ...
... There are two main reasons why parallel circuits are used more commonly than series circuits: 1) Extra appliances (like bulbs) can be added without affecting the output of the others 2) If one appliance breaks it won’t affect the others either ...
Electricity
... There are two main reasons why parallel circuits are used more commonly than series circuits: 1) Extra appliances (like bulbs) can be added without affecting the output of the others 2) If one appliance breaks it won’t affect the others either ...
... There are two main reasons why parallel circuits are used more commonly than series circuits: 1) Extra appliances (like bulbs) can be added without affecting the output of the others 2) If one appliance breaks it won’t affect the others either ...
... since I VR R . Since I is maximized, the magnitude of both VC and VL are individually at maximum, although 180o out of phase with each other. When the frequency is not near the resonant frequency, the phasors representing VC, and VL do not cancel, so VR is less for a given Vs. It is convenient to ...
Power Factor: Electricity Behaving Badly (Part One)
... just unusable by the motor and all other electrical devices in the same circuit! So why can’t a motor use all of the available power in a circuit and, more importantly, why does it really matter? Let’s investigate. The mystery begins with the difference in the way AC power is delivered and measured. ...
... just unusable by the motor and all other electrical devices in the same circuit! So why can’t a motor use all of the available power in a circuit and, more importantly, why does it really matter? Let’s investigate. The mystery begins with the difference in the way AC power is delivered and measured. ...
P27
... 1. Does the insertion of an ammeter into a circuit to measure the current in that circuit affect the value of the current to be measured? Is it necessary for an ammeter to have a low resistance or a high resistance? Explain. 2. Does the insertion of a voltmeter into a circuit to measure the voltage ...
... 1. Does the insertion of an ammeter into a circuit to measure the current in that circuit affect the value of the current to be measured? Is it necessary for an ammeter to have a low resistance or a high resistance? Explain. 2. Does the insertion of a voltmeter into a circuit to measure the voltage ...
Current source
A current source is an electronic circuit that delivers or absorbs an electric current which is independent of the voltage across it.A current source is the dual of a voltage source. The term constant-current 'sink' is sometimes used for sources fed from a negative voltage supply. Figure 1 shows the schematic symbol for an ideal current source, driving a resistor load. There are two types - an independent current source (or sink) delivers a constant current. A dependent current source delivers a current which is proportional to some other voltage or current in the circuit.