university of massachusetts dartmouth
... amplitude of 0.707 volts, and is “phase shifted” to the right of the source voltage. First we will determine the amount of phase shift between the two sinusoidal waveforms. Let’s take a look at just the waveform of the input voltage. One cycle of that voltage is contained within 10 horizontal divisi ...
... amplitude of 0.707 volts, and is “phase shifted” to the right of the source voltage. First we will determine the amount of phase shift between the two sinusoidal waveforms. Let’s take a look at just the waveform of the input voltage. One cycle of that voltage is contained within 10 horizontal divisi ...
Inverter Checks
... The most common mode of failure will be an output transistor short between the collector to the emitter. This will be shown by low resistance readings in either direction. When changing an IGBT, change all components in the failed output phase. In some cases there may be two output transistors per p ...
... The most common mode of failure will be an output transistor short between the collector to the emitter. This will be shown by low resistance readings in either direction. When changing an IGBT, change all components in the failed output phase. In some cases there may be two output transistors per p ...
EUP3408 1.5MHz, 800mA Synchronous Step-Down Converter with Soft Start
... The EUP3408 uses a slope-compensated constant frequency, current mode architecture. Both the main (P-Channel MOSFET) and synchronous (N-channel MOSFET) switches are internal. During normal operation, the EUP3408 regulates output voltage by switching at a constant frequency and then modulating the po ...
... The EUP3408 uses a slope-compensated constant frequency, current mode architecture. Both the main (P-Channel MOSFET) and synchronous (N-channel MOSFET) switches are internal. During normal operation, the EUP3408 regulates output voltage by switching at a constant frequency and then modulating the po ...
电路笔记 CN-0034 利用
... (Continued from first page) "Circuits from the Lab" are intended only for use with Analog Devices products and are the intellectual property of Analog Devices or its licensors. While you may use the "Circuits from the Lab" in the design of your product, no other license is granted by implication or ...
... (Continued from first page) "Circuits from the Lab" are intended only for use with Analog Devices products and are the intellectual property of Analog Devices or its licensors. While you may use the "Circuits from the Lab" in the design of your product, no other license is granted by implication or ...
Power Supply Unit: Transformer Skill: Diagnosing a transformer that
... adapt the equipment to the mains voltage difference. External transformers are also called wall transformers. The secondary voltage generated by an external transformer is a three phase AC voltage. A malfunctioning transformer may not have visible damage. Items plugged into a defective transformer m ...
... adapt the equipment to the mains voltage difference. External transformers are also called wall transformers. The secondary voltage generated by an external transformer is a three phase AC voltage. A malfunctioning transformer may not have visible damage. Items plugged into a defective transformer m ...
TS_docx - Instructure
... to the Vth value. Adjust the 10kΩ Trim Potentiometer (pot) to the Rth value with the aid of an Ohmmeter. (It’s best to put the pot in the proto board, connect the Ohmmeter to the center and one of the other terminals, adjust the pot to the right value, and then build the rest of the circuit around i ...
... to the Vth value. Adjust the 10kΩ Trim Potentiometer (pot) to the Rth value with the aid of an Ohmmeter. (It’s best to put the pot in the proto board, connect the Ohmmeter to the center and one of the other terminals, adjust the pot to the right value, and then build the rest of the circuit around i ...
Breadboarding Electronics.ppt
... fabricate a printed circuit board (PCB). • Because of the cost, a PCB should be reserved for the final working design. • As a complement to circuit simulation, breadboarding allows designers to observe how, and if, the actual circuit functions. ...
... fabricate a printed circuit board (PCB). • Because of the cost, a PCB should be reserved for the final working design. • As a complement to circuit simulation, breadboarding allows designers to observe how, and if, the actual circuit functions. ...
Lab 2: Oscilloscopes and Function Generators
... 1. Review the function generator manual in the lab to become familiar with the operation and controls of the function generator. 2. Connect CH 1 of the oscilloscope to the OUTPUT of the function generator. 3. Adjust the settings of the function generator to produce a 5.0 V peaktopeak (pp) si ...
... 1. Review the function generator manual in the lab to become familiar with the operation and controls of the function generator. 2. Connect CH 1 of the oscilloscope to the OUTPUT of the function generator. 3. Adjust the settings of the function generator to produce a 5.0 V peaktopeak (pp) si ...
Chapter 5
... Another Way to state Kirchhoff’s Voltage Law The algebraic sum of all voltages (both sources and drops) around a closed path is zero. ...
... Another Way to state Kirchhoff’s Voltage Law The algebraic sum of all voltages (both sources and drops) around a closed path is zero. ...
AP Physics 2 Electrical Circuits 2015-16
... Find the voltage of the battery, the current leaving the battery, and the power of the 5 ohm resistor. 2A ...
... Find the voltage of the battery, the current leaving the battery, and the power of the 5 ohm resistor. 2A ...
Experiment 2: Kirchhoff`s Law and Superposition Theorem
... Table 1: The Measured Data to verify the Kirchhoff’s Law. 2. Verify the Superposition Theorem • The electric circuit as shown in the Fig. 1. Use single voltage source US1 (turn the switch S1 and S2 to the left), measure the branch current and resistances with ammeter and voltmeter and then record the ...
... Table 1: The Measured Data to verify the Kirchhoff’s Law. 2. Verify the Superposition Theorem • The electric circuit as shown in the Fig. 1. Use single voltage source US1 (turn the switch S1 and S2 to the left), measure the branch current and resistances with ammeter and voltmeter and then record the ...
In this problem, we will find an expression for the... This is valid for all time, especially time before or...
... In this problem, we will find an expression for the current i(t). This is valid for all time, especially time before or after time zero. We will need a plot of this, in addition to the expression. We will being by finding the initial conditions on the inductor, which corresponds to the switch being ...
... In this problem, we will find an expression for the current i(t). This is valid for all time, especially time before or after time zero. We will need a plot of this, in addition to the expression. We will being by finding the initial conditions on the inductor, which corresponds to the switch being ...
Experiment no. 2 NO LOAD AND LOAD TEST ON A DC SHUNT
... mmf while the EMF Ea can give us a measure of the flux so long as the speed remains constant. So the OCC must be conducted at constant (and rated) speed. The OCC should be conducted with the Armature separately excited so that the field winding does not affect the measurement. As is apparent from th ...
... mmf while the EMF Ea can give us a measure of the flux so long as the speed remains constant. So the OCC must be conducted at constant (and rated) speed. The OCC should be conducted with the Armature separately excited so that the field winding does not affect the measurement. As is apparent from th ...
Analog Input Option Card AI-14B
... Introduction: The AI-14B analog input option board is mounted on the drive’s control board and enables the user to interface three separate high-resolution analog input signals, each of which may be either voltage or current (13-bit + sign). These signals can act as a direct replacement for the thre ...
... Introduction: The AI-14B analog input option board is mounted on the drive’s control board and enables the user to interface three separate high-resolution analog input signals, each of which may be either voltage or current (13-bit + sign). These signals can act as a direct replacement for the thre ...
AP Physics - Electric Circuits, DC
... 1. You should understand the behavior series and parallel combinations of resistors so you can: a. Identify on a circuit diagram resistors that are in series or in parallel. Please don’t try to tell the Physics Kahuna that you can’t do this! b. Determine the ratio of the voltages across resistors co ...
... 1. You should understand the behavior series and parallel combinations of resistors so you can: a. Identify on a circuit diagram resistors that are in series or in parallel. Please don’t try to tell the Physics Kahuna that you can’t do this! b. Determine the ratio of the voltages across resistors co ...
Power Electronics Laboratory-1 Introduction To
... 1. Identify the highest frequency of any sources in the circuit. 2. The maximum time step is one tenth of it period by default: e.g. voltage source of 50Hz, gives 20ms period. Time step is 1/10 x 20ms = 2ms. 3. Estimate the time at which simulation reaches steady-state. For example 0.4s. Therefore 1 ...
... 1. Identify the highest frequency of any sources in the circuit. 2. The maximum time step is one tenth of it period by default: e.g. voltage source of 50Hz, gives 20ms period. Time step is 1/10 x 20ms = 2ms. 3. Estimate the time at which simulation reaches steady-state. For example 0.4s. Therefore 1 ...
Multimeter
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A multimeter or a multitester, also known as a VOM (Volt-Ohm meter or Volt-Ohm-milliammeter ), is an electronic measuring instrument that combines several measurement functions in one unit. A typical multimeter would include basic features such as the ability to measure voltage, current, and resistance. Analog multimeters use a microammeter whose pointer moves over a scale calibrated for all the different measurements that can be made. Digital multimeters (DMM, DVOM) display the measured value in numerals, and may also display a bar of a length proportional to the quantity being measured. Digital multimeters are now far more common but analog multimeters are still preferable in some cases, for example when monitoring a rapidly varying value. A multimeter can be a hand-held device useful for basic fault finding and field service work, or a bench instrument which can measure to a very high degree of accuracy. They can be used to troubleshoot electrical problems in a wide array of industrial and household devices such as electronic equipment, motor controls, domestic appliances, power supplies, and wiring systems.Multimeters are available in a wide range of features and prices. Cheap multimeters can cost less than US$10, while laboratory-grade models with certified calibration can cost more than US$5,000.