Exercise Fundamental electrical measurements
... measurements methods, measurement errors and instrument inaccuracies) Determination of electric current passing through the resistor as the function of voltage Analysis of the obtained results and report writing training ...
... measurements methods, measurement errors and instrument inaccuracies) Determination of electric current passing through the resistor as the function of voltage Analysis of the obtained results and report writing training ...
EUP7117 High Efficiency, Synchronous Step-Down Controller
... needed by the controller to generate an output voltage as low as 0.75V and output current up to 15A from an input supply (1.8V to 28V). EUP7117 features two operation modes: the pulse-skipping mode for high efficiency at light load and the forced PWM mode for low noise applications. The EUP7117 auto ...
... needed by the controller to generate an output voltage as low as 0.75V and output current up to 15A from an input supply (1.8V to 28V). EUP7117 features two operation modes: the pulse-skipping mode for high efficiency at light load and the forced PWM mode for low noise applications. The EUP7117 auto ...
335-project2 - UTK-EECS
... (c) Characterize the BJT to obtain SPICE parameters BF, VA, and IS for your transistor. (d) Perform SPICE simulation to obtain bias voltages and currents and run transient simulation to obtain output voltage waveform using a sinusoidal input waveform. Verify the midband voltage gain when the output ...
... (c) Characterize the BJT to obtain SPICE parameters BF, VA, and IS for your transistor. (d) Perform SPICE simulation to obtain bias voltages and currents and run transient simulation to obtain output voltage waveform using a sinusoidal input waveform. Verify the midband voltage gain when the output ...
Electrostatics II
... electric current which will flow through them is directly proportional to the voltage applied to them. ...
... electric current which will flow through them is directly proportional to the voltage applied to them. ...
June 2000 - Vicphysics
... So after one time constant the voltage = 1.2 – 0.76 = 0.44 volts, which occurs about 2.7 secs (accept 2.5 – 2.9 sec) 27 kilohm Time constant = CR, so R = 2.7 / (100 x 10-6) = 27 k-ohms (C) Ohmic means that the current is proportional to the voltage. It could be argued that at a given temp, a voltage ...
... So after one time constant the voltage = 1.2 – 0.76 = 0.44 volts, which occurs about 2.7 secs (accept 2.5 – 2.9 sec) 27 kilohm Time constant = CR, so R = 2.7 / (100 x 10-6) = 27 k-ohms (C) Ohmic means that the current is proportional to the voltage. It could be argued that at a given temp, a voltage ...
AP 1: Ohm`s Law Lab (Studet) v1.0 20140810
... Construct the circuit shown below. For several settings of the potentiometer, measure the current and the voltage. Use your collected data to verify the relationship between current and voltage (Ohm’s Law). Materials ...
... Construct the circuit shown below. For several settings of the potentiometer, measure the current and the voltage. Use your collected data to verify the relationship between current and voltage (Ohm’s Law). Materials ...
Building a Simple Circuit
... • Voltage is amount of water you have. • Batteries have voltage. • Bigger the battery, bigger the voltage ...
... • Voltage is amount of water you have. • Batteries have voltage. • Bigger the battery, bigger the voltage ...
ETEE3212 Spring 2006 Test #2
... VCC=12V, VBE=0.7V, and β=200, find CE such that the low frequency cutoff is approximately 40Hz. Use VT=26mV. ...
... VCC=12V, VBE=0.7V, and β=200, find CE such that the low frequency cutoff is approximately 40Hz. Use VT=26mV. ...
NTE1979 Integrated Circuit Negative 3 Terminal Voltage Regulator
... The NTE1979 is a 3–terminal fixed negative output voltage regulatgor in a TO92 type package designed for use in power circuits with current capacity up to 100mA. Stabilized fixed output voltage is obtained from unstable DC input voltage without the use of external components. Features: D No External ...
... The NTE1979 is a 3–terminal fixed negative output voltage regulatgor in a TO92 type package designed for use in power circuits with current capacity up to 100mA. Stabilized fixed output voltage is obtained from unstable DC input voltage without the use of external components. Features: D No External ...
ET 12
... 2. A single-phase transformer used for lighting circuit on board ship has 1000 turns on the primary and 200 turns on the secondary. The no load current is 3A at 0.2 power factor lag when the secondary current is 280A at a power factor of 0.8 lagging. Assume the voltage drop in the winding to be negl ...
... 2. A single-phase transformer used for lighting circuit on board ship has 1000 turns on the primary and 200 turns on the secondary. The no load current is 3A at 0.2 power factor lag when the secondary current is 280A at a power factor of 0.8 lagging. Assume the voltage drop in the winding to be negl ...
ch 16 Electricity Essential Questions
... The following questions are to be reviewed at the beginning if the chapter to familiarize yourself with what is to be expected. At the end of the chapter you will be answering the questions as a study guide tool to prepare for the test. Name: __________________________Date: __________ Bl: ________ ...
... The following questions are to be reviewed at the beginning if the chapter to familiarize yourself with what is to be expected. At the end of the chapter you will be answering the questions as a study guide tool to prepare for the test. Name: __________________________Date: __________ Bl: ________ ...
Chapter 6 , 7 & 8
... Since there is only one path for electrons to flow - The current is equal throughout the circuit. The current must be the same at any place in the circuit. Current at place # 1 ...
... Since there is only one path for electrons to flow - The current is equal throughout the circuit. The current must be the same at any place in the circuit. Current at place # 1 ...
RL-series circuits
... 1. Use the method of integration factors to calculate what the general solution is for this differential equation. 2. In an RL-series circuit, L = 4 henries, R = 5 ohms, V = 8 volts, and I(0) = 0 amperes. Find the current at the end of 0.1 seconds. What will the current be after a very long time? 3. ...
... 1. Use the method of integration factors to calculate what the general solution is for this differential equation. 2. In an RL-series circuit, L = 4 henries, R = 5 ohms, V = 8 volts, and I(0) = 0 amperes. Find the current at the end of 0.1 seconds. What will the current be after a very long time? 3. ...
File
... Amplifiers input terminal, output terminal, both referenced to a common reference (ground) – Vref, GND Vpos, Vsupply, or VCC, or VDD. Vneg, Vss, or VEE They are also known as the rails of an amplifier. Made with resistors, capacitors, and transistors. ...
... Amplifiers input terminal, output terminal, both referenced to a common reference (ground) – Vref, GND Vpos, Vsupply, or VCC, or VDD. Vneg, Vss, or VEE They are also known as the rails of an amplifier. Made with resistors, capacitors, and transistors. ...
Capacitors_ppt_RevW10
... • The resistance of many (but not all) substances decreases with temperature • A special class of materials known as superconductors lose all electrical resistance below a temperature known as the critical temperature • Superconductors can levitate magnets by the Meissner Effect where a perfect cond ...
... • The resistance of many (but not all) substances decreases with temperature • A special class of materials known as superconductors lose all electrical resistance below a temperature known as the critical temperature • Superconductors can levitate magnets by the Meissner Effect where a perfect cond ...
Resistive opto-isolator
Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.