(A) Resistance - Noadswood Science
... How do you work out speed? What 2 equations can you use to work out acceleration? What is acceleration measured in? What is the equation for work done and what is it measured in? • What is Hooke’s law? • What is the equation for working out current? • Name 3 things which can affect stopping distance ...
... How do you work out speed? What 2 equations can you use to work out acceleration? What is acceleration measured in? What is the equation for work done and what is it measured in? • What is Hooke’s law? • What is the equation for working out current? • Name 3 things which can affect stopping distance ...
doc - Cornerstone Robotics
... Select a fuse with a voltage rating that is higher than the maximum operating voltage. Picking a fuse with the correct current rating is more crucial. Choose a fuse that has a current rating between 1.5 to 2.0 times the normal operating current. Make certain that the wires in your circuit can wi ...
... Select a fuse with a voltage rating that is higher than the maximum operating voltage. Picking a fuse with the correct current rating is more crucial. Choose a fuse that has a current rating between 1.5 to 2.0 times the normal operating current. Make certain that the wires in your circuit can wi ...
CLC730033 Evaluation Boards
... (1.72*(R7/R3)). Recognizing the combination of the 50Ω series output resistor and the 50Ω load results in a voltage divider, the gain to this match load is one half of the maximum device gain setting, i.e. 4.9 V/V (13.9 dB). The inverting input (In-) is ground-referenced through 50Ω while the output ...
... (1.72*(R7/R3)). Recognizing the combination of the 50Ω series output resistor and the 50Ω load results in a voltage divider, the gain to this match load is one half of the maximum device gain setting, i.e. 4.9 V/V (13.9 dB). The inverting input (In-) is ground-referenced through 50Ω while the output ...
Labf2002_4
... on an oscilloscope are 1 cm wide so volts / cm is sometime used instead of volts / div. For the full-wave rectifier case, sketch a schematic showing how you will place your probes to measure the output voltage and briefly describe how you will measure this voltage. Grounding is the issue here, so cl ...
... on an oscilloscope are 1 cm wide so volts / cm is sometime used instead of volts / div. For the full-wave rectifier case, sketch a schematic showing how you will place your probes to measure the output voltage and briefly describe how you will measure this voltage. Grounding is the issue here, so cl ...
Plasma ball - Oxford Physics
... the globe (often neon) makes discharge significantly more favourable than it is in air at atmospheric pressure (the breakdown voltage of air which causes sparks from a Van de Graaff generator, for example, is 30,000 V/cm, whilst this can create arcs many centimetres long with just a few thousand vol ...
... the globe (often neon) makes discharge significantly more favourable than it is in air at atmospheric pressure (the breakdown voltage of air which causes sparks from a Van de Graaff generator, for example, is 30,000 V/cm, whilst this can create arcs many centimetres long with just a few thousand vol ...
VSP SERIES INT 191507 - DITEK Surge Protection
... 1. Connect the incoming feed from the “Field” to the INPUT side of the DTK-VSP. 2. Connect an appropriately tipped 3’ patch cable from the DTK-VSP to the equipment to be protected to allow for reaction time of the SPD. 3. Always have one common ground per system to eliminate the possibility of a dif ...
... 1. Connect the incoming feed from the “Field” to the INPUT side of the DTK-VSP. 2. Connect an appropriately tipped 3’ patch cable from the DTK-VSP to the equipment to be protected to allow for reaction time of the SPD. 3. Always have one common ground per system to eliminate the possibility of a dif ...
active antenna - Talking Electronics
... The amplifier's gain is nominally 20 dB. Its frequency response is determined primarily by the value of just a few components-primarily C1 and R1. The values in the schematic diagram provide a response of 3.0 dB from about 120 to over 20,000 Hz. Actually, the frequency response is flat from about 17 ...
... The amplifier's gain is nominally 20 dB. Its frequency response is determined primarily by the value of just a few components-primarily C1 and R1. The values in the schematic diagram provide a response of 3.0 dB from about 120 to over 20,000 Hz. Actually, the frequency response is flat from about 17 ...
Basic Concepts - Oakland University
... in most cases the aim of an energy source is to provide power to a load. Given a circuit with a known internal resistance, what is the resistance of the load that will result in the maximum power being delivered to the load? Consider the source to be modeled by its Thevenin equivalent. ...
... in most cases the aim of an energy source is to provide power to a load. Given a circuit with a known internal resistance, what is the resistance of the load that will result in the maximum power being delivered to the load? Consider the source to be modeled by its Thevenin equivalent. ...
Lecture Notes Chapter 19
... Mechanical power is the work done in a period of time: Electric power is the rate of flow determined by the force pushing. SI unit is watt (W) P = IΔV Power = current x potential difference If current, I = V/R then P = ΔV ΔV = ΔV2 ...
... Mechanical power is the work done in a period of time: Electric power is the rate of flow determined by the force pushing. SI unit is watt (W) P = IΔV Power = current x potential difference If current, I = V/R then P = ΔV ΔV = ΔV2 ...
Section G6: Practical Op-Amps
... For an ideal op-amp, if there is no applied input voltage(s), the difference voltage (vd=v+-v-) is equal to zero and the output is also equal to zero. Not surprisingly, this is not true for a practical device since it virtually impossible to have perfect symmetry in the input stage circuitry. The in ...
... For an ideal op-amp, if there is no applied input voltage(s), the difference voltage (vd=v+-v-) is equal to zero and the output is also equal to zero. Not surprisingly, this is not true for a practical device since it virtually impossible to have perfect symmetry in the input stage circuitry. The in ...
INA137 数据资料 dataSheet 下载
... when compared to circuits implemented with an op amp and discrete precision resistors. In addition, high slew rate (14V/µs) and fast settling time (3µs to 0.01%) ensure excellent dynamic performance. ...
... when compared to circuits implemented with an op amp and discrete precision resistors. In addition, high slew rate (14V/µs) and fast settling time (3µs to 0.01%) ensure excellent dynamic performance. ...
Class 20 Kirchhoff`s Rules
... 1. Go through every junctions in the circuit. Insert current as unknown variables (unless it is given) for every branch forming the junction. You may have to assume current directions. Make use of the Kirchhoff’s Current Rule and try to use as little of variables as possible. 2. Mark down “+” ...
... 1. Go through every junctions in the circuit. Insert current as unknown variables (unless it is given) for every branch forming the junction. You may have to assume current directions. Make use of the Kirchhoff’s Current Rule and try to use as little of variables as possible. 2. Mark down “+” ...
bp5220a : Power Modules
... (1) No circuit is installed in the modules to protect against excessive output currents. Therefore, take physical safety measures such as using a fuse if short-circuit loading is probable. (2) The output current should be reduced according to an increase in the input voltage or ambient temperature. ...
... (1) No circuit is installed in the modules to protect against excessive output currents. Therefore, take physical safety measures such as using a fuse if short-circuit loading is probable. (2) The output current should be reduced according to an increase in the input voltage or ambient temperature. ...
Lab #9 AC Circuits - Northern Arizona University
... 4. Current through a capacitor leads the voltage across it by Δt of T/4, meaning that the current peak occurs before the voltage peak by 1/4th of a period. Remember ELI the ICE man from lab 7? 5. For sinusoidal voltage and current, the current through a capacitor leads the voltage across it by a pha ...
... 4. Current through a capacitor leads the voltage across it by Δt of T/4, meaning that the current peak occurs before the voltage peak by 1/4th of a period. Remember ELI the ICE man from lab 7? 5. For sinusoidal voltage and current, the current through a capacitor leads the voltage across it by a pha ...
Split-phase electric power - University of Utah Physics
... This allows a single service to supply 120 V for lighting, 240 V single-phase for heating appliances, and 240 V three-phase for motor loads (such as air conditioning compressors). Two of the phases are 120 V to neutral, the third phase or "high leg" is 208 V to neutral. Systems split more than two w ...
... This allows a single service to supply 120 V for lighting, 240 V single-phase for heating appliances, and 240 V three-phase for motor loads (such as air conditioning compressors). Two of the phases are 120 V to neutral, the third phase or "high leg" is 208 V to neutral. Systems split more than two w ...
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.