Eliminate Voltage Unbalance - ALL
... motor. Voltage unbalance at the motor terminals can cause current unbalance that is far out of proportion to the voltage unbalance. Unbalanced currents lead to torque pulsations, increased vibrations and mechanical stresses, increased losses resulting in lower efficiency, and motor overheating, whic ...
... motor. Voltage unbalance at the motor terminals can cause current unbalance that is far out of proportion to the voltage unbalance. Unbalanced currents lead to torque pulsations, increased vibrations and mechanical stresses, increased losses resulting in lower efficiency, and motor overheating, whic ...
Document
... The second important type of pole distribution provides a Chebyshev type frequency characteristic. The side-walls of a Chebyshev type (or equi-ripple) characteristic is steeper than that of a same order Butterwoth type characteristic, but exhibits a typical ripple on the top of the curve, as shown i ...
... The second important type of pole distribution provides a Chebyshev type frequency characteristic. The side-walls of a Chebyshev type (or equi-ripple) characteristic is steeper than that of a same order Butterwoth type characteristic, but exhibits a typical ripple on the top of the curve, as shown i ...
Electro-Optic Polymer Infiltrated Silicon Photonic Crystal Slot
... In summary, we achieved 23dB modulation enhancement of EO polymer nano-photonic modulator from slow light effect. The low Vπ·L of 0.56V·mm represents the best figure of merit achieved for EO polymer modulator. Such compact and highly efficient nano-photonic modulator is an ideal candidate for on-chi ...
... In summary, we achieved 23dB modulation enhancement of EO polymer nano-photonic modulator from slow light effect. The low Vπ·L of 0.56V·mm represents the best figure of merit achieved for EO polymer modulator. Such compact and highly efficient nano-photonic modulator is an ideal candidate for on-chi ...
Types of Electrical Overstress Protection
... and p doped regions of silicon as illustrated in Figure 4. At the junction the electric fields between the n and p doped regions create a depleted region without either n or p carriers when there is no externally applied voltage. If a negative voltage is applied from the cathode to the anode both n ...
... and p doped regions of silicon as illustrated in Figure 4. At the junction the electric fields between the n and p doped regions create a depleted region without either n or p carriers when there is no externally applied voltage. If a negative voltage is applied from the cathode to the anode both n ...
GTO: TRIAC IGBT: LASCR 12 4 (1 each)
... The welding machine receives ac power, by means of a timing device, through a power transformer, a circuit breaker, and an SCR. Inside the welding machine, a welding transformer reduces the voltage at the electrode tips (1 to 10 V) and supply a large welding current, while drawing about 50 to 2000 A ...
... The welding machine receives ac power, by means of a timing device, through a power transformer, a circuit breaker, and an SCR. Inside the welding machine, a welding transformer reduces the voltage at the electrode tips (1 to 10 V) and supply a large welding current, while drawing about 50 to 2000 A ...
IL300 - GES Electronics
... operational amplifier using the resistors selected. The amplifier was compensated with a 100 pF capacitor connected between pins 1 and 8. The DC transfer characteristics are shown in Figure 19. The amplifier was designed to have a gain of 0.6 and was measured to be 0.6036. Greater accuracy can be ac ...
... operational amplifier using the resistors selected. The amplifier was compensated with a 100 pF capacitor connected between pins 1 and 8. The DC transfer characteristics are shown in Figure 19. The amplifier was designed to have a gain of 0.6 and was measured to be 0.6036. Greater accuracy can be ac ...
Isolated, Loop-Powered Voltage-to-Current Converter 1B21
... incorporates a unique circuit design utilizing transformer-based isolation and automated surface-mount manufacturing technology. It provides an unbeatable combination of versatility and performance in a compact plastic package. Designed for industrial applications, it is especially suited for harsh ...
... incorporates a unique circuit design utilizing transformer-based isolation and automated surface-mount manufacturing technology. It provides an unbeatable combination of versatility and performance in a compact plastic package. Designed for industrial applications, it is especially suited for harsh ...
Final Presentation - High Speed Digital Systems Lab
... instead of Boost converter to prevent possible noises and to reduce BOM price. Because we can’t trust that the USB power is always +5v and not less, we couldn’t use only one charge pump to double it, so we needed two charge pumps with more than +5v operating voltage range. We found only one charge p ...
... instead of Boost converter to prevent possible noises and to reduce BOM price. Because we can’t trust that the USB power is always +5v and not less, we couldn’t use only one charge pump to double it, so we needed two charge pumps with more than +5v operating voltage range. We found only one charge p ...
SS-5H - Cooper Industries
... approval of an officer of the Company. Life support systems are devices which support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. Eaton rese ...
... approval of an officer of the Company. Life support systems are devices which support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. Eaton rese ...
Chapter 1 - UniMAP Portal
... Introduction to the Node-Voltage Method, the Node-Voltage Method with dependent sources and special cases, introduction to MeshCurrent Method, Mesh-Current Method with dependent sources and special cases, source transformations, Thevenin and Norton equivalent circuit, maximum power transfer and supe ...
... Introduction to the Node-Voltage Method, the Node-Voltage Method with dependent sources and special cases, introduction to MeshCurrent Method, Mesh-Current Method with dependent sources and special cases, source transformations, Thevenin and Norton equivalent circuit, maximum power transfer and supe ...
BDTIC ICE2QS02G Quasi-Resonant PWM Controller
... The up/down counter stores the number of the zero crossing to be ignored before the main power switch is switched on after demagnetisation of the transformer. This value is fixed according to the feedback voltage, VFB, which contains information about the output power. Indeed, in a typical peak curr ...
... The up/down counter stores the number of the zero crossing to be ignored before the main power switch is switched on after demagnetisation of the transformer. This value is fixed according to the feedback voltage, VFB, which contains information about the output power. Indeed, in a typical peak curr ...
Paper Title (use style: paper title)
... the size for memory capacitor such that Cgs1/(Cgs1+CM) << 1/2N. The choice between two options depends on power and area constraints. For this work single core implementation with larger capacitors was used. By making CMEM very large compared to Cgs,M1 it can be reduced. For the current design CMEM ...
... the size for memory capacitor such that Cgs1/(Cgs1+CM) << 1/2N. The choice between two options depends on power and area constraints. For this work single core implementation with larger capacitors was used. By making CMEM very large compared to Cgs,M1 it can be reduced. For the current design CMEM ...
Cost-Effective Smart Metering System for the Power Consumption
... B. Measurement and evaluation of electric current Electric current is a physical quantity that determines the size of the charge that flows around a given point in an electrical circuit. The basic unit of current is Ampere [A], which is the basic unit of the SI (1A=1C/s). The resistance of direct cu ...
... B. Measurement and evaluation of electric current Electric current is a physical quantity that determines the size of the charge that flows around a given point in an electrical circuit. The basic unit of current is Ampere [A], which is the basic unit of the SI (1A=1C/s). The resistance of direct cu ...
L297 L297D
... different sequences, selected by the HALF/FULL input. These are normal (two phases energised), wave drive (one phase energised) and half-step (alternately one phase energised/two phases energised). Two inhibit signals are also generated by the L297 in half step and wave drive modes. These signals, w ...
... different sequences, selected by the HALF/FULL input. These are normal (two phases energised), wave drive (one phase energised) and half-step (alternately one phase energised/two phases energised). Two inhibit signals are also generated by the L297 in half step and wave drive modes. These signals, w ...
7000A Thyristor Controlled Rectifier
... A Polaron Cortina 7,000 Amp rectifier offering a thryristor controllable 0-60 Volt output. Cortina specialise in the manufacture of Variable voltage and current thyristor rectifiers, for anodising, welding and plating applications. The Polaron Cortina is a primary SCR, single copper wound transforme ...
... A Polaron Cortina 7,000 Amp rectifier offering a thryristor controllable 0-60 Volt output. Cortina specialise in the manufacture of Variable voltage and current thyristor rectifiers, for anodising, welding and plating applications. The Polaron Cortina is a primary SCR, single copper wound transforme ...
Silicon sensor specifications for D0 SMTII
... delivered sensors, these measurements will be confirmed by independent measurements at Fermi National Accelerator Laboratory or at universities. Based upon the results of these measurements, we reserve the right to reject a sensor within 6 months after delivery. The manufacturer will be notified and ...
... delivered sensors, these measurements will be confirmed by independent measurements at Fermi National Accelerator Laboratory or at universities. Based upon the results of these measurements, we reserve the right to reject a sensor within 6 months after delivery. The manufacturer will be notified and ...
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.