AN-8208 — Introduction to Automotive Ignition Systems
... desirable as increasing demand for better Miles-Per-Gallon (MPG) engines operating at higher compression ratios need higher sparking voltage and more energy to ignite a lean airand-fuel mixture. ...
... desirable as increasing demand for better Miles-Per-Gallon (MPG) engines operating at higher compression ratios need higher sparking voltage and more energy to ignite a lean airand-fuel mixture. ...
Optimizing 1200V IGBT Modules for High Frequency Applications
... I. INTRODUCTION The fundamental trade-off between turn-off switching loss (ESW(off)) and on state voltage drop (VCE(sat)) in IGBT chip design is well known. Standard industrial IGBT modules are typically optimized for motor drive and similar applications in which the carrier frequency is typically 1 ...
... I. INTRODUCTION The fundamental trade-off between turn-off switching loss (ESW(off)) and on state voltage drop (VCE(sat)) in IGBT chip design is well known. Standard industrial IGBT modules are typically optimized for motor drive and similar applications in which the carrier frequency is typically 1 ...
The ABC`s of Fire Alarm Systems - Part XI
... different from street boxes, since they are located where plenty of power is available. These master boxes might be located in ordinary looking sheet metal enclosures and need not be located outside the building, since they are not wired to a city circuit. They somewhat resemble a conventional fire ...
... different from street boxes, since they are located where plenty of power is available. These master boxes might be located in ordinary looking sheet metal enclosures and need not be located outside the building, since they are not wired to a city circuit. They somewhat resemble a conventional fire ...
Phase-Matching Considerations with Open-Delta PTs
... of the sources may be sufficient. However, if a system is closed transition (the two sources may be tied together for some duration of time) it is critical that the two sources be phase matched. This means that the phase voltages on either side of the open point are in phase with each other. Additio ...
... of the sources may be sufficient. However, if a system is closed transition (the two sources may be tied together for some duration of time) it is critical that the two sources be phase matched. This means that the phase voltages on either side of the open point are in phase with each other. Additio ...
Motor Cycle
... In most cases this test will be to establish that the spark voltage is sufficient to start the engine, and will be done at cranking speeds. ...
... In most cases this test will be to establish that the spark voltage is sufficient to start the engine, and will be done at cranking speeds. ...
MAX258 500mA, Push-Pull Transformer Driver for Isolated Power
... on the rectifier topology used. The phasing between primary and secondary windings is not critical. The transformer turns ratio must be set to provide the minimum required output voltage at the maximum anticipated load with the minimum expected input voltage. In addition, include in the calculations ...
... on the rectifier topology used. The phasing between primary and secondary windings is not critical. The transformer turns ratio must be set to provide the minimum required output voltage at the maximum anticipated load with the minimum expected input voltage. In addition, include in the calculations ...
Integrated LC filter on silicon for DC-DC converter - HAL-LAAS
... the bottom electrode of the capacitor is formed: high aspect ratio pores are etched by DRIE (Deep Reactive Ion Etching) in the silicon substrate and a phosphorus diffusion step (by POCl3) is applied. Then, in step (b), a dielectric (SiO2-Si3N4bilayer) is formed by a dry oxidation step and by LPCVD ( ...
... the bottom electrode of the capacitor is formed: high aspect ratio pores are etched by DRIE (Deep Reactive Ion Etching) in the silicon substrate and a phosphorus diffusion step (by POCl3) is applied. Then, in step (b), a dielectric (SiO2-Si3N4bilayer) is formed by a dry oxidation step and by LPCVD ( ...
Basic Controls, 1-4 Contactors and Control Relays
... Ex. 1-4 – Contactors and Control Relays Discussion To reverse the direction of a motor, an arrangement of two contactors can be made, with each contactor dedicated to either forward or reverse direction. These contactors may then serve the same purpose as the Cam Switch module, except they are op ...
... Ex. 1-4 – Contactors and Control Relays Discussion To reverse the direction of a motor, an arrangement of two contactors can be made, with each contactor dedicated to either forward or reverse direction. These contactors may then serve the same purpose as the Cam Switch module, except they are op ...
Resonant inductive coupling
Resonant inductive coupling or electrodynamic induction is the near field wireless transmission of electrical energy between two magnetically coupled coils that are part of resonant circuits tuned to resonate at the same frequency. This process occurs in a resonant transformer, an electrical component which consists of two high Q coils wound on the same core with capacitors connected across the windings to make two coupled LC circuits. Resonant transformers are widely used in radio circuits as bandpass filters, and in switching power supplies. Resonant inductive coupling is also being used in wireless power systems. Here the two LC circuits are in different devices; a transmitter coil in one device transmits electric power across an intervening space to a resonant receiver coil in another device. This technology is being developed for powering and charging portable devices such as cellphones and tablet computers at a distance, without being tethered to an outlet.Resonant transfer works by making a coil ring with an oscillating current. This generates an oscillating magnetic field. Because the coil is highly resonant, any energy placed in the coil dies away relatively slowly over very many cycles; but if a second coil is brought near it, the coil can pick up most of the energy before it is lost, even if it is some distance away. The fields used are predominately non-radiative, near fields (sometimes called evanescent waves), as all hardware is kept well within the 1/4 wavelength distance they radiate little energy from the transmitter to infinity.One of the applications of the resonant transformer is for the CCFL inverter. Another application of the resonant transformer is to couple between stages of a superheterodyne receiver, where the selectivity of the receiver is provided by tuned transformers in the intermediate-frequency amplifiers. The Tesla coil is a resonant transformer circuit used to generate very high voltages, and is able to provide much higher current than high voltage electrostatic machines such as the Van de Graaff generator. Resonant energy transfer is the operating principle behind proposed short range (up to 2 metre) wireless electricity systems such as WiTricity or Rezence and systems that have already been deployed, such as Qi power transfer, passive RFID tags and contactless smart cards.