BD9851EFV
... 1) Reference voltage block The reference voltage block generates a constant voltage with temperature compensated through inputting the power supplied from the Vcc pin. The output voltage is 2.5 V, with a ±1% accuracy. To cancel noises, insert a capacitor with a low ESR (several tens of mΩ) between t ...
... 1) Reference voltage block The reference voltage block generates a constant voltage with temperature compensated through inputting the power supplied from the Vcc pin. The output voltage is 2.5 V, with a ±1% accuracy. To cancel noises, insert a capacitor with a low ESR (several tens of mΩ) between t ...
7B47 数据手册DataSheet 下载
... interfaces, amplifies and filters input voltages from a J, K, T, E, R, S, B, or N-type thermocouple and provides an isolated and protected precision output of either +1V to +5V or 0 to +10 V, linear with input temperature. High accuracy internal cold junction compensation and a predictable upscale o ...
... interfaces, amplifies and filters input voltages from a J, K, T, E, R, S, B, or N-type thermocouple and provides an isolated and protected precision output of either +1V to +5V or 0 to +10 V, linear with input temperature. High accuracy internal cold junction compensation and a predictable upscale o ...
ReliaGear ND Descriptive Bulletin
... ABB’s Relion® family of protection and control relays for distribution applications provides the performance, safety, and ease-of-use that switchgear specifiers and users demand. The Relion 615 and 620 series offer complete protection and control for feeders, motors, and transformers in switchgear a ...
... ABB’s Relion® family of protection and control relays for distribution applications provides the performance, safety, and ease-of-use that switchgear specifiers and users demand. The Relion 615 and 620 series offer complete protection and control for feeders, motors, and transformers in switchgear a ...
Exar 电源Blox 元器件订购手册
... system with the fewest number of external size components. This family of high current, Actual 4mm high voltage, ultra-miniature DC/DC buck 7mm x regulators greatly simplifies the complex task of designing power solutions for next generation electronics applications. ...
... system with the fewest number of external size components. This family of high current, Actual 4mm high voltage, ultra-miniature DC/DC buck 7mm x regulators greatly simplifies the complex task of designing power solutions for next generation electronics applications. ...
ADCLK948 数据手册DataSheet 下载
... The following references to the GND plane assume that the VEE power plane is grounded for LVPECL operation. Note that, for ECL operation, the VCC power plane becomes the ground plane. It is also important to adequately bypass the input and output supplies. Place a 1 μF electrolytic bypass capacitor ...
... The following references to the GND plane assume that the VEE power plane is grounded for LVPECL operation. Note that, for ECL operation, the VCC power plane becomes the ground plane. It is also important to adequately bypass the input and output supplies. Place a 1 μF electrolytic bypass capacitor ...
Technical application guide PrevaLED® Flat AC and Flat
... ceiling-mounted luminaires in decorative, hospitality or domestic applications. ...
... ceiling-mounted luminaires in decorative, hospitality or domestic applications. ...
Current Source Modular Multilevel Converter for HVDC and FACTS
... source DC grids require protection against open-circuit faults. Emergency current paths should be provided in the current source circuit concept (e.g. in [6]). This can be technologically easier than dissipating the energy of the magnetic field associated with a current in the voltage source DC grid ...
... source DC grids require protection against open-circuit faults. Emergency current paths should be provided in the current source circuit concept (e.g. in [6]). This can be technologically easier than dissipating the energy of the magnetic field associated with a current in the voltage source DC grid ...
Putting Safety into Li-ion Battery Packs
... Vcell detection without cell balancing considerations is a voltage measurement that is monitored for over voltage, under voltage and open cell conditions. The under voltage condition is important in detecting pack empty situations to protect the cells from dropping out of the active region. A lithiu ...
... Vcell detection without cell balancing considerations is a voltage measurement that is monitored for over voltage, under voltage and open cell conditions. The under voltage condition is important in detecting pack empty situations to protect the cells from dropping out of the active region. A lithiu ...
AD6630 数据手册DataSheet 下载
... While the AD6630 is optimized for use with the AD6600 Dual Channel, Gain Ranging ADC with RSSI, it can also be used in many other IF applications. The AD6630 is designed with an input impedance of 200 Ω and an output of 400 Ω. In the typical application shown below, these values match the real porti ...
... While the AD6630 is optimized for use with the AD6600 Dual Channel, Gain Ranging ADC with RSSI, it can also be used in many other IF applications. The AD6630 is designed with an input impedance of 200 Ω and an output of 400 Ω. In the typical application shown below, these values match the real porti ...
8502–00 and 8503–00 20Hz Ringing Generators
... and the 20Hz output at pins 1 and 2 of TB1 will be continuous. The INTERRUPTER functions as an on-off switch for ground when an external enable is not provided. When the interrupter circuit is used, the 20Hz OSCILLATOR will be turned on for two seconds and off for four seconds repeatedly. Input powe ...
... and the 20Hz output at pins 1 and 2 of TB1 will be continuous. The INTERRUPTER functions as an on-off switch for ground when an external enable is not provided. When the interrupter circuit is used, the 20Hz OSCILLATOR will be turned on for two seconds and off for four seconds repeatedly. Input powe ...
Rectifier Circuit Current Ratios
... speed fuses. These requirements are generally more stringent than the fuse requirements for typical 60 cycle AC power distribution systems in commercial buildings or industrial plants. The diodes or SCRs are at the heart of the solid-state power equipment. These semiconductor devices have relatively ...
... speed fuses. These requirements are generally more stringent than the fuse requirements for typical 60 cycle AC power distribution systems in commercial buildings or industrial plants. The diodes or SCRs are at the heart of the solid-state power equipment. These semiconductor devices have relatively ...
The effect of aluminium additive A. G
... situations, ceramics may break or melt and a surface discharge may occur. The common reasons for varistor degradation and failures due to ageing include: • working voltage exceeding the maximum operation value (dynamic overvoltage and ground fault), • lightning surge current which significantly exce ...
... situations, ceramics may break or melt and a surface discharge may occur. The common reasons for varistor degradation and failures due to ageing include: • working voltage exceeding the maximum operation value (dynamic overvoltage and ground fault), • lightning surge current which significantly exce ...
Analysis of Different Topologies For Active Power Factor Correction
... poor noise immunity, a need for slope compensation, and peakto-average current errors which the inherently low current loop gain cannot correct. Average current mode control eliminates these problems and may be used effectively to control currents other than inductor current, allowing a much broader ...
... poor noise immunity, a need for slope compensation, and peakto-average current errors which the inherently low current loop gain cannot correct. Average current mode control eliminates these problems and may be used effectively to control currents other than inductor current, allowing a much broader ...
Electricity and Magnetism
... 2. Set-up three series circuits exactly the same – each with one bulb. Brightness of the bulbs are equal and considered to each be ‘X’. a) Remove the bulbs from the second and third circuits. Add each of these in parallel to the bulb in the first circuit. Do the bulbs get brighter or dimmer ‘X’? Hy ...
... 2. Set-up three series circuits exactly the same – each with one bulb. Brightness of the bulbs are equal and considered to each be ‘X’. a) Remove the bulbs from the second and third circuits. Add each of these in parallel to the bulb in the first circuit. Do the bulbs get brighter or dimmer ‘X’? Hy ...
8.4. Practice Problems
... 2. The following circuit is used as the phase-shifting network for a two-stage FET oscilla. Determine the frequency of oscillation and the gain tor. Find the circuit’s beta, required from the amplifier. (30 points) R ...
... 2. The following circuit is used as the phase-shifting network for a two-stage FET oscilla. Determine the frequency of oscillation and the gain tor. Find the circuit’s beta, required from the amplifier. (30 points) R ...
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.