DC System Grounds: Can You Afford to Live with Them?
... ground resistance becomes so low that high-voltage circuit breaker control schemes are unable to open or close breakers when required or dc system circuit breakers and or fuses open due to overcurrent resulting in de-energization of vital operating equipment. Figure 2 shows a relay control system wi ...
... ground resistance becomes so low that high-voltage circuit breaker control schemes are unable to open or close breakers when required or dc system circuit breakers and or fuses open due to overcurrent resulting in de-energization of vital operating equipment. Figure 2 shows a relay control system wi ...
General Specification for Digital Protective Relay of MV Switchgear
... without setting drift over time and full range of auxiliary voltage variations as per the requisition. 3.3.8 The Digital Protective Relay shall be capable of withstanding the output current of the associated current transformers corresponding to a primary current equal to the specified short circuit ...
... without setting drift over time and full range of auxiliary voltage variations as per the requisition. 3.3.8 The Digital Protective Relay shall be capable of withstanding the output current of the associated current transformers corresponding to a primary current equal to the specified short circuit ...
LT5557 - 400MHz to 3.8GHz 3.3V Active Downconverting Mixer.
... GND (Pins 9, 12): Ground. These pins are internally connected to the backside ground for improved isolation. They should be connected to the RF ground on the circuit board, although they are not intended to replace the primary grounding through the backside contact of the package. ...
... GND (Pins 9, 12): Ground. These pins are internally connected to the backside ground for improved isolation. They should be connected to the RF ground on the circuit board, although they are not intended to replace the primary grounding through the backside contact of the package. ...
ADF4360-3 Integrated Synthesizer and VCO (Rev. D)
... rating only; functional operation of the device at these or any other conditions above those listed in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. This device is a high performance R ...
... rating only; functional operation of the device at these or any other conditions above those listed in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. This device is a high performance R ...
Single Transistor Mixers and Large Signal Distortion
... As we have seen, a mixer has three ports, the LO, RF, and IF port. Assume that a circuit is “pumped” with a periodic large signal at the LO port with frequency !0 . From the RF port, though, assume we apply a small signal at frequency !s . Since the RF input is small, the circuit response should be ...
... As we have seen, a mixer has three ports, the LO, RF, and IF port. Assume that a circuit is “pumped” with a periodic large signal at the LO port with frequency !0 . From the RF port, though, assume we apply a small signal at frequency !s . Since the RF input is small, the circuit response should be ...
Driving LEDs with Xilinx CPLDs Summary
... If multiple LEDs are to be driven by individual pins on the same CPLD, there are a few guidelines that may be helpful. These help to reduce the effect of ground bounce due to multiple outputs switching simultaneously, and hence avoid corrupting the operation of other devices driven by the CPLD. ...
... If multiple LEDs are to be driven by individual pins on the same CPLD, there are a few guidelines that may be helpful. These help to reduce the effect of ground bounce due to multiple outputs switching simultaneously, and hence avoid corrupting the operation of other devices driven by the CPLD. ...
DMN63D8LDW Product Summary Features
... Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any c ...
... Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any c ...
Data Sheet - Carlton
... MULTI-BEAM 3- & 4-wire scanner blocks offer a complete complement of sensing modes. There are 3 or more models for each sensing mode, resulting in a choice of exactly the right sensor for any application. The high power models (10 millisecond response time) offer greater optical sensing power than a ...
... MULTI-BEAM 3- & 4-wire scanner blocks offer a complete complement of sensing modes. There are 3 or more models for each sensing mode, resulting in a choice of exactly the right sensor for any application. The high power models (10 millisecond response time) offer greater optical sensing power than a ...
An introduction to LLC resonant half
... As to resonant tanks, with two reactive elements (one L and one C) there are a total of eight different possible configurations, but only four of them are practically usable with a voltage source input. Two of them generate the well-known series resonant converter and parallel resonant converter con ...
... As to resonant tanks, with two reactive elements (one L and one C) there are a total of eight different possible configurations, but only four of them are practically usable with a voltage source input. Two of them generate the well-known series resonant converter and parallel resonant converter con ...
TRS3221E 数据资料 dataSheet 下载
... RS-232 pins provide IEC G1000-4-2 ESD protection. The device meets the requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small external capacitors allow operation from a single ...
... RS-232 pins provide IEC G1000-4-2 ESD protection. The device meets the requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small external capacitors allow operation from a single ...
CDC7630_7631 数据资料DataSheet下载
... tangential signal power levels. Since they require no bias, noise is at a minimum. A low video impedance means a short R-C time constant and, therefore, wide video bandwidth and excellent pulse fidelity. As power monitors, these diodes may also be used to directly drive metering circuits even at low ...
... tangential signal power levels. Since they require no bias, noise is at a minimum. A low video impedance means a short R-C time constant and, therefore, wide video bandwidth and excellent pulse fidelity. As power monitors, these diodes may also be used to directly drive metering circuits even at low ...
CS5484 Four Channel Energy Measurement IC
... circuitry, and the proven EXL signal processing core to provide active, reactive, and apparent energy measurement. In addition, RMS and power factor calculations are available. Calculations are output through a configurable energy pulse, or direct UART/SPI™ serial access to on-chip registers. Instan ...
... circuitry, and the proven EXL signal processing core to provide active, reactive, and apparent energy measurement. In addition, RMS and power factor calculations are available. Calculations are output through a configurable energy pulse, or direct UART/SPI™ serial access to on-chip registers. Instan ...
Hotswap Design Using TPS2490/01 and MOSFET Transient
... This example was similar to Example 1, but a few changes were neccessary, notably a reduction in the ambient temperature and an assumed reduction in thermal resistance due to forced air. The smaller package has a reduced ability to sink power from the die to a larger RθJL and also has a higher RθJA. ...
... This example was similar to Example 1, but a few changes were neccessary, notably a reduction in the ambient temperature and an assumed reduction in thermal resistance due to forced air. The smaller package has a reduced ability to sink power from the die to a larger RθJL and also has a higher RθJA. ...
Fitting instructions for digital ignition ZDG3 for YAMAHA XS650
... At some stroboscope lamps the ignition point suddenly oscillates around 4-6°. In this case the lamp once reacts to the ignition spark starting, another time to the burning end of the spark. If possible readjust the sensitivity of the lamp. Another possibility is to put an 0,1uF/400V-capacitor provis ...
... At some stroboscope lamps the ignition point suddenly oscillates around 4-6°. In this case the lamp once reacts to the ignition spark starting, another time to the burning end of the spark. If possible readjust the sensitivity of the lamp. Another possibility is to put an 0,1uF/400V-capacitor provis ...
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.