Achieving and improving Level and Attenuation
... features and capabilities, but as their name suggests are intended for general RF signal generation applications. Specific applications such as communications and the many cellular, Bluetooth, WIFI, etc, signals are handled by optional „personality‟ and modulation features. However the level accurac ...
... features and capabilities, but as their name suggests are intended for general RF signal generation applications. Specific applications such as communications and the many cellular, Bluetooth, WIFI, etc, signals are handled by optional „personality‟ and modulation features. However the level accurac ...
D.J. Perreault, J. Hu, J.M. Rivas, Y. Han, O. Leitermann, R.C.N. Pilawa-Podgurski, A. Sagneri, and C.R. Sullivan, Opportunities and Challenges in Very High Frequency Power Conversion, 2009 IEEE Applied Power Electronics conference , Feb. 2009, pp. 1-14
... the values of α and β that provide a good fit to core-loss data vary as a function of frequency: α becomes larger at high frequency and β stays approximately constant or decreases [44]. Thus, at sufficiently high frequency, the improvements from scaling frequency cease and then reverse, so there is ...
... the values of α and β that provide a good fit to core-loss data vary as a function of frequency: α becomes larger at high frequency and β stays approximately constant or decreases [44]. Thus, at sufficiently high frequency, the improvements from scaling frequency cease and then reverse, so there is ...
Asynchronous generator
... power will be generated. The rotor has a synchronous speed implying s = 0 and I’2 = 0. The load current is purely inductive implying Im + I1 = IC. This means the capacitors generate the magnetization current and the load current. This is the situation at the right in Figure 10. The working point at ...
... power will be generated. The rotor has a synchronous speed implying s = 0 and I’2 = 0. The load current is purely inductive implying Im + I1 = IC. This means the capacitors generate the magnetization current and the load current. This is the situation at the right in Figure 10. The working point at ...
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Advanced Digital Design [VU] Homework III - Sample Solution Contents
... DIMS circuits require an array of C-gates to exclusively map every possible (valid) input data word to a dedicated signal (one-hot code). Note that the C-gates always wait until all input signals carry valid data or empty tokens before they produce a one or zero on their outputs. In a second stage, ...
... DIMS circuits require an array of C-gates to exclusively map every possible (valid) input data word to a dedicated signal (one-hot code). Note that the C-gates always wait until all input signals carry valid data or empty tokens before they produce a one or zero on their outputs. In a second stage, ...
Steady Electric Current
... Calculation for E, J • Consider how the resistance are connected. – Serial connection (integration using R dR ) Constant current: J I a current S – Parallel connection (integration using G dG ) V Constant voltage: E a L ...
... Calculation for E, J • Consider how the resistance are connected. – Serial connection (integration using R dR ) Constant current: J I a current S – Parallel connection (integration using G dG ) V Constant voltage: E a L ...
SN65MLVD040 数据资料 dataSheet 下载
... Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absol ...
... Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absol ...
SEFUSE Thermal Cutoff NEC SCHOTT Components` SEFUSE is a
... SEFUSE so that it can detect abnormal heat as quick as possible. The thermal cutoff operates when the inside thermal element melts. Therefore,if the inside thermal element does not reach the operating temperature, the thermal cutoff does not operate, even if the ambient temperature rises to the oper ...
... SEFUSE so that it can detect abnormal heat as quick as possible. The thermal cutoff operates when the inside thermal element melts. Therefore,if the inside thermal element does not reach the operating temperature, the thermal cutoff does not operate, even if the ambient temperature rises to the oper ...
Design and Development of IGBT- Based Pulse Voltage Generator
... provide a DC current. Since the current source converter ASDs are bigger, less efficient and have a higher cost than voltage source converter (VSC) ASDs, they are being replaced by voltage source converter ASDs in a wide range of applications. In voltage source converter ASDs, capacitors are used as ...
... provide a DC current. Since the current source converter ASDs are bigger, less efficient and have a higher cost than voltage source converter (VSC) ASDs, they are being replaced by voltage source converter ASDs in a wide range of applications. In voltage source converter ASDs, capacitors are used as ...
Word
... The recloser mechanism shall consist of a bi-stable magnetic actuator capable of fast opening and closing operations with no recharging delay. Bi-stable means that no operating power is required to hold the unit open or closed. ...
... The recloser mechanism shall consist of a bi-stable magnetic actuator capable of fast opening and closing operations with no recharging delay. Bi-stable means that no operating power is required to hold the unit open or closed. ...
martinsville,va - Martinsville, Virginia
... In the event the bid from the lowest responsible bidder exceeds available funds, the City may negotiate with the apparent low bidder to obtain a contract price within available funds. The procedures for such negotiations shall be as follows: a. City, Engineer, and apparent low bidder together will r ...
... In the event the bid from the lowest responsible bidder exceeds available funds, the City may negotiate with the apparent low bidder to obtain a contract price within available funds. The procedures for such negotiations shall be as follows: a. City, Engineer, and apparent low bidder together will r ...
CMPWR150 - 500 mA/3.3 V SmartOR TM Power Regulator
... (RS). This was measured to be approximately 0.2 W. It is recommended that this effective source impedance be no greater than 0.25 W to ensure precise switching is maintained during VCC selection and deselection. Both the rise and fall times during VCC power−up/down sequencing were controlled at a 20 ...
... (RS). This was measured to be approximately 0.2 W. It is recommended that this effective source impedance be no greater than 0.25 W to ensure precise switching is maintained during VCC selection and deselection. Both the rise and fall times during VCC power−up/down sequencing were controlled at a 20 ...
7 Results and analysis - Revistas UNAL
... combined with Monte Carlo simulation. The proposed method allows to build the distribution function of indicator SARFI at bus bars of interest, considering the randomness of: i) location of faults in lines; (ii) generation dispatch, and (iii) variation of the pre-fault voltage in the bus bar at the ...
... combined with Monte Carlo simulation. The proposed method allows to build the distribution function of indicator SARFI at bus bars of interest, considering the randomness of: i) location of faults in lines; (ii) generation dispatch, and (iii) variation of the pre-fault voltage in the bus bar at the ...
PDF
... The recloser mechanism shall consist of a bi-stable magnetic actuator capable of fast opening and closing operations with no recharging delay. Bi-stable means that no operating power is required to hold the unit open or closed. ...
... The recloser mechanism shall consist of a bi-stable magnetic actuator capable of fast opening and closing operations with no recharging delay. Bi-stable means that no operating power is required to hold the unit open or closed. ...
P82979
... The AMT Multitone Synchronized (Sync) Strobe Appliances are UL Listed under Standard 1971 for Emergency Appliances for the Hearing Impaired and UL Standard 464 for SL Audible Signal Appliances. They are listed for indoor use only with the backboxes specified in these instructions (See Mounting Optio ...
... The AMT Multitone Synchronized (Sync) Strobe Appliances are UL Listed under Standard 1971 for Emergency Appliances for the Hearing Impaired and UL Standard 464 for SL Audible Signal Appliances. They are listed for indoor use only with the backboxes specified in these instructions (See Mounting Optio ...
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.