Starting Performance of Synchronous Motors
... Calculations are two dimensional. A flux line or a point with zero potential is always specified. The flux in webers per meter length between two points is simply the difference between the vector potentials. They can be calculated as scalars with program FLD11 if phase angles are of no importance, ...
... Calculations are two dimensional. A flux line or a point with zero potential is always specified. The flux in webers per meter length between two points is simply the difference between the vector potentials. They can be calculated as scalars with program FLD11 if phase angles are of no importance, ...
PTH08T220W,
... For output voltages ≤ 1.2 V, at nominal operating frequency, the output ripple may increase (typically 2×) when operating at input voltages greater than (VO × 11). When using the SmartSync feature to adjust the switching frequency, see the SmartSync Considerations section of the datasheet for furthe ...
... For output voltages ≤ 1.2 V, at nominal operating frequency, the output ripple may increase (typically 2×) when operating at input voltages greater than (VO × 11). When using the SmartSync feature to adjust the switching frequency, see the SmartSync Considerations section of the datasheet for furthe ...
Lifeway II Micro Series UPS User Manual
... The temperature should be near 25°C (77°F) for optimum battery performance. Batteries are less efficient at temperatures below 18°C (65°F), and high temperatures reduce battery life. Typically, at about 35°C (95°F), battery life is half of what it would be at a normal temperature of 25°C (77°F). At ...
... The temperature should be near 25°C (77°F) for optimum battery performance. Batteries are less efficient at temperatures below 18°C (65°F), and high temperatures reduce battery life. Typically, at about 35°C (95°F), battery life is half of what it would be at a normal temperature of 25°C (77°F). At ...
OIP A 67 dBm Multistacked Junction Varactor 3
... different tone spacings for a two-tone input signal with the f (capacitance at zero bias voltage = 2:7 pF, V = 5 V ). ...
... different tone spacings for a two-tone input signal with the f (capacitance at zero bias voltage = 2:7 pF, V = 5 V ). ...
AP7173 1.5A LOW DROPOUT LINEAR REGULATOR WITH PROGRAMMABLE SOFT-START
... The EN pin can be used with standard digital signals or relatively slow-ramping analog signals. Pulling the VEN below 0.4V turns the regulator off, while driving the VEN above 1.1V turns the regulator on. Figure 30 shows an example where an RC circuit is used to delay start the AP7173. If not used, ...
... The EN pin can be used with standard digital signals or relatively slow-ramping analog signals. Pulling the VEN below 0.4V turns the regulator off, while driving the VEN above 1.1V turns the regulator on. Figure 30 shows an example where an RC circuit is used to delay start the AP7173. If not used, ...
External Power SupplyTest Method
... No load efficiency would by definition be 0 when calculated on a percentage basis (see 3b above). In this document, no load power is defined as the wattage of real power (ac) consumed by a power supply operating in the no load condition. e. UUT UUT is an acronym for “unit under test,” which in this ...
... No load efficiency would by definition be 0 when calculated on a percentage basis (see 3b above). In this document, no load power is defined as the wattage of real power (ac) consumed by a power supply operating in the no load condition. e. UUT UUT is an acronym for “unit under test,” which in this ...
Taser International, Inc. v. Stinger Systmes, Inc., Case No. CV 07
... negative polarity, but a bridge rectifier circuit on the secondary reversed the voltage so that ...
... negative polarity, but a bridge rectifier circuit on the secondary reversed the voltage so that ...
Did Tesla`s Wardenclyffe tower generate squarewaves?
... In that case the coil's RF output voltage will ramp up slowly, as if the oscillating coil was a kind of "capacitor" being charged up. The secondary coil is an energy storage component. But it's being charged up with AC high frequency, not with DC! Doesn't this mean we can treat our coil much like a ...
... In that case the coil's RF output voltage will ramp up slowly, as if the oscillating coil was a kind of "capacitor" being charged up. The secondary coil is an energy storage component. But it's being charged up with AC high frequency, not with DC! Doesn't this mean we can treat our coil much like a ...
USB-1408FS User`s Guide
... cable from the computer and then reconnect it. This should restore communication, and the LED should turn on. Allow the USB-1408FS to operate for at least 30 minutes before using the device. This warm up time is required to achieve the specified rated accuracy of measurements. ...
... cable from the computer and then reconnect it. This should restore communication, and the LED should turn on. Allow the USB-1408FS to operate for at least 30 minutes before using the device. This warm up time is required to achieve the specified rated accuracy of measurements. ...
LTM8029 - 36VIN, 600mA Step-Down μModule Converter with 5μA Quiescent Current
... that is off when the output is in regulation, allowing an external resistor to pull the PGOOD pin high. Power good is valid when the LTM8029 is enabled and VIN is above 4.5V. The LTM8029 features the ability to skip the off-time in switching cycles when the input voltage approaches the target output ...
... that is off when the output is in regulation, allowing an external resistor to pull the PGOOD pin high. Power good is valid when the LTM8029 is enabled and VIN is above 4.5V. The LTM8029 features the ability to skip the off-time in switching cycles when the input voltage approaches the target output ...
AN583: Safety Considerations and Layout
... Assume a designer is designing telecom equipment (e.g., a blade server) whose electronic board is used in a Pollution Degree 2 environment. Also assume the server's control board powers from the main line and is universally powered (up to 250 VAC). Q: What type of isolation components are required b ...
... Assume a designer is designing telecom equipment (e.g., a blade server) whose electronic board is used in a Pollution Degree 2 environment. Also assume the server's control board powers from the main line and is universally powered (up to 250 VAC). Q: What type of isolation components are required b ...
J.M. Rivas, J. Shafran, R.S. Wahby, and D.J. Perreault, “New Architectures for Radio-Frequency dc/dc Power Conversion,” 2004 IEEE Power Electronics Specialists Conference, Aachen, Germany, June 2004, pp. 4074-4084.
... demand for power electronics whose capabilities greatly exceed what is presently achievable. A challenge of particular importance is the miniaturization of power electronic circuits. Miniaturization is difficult given the energy storage and loss limitations of passive components used in the conversi ...
... demand for power electronics whose capabilities greatly exceed what is presently achievable. A challenge of particular importance is the miniaturization of power electronic circuits. Miniaturization is difficult given the energy storage and loss limitations of passive components used in the conversi ...
Application Note: Sensors and Flexible Heaters in Sleep Apnea
... application to detect presence or absence of airflow High stability: Reduces errors due to thermal effects and null shift to provide accurate readings over time, often eliminating need for system calibration after printed circuit board mount, and periodically over time Low pressure drop: Low p ...
... application to detect presence or absence of airflow High stability: Reduces errors due to thermal effects and null shift to provide accurate readings over time, often eliminating need for system calibration after printed circuit board mount, and periodically over time Low pressure drop: Low p ...
Set Reset J K Q Q` CLK
... across some section of your circuit where you would like to know the difference in potential. You feed the ‘high’ line to the input of the circuit, the low line to the common ground (the upside down conifer-like symbols). An internal voltage within the voltmeter begins to ramp up from zero (the saw ...
... across some section of your circuit where you would like to know the difference in potential. You feed the ‘high’ line to the input of the circuit, the low line to the common ground (the upside down conifer-like symbols). An internal voltage within the voltmeter begins to ramp up from zero (the saw ...
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.