Systems Concepts - Keith E. Holbert
... with time is a time-invariant system; that is, the rule used to compute the system output does not depend on the time at which the input is applied • The coefficients to any algebraic or differential equations must be constant for the system to be time-invariant • An RLC circuit initially at rest is ...
... with time is a time-invariant system; that is, the rule used to compute the system output does not depend on the time at which the input is applied • The coefficients to any algebraic or differential equations must be constant for the system to be time-invariant • An RLC circuit initially at rest is ...
TPS71501-Q1 数据资料 dataSheet 下载
... close to the device, is recommended to improve transient response and noise rejection of the power supply as a whole. A higher-value input capacitor may be necessary if large, fast-rise-time load transients are anticipated and the device is located several inches from the power source. The TPS715xx ...
... close to the device, is recommended to improve transient response and noise rejection of the power supply as a whole. A higher-value input capacitor may be necessary if large, fast-rise-time load transients are anticipated and the device is located several inches from the power source. The TPS715xx ...
AN-300 Simple Circuit Detects Loss of 4
... TI assumes no liability for applications assistance or the design of Buyers’ products. Buyers are responsible for their products and applications using TI components. To minimize the risks associated with Buyers’ products and applications, Buyers should provide adequate design and operating safeguar ...
... TI assumes no liability for applications assistance or the design of Buyers’ products. Buyers are responsible for their products and applications using TI components. To minimize the risks associated with Buyers’ products and applications, Buyers should provide adequate design and operating safeguar ...
The Coin Detector Circuit - Asee peer logo
... The 74221 Dual Monostable Multivibrator IC is used for the One-Shot circuits. When the input voltage V6 goes from LOW to HIGH, the first one-shot circuit produces a pulse. The width of this pulse is: PULSEWIDTH #1 = 0.7C 7 R31 = 0.7(22 µF )(120kΩ ) = 1.85s This is the time that the outputs V6 throu ...
... The 74221 Dual Monostable Multivibrator IC is used for the One-Shot circuits. When the input voltage V6 goes from LOW to HIGH, the first one-shot circuit produces a pulse. The width of this pulse is: PULSEWIDTH #1 = 0.7C 7 R31 = 0.7(22 µF )(120kΩ ) = 1.85s This is the time that the outputs V6 throu ...
HCF4066BEY
... and n device in a given switch are biased ON or OFF simultaneously by the control signal. As shown in schematic diagram, the well of the n-channel device on each switch is either tied to the input when the switch is ON or to VSS when the switch is OFF. This configuration eliminates the variation of ...
... and n device in a given switch are biased ON or OFF simultaneously by the control signal. As shown in schematic diagram, the well of the n-channel device on each switch is either tied to the input when the switch is ON or to VSS when the switch is OFF. This configuration eliminates the variation of ...
High-Resolution Electrometer with Micromechanical Variable
... variable capacitor and input transistor are located in separate packages performs poorly because of the large parasitic capacitances associated with the packages and interconnects. An integrated process combining CMOS and MEMS provides low parasitic capacitance, but this performance gain is cancelle ...
... variable capacitor and input transistor are located in separate packages performs poorly because of the large parasitic capacitances associated with the packages and interconnects. An integrated process combining CMOS and MEMS provides low parasitic capacitance, but this performance gain is cancelle ...
Preview of Period 13: Electrical Resistance and Joule Heating
... area, and resistivity. Resistivity of a wire depends on its temperature and the material from which the wire is made. ...
... area, and resistivity. Resistivity of a wire depends on its temperature and the material from which the wire is made. ...
COMBOLIGHT Remodel Recessed w/ Trim - 12V AR70 - 4 Light Square
... wiring, 6 #12 90º C supply conductors or 60º C for end of run. The fixture is also UL listed as ‘access above ceiling not required’. ...
... wiring, 6 #12 90º C supply conductors or 60º C for end of run. The fixture is also UL listed as ‘access above ceiling not required’. ...
An Improved State Space Average Model of Buck DC
... DC-DC Power converters are one of the standard components of switch mode power supplies (SMPS). They are used in personal computers, laptops, PDAs, office appliances, aircrafts, satellite communication equipment and DC motor starting circuits. The input of these converters is an unregulated DC volta ...
... DC-DC Power converters are one of the standard components of switch mode power supplies (SMPS). They are used in personal computers, laptops, PDAs, office appliances, aircrafts, satellite communication equipment and DC motor starting circuits. The input of these converters is an unregulated DC volta ...
SiGe BiCMOS Precision Voltage References for
... Fig. 9 shows the change in the output voltage as the power supply changes, at five different temperatures, for the Cryo Ge #2 version of the reference circuit. As can be seen, the line regulation remains well-behaved across the extreme temperature range. A comparison of the BGRs presented in this wo ...
... Fig. 9 shows the change in the output voltage as the power supply changes, at five different temperatures, for the Cryo Ge #2 version of the reference circuit. As can be seen, the line regulation remains well-behaved across the extreme temperature range. A comparison of the BGRs presented in this wo ...
Loop Power Sensors Loop Power, 4
... output a 4-20 mA current that is proportional to the overall vibration of the equipment or machinery they are monitoring. This output current has a range of 4-20 mA (4 mA normally representing the sensor’s zero-level output, and 20 mA representing the sensor’s full-scale output). Only two wires are ...
... output a 4-20 mA current that is proportional to the overall vibration of the equipment or machinery they are monitoring. This output current has a range of 4-20 mA (4 mA normally representing the sensor’s zero-level output, and 20 mA representing the sensor’s full-scale output). Only two wires are ...
STEVAL-ILL045V1
... drive circuitry for LED replacements for 40 W incandescent or equivalent compact-fluorescent lamps. The HVLED815PF is a new integrated power controller using primary-side control to achieve LED current regulation within +/-5%. (It also has primary-side voltage regulation, used here for open load pro ...
... drive circuitry for LED replacements for 40 W incandescent or equivalent compact-fluorescent lamps. The HVLED815PF is a new integrated power controller using primary-side control to achieve LED current regulation within +/-5%. (It also has primary-side voltage regulation, used here for open load pro ...
S1610C
... Listed sound output up to 90 dBA at 10 feet, and a listed frequency response of 400 to 4000 Hz. Strobes shall use filtered power or unfiltered power supply (full-wave-rectified). All models shall have provisions for standard reverse polarity type supervision and IN/OUT field wiring using terminals t ...
... Listed sound output up to 90 dBA at 10 feet, and a listed frequency response of 400 to 4000 Hz. Strobes shall use filtered power or unfiltered power supply (full-wave-rectified). All models shall have provisions for standard reverse polarity type supervision and IN/OUT field wiring using terminals t ...
CA800011EN
... the hazards associated with manual internal tap changing of distribution transformers because line crews need not be exposed to high-voltage conductors and hot transformer fluid. They also eliminate the need to dismount pole-type transformers for voltage adjustment and prevent exposure of the transf ...
... the hazards associated with manual internal tap changing of distribution transformers because line crews need not be exposed to high-voltage conductors and hot transformer fluid. They also eliminate the need to dismount pole-type transformers for voltage adjustment and prevent exposure of the transf ...
MAX4506/MAX4507 Fault-Protected, High-Voltage Signal
... rails. If the power supplies to the device are off, the device clamps the output to 0V. The MAX4506/ MAX4507 provide protection for input signals up to ±36V with the power supplies on and ±40V with the power supplies off. The MAX4506/MAX4507 protect other integrated circuits connected to its output ...
... rails. If the power supplies to the device are off, the device clamps the output to 0V. The MAX4506/ MAX4507 provide protection for input signals up to ±36V with the power supplies on and ±40V with the power supplies off. The MAX4506/MAX4507 protect other integrated circuits connected to its output ...
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.