ELECTRICAL/ELECTRONIC SYSTEMS uNiT 1: FuNDAMENTAL
... forced through the circuit is reduced. Conversely, if resistance is reduced, a greater number of electrons is allowed through the circuit. ...
... forced through the circuit is reduced. Conversely, if resistance is reduced, a greater number of electrons is allowed through the circuit. ...
ADM4073 数据手册DataSheet 下载
... The ADM4073 is a low cost, high-side, current-sense amplifier ideal for small portable applications, such as cell phones, notebook computers, PDAs, and other systems where current monitoring is required. The device is available in three different gain models, eliminating the need for gain-setting re ...
... The ADM4073 is a low cost, high-side, current-sense amplifier ideal for small portable applications, such as cell phones, notebook computers, PDAs, and other systems where current monitoring is required. The device is available in three different gain models, eliminating the need for gain-setting re ...
7. Application Circuits / Converter Array Design Considerations
... Logic Disable. (Figure 7–1) The GATE IN pin of the module may be used to turn the module on or off. When GATE IN is pulled low (<0.65 V @ 6 mA, referenced to –Vin), the module is turned off. When GATE IN is floating (open collector), the module is turned on. The open circuit voltage of the GATE IN p ...
... Logic Disable. (Figure 7–1) The GATE IN pin of the module may be used to turn the module on or off. When GATE IN is pulled low (<0.65 V @ 6 mA, referenced to –Vin), the module is turned off. When GATE IN is floating (open collector), the module is turned on. The open circuit voltage of the GATE IN p ...
Chaos: A Nonlinear Phenomenon in AC-DC Power
... [1] provides dc voltage at the output end with having high input power factor. A low power factor decreases the power level in the utility grid, with a high harmonic distortion to the line current that causes EMI problems. It is usually assumed ripple free output by considering a huge output capacit ...
... [1] provides dc voltage at the output end with having high input power factor. A low power factor decreases the power level in the utility grid, with a high harmonic distortion to the line current that causes EMI problems. It is usually assumed ripple free output by considering a huge output capacit ...
Name :
... 18. Add another load to one of your pathways. Notice the brightness of the two loads one pathway and the brightness of the single load in the other pathway. What can you conclude about resistance and current in different pathways of a parallel circuit? With parallel circuits, the current can be diff ...
... 18. Add another load to one of your pathways. Notice the brightness of the two loads one pathway and the brightness of the single load in the other pathway. What can you conclude about resistance and current in different pathways of a parallel circuit? With parallel circuits, the current can be diff ...
BFR380L3
... BFR380L3 Linear Low Noise Silicon Bipolar RF Transistor • High current capability and low noise figure for wide dynamic range • Collector design supports supply voltage up to 5V • Ideal for low phase noise oscillators up to 3.5 GHz • Low noise figure 1.1 dB at 1.8 GHz • Pb-free (RoHS compliant) and ...
... BFR380L3 Linear Low Noise Silicon Bipolar RF Transistor • High current capability and low noise figure for wide dynamic range • Collector design supports supply voltage up to 5V • Ideal for low phase noise oscillators up to 3.5 GHz • Low noise figure 1.1 dB at 1.8 GHz • Pb-free (RoHS compliant) and ...
data collection
... Analog-to-Digital Converters (ADCs) convert a voltage to a digital word for the computer to read. ADCs are specified by their resolution, voltage range, and sampling rate. The resolution is finite and is given as a number of bits such as 8-bit or 12-bit or 16bit. This specifies the number of discret ...
... Analog-to-Digital Converters (ADCs) convert a voltage to a digital word for the computer to read. ADCs are specified by their resolution, voltage range, and sampling rate. The resolution is finite and is given as a number of bits such as 8-bit or 12-bit or 16bit. This specifies the number of discret ...
Not Recommended for New Designs
... (Figure 1). All oscillator (100kHz), control, and currentlimit circuitry, including a 5A power switch (2A for MAX726), are included on-chip. The oscillator turns on the switch (VSW) at the beginning of each clock cycle. The switch turns off at a point later in the clock cycle, which is a function of ...
... (Figure 1). All oscillator (100kHz), control, and currentlimit circuitry, including a 5A power switch (2A for MAX726), are included on-chip. The oscillator turns on the switch (VSW) at the beginning of each clock cycle. The switch turns off at a point later in the clock cycle, which is a function of ...
PENTEK XE-6, XE-8 PENTEK
... filter circuits, such as a reactor, between an inverter and a motor in order to prevent a highest value of voltage wave (peak voltage) from exceeding 1000V (volts) for surge protection. Since the motor for a deep well has the long cable, the surge voltage by reflective resonance of a cable may incre ...
... filter circuits, such as a reactor, between an inverter and a motor in order to prevent a highest value of voltage wave (peak voltage) from exceeding 1000V (volts) for surge protection. Since the motor for a deep well has the long cable, the surge voltage by reflective resonance of a cable may incre ...
HVRA Basic Electronics Class I April 2015
... A series of basic electronics classes will be made monthly, on line, to both members and non members alike. The goal is to teach both theory and troubleshooting of vacuum tube equipment at the same time. In order to successfully troubleshoot electronic equipment, one must be able to understand basic ...
... A series of basic electronics classes will be made monthly, on line, to both members and non members alike. The goal is to teach both theory and troubleshooting of vacuum tube equipment at the same time. In order to successfully troubleshoot electronic equipment, one must be able to understand basic ...
Example 18-10 Power in Series and Parallel Circuits
... series and in parallel. In each case we’ll use the equivalent resistance to find the current through the battery, then use Equation 18-23 to determine the power provided by the battery. If the resistors are in series, the current through each is the same as the current through the battery, so we’ll ...
... series and in parallel. In each case we’ll use the equivalent resistance to find the current through the battery, then use Equation 18-23 to determine the power provided by the battery. If the resistors are in series, the current through each is the same as the current through the battery, so we’ll ...
Method of Selection of dv/dt for EMI Current Ringing Attenuation
... been proposed. These techniques allow EMI reduction by means of the control of rise and fall times of collectoremitter voltages. However, a compromise is needed between lowering EMI and increasing switching losses that limits a freedom of the selection appropriate dv/dt. The main objective of this p ...
... been proposed. These techniques allow EMI reduction by means of the control of rise and fall times of collectoremitter voltages. However, a compromise is needed between lowering EMI and increasing switching losses that limits a freedom of the selection appropriate dv/dt. The main objective of this p ...
Adobe Acrobat Reader ()
... In order to make things easier to remember physics here is extremely simplified and takes full advantage of rounding numbers and moving decimal point around to get us into a ballpark of an answer. It is what engineers around the world do when they refer to "back of the envelope" calculations. These ...
... In order to make things easier to remember physics here is extremely simplified and takes full advantage of rounding numbers and moving decimal point around to get us into a ballpark of an answer. It is what engineers around the world do when they refer to "back of the envelope" calculations. These ...
A Virtual Thunderstorm: Experimenting with a Kelvin Electrostatic
... The objective of this project was to determine whether variation of water flow rate on a Kelvin Electrostatic Generator has a significant impact on the DC voltage as well as the time in between each spark produced by the generator. My hypothesis was that an increase or decrease in water flow rate wo ...
... The objective of this project was to determine whether variation of water flow rate on a Kelvin Electrostatic Generator has a significant impact on the DC voltage as well as the time in between each spark produced by the generator. My hypothesis was that an increase or decrease in water flow rate wo ...
Basic_Lab_Procedure - Courses
... reliability of the results of a physical measurement. It is defined in Webster's New Collegiate Dictionary as "freedom from mistake or error; correctness". We should distinguish accuracy from precision, which according to Webster's is "the degree of refinement with which an operation is performed or ...
... reliability of the results of a physical measurement. It is defined in Webster's New Collegiate Dictionary as "freedom from mistake or error; correctness". We should distinguish accuracy from precision, which according to Webster's is "the degree of refinement with which an operation is performed or ...
Conductance G of a resistance R is defined as the reciprocal of R, G
... All physical devices need to be modeled appropriately in terms of circuit elements so that their characteristics can be taken into account in circuit analysis. In this notes, we emphasize modeling of practical voltage and current sources. Modeling of a practical voltage source: An ideal voltage sour ...
... All physical devices need to be modeled appropriately in terms of circuit elements so that their characteristics can be taken into account in circuit analysis. In this notes, we emphasize modeling of practical voltage and current sources. Modeling of a practical voltage source: An ideal voltage sour ...
High-Efficiency Power Amplifier Using Dynamic Power-Supply Voltage for CDMA Applications Gary Hanington,
... A GaAs power MESFET amplifier was constructed using hybrid microstrip techniques. The load impedance at the output of the MESFET was adjusted to approximately 50 . With a maximum drain voltage peak-to-peak swing of 20 V, an output power of 1 W at 950 MHz could be obtained under continuous wave (CW) ...
... A GaAs power MESFET amplifier was constructed using hybrid microstrip techniques. The load impedance at the output of the MESFET was adjusted to approximately 50 . With a maximum drain voltage peak-to-peak swing of 20 V, an output power of 1 W at 950 MHz could be obtained under continuous wave (CW) ...
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.