P27
... 1. Does the insertion of an ammeter into a circuit to measure the current in that circuit affect the value of the current to be measured? Is it necessary for an ammeter to have a low resistance or a high resistance? Explain. 2. Does the insertion of a voltmeter into a circuit to measure the voltage ...
... 1. Does the insertion of an ammeter into a circuit to measure the current in that circuit affect the value of the current to be measured? Is it necessary for an ammeter to have a low resistance or a high resistance? Explain. 2. Does the insertion of a voltmeter into a circuit to measure the voltage ...
Chapter 4
... from one form to another • This can be useful for simplifying circuits • The principle behind all of these transformations is equivalence ...
... from one form to another • This can be useful for simplifying circuits • The principle behind all of these transformations is equivalence ...
Operational Amplifiers
... It has infinite common-mode rejection, power supply rejection, open-loop bandwidth, output voltage range, output current capability and slew rate It also has zero output resistance, input-bias currents, inputoffset current, and input-offset voltage. ...
... It has infinite common-mode rejection, power supply rejection, open-loop bandwidth, output voltage range, output current capability and slew rate It also has zero output resistance, input-bias currents, inputoffset current, and input-offset voltage. ...
Representations of any two different signals
... • Output signal is shifted by DC voltage (Vo) – Reduced allowable signal swing ...
... • Output signal is shifted by DC voltage (Vo) – Reduced allowable signal swing ...
KL Series 3000 Watt Regulated High Voltage DC Power Supplies
... The KL Series…sophisticated, high power, high voltage power supplies…is designed to meet the growing demands from both users and electric utilities for switching power supplies that exhibit improved input power factors. Power factor is defined as the ratio of real power (measured in watts) to appare ...
... The KL Series…sophisticated, high power, high voltage power supplies…is designed to meet the growing demands from both users and electric utilities for switching power supplies that exhibit improved input power factors. Power factor is defined as the ratio of real power (measured in watts) to appare ...
iSOLATeD DC/DC COnTrOLLerS fOr inTerMeDiATe BuS vOLTAgeS
... MOSFET drivers allow each IC to drive both the low- and high-side switching devices in a half-bridge converter. The oscillator frequency is programmable from 200 kHz to 1 MHz, the widest such range in the industry, and can be synchronized to an external sync source. Self-driven synchronous rectifica ...
... MOSFET drivers allow each IC to drive both the low- and high-side switching devices in a half-bridge converter. The oscillator frequency is programmable from 200 kHz to 1 MHz, the widest such range in the industry, and can be synchronized to an external sync source. Self-driven synchronous rectifica ...
Simulation Using WinSPICE - West Virginia University
... noise, pole-zero, sensitivity, temperature, transfer function ...
... noise, pole-zero, sensitivity, temperature, transfer function ...
LM150/250 LM350
... is used, it is sometimes necessary to include protection diodes to prevent the capacitor from discharging through internal low current paths and damaging the device. In general, the best type of capacitors to use are solid tantalum. Solid tantalum capacitors have low impedance even at high frequenci ...
... is used, it is sometimes necessary to include protection diodes to prevent the capacitor from discharging through internal low current paths and damaging the device. In general, the best type of capacitors to use are solid tantalum. Solid tantalum capacitors have low impedance even at high frequenci ...
Experiment 10: Inverting Amplifier
... – Plot the output voltage vs. the input voltage using the X-Y plot function on the oscilloscope. – Export the data from the oscilloscope and use MatLAB to plot the DC voltage transfer characteristic. • Determine – the gain of the inverting amplifier in the linear region of the voltage transfer chara ...
... – Plot the output voltage vs. the input voltage using the X-Y plot function on the oscilloscope. – Export the data from the oscilloscope and use MatLAB to plot the DC voltage transfer characteristic. • Determine – the gain of the inverting amplifier in the linear region of the voltage transfer chara ...
South Pasadena · AP Chemistry
... Draw a diagram with the electrodes of each battery labelled + and and show how the two batteries should be connected. ...
... Draw a diagram with the electrodes of each battery labelled + and and show how the two batteries should be connected. ...
Document
... include renewable energy sources, such as photovoltaic (PV) panels and fuel cell stacks, and backup sources, such as a battery set. The voltage levels of these green power sources are low (typically12~48 V); thus, high step-up DC/DC converters are required and have been widely utilized in green powe ...
... include renewable energy sources, such as photovoltaic (PV) panels and fuel cell stacks, and backup sources, such as a battery set. The voltage levels of these green power sources are low (typically12~48 V); thus, high step-up DC/DC converters are required and have been widely utilized in green powe ...
Interharmonics - Working Group
... Figure 7 – rms Voltage Deviation with 0.2% Distortion (50 Hz Power System) As shown in the figure, at interharmonic frequencies higher than twice the power frequency, the modulation impact on the rms value is small compared to the impact in the frequency range below the second harmonic. The IEC flic ...
... Figure 7 – rms Voltage Deviation with 0.2% Distortion (50 Hz Power System) As shown in the figure, at interharmonic frequencies higher than twice the power frequency, the modulation impact on the rms value is small compared to the impact in the frequency range below the second harmonic. The IEC flic ...
The high power version of the WS19
... Large DC motors, like the one in the rotary here, have the unfortunate characteristic of appearing to be virtually a dead short when they are stationary. When the 12V DC is applied a huge surge current (200 – 300 amps has been recorded) would flow for a short time while the motor is still thinking a ...
... Large DC motors, like the one in the rotary here, have the unfortunate characteristic of appearing to be virtually a dead short when they are stationary. When the 12V DC is applied a huge surge current (200 – 300 amps has been recorded) would flow for a short time while the motor is still thinking a ...
Document
... arrowhead on the emitter indicates the direction of ‘conventional’ current flow that is, opposite to the electron flow. ...
... arrowhead on the emitter indicates the direction of ‘conventional’ current flow that is, opposite to the electron flow. ...
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.