Redalyc.Electrical energy conversion system design with single
... diagram has a cascade control, where the inner loop controls the output current of the LCL filter in terms of the modulation index amplitude d. The outer control loop is used to regulate the voltage of the panel. This control variable is important because it is closely related to the maximum power p ...
... diagram has a cascade control, where the inner loop controls the output current of the LCL filter in terms of the modulation index amplitude d. The outer control loop is used to regulate the voltage of the panel. This control variable is important because it is closely related to the maximum power p ...
starter / generator motor controller
... 2 START - This connection is used to put the MSK 4413 into START MODE and apply power to the connected motor. V+ is applied to this pin to select this mode. This can be accomplished by a manual switch or some type of controlled relay. This connection drives the input LED of an opto-coupler through a ...
... 2 START - This connection is used to put the MSK 4413 into START MODE and apply power to the connected motor. V+ is applied to this pin to select this mode. This can be accomplished by a manual switch or some type of controlled relay. This connection drives the input LED of an opto-coupler through a ...
Our Friend the Direct Box
... box known as "active". Active direct boxes can have a number of advantages. They can be made to provide phantom power, have extremely high input and low output impedance and provide superior gain. Here, however we are talking about the difference between a thirty dollar product and a three hundred d ...
... box known as "active". Active direct boxes can have a number of advantages. They can be made to provide phantom power, have extremely high input and low output impedance and provide superior gain. Here, however we are talking about the difference between a thirty dollar product and a three hundred d ...
Two New Digitally Controlled Electronic Loads Offer Remarkable
... MOSFET’s, etc.), and all manner of other power devices (batteries, current and voltage sources, capacitors, etc.) normally requires putting those devices under load. Historically, electronic loads have been implemented as expensive “boxes” with assorted dials, knobs, displays, and unnecessarily high ...
... MOSFET’s, etc.), and all manner of other power devices (batteries, current and voltage sources, capacitors, etc.) normally requires putting those devices under load. Historically, electronic loads have been implemented as expensive “boxes” with assorted dials, knobs, displays, and unnecessarily high ...
What Is Sumo Robot? Sumo robot is an electronic device which is
... A DC motor has a two wire connection. All drive power is supplied over these two wires— think of a light bulb. When you turn on a DC motor, it just starts spinning round and round. Most DC motors are pretty fast, about 5000 RPM (revolutions per minute). With the DC motor, its speed (or more accurate ...
... A DC motor has a two wire connection. All drive power is supplied over these two wires— think of a light bulb. When you turn on a DC motor, it just starts spinning round and round. Most DC motors are pretty fast, about 5000 RPM (revolutions per minute). With the DC motor, its speed (or more accurate ...
Document
... Simple primary side control solution to enable half-bridge DC-Bus converters for 48V distributed systems with reduced component count and board space. Integrated 50% duty cycle oscillator and half-bridge driver IC in a single SO-8 package Programmable switching frequency with up to 500 kHz max per c ...
... Simple primary side control solution to enable half-bridge DC-Bus converters for 48V distributed systems with reduced component count and board space. Integrated 50% duty cycle oscillator and half-bridge driver IC in a single SO-8 package Programmable switching frequency with up to 500 kHz max per c ...
4.2 Digital Transmission
... •It seems that a large is needed for rapid variations of m(t) to reduce the slope-overload distortion and a small is needed for slowly varying m(t) to reduce the granular noise. The optimum can only be a compromise between the two cases. •To satisfy both cases, an adaptive DM is needed, where ...
... •It seems that a large is needed for rapid variations of m(t) to reduce the slope-overload distortion and a small is needed for slowly varying m(t) to reduce the granular noise. The optimum can only be a compromise between the two cases. •To satisfy both cases, an adaptive DM is needed, where ...
27.09.2013 1 / 2 QUESTION: What is the difference between cosine
... It is a real picture of line power. Voltage is sinusoidal, but not current. It is also easy to see that the fundamental waves of voltage and current almost have unity phase. Because the voltage is sinusoidal, U = 0 V for > 1, it means that only on the fundamental components contribute to the RMS val ...
... It is a real picture of line power. Voltage is sinusoidal, but not current. It is also easy to see that the fundamental waves of voltage and current almost have unity phase. Because the voltage is sinusoidal, U = 0 V for > 1, it means that only on the fundamental components contribute to the RMS val ...
measuring voltage waveforms from outside signal cables
... waveform that differentiates the source voltage waveform, albeit in an unstable manner. This voltage signal is being captured via capacitive coupling, facilitated by an equivalent capacitor that forms between the conductor inside the insulated cable and the metal terminal on the tip of the probe. To ...
... waveform that differentiates the source voltage waveform, albeit in an unstable manner. This voltage signal is being captured via capacitive coupling, facilitated by an equivalent capacitor that forms between the conductor inside the insulated cable and the metal terminal on the tip of the probe. To ...
Test the Flexibility of Substrates and Signal Cables
... ● An increase in the resistance value and number of flexes for a broken wire can also be measured by counting the number of flexes using the integration function of pulse digital inputs. Furthermore, the signal at that point can also be output using the alarm output terminal. ...
... ● An increase in the resistance value and number of flexes for a broken wire can also be measured by counting the number of flexes using the integration function of pulse digital inputs. Furthermore, the signal at that point can also be output using the alarm output terminal. ...
Chapter 4 (Part 2) - Digital Transmission
... at a rate of Nyquist’s sampling frequency. □ Nyquist’s Sampling Theorem : The original information signal can be reconstructed at the receiver with minimal distortion if the sampling rate in the pulse modulation system equal to or greater than twice the maximum information signal frequency. ...
... at a rate of Nyquist’s sampling frequency. □ Nyquist’s Sampling Theorem : The original information signal can be reconstructed at the receiver with minimal distortion if the sampling rate in the pulse modulation system equal to or greater than twice the maximum information signal frequency. ...
LORD Wonder Box® Device Controller Kit
... Values stated in these instructions represent typical values as not all tests are run on each lot of material produced. For formalized product specifications for specific product end uses, contact the Customer Support Center. Information provided herein is based upon tests believed to be reliable. I ...
... Values stated in these instructions represent typical values as not all tests are run on each lot of material produced. For formalized product specifications for specific product end uses, contact the Customer Support Center. Information provided herein is based upon tests believed to be reliable. I ...
Mitsubishi Electric Announces Sale of Switchable Power Amplifier Module for WCDMA Applications. （PDF：175KB）
... With the increasing high function and multi-band/mode operations in cellular handsets in recent years, developers have been trying to reduce the size and increasing number of necessary components to keep terminals small. To secure talk time, typical WCDMA power amplifiers need an external DC/DC conv ...
... With the increasing high function and multi-band/mode operations in cellular handsets in recent years, developers have been trying to reduce the size and increasing number of necessary components to keep terminals small. To secure talk time, typical WCDMA power amplifiers need an external DC/DC conv ...
Document
... (qZS) three-phase fourleg inverter. In order to cope with the drawbacks of traditional voltage source inverters (VSIs), a qZS three-phase four-leg inverter topology is proposed. This topology features a wide range of voltage gain which is suitable for applications in renewable energy-based power sys ...
... (qZS) three-phase fourleg inverter. In order to cope with the drawbacks of traditional voltage source inverters (VSIs), a qZS three-phase four-leg inverter topology is proposed. This topology features a wide range of voltage gain which is suitable for applications in renewable energy-based power sys ...
Grid-Resilient 125 kW AC/DC Power Conversion System (PCS)
... our proprietary Power Packet Switching Architecture (PPSA) to efficiently transfer energy between its AC and DC power ports. PPSA provides port-to-port electrical isolation, eliminating the need for an external isolation transformer. GRID-RESILIENT Beyond the grid-tied functionality described above, ...
... our proprietary Power Packet Switching Architecture (PPSA) to efficiently transfer energy between its AC and DC power ports. PPSA provides port-to-port electrical isolation, eliminating the need for an external isolation transformer. GRID-RESILIENT Beyond the grid-tied functionality described above, ...
Bipolar transistors II, Page 1 Bipolar Transistors II
... Plot V vs. I for this supply by loading it. Choose several load resistors from 2kΩ to 100Ω. As the current increases do you note any change in the curve? If yes, comment on possible reasons. Note: The zener-regulated pass transistor developed in this lab is an acceptable source of stable voltage to ...
... Plot V vs. I for this supply by loading it. Choose several load resistors from 2kΩ to 100Ω. As the current increases do you note any change in the curve? If yes, comment on possible reasons. Note: The zener-regulated pass transistor developed in this lab is an acceptable source of stable voltage to ...
112 Time-Current Curve A graph showing how long before a circuit
... be downloaded in PDF format. These files contain the most recent changes and updates to the STEP 2000 courses. A unique feature of the quickSTEP site is our pictorial glossary. The pictorial glossary can be accessed from anywhere within a quickSTEP course. This enables the student to look up an unfa ...
... be downloaded in PDF format. These files contain the most recent changes and updates to the STEP 2000 courses. A unique feature of the quickSTEP site is our pictorial glossary. The pictorial glossary can be accessed from anywhere within a quickSTEP course. This enables the student to look up an unfa ...
MIL-STD-883H METHOD 3020 HIGH IMPEDANCE (OFF
... HIGH IMPEDANCE (OFF-STATE) LOW-LEVEL OUTPUT LEAKAGE CURRENT 1. PURPOSE. This method establishes the means for assuring circuit performance to the limits specified in the applicable acquisition document in regard to output leakage current when an output is in the high-impedance state with a low-level ...
... HIGH IMPEDANCE (OFF-STATE) LOW-LEVEL OUTPUT LEAKAGE CURRENT 1. PURPOSE. This method establishes the means for assuring circuit performance to the limits specified in the applicable acquisition document in regard to output leakage current when an output is in the high-impedance state with a low-level ...
CodingAndModulation - ETRO-VUB
... Fig.2. Fourier spectrum of a binary signal. Four interesting facts can be obtained from this function: - The Dirac peak at the frequency 0 corresponds to some DC voltage on the line, which results from the asymmetrical representation of bits 0 and 1. Choosing -a/2 and +a/2 instead of 0 and a would e ...
... Fig.2. Fourier spectrum of a binary signal. Four interesting facts can be obtained from this function: - The Dirac peak at the frequency 0 corresponds to some DC voltage on the line, which results from the asymmetrical representation of bits 0 and 1. Choosing -a/2 and +a/2 instead of 0 and a would e ...
1321TH 13 GHz Bandwidth 2 GS/s THA
... The 1321TH track-and-hold amplifier is designed for high precision sampling of wideband signals with multi-GHz frequency content. The master-slave architecture integrates two track-and-hold (T/H) circuits, clock mode selection logic, and a 50 Ω differential output buffer. Sample rates up to 2 GS/s a ...
... The 1321TH track-and-hold amplifier is designed for high precision sampling of wideband signals with multi-GHz frequency content. The master-slave architecture integrates two track-and-hold (T/H) circuits, clock mode selection logic, and a 50 Ω differential output buffer. Sample rates up to 2 GS/s a ...
surge-currrent-filters
... • At the instant the switch is closed, voltage is connected to the bridge and the capacitor appears as a short circuit. • This produces an initial surge of current Isurge through the two forward-biased diodes. The worst-case situation occurs when the switch is closed at a peak of the secondary volta ...
... • At the instant the switch is closed, voltage is connected to the bridge and the capacitor appears as a short circuit. • This produces an initial surge of current Isurge through the two forward-biased diodes. The worst-case situation occurs when the switch is closed at a peak of the secondary volta ...
Pulse-width modulation
Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a modulation technique used to encode a message into a pulsing signal. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. In addition, PWM is one of the two principal algorithms used in photovoltaic solar battery chargers, the other being MPPT.The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast rate. The longer the switch is on compared to the off periods, the higher the total power supplied to the load.The PWM switching frequency has to be much higher than what would affect the load (the device that uses the power), which is to say that the resultant waveform perceived by the load must be as smooth as possible. Typically switching has to be done several times a minute in an electric stove, 120 Hz in a lamp dimmer, from few kilohertz (kHz) to tens of kHz for a motor drive and well into the tens or hundreds of kHz in audio amplifiers and computer power supplies.The term duty cycle describes the proportion of 'on' time to the regular interval or 'period' of time; a low duty cycle corresponds to low power, because the power is off for most of the time. Duty cycle is expressed in percent, 100% being fully on.The main advantage of PWM is that power loss in the switching devices is very low. When a switch is off there is practically no current, and when it is on and power is being transferred to the load, there is almost no voltage drop across the switch. Power loss, being the product of voltage and current, is thus in both cases close to zero. PWM also works well with digital controls, which, because of their on/off nature, can easily set the needed duty cycle.PWM has also been used in certain communication systems where its duty cycle has been used to convey information over a communications channel.