
2016 China International Conference on Electricity Distribution
... supply), SSTS(solid state transfer switch), SVG and so on. DVR is the most effective device to solve the problems of voltage sag [1]-[2]. However, when the depth of voltage sag is over 50%, DVR could not be used to compensate for voltage sag. What’s more, DVR is used in low voltage systems. In mediu ...
... supply), SSTS(solid state transfer switch), SVG and so on. DVR is the most effective device to solve the problems of voltage sag [1]-[2]. However, when the depth of voltage sag is over 50%, DVR could not be used to compensate for voltage sag. What’s more, DVR is used in low voltage systems. In mediu ...
160 and 80 Meter Matching Network for Your 43 foot Vertical
... air wound coil and two Array Solutions secondary taps into the inductor at the 200 Ω RF-30 relays for up to full legal limit match- point, providing a proper match to the unun Part 1, I described a simple 160 and ing on all bands from 160 to 10 meters. A on these bands. This keeps the unun second80 ...
... air wound coil and two Array Solutions secondary taps into the inductor at the 200 Ω RF-30 relays for up to full legal limit match- point, providing a proper match to the unun Part 1, I described a simple 160 and ing on all bands from 160 to 10 meters. A on these bands. This keeps the unun second80 ...
A Low-power CMOS Analog Vector Quantizer - Solid
... In principle, more than one winner could exist at equilibrium. In practice, this is almost never the case, by nature of the combined positive feedback and global renormalization in the WTA competition. Other variants on this WTA circuit can be found in [13]. Fig. 5 illustrates the operation of a 16- ...
... In principle, more than one winner could exist at equilibrium. In practice, this is almost never the case, by nature of the combined positive feedback and global renormalization in the WTA competition. Other variants on this WTA circuit can be found in [13]. Fig. 5 illustrates the operation of a 16- ...
MAX1534 High-Efficiency, Triple-Output, Keep-Alive Power Supply for Notebook Computers General Description
... The MAX1534’s buck converter uses a proprietary current-limited control scheme with operation to 100% duty cycle. This DC-to-DC converter pulses as needed to maintain regulation, resulting in a variable switching frequency that increases with the load. This eliminates the high supply currents associ ...
... The MAX1534’s buck converter uses a proprietary current-limited control scheme with operation to 100% duty cycle. This DC-to-DC converter pulses as needed to maintain regulation, resulting in a variable switching frequency that increases with the load. This eliminates the high supply currents associ ...
A 5.9-GHz Voltage-Controlled Ring Oscillator in 0.18
... ring structures, relaxation circuits, or an LC resonant circuit. The LC design has the best noise and frequency performance owing to the large quality factor Q achievable with resonant networks [1]. However, adding high-quality inductors to a CMOS process flow increases the cost and complexity of th ...
... ring structures, relaxation circuits, or an LC resonant circuit. The LC design has the best noise and frequency performance owing to the large quality factor Q achievable with resonant networks [1]. However, adding high-quality inductors to a CMOS process flow increases the cost and complexity of th ...
MAX8869 1A, Microcap, Low-Dropout, Linear Regulator General Description
... The MAX8869 low-dropout linear regulator operates from a +2.7V to +5.5V input and delivers a guaranteed 1A load current with a low 200mV dropout. The highaccuracy (±1%) output voltage is preset at +5V, +3.3V, +2.5V, +1.8V, or +1.0V or is adjustable from +0.8V to +5V with an external resistor-divider ...
... The MAX8869 low-dropout linear regulator operates from a +2.7V to +5.5V input and delivers a guaranteed 1A load current with a low 200mV dropout. The highaccuracy (±1%) output voltage is preset at +5V, +3.3V, +2.5V, +1.8V, or +1.0V or is adjustable from +0.8V to +5V with an external resistor-divider ...
isscc 2010 / session 7 / designing in emerging technologies / 7.1
... OTFT process thus far. We aim to address such deficiency with the design of this 3V, 6 bit OTFT-based ADC. Figure 7.1.1 shows a circuit diagram of our ADC. In our organic thin-film process, mismatch distributions showed that capacitors can be made an order of magnitude more precisely than transistor ...
... OTFT process thus far. We aim to address such deficiency with the design of this 3V, 6 bit OTFT-based ADC. Figure 7.1.1 shows a circuit diagram of our ADC. In our organic thin-film process, mismatch distributions showed that capacitors can be made an order of magnitude more precisely than transistor ...
Design and Construction of Microcontroller
... functions for connection to a digital switching system (only provided in recent digital switching machines). H: Hybrid - Two-wire to four-wire conversion before connection to a digital switching machine (as for the CODEC function). T: Testing - Provision to allow either automatic or manual testing o ...
... functions for connection to a digital switching system (only provided in recent digital switching machines). H: Hybrid - Two-wire to four-wire conversion before connection to a digital switching machine (as for the CODEC function). T: Testing - Provision to allow either automatic or manual testing o ...
OPA549 High-Voltage, High-Current OPERATIONAL AMPLIFIER DESCRIPTION
... The OPA549 is a low-cost, high-voltage/high-current operational amplifier ideal for driving a wide variety of loads. This laser-trimmed monolithic integrated circuit provides excellent low-level signal accuracy and high output voltage and current. The OPA549 operates from either single or dual suppl ...
... The OPA549 is a low-cost, high-voltage/high-current operational amplifier ideal for driving a wide variety of loads. This laser-trimmed monolithic integrated circuit provides excellent low-level signal accuracy and high output voltage and current. The OPA549 operates from either single or dual suppl ...
Installation Manual
... includes a 12 months free subscription to eTactica’s cloud based software platform where you gain visibility on consumption and are able to define alert triggers. Included in the Starter Kit are The EG-200 Gateway, which collects data and sends to the cloud The EM-80 Power Meter, which measures ...
... includes a 12 months free subscription to eTactica’s cloud based software platform where you gain visibility on consumption and are able to define alert triggers. Included in the Starter Kit are The EG-200 Gateway, which collects data and sends to the cloud The EM-80 Power Meter, which measures ...
High-voltage Differential Probes
... ground-referenced signals that can be displayed safely and easily on any ground-referenced oscilloscope. ...
... ground-referenced signals that can be displayed safely and easily on any ground-referenced oscilloscope. ...
BLEND-AIR DOOR MOTOR BLOWER MOTOR RELAY
... shorted circuit or component as required and replace the faulty fuse. (2) Turn the ignition switch to the Off position. Disconnect and isolate the battery negative cable. Remove the heater-A/C control from the instrument panel, but do not unplug the wire harness connectors. Connect the battery negat ...
... shorted circuit or component as required and replace the faulty fuse. (2) Turn the ignition switch to the Off position. Disconnect and isolate the battery negative cable. Remove the heater-A/C control from the instrument panel, but do not unplug the wire harness connectors. Connect the battery negat ...
050 Electronic Tuning Fork Example Project
... To find values for RA and RB I need to consider what preferred values are available. I chose a 3.6kΩ resistor for RA, which then left me with RB as 20kΩ. I connected up these values to my astable circuit and connected a digital frequency meter to the output. When I connected the battery, the frequen ...
... To find values for RA and RB I need to consider what preferred values are available. I chose a 3.6kΩ resistor for RA, which then left me with RB as 20kΩ. I connected up these values to my astable circuit and connected a digital frequency meter to the output. When I connected the battery, the frequen ...
Developed Power Quality Monitor Used for Shunt Active Power Filter
... these components can be useful to analyze a three-phase power system, since they allow viewing some of the Power Quality problems under a different point of view. This application can also calculate the values of currents and instantaneous power that the source would have to supply if a shunt active ...
... these components can be useful to analyze a three-phase power system, since they allow viewing some of the Power Quality problems under a different point of view. This application can also calculate the values of currents and instantaneous power that the source would have to supply if a shunt active ...
01329013 - Department of Electronics
... electronic applications, both digital and analog, use differential circuit techniques, but unfortunately almost all high performance test instruments, including sampling oscilloscope and signal generators, are single-ended, ground-referenced, 50 Ohm instruments. In order to avoid external differenti ...
... electronic applications, both digital and analog, use differential circuit techniques, but unfortunately almost all high performance test instruments, including sampling oscilloscope and signal generators, are single-ended, ground-referenced, 50 Ohm instruments. In order to avoid external differenti ...
AN-639 APPLICATION NOTE Frequently Asked Questions (FAQs) Analog Devices Energy (ADE) Products
... configuration (ANSI 2S)? In the United States (and some other locations), residential power is distributed in a single-phase, 3-wire configuration. Two wires, namely L1 and L2, have voltage signals that are 180º out of phase with each other and share a common neutral wire. In theory, two energy meas ...
... configuration (ANSI 2S)? In the United States (and some other locations), residential power is distributed in a single-phase, 3-wire configuration. Two wires, namely L1 and L2, have voltage signals that are 180º out of phase with each other and share a common neutral wire. In theory, two energy meas ...
Innovative power flow management and voltage control technologies
... improvement can be achieved by providing greater operational flexibility in addition to increasing power transfer capability. There are basically two ways of generating this series voltage. One way is to draw all the active power PT and reactive power QT requirements needed to generate this voltage ...
... improvement can be achieved by providing greater operational flexibility in addition to increasing power transfer capability. There are basically two ways of generating this series voltage. One way is to draw all the active power PT and reactive power QT requirements needed to generate this voltage ...
FETs, the curve trace,r and PSpice simulation -
... junction field-effect transistor for our curve-tracer work. In the experimental work below, please do not spend more than your group’s share of time with a 577 tracer. You may watch another group work with their JFET, but do your own work on the tracer. Explain why you need to invert the step genera ...
... junction field-effect transistor for our curve-tracer work. In the experimental work below, please do not spend more than your group’s share of time with a 577 tracer. You may watch another group work with their JFET, but do your own work on the tracer. Explain why you need to invert the step genera ...
Name:
... voltmeter in parallel with the first bulb to measure the voltage across (from one side of the bulb to the other) the first light bulb, V1. Without changing the voltage on the power supply, connect the voltmeter in parallel with the second bulb only (left hand circuit drawing of figure 7) to measure ...
... voltmeter in parallel with the first bulb to measure the voltage across (from one side of the bulb to the other) the first light bulb, V1. Without changing the voltage on the power supply, connect the voltmeter in parallel with the second bulb only (left hand circuit drawing of figure 7) to measure ...
Variable-frequency drive

A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.