Test - Electro Tech Online
... suspect that the transformer takes the current and creates a back emf that turns off the transistor. The switching with the inductance and capacitance creates a pulsing through the transformer (somewhat shown in the curves and squiggles in the traces). This pulsing, as shown in the traces, created a ...
... suspect that the transformer takes the current and creates a back emf that turns off the transistor. The switching with the inductance and capacitance creates a pulsing through the transformer (somewhat shown in the curves and squiggles in the traces). This pulsing, as shown in the traces, created a ...
Massachusetts institute of Technology
... A voltage divider is formed with resistors R1 and R2. A voltmeter is used to measure the voltage across resistor R2. The following table gives the values for the measured voltage Vo as a function of resistors R1 and R2 and the ideal voltage source VB. ...
... A voltage divider is formed with resistors R1 and R2. A voltmeter is used to measure the voltage across resistor R2. The following table gives the values for the measured voltage Vo as a function of resistors R1 and R2 and the ideal voltage source VB. ...
952 EE Quiz 01 ID#: Name:
... gain falls to 0dB, therefore we also call it the half power frequency. ...
... gain falls to 0dB, therefore we also call it the half power frequency. ...
AC voltage controller
... Input and output characteristics The maximum output frequency and the harmonics in the output voltage are the same as in single-phase circuit. Input power factor is a little higher than single-phase circuit. Harmonics in the input current is a little lower thanthe single- phase circuit due to the c ...
... Input and output characteristics The maximum output frequency and the harmonics in the output voltage are the same as in single-phase circuit. Input power factor is a little higher than single-phase circuit. Harmonics in the input current is a little lower thanthe single- phase circuit due to the c ...
1. Black Box Electronics
... Analog Array) is the analog holy grail. Attempts have been made, they were fast but accuracy was needed, they were accurate but speed and power were needed, they were high power but efficiency and accuracy were needed, etc.. Maybe next decade? ...
... Analog Array) is the analog holy grail. Attempts have been made, they were fast but accuracy was needed, they were accurate but speed and power were needed, they were high power but efficiency and accuracy were needed, etc.. Maybe next decade? ...
7.8.1 The parallel plate capacitor
... A capacitor is a device which is used to store electric charge. The simplest capacitor consists of two metal plates separated by an air gap. If the plates are connected to a battery, electrons are removed from one plate and moved around the circuit to the other plate. This leaves the first plate ...
... A capacitor is a device which is used to store electric charge. The simplest capacitor consists of two metal plates separated by an air gap. If the plates are connected to a battery, electrons are removed from one plate and moved around the circuit to the other plate. This leaves the first plate ...
Experiment 11
... 1) Connect the circuit as shown in Figure 1. Adjust the oscilloscope so that it responds to both horizontal and vertical voltages. (Set TIME/DIV knob to X-Y.) 2) Turn on the equipment and set the frequency, of the of the signal generator to 100 Hz. 3) Adjust the voltage amplitude knob on the signal, ...
... 1) Connect the circuit as shown in Figure 1. Adjust the oscilloscope so that it responds to both horizontal and vertical voltages. (Set TIME/DIV knob to X-Y.) 2) Turn on the equipment and set the frequency, of the of the signal generator to 100 Hz. 3) Adjust the voltage amplitude knob on the signal, ...
Providing Power Supply and Communication Lines
... The Sendyne SFP10x family of current, voltage and temperature measurement ICs is designed to be used in high voltage battery and power systems. Current measurements across a shunt can be performed at either the high or low side of the power system. For current measurements, the IC uses a dedicated o ...
... The Sendyne SFP10x family of current, voltage and temperature measurement ICs is designed to be used in high voltage battery and power systems. Current measurements across a shunt can be performed at either the high or low side of the power system. For current measurements, the IC uses a dedicated o ...
GLOSSARY IT 327 PACKET An Excellence Project by Ed Packer
... is characterized by the fact that XC=XL (so they cancel each other) and the total impedance (Z) = the resistance of the circuit, and the phase shift =0°. RMS Value: Root mean square of the peak voltage, or .707 (or 1/√2) times the peak value. Pg. 66. Series circuits: An electrical circuit in which t ...
... is characterized by the fact that XC=XL (so they cancel each other) and the total impedance (Z) = the resistance of the circuit, and the phase shift =0°. RMS Value: Root mean square of the peak voltage, or .707 (or 1/√2) times the peak value. Pg. 66. Series circuits: An electrical circuit in which t ...
DC1664 - LTC3109EUF Evaluation Kit Quick Start Guide
... of power to be used to acquire and transmit data. The burst must occur at a low enough duty cycle such that the total output energy during the burst does not exceed ...
... of power to be used to acquire and transmit data. The burst must occur at a low enough duty cycle such that the total output energy during the burst does not exceed ...
Basic Information and Definitions
... distances are referenced. For proximity switches the highest rated operating voltage must be considered as the rated isolation voltage. ...
... distances are referenced. For proximity switches the highest rated operating voltage must be considered as the rated isolation voltage. ...
3 Phase circuits, Single-phase transformer circuit model, and 3
... Unless stated otherwise, with 3-phase equipment, the power values are total 3-phase and the voltages are line-to-line rms. a) Using a common Sbase = 1500 kVA and a Vbas e of 600V on the load side of the transformer, determine the base impedance on each side of the transformer. b) Sketch an equivalen ...
... Unless stated otherwise, with 3-phase equipment, the power values are total 3-phase and the voltages are line-to-line rms. a) Using a common Sbase = 1500 kVA and a Vbas e of 600V on the load side of the transformer, determine the base impedance on each side of the transformer. b) Sketch an equivalen ...
Transient currents and voltages
... Build a RC circuit according to Figure 1, using C = 1.0μF and the Rvar (Potentiometer 5‐25kΩ). Open the Desktop folder: 2nd Yr Lab Files and select Charge and Discharge of a Capacitor (Lab View Application). The Analog Output works as a function generator. Use the Square Wave form and vary the ...
... Build a RC circuit according to Figure 1, using C = 1.0μF and the Rvar (Potentiometer 5‐25kΩ). Open the Desktop folder: 2nd Yr Lab Files and select Charge and Discharge of a Capacitor (Lab View Application). The Analog Output works as a function generator. Use the Square Wave form and vary the ...
Zap! (Electric Discharge) - Here. There. Everywhere.
... operate on very similar principles. These generators convert some kind of mechanical energy, such as hot steam rising or water falling, into electrical energy. This small hand generator is made of a few coils of wire around a magnet. When you turn the crank, the wire coils spin around the magnet, wh ...
... operate on very similar principles. These generators convert some kind of mechanical energy, such as hot steam rising or water falling, into electrical energy. This small hand generator is made of a few coils of wire around a magnet. When you turn the crank, the wire coils spin around the magnet, wh ...
Quartz Crystal Oscillators Glossary of Terms
... Frequency stability: The maximum allowable frequency deviation compared to the measured frequency at 25 °C over the temperature window, i.e., 0° C to +70° C. Typical stability is ± 0.01% ( ±100 ppm). Operating temperature: Temperature range within which output frequency and other electrical, environ ...
... Frequency stability: The maximum allowable frequency deviation compared to the measured frequency at 25 °C over the temperature window, i.e., 0° C to +70° C. Typical stability is ± 0.01% ( ±100 ppm). Operating temperature: Temperature range within which output frequency and other electrical, environ ...
Spark-gap transmitter
A spark-gap transmitter is a device that generates radio frequency electromagnetic waves using a spark gap.Spark gap transmitters were the first devices to demonstrate practical radio transmission, and were the standard technology for the first three decades of radio (1887–1916). Later, more efficient transmitters were developed based on rotary machines like the high-speed Alexanderson alternators and the static Poulsen Arc generators.Most operators, however, still preferred spark transmitters because of their uncomplicated design and because the carrier stopped when the telegraph key was released, which let the operator ""listen through"" for a reply. With other types of transmitter, the carrier could not be controlled so easily, and they required elaborate measures to modulate the carrier and to prevent transmitter leakage from de-sensitizing the receiver. After WWI, greatly improved transmitters based on vacuum tubes became available, which overcame these problems, and by the late 1920s the only spark transmitters still in regular operation were ""legacy"" installations on naval vessels. Even when vacuum tube based transmitters had been installed, many vessels retained their crude but reliable spark transmitters as an emergency backup. However, by 1940, the technology was no longer used for communication. Use of the spark-gap transmitter led to many radio operators being nicknamed ""Sparks"" long after they ceased using spark transmitters. Even today, the German verb funken, literally, ""to spark,"" also means ""to send a radio message or signal.""