Tutorial 1
... What will happen if we change the switching sequence to (V0, V2, V3, V2, V0)? For (V0, V3, V2, V7, V2, V3, V0), what are the duty cycles (time periods) for each voltage vector? 5. A Space Vector Modulation technique is used in a three-phase inverter with an inductive load (star connection). a. Sketc ...
... What will happen if we change the switching sequence to (V0, V2, V3, V2, V0)? For (V0, V3, V2, V7, V2, V3, V0), what are the duty cycles (time periods) for each voltage vector? 5. A Space Vector Modulation technique is used in a three-phase inverter with an inductive load (star connection). a. Sketc ...
33.3 General Structure of Voltage Source Inverters
... gate drive circuit requirements of inverter switches. The word ‘inverter’ in the context of powerelectronics denotes a class of power conversion (or power conditioning) circuits that operates from a dc voltage source or a dc current source and converts it into ac voltage or current. The ‘inverter’ d ...
... gate drive circuit requirements of inverter switches. The word ‘inverter’ in the context of powerelectronics denotes a class of power conversion (or power conditioning) circuits that operates from a dc voltage source or a dc current source and converts it into ac voltage or current. The ‘inverter’ d ...
experiment 4 - Portal UniMAP
... Determining a transformer’s voltage ratio is simple matter. With no load connected to the secondary winding, only small exciting current necessary to create the magnetic flux inside the transformer flows in the primary winding. Transformer losses are minimum and the ratio of primary to secondary vol ...
... Determining a transformer’s voltage ratio is simple matter. With no load connected to the secondary winding, only small exciting current necessary to create the magnetic flux inside the transformer flows in the primary winding. Transformer losses are minimum and the ratio of primary to secondary vol ...
Induction
... present invention secures a similar result by ()n the passage of a ‘current of the proper rendering the vapor a true electric conduc— character through the coil 3, a current is 35 tor under the influence of the electroemotive induced in the vapor, and the vessel becomes 9 0 forces induced therein by ...
... present invention secures a similar result by ()n the passage of a ‘current of the proper rendering the vapor a true electric conduc— character through the coil 3, a current is 35 tor under the influence of the electroemotive induced in the vapor, and the vessel becomes 9 0 forces induced therein by ...
ssr series voltage regulators
... The SSR Voltage regulator is completely solid state and uses state-of-the-art circuitry to provide high performance with a wide range of standard features. Voltage is internally or remotely adjustable, with single-phase or three-phase customer selectable sensing over a wide range. The SSR has a vari ...
... The SSR Voltage regulator is completely solid state and uses state-of-the-art circuitry to provide high performance with a wide range of standard features. Voltage is internally or remotely adjustable, with single-phase or three-phase customer selectable sensing over a wide range. The SSR has a vari ...
A Second Long Pulse Modulator For TESLA Using IGBTs
... Our reasons for developing an IGBT switch were twofold. First, we wanted to develop some expertise with these newer components and to determine if they would have advantages over the GTO design. Second, the GTO switch in the new modulator would have had to turn off in excess of 2.3 kA under fault co ...
... Our reasons for developing an IGBT switch were twofold. First, we wanted to develop some expertise with these newer components and to determine if they would have advantages over the GTO design. Second, the GTO switch in the new modulator would have had to turn off in excess of 2.3 kA under fault co ...
customising a reluctor style distributor (45dm4) hei
... angle of the distributor’s shaft by essentially providing an on-off switching signal as the shaft rotates, however they do not contain useful amplitude information. The reluctor, on the other hand, being a type of AC generator, not only contains the timing information to detect the distributor’s sh ...
... angle of the distributor’s shaft by essentially providing an on-off switching signal as the shaft rotates, however they do not contain useful amplitude information. The reluctor, on the other hand, being a type of AC generator, not only contains the timing information to detect the distributor’s sh ...
Experiment P44: LR Circuit (Power Amplifier, Voltage Sensor)
... one end of the 10 _ resistor is connected and a component spring nearest to the bottom banana jack at the lower right corner of the circuit board. (See the manual for a diagram.) ...
... one end of the 10 _ resistor is connected and a component spring nearest to the bottom banana jack at the lower right corner of the circuit board. (See the manual for a diagram.) ...
About the set-up of electric circuits and the use of
... Fig. 8 shows the block diagram of a function generator FG, which generates a sinusoidal alternating voltage U~ of an adjustable amplitude and frequency (e.g. 2 V, 1 kHz). A load resistor R (e.g. R = 1 kΩ) is connected to the output of the function generator. The output voltage of the FG at this resi ...
... Fig. 8 shows the block diagram of a function generator FG, which generates a sinusoidal alternating voltage U~ of an adjustable amplitude and frequency (e.g. 2 V, 1 kHz). A load resistor R (e.g. R = 1 kΩ) is connected to the output of the function generator. The output voltage of the FG at this resi ...
Programmable AC Current Transducer
... USB communication port is NOT galvanically isolated and can ONLY be used unconnected to aux. supply AND measuring inputs. USB connector is placed on the bottom of the MT418, behind removable cap. Instrument will establish an USB connection with the PC approx. 3 seconds after physical connection to U ...
... USB communication port is NOT galvanically isolated and can ONLY be used unconnected to aux. supply AND measuring inputs. USB connector is placed on the bottom of the MT418, behind removable cap. Instrument will establish an USB connection with the PC approx. 3 seconds after physical connection to U ...
7.0 - Radio Signals and Measurements
... monitor the output signal of a voice-modulated single-sideband transmitter to ensure you do not exceed the maximum allowable power? A. An SWR meter reading in the forward direction B. A modulation meter C. An average reading wattmeter D. A peak-reading wattmeter ...
... monitor the output signal of a voice-modulated single-sideband transmitter to ensure you do not exceed the maximum allowable power? A. An SWR meter reading in the forward direction B. A modulation meter C. An average reading wattmeter D. A peak-reading wattmeter ...
Amplifier IC Generates a Negative Voltage
... Abstract: A negative voltage reference can be generated using a series voltage reference with an inverting amplifier. The MAX6010 series voltage reference used with the MAX9820 amplifier with integrated charge pumps as shown in the circuit in figure 1 to achieve this negative voltage reference using ...
... Abstract: A negative voltage reference can be generated using a series voltage reference with an inverting amplifier. The MAX6010 series voltage reference used with the MAX9820 amplifier with integrated charge pumps as shown in the circuit in figure 1 to achieve this negative voltage reference using ...
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.""