An LCLC resonant topology based filament power supply for
... compensating inductance required then was 250 µH to keep the resonating frequency very close to switching frequency of 40 kHz. This selection kept the no load circulating current demand at the switch end to the minimum possible. A full bridge topology with fixed frequency operation is used in this i ...
... compensating inductance required then was 250 µH to keep the resonating frequency very close to switching frequency of 40 kHz. This selection kept the no load circulating current demand at the switch end to the minimum possible. A full bridge topology with fixed frequency operation is used in this i ...
A Wide Locking Range Differential Colpitts Injection
... • The main concern for the frequency divider design is large locking range with low power consumption. • For high speed and low power operation LC-tank ILFD is the most suitable one among various types of frequency dividers because operating frequency is determined by the resonant frequency. • The I ...
... • The main concern for the frequency divider design is large locking range with low power consumption. • For high speed and low power operation LC-tank ILFD is the most suitable one among various types of frequency dividers because operating frequency is determined by the resonant frequency. • The I ...
Name: ________________________________________ Code # _________ Summer Session ... ID: X
... Do this exam a few times... Once without the answers, Once after seeing the solutions & Once again with your formula sheet This is a good time to add formulas/constants to your sheet. Remember, this is a timed exam... work swiftly so you have time to check your answers. 1. How much does the maximum ...
... Do this exam a few times... Once without the answers, Once after seeing the solutions & Once again with your formula sheet This is a good time to add formulas/constants to your sheet. Remember, this is a timed exam... work swiftly so you have time to check your answers. 1. How much does the maximum ...
Exam - ISY@LiU
... Draw the input voltage vs, resistor voltage vr, and input current is shapes, indicate where each diode is on (conducting) or off (not conducting), and at what angles current and voltage changes happen. ...
... Draw the input voltage vs, resistor voltage vr, and input current is shapes, indicate where each diode is on (conducting) or off (not conducting), and at what angles current and voltage changes happen. ...
building aq meter
... which causes the gain of this transistor pair to be maximum at a single frequency. Unlike most oscillators which start in class A but run in class C, these two transistors run in class A under steady state conditions, due to AGC action. As the operating frequency is changed with the variable capacit ...
... which causes the gain of this transistor pair to be maximum at a single frequency. Unlike most oscillators which start in class A but run in class C, these two transistors run in class A under steady state conditions, due to AGC action. As the operating frequency is changed with the variable capacit ...
Tutorial 12
... Without the step up and step down transformer, the current in the supply cable will be approximately equal to 400 A but much larger than 16A. As such, the power dissipated through the supply wire would be proportional to I2 R. Thus the corresponding power loss in transmission will be much larger. Tr ...
... Without the step up and step down transformer, the current in the supply cable will be approximately equal to 400 A but much larger than 16A. As such, the power dissipated through the supply wire would be proportional to I2 R. Thus the corresponding power loss in transmission will be much larger. Tr ...
O A RIGINAL RTICLE
... The basic principle used by rheostats is Ohm's law, which state that current is inversely proportional to resistance for a given voltage. This means the current decreases as the resistance increases, or it increases as the resistance decreases. The result that obtains from the experiment is followin ...
... The basic principle used by rheostats is Ohm's law, which state that current is inversely proportional to resistance for a given voltage. This means the current decreases as the resistance increases, or it increases as the resistance decreases. The result that obtains from the experiment is followin ...
ATV Transmitter from a Microwave Oven!
... port. After an unknown number of degrees rotation within the feed structure (Matsushita would not provide tube data), this causes the magnetron to be pulled lower in frequency by some 25 MHz from its design frequency, ensuring legal amateur band operation. ...
... port. After an unknown number of degrees rotation within the feed structure (Matsushita would not provide tube data), this causes the magnetron to be pulled lower in frequency by some 25 MHz from its design frequency, ensuring legal amateur band operation. ...
Self Study Unit 1.2
... Unit 1.2 Electronic Principles: Ohm’s Law Ohm’s Law is the relationship between voltage, current, and the resistance in a DC circuit. When you know any two of these values, you can calculate the third. The most basic equation for Ohm’s Law is: E = I ×R In other words, when you know the current going ...
... Unit 1.2 Electronic Principles: Ohm’s Law Ohm’s Law is the relationship between voltage, current, and the resistance in a DC circuit. When you know any two of these values, you can calculate the third. The most basic equation for Ohm’s Law is: E = I ×R In other words, when you know the current going ...
The high power version of the WS19
... aerial tuning inductor. Somewhat less standard is the input circuit, which uses a fixed tuned circuit at 1.6MHz, slugged heavily by R2 (12 ) to give a broadband response, peaking at the low frequency end of the range. L2 functions as an impedance step-up transformer from RF input to the valve grids ...
... aerial tuning inductor. Somewhat less standard is the input circuit, which uses a fixed tuned circuit at 1.6MHz, slugged heavily by R2 (12 ) to give a broadband response, peaking at the low frequency end of the range. L2 functions as an impedance step-up transformer from RF input to the valve grids ...
Chapter 17 Alternating Currents
... (ii) When this voltage is applied across L and C2 in series. L offers a much greater impedance to the a.c. component than C2. Hence most of the unwanted a.c. ripples appear across L. (iii) For the d.c. component, C2 has infinite resistance, and the whole of this component is developed across C2 exce ...
... (ii) When this voltage is applied across L and C2 in series. L offers a much greater impedance to the a.c. component than C2. Hence most of the unwanted a.c. ripples appear across L. (iii) For the d.c. component, C2 has infinite resistance, and the whole of this component is developed across C2 exce ...
Fault Finding
... a - well soldered joints but “filament” of solder from one track to the next b - thin piece of copper joining the end of one track to the end of the next track c - badly soldered joint; the solder is not making good contact with the copper track d - well soldered joint but wire too long; it might re ...
... a - well soldered joints but “filament” of solder from one track to the next b - thin piece of copper joining the end of one track to the end of the next track c - badly soldered joint; the solder is not making good contact with the copper track d - well soldered joint but wire too long; it might re ...
company name - Schneider Electric
... compensation, highly fluctuating cyclical load compensation) may require special data collection which is not typically available form general power metering devices. Evaluation of the load characteristics with respect to harmonic content (both voltage and current) becomes a main factor in proper ca ...
... compensation, highly fluctuating cyclical load compensation) may require special data collection which is not typically available form general power metering devices. Evaluation of the load characteristics with respect to harmonic content (both voltage and current) becomes a main factor in proper ca ...
Rad Tech 110
... • These alternating magnetic fields are distributed throughout the core of the transformer. • The alternating magnetic fields ‘induce’ an electrical current in loops (coils) of wire. ...
... • These alternating magnetic fields are distributed throughout the core of the transformer. • The alternating magnetic fields ‘induce’ an electrical current in loops (coils) of wire. ...
Generation of a sine wave
... Generators convert rotational energy to electrical energy. A stationary field alternator with a rotating armature is shown. The armature has an induced voltage, which is connected through slip rings and brushes to a load. The armature loops are wound on a magnetic core (not shown for simplicity). ...
... Generators convert rotational energy to electrical energy. A stationary field alternator with a rotating armature is shown. The armature has an induced voltage, which is connected through slip rings and brushes to a load. The armature loops are wound on a magnetic core (not shown for simplicity). ...
electrical energy based processes
... • When potential difference between tool and work piece is high, a transient spark discharges through the fluid, removing a small amount of metal from the work piece surface. • This process is repeated with capacitor discharge rates of 50-500 kHz. ...
... • When potential difference between tool and work piece is high, a transient spark discharges through the fluid, removing a small amount of metal from the work piece surface. • This process is repeated with capacitor discharge rates of 50-500 kHz. ...
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.""