
SERVICE MANUAL
... Servicing should not be attempted by anyone who is not thoroughly familiar with the precautions necessary when working on high voltage equipment. Perfectly discharge the high potential of the picture tube before handling the tube. The picture tube is highly evacuated and if broken. Glass fragments w ...
... Servicing should not be attempted by anyone who is not thoroughly familiar with the precautions necessary when working on high voltage equipment. Perfectly discharge the high potential of the picture tube before handling the tube. The picture tube is highly evacuated and if broken. Glass fragments w ...
Snubber Circuits: Theory , Design and Application
... snubbers may be either voltage or current snubbers and may be either polarized or non-polarized. Dissipative snubbers may be designed to control the rate of rise of voltage or current or be designed to clamp the voltage. Simple RC Voltage Snubber: The simple RC snubber shown in Figure 3A provides da ...
... snubbers may be either voltage or current snubbers and may be either polarized or non-polarized. Dissipative snubbers may be designed to control the rate of rise of voltage or current or be designed to clamp the voltage. Simple RC Voltage Snubber: The simple RC snubber shown in Figure 3A provides da ...
chapter #4 - oscillator
... Duty cycles can be adjusted by values of R1 and R2. The duty cycle is limited to 50% with this arrangement. To have duty cycles less than 50%, a diode is placed across R2. The two formulas show the relationship. ...
... Duty cycles can be adjusted by values of R1 and R2. The duty cycle is limited to 50% with this arrangement. To have duty cycles less than 50%, a diode is placed across R2. The two formulas show the relationship. ...
Technical Guide No. 102
... paths along the surface of the varnished windings, especially when combined with moisture from the surrounding environment. This facilitates high frequency surface tracking, which can effectively produce short circuits between otherwise insulated portions of the windings. ...
... paths along the surface of the varnished windings, especially when combined with moisture from the surrounding environment. This facilitates high frequency surface tracking, which can effectively produce short circuits between otherwise insulated portions of the windings. ...
Deney3
... Zener Diode Voltage Regulator In Fig.6, an often used Zener diode voltage regulator is shown. The function of a voltage regulator is to provide a constant low ripple output voltage under varying load current conditions. While very high quality voltage regulators are available in integrated circuits ...
... Zener Diode Voltage Regulator In Fig.6, an often used Zener diode voltage regulator is shown. The function of a voltage regulator is to provide a constant low ripple output voltage under varying load current conditions. While very high quality voltage regulators are available in integrated circuits ...
Characterization of atomic layer deposition HfO2, Al2O3
... One of the most common methods to deposit MIM capacitor dielectric in the semiconductor industry is the PECVD method. The films deposited using this method typically result in relatively good electrical, physical, chemical, and thermal characteristics, have good film conformality, and can be deposit ...
... One of the most common methods to deposit MIM capacitor dielectric in the semiconductor industry is the PECVD method. The films deposited using this method typically result in relatively good electrical, physical, chemical, and thermal characteristics, have good film conformality, and can be deposit ...
A Single-Slope 80 MS/s ADC Using Two-Step Time to
... circuit, a current source, and a comparator. The sample-andhold circuit charges the sampling capacitor up to the input voltage while the current source is turned off. The current source is then turned on so that the voltage across the sampling capacitor decreases linearly as a function of time. When ...
... circuit, a current source, and a comparator. The sample-andhold circuit charges the sampling capacitor up to the input voltage while the current source is turned off. The current source is then turned on so that the voltage across the sampling capacitor decreases linearly as a function of time. When ...
CBT-C, CB3T, and CB3Q Signal-Switch Families
... Introduction On-off switches are one of the most common control elements in electrical circuitry. This has evolved over the years, from the manually operated circuit breaker of the early experiments to the multiswitch integrated circuit of today. In every application, the function of the switch rema ...
... Introduction On-off switches are one of the most common control elements in electrical circuitry. This has evolved over the years, from the manually operated circuit breaker of the early experiments to the multiswitch integrated circuit of today. In every application, the function of the switch rema ...
S230-30-4
... sections” or “internal series groups” in a string of capacitors. Figure 5 is a schematic of a typical string showing the individual series sections. When the polypropylene dielectric of an element fails, the energy stored in the parallel connected capacitance discharges into the failure point punctu ...
... sections” or “internal series groups” in a string of capacitors. Figure 5 is a schematic of a typical string showing the individual series sections. When the polypropylene dielectric of an element fails, the energy stored in the parallel connected capacitance discharges into the failure point punctu ...
doctor - Shodhganga
... capacitance and a nonlinear inductance. The capacitance can be due to a large number of capacitive elements. Similarly the nonlinear inductance can be that of a single element for example the magnetic core of a voltage transformer or it may have the structure of a three phase power transformer [69]. ...
... capacitance and a nonlinear inductance. The capacitance can be due to a large number of capacitive elements. Similarly the nonlinear inductance can be that of a single element for example the magnetic core of a voltage transformer or it may have the structure of a three phase power transformer [69]. ...
Twelve-Sided Polygonal Voltage Space Vector
... realized by feeding the motor from both ends (open-end winding) using conventional inverter structures [9]–[11]. In [11], a three-level voltage structure is realized for an open-end winding drive by feeding the motor from the opposite ends with reduced dc link voltages. A three-level inverter config ...
... realized by feeding the motor from both ends (open-end winding) using conventional inverter structures [9]–[11]. In [11], a three-level voltage structure is realized for an open-end winding drive by feeding the motor from the opposite ends with reduced dc link voltages. A three-level inverter config ...
In this paper, a new single-phase cascaded multilevel inverter is
... is comprised of a series connection of the proposed basic unit and is able to only generate positive levels at the output. Therefore, an H-bridge is added to the proposed inverter. This inverter is called the developed cascaded multilevel inverter. In order to generate all voltage levels (even and o ...
... is comprised of a series connection of the proposed basic unit and is able to only generate positive levels at the output. Therefore, an H-bridge is added to the proposed inverter. This inverter is called the developed cascaded multilevel inverter. In order to generate all voltage levels (even and o ...
Four-Coil Wireless Power Transfer Using Resonant Inductive Coupling
... The concept of wireless power transfer (WPT) began with the experiments of Nikola Tesla at the end of the 19th and beginning of the 20th centuries. Tesla proposed a concept of electrodynamic induction using a Tesla coil-like device to create an alternating electric field with extremely high strength ...
... The concept of wireless power transfer (WPT) began with the experiments of Nikola Tesla at the end of the 19th and beginning of the 20th centuries. Tesla proposed a concept of electrodynamic induction using a Tesla coil-like device to create an alternating electric field with extremely high strength ...
Navy Electricity and Electronics Training Series
... The Navy Electricity and Electronics Training Series (NEETS) was developed for use by personnel in many electrical- and electronic-related Navy ratings. Written by, and with the advice of, senior technicians in these ratings, this series provides beginners with fundamental electrical and electronic ...
... The Navy Electricity and Electronics Training Series (NEETS) was developed for use by personnel in many electrical- and electronic-related Navy ratings. Written by, and with the advice of, senior technicians in these ratings, this series provides beginners with fundamental electrical and electronic ...
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.""