Power Applications of Gas Tubes
Added by: Skyler
On: 07 Nop, 2017
Viewed:1,055 times - 1 day, 20 hour, 10 minute, 30 second ago
Downloaded: 0 times -
Rated 3.1 / 5 based on 152 reviews
Power rectifier and control tubes include mercury vapor rectifiers, thyratrons, and ignitrons. These tubes employ the very high current-carrying capacity of gas discharge tubes with low power losses for rectification and control in high-power equi...
Power rectifier and control tubes include mercury vapor rectifiers, thyratrons, and ignitrons. These tubes employ the very high current-carrying capacity of gas discharge tubes with low power losses for rectification and control in high-power equipment. The operation of mercury-vapor tubes depends on temperature insofar as tube voltage drop and peak inverse voltages are concerned. (See Fig. 28)
Hydrogen thyratrons are hot-cathode hydrogen-filled triodes designed for use as electronic switching devices where short anode delay time is important. In pulsing service, there are capable of switching tens of megawatts at voltages of tens of kilovolts. Anode delay time and time jitter are in the nanosecond range, and the tubes do not depend on ambient temperature for proper operation. Hydrogen thyratrons are also used in crowbar applications to protect other circuit components against fault voltages or currents and are capable of handling peak currents of several thousand amperes.
Triggered spark gaps are cold-cathode gas tubes operating in the arc discharge region (region III). The gaps contain two high power electrodes and a trigger electrode, which is generally fired through a step-up pulse transformer by a simple low-energy pulse. The gaps are used as electronic switching devices for peak currents of tens of thousands of amperes and voltage of tens of kilovolts. They can discharge stored energies transfer in exploding-bridge-wire circuits, gas plasma discharges, spark, chambers and Kerr cells. They are also use in crowbar application for fats-acting protection of other circuit components against fault voltages and currents. Before conduction, the gap presents a low capacitance and a very high impedance to the circuit. After triggering, when the gap is conducting , the impedance drops to a few ohm or less.
Voltage regulators of the glow-discharge type take advantage of the volt-ampere characteristic in region II, where the voltage is nearly independence of the current. they operate at milliamperes and up to a few hundred volts.
Voltage regulators of the corona-discharge type operate at currents of less than a miliampere and up to a few hundred volts.
Download Circuit and Wiring Diagram: Designing and Building Transistor Linear Power Amplifiers...
Download Circuit and Wiring Diagram: Easy way to build an audio mixer...
Download Circuit and Wiring Diagram: LM741 Operational Amplifier...
Download Circuit and Wiring Diagram: What is Light-Emitting Diodes (LEDs) and how it works...
Download Circuit and Wiring Diagram: Measuring Input and Output Impedance...
Download Circuit and Wiring Diagram: Understanding and working of relays...
As the fastest growing demand of circuit and wiring diagram for automotive and electronics on internet based on different uses such as electronic hobbyists, students, technicians and engineers than we decided to provide free circuit and wiring diagram base on your needed.
To find circuit and wiring diagram now a day its easy. E-learning through internet as a right place to search an exact circuit and wiring diagram of your choice and it's much fun and knowledgable. On internet you will find thousands of electronic circuit diagrams some are very good designed and some are not. So you have to modify them to make them according to your needs but some circuits are ready to make and require no changes.
There are many categories of circuit and wiring diagrams like automotive, audio circuits, radio & RF circuits, power supply circuits, light circuits, telephone circuits, timer circuits, battery charger circuits etc. There are many types of circuit and wiring diagrams some are very easy to build and some are very complicated, some are so small and some contain huge list of parts.
We provides free best quality and good designed schematic diagrams our diagrams are free to use for all electronic hobbyists, students, technicians and engineers. We also provides a full educational system to students new to electronics. If you are new to electronics you are a student or a electronic hobbyist and want to increase your knowledge in electronics or want to understand electronics in a very easy way so this is the right place for you we provide electronics beginner guide tutorials to easily understand complicated electronic theory. Our mission is to help students and professionals in their field.