Application of Programmable Unijunction Transistor for - icmcs-2014
... voltage between the collector and emitter UCE and proportional to the current of base. Typically, for lowpower transistors in integrated design, the allowable range of the UCE is approximately 1 – 35 V [5]. Stabilization of the base current is carried by diode VD1, and the diode is chosen so that, i ...
... voltage between the collector and emitter UCE and proportional to the current of base. Typically, for lowpower transistors in integrated design, the allowable range of the UCE is approximately 1 – 35 V [5]. Stabilization of the base current is carried by diode VD1, and the diode is chosen so that, i ...
Stator windings Excitor windings Rotor windings
... To fulfill our commitment to be the leading supplier in the power generation industry, the Loftin Equipment and Bay City Electric Works teams ensures they are always up-to-date with the current power industry standards as well as industry trends. As a service, our Information Sheets are circulated o ...
... To fulfill our commitment to be the leading supplier in the power generation industry, the Loftin Equipment and Bay City Electric Works teams ensures they are always up-to-date with the current power industry standards as well as industry trends. As a service, our Information Sheets are circulated o ...
College of Micronesia – FSM
... General Objectives: This introductory course is designed for students to investigate the operation of semiconductors. Student will discover how semiconductor components such as diodes, ...
... General Objectives: This introductory course is designed for students to investigate the operation of semiconductors. Student will discover how semiconductor components such as diodes, ...
PROTECTING RECHARGEABLE LI-ION AND LI-POLYMER BATTERIES in Consumer Portable Electronics
... A PolySwitch PPTC device placed in series with the battery helps provide a second level of protection in the event of a control circuit malfunctioning (Figure 1). Although the semiconductor circuitry is considered reliable, there are conditions under which failure of the primary protection may occur ...
... A PolySwitch PPTC device placed in series with the battery helps provide a second level of protection in the event of a control circuit malfunctioning (Figure 1). Although the semiconductor circuitry is considered reliable, there are conditions under which failure of the primary protection may occur ...
Basics of Linear Regulators ,Application Note : Power Management
... (minimum voltage difference between input and output that ensures stable operation) below 1V, while that of the standard type has about 3V. ...
... (minimum voltage difference between input and output that ensures stable operation) below 1V, while that of the standard type has about 3V. ...
umatr - Atkinson Electronics Inc
... differential. The UMATR uses a NSC LN10CN IC chip which provides a voltage reference to power a variety of sensors. Each UMATR is factory calibrated for the sensor type and the temperature range specified. ZERO and SPAN potentiometers are included to permit signal calibration. Shielded wire is not r ...
... differential. The UMATR uses a NSC LN10CN IC chip which provides a voltage reference to power a variety of sensors. Each UMATR is factory calibrated for the sensor type and the temperature range specified. ZERO and SPAN potentiometers are included to permit signal calibration. Shielded wire is not r ...
Phase angle error
... to express the burden in terms of VA and power factor, the VA being what would be consumed in the burden impedance at rated secondary current ...
... to express the burden in terms of VA and power factor, the VA being what would be consumed in the burden impedance at rated secondary current ...
NTC and PTC Thermistors
... decrease in resistance as the temperature increases. PTC thermistors are Positive Temperature Coefficient resistors generally made of polycrystalline ceramic materials that have a high positive temperature coefficient, which increases in resistance as the temperature increases. Typically, NTC or PTC ...
... decrease in resistance as the temperature increases. PTC thermistors are Positive Temperature Coefficient resistors generally made of polycrystalline ceramic materials that have a high positive temperature coefficient, which increases in resistance as the temperature increases. Typically, NTC or PTC ...
AP1120
... 4. Line and load regulation are guaranteed up to the maximum power dissipation of 15W. Power dissipation is determined by the input/output differentially and the output current. Guaranteed maximum power dissipation will not be available over the full input/output range. 5. Quiescent current is defin ...
... 4. Line and load regulation are guaranteed up to the maximum power dissipation of 15W. Power dissipation is determined by the input/output differentially and the output current. Guaranteed maximum power dissipation will not be available over the full input/output range. 5. Quiescent current is defin ...
BDW94CF PNP Epitaxial Silicon Transistor B D
... SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, or (c) whose failure to perform when properly use ...
... SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, or (c) whose failure to perform when properly use ...
Thermal runaway
Thermal runaway refers to a situation where an increase in temperature changes the conditions in a way that causes a further increase in temperature, often leading to a destructive result. It is a kind of uncontrolled positive feedback.In other words, ""thermal runaway"" describes a process which is accelerated by increased temperature, in turn releasing energy that further increases temperature. In chemistry (and chemical engineering), this risk is associated with strongly exothermic reactions that are accelerated by temperature rise. In electrical engineering, thermal runaway is typically associated with increased current flow and power dissipation, although exothermic chemical reactions can be of concern here too. Thermal runaway can occur in civil engineering, notably when the heat released by large amounts of curing concrete is not controlled. In astrophysics, runaway nuclear fusion reactions in stars can lead to nova and several types of supernova explosions, and also occur as a less dramatic event in the normal evolution of solar mass stars, the ""helium flash"".There are also concerns regarding global warming that a global average increase of 3-4 degrees Celsius above the preindustrial baseline could lead to a further unchecked increase in surface temperatures. For example, releases of methane, a greenhouse gas more potent than CO2, from wetlands, melting permafrost and continental margin seabed clathrate deposits could be subject to positive feedback.