Errors Due to Shared Leadwires in Parallel Strain Gage Circuits
... the desired circuit performance. Selection of the common leadwire resistance in this fashion not only solves the initial imbalance and leadwire temperature problems, but also reduces the calibration and crosstalk errors. However, it should be noted that if the resistance of the common leadwire is le ...
... the desired circuit performance. Selection of the common leadwire resistance in this fashion not only solves the initial imbalance and leadwire temperature problems, but also reduces the calibration and crosstalk errors. However, it should be noted that if the resistance of the common leadwire is le ...
FAN6862 Highly Integrated Green-Mode PWM Controller
... increases pulse-by-pulse current-limit comparator inverting input voltage slowly after it starts. The typical soft-start time is 4ms. The pulsewidth to the power MOSFET is progressively increased to establish the correct working conditions for transformers, rectifier diodes, and capacitors. The volt ...
... increases pulse-by-pulse current-limit comparator inverting input voltage slowly after it starts. The typical soft-start time is 4ms. The pulsewidth to the power MOSFET is progressively increased to establish the correct working conditions for transformers, rectifier diodes, and capacitors. The volt ...
FAN100 Primary-Side-Control PWM Controller FA N
... During the inductor current discharge time, the sum of output voltage and diode forward-voltage drop is reflected to the auxiliary winding side as (Vo+VF)× Na/Ns. Since the diode forward-voltage drop decreases as current decreases, the auxiliary winding voltage reflects the output voltage best at th ...
... During the inductor current discharge time, the sum of output voltage and diode forward-voltage drop is reflected to the auxiliary winding side as (Vo+VF)× Na/Ns. Since the diode forward-voltage drop decreases as current decreases, the auxiliary winding voltage reflects the output voltage best at th ...
English for electrical and electronics engineers
... amperes per square meter, amperes per square centimeter, or amperes per square millimeter. Current density can also be expressed in amperes per circular mil. In general, the greater the current in a conductor, the higher the current density. However, in some situations, current density varies in dif ...
... amperes per square meter, amperes per square centimeter, or amperes per square millimeter. Current density can also be expressed in amperes per circular mil. In general, the greater the current in a conductor, the higher the current density. However, in some situations, current density varies in dif ...
1-Bit, 10MHz, 2nd-Order, Isolated Delta
... the measurement techniques shown in the Isolation Glossary . Techniques such as inserting grooves and/or ribs on a printed circuit board are used to help increase these specifications. ...
... the measurement techniques shown in the Isolation Glossary . Techniques such as inserting grooves and/or ribs on a printed circuit board are used to help increase these specifications. ...
Magnetics Design 4 - Power Transformer Design
... dimensional limits for creepage and insulation thickness which can waste a high percentage of window area, especially in a small transformer. A bobbin also reduces the area available for windings. Triple insulated wire satisfies the insulation thickness requirement and eliminates the creepage requir ...
... dimensional limits for creepage and insulation thickness which can waste a high percentage of window area, especially in a small transformer. A bobbin also reduces the area available for windings. Triple insulated wire satisfies the insulation thickness requirement and eliminates the creepage requir ...
UQQ-5/20-Q48N-C Datasheet
... (3) Note that Maximum Power Derating curves indicate an average current at nominal input voltage. At higher temperatures and/or lower airflow, the DC-DC converter will tolerate brief full current outputs if the total RMS current over time does not exceed the Derating curve. All Derating curves are pr ...
... (3) Note that Maximum Power Derating curves indicate an average current at nominal input voltage. At higher temperatures and/or lower airflow, the DC-DC converter will tolerate brief full current outputs if the total RMS current over time does not exceed the Derating curve. All Derating curves are pr ...
FDD4243 40V P-Channel PowerTrench MOSFET
... FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION, OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF ...
... FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION, OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF ...
LT1031 - Precision 10 Volt Reference
... used in its design. In the 0.1Hz to 10Hz band, peak-to-peak noise is about 0.5ppm of the DC output. To achieve this low noise, however, care must be taken to shield the reference from ambient air turbulence. Air movement can create noise because of thermoelectric differences between IC package leads ...
... used in its design. In the 0.1Hz to 10Hz band, peak-to-peak noise is about 0.5ppm of the DC output. To achieve this low noise, however, care must be taken to shield the reference from ambient air turbulence. Air movement can create noise because of thermoelectric differences between IC package leads ...
Document
... • A current must pass through the thermistor to measure the voltage and calculate the resistance • The current flowing through the thermistor generates heat because the thermistor dissipates electrical power P = I2RT • The heat generated causes a temperature rise in the thermistor • This is called S ...
... • A current must pass through the thermistor to measure the voltage and calculate the resistance • The current flowing through the thermistor generates heat because the thermistor dissipates electrical power P = I2RT • The heat generated causes a temperature rise in the thermistor • This is called S ...
PD85004
... Thernal vias are required in the PCB layout to effectively conduct heat away from the package. The via pattern has been designed to address thermal, power dissipation and electrical requirements of the device. The via pattern is based on thru-hole vias with 0.203 mm to 0.330 mm finished hole size on ...
... Thernal vias are required in the PCB layout to effectively conduct heat away from the package. The via pattern has been designed to address thermal, power dissipation and electrical requirements of the device. The via pattern is based on thru-hole vias with 0.203 mm to 0.330 mm finished hole size on ...
High-Bandwidth High-Temperature (250 °C / 500 °F) Isolated DC
... and voltage measurement), the passive components like dc-link capacitors as well as the components of the air-cooling system such as thermal interface materials, heat sinks, and fans need to withstand these harsh temperature conditions. For the signal electronics and passives, a converter setup deal ...
... and voltage measurement), the passive components like dc-link capacitors as well as the components of the air-cooling system such as thermal interface materials, heat sinks, and fans need to withstand these harsh temperature conditions. For the signal electronics and passives, a converter setup deal ...
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.