Uncooled detectors for thermal imaging cameras
... imaging is an extremely useful technology. In the beginning of the 1970’s the US Military wanted to bring the technology to every soldier. In order to do so, thermal imaging cameras needed to become a lot more compact, portable and definitely a lot less expensive. It became very clear that in order ...
... imaging is an extremely useful technology. In the beginning of the 1970’s the US Military wanted to bring the technology to every soldier. In order to do so, thermal imaging cameras needed to become a lot more compact, portable and definitely a lot less expensive. It became very clear that in order ...
FMS2020-001 10W GaAs WIDEBAND SPDT SWITCH Features Product Description
... The device has an MSL rating of Level 2. To determine this rating, prefonditioning was performed to the device per the Pb-Free solder profile defined within IPC/JEDEC J-STD-020C, Moisture/Reflow sensitivity classification for non-hermetic solid state surface mount devices. ...
... The device has an MSL rating of Level 2. To determine this rating, prefonditioning was performed to the device per the Pb-Free solder profile defined within IPC/JEDEC J-STD-020C, Moisture/Reflow sensitivity classification for non-hermetic solid state surface mount devices. ...
AD581 数据手册DataSheet 下载
... addition, total supply current to the device, including the output buffer amplifier (which can supply up to 10 mA) is typically 750 µA. The long-term stability of the bandgap design is equivalent or superior to selected Zener reference diodes. The AD581 is recommended for use as a reference for 8-, ...
... addition, total supply current to the device, including the output buffer amplifier (which can supply up to 10 mA) is typically 750 µA. The long-term stability of the bandgap design is equivalent or superior to selected Zener reference diodes. The AD581 is recommended for use as a reference for 8-, ...
FJPF13009 NPN Silicon Transistor FJPF13009 — NPN Silicon T
... HEREIN TO IMPROVE RELIABILITY, FUNCTION, OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. THESE SPECIFICATIONS DO NOT EXPAND THE T ...
... HEREIN TO IMPROVE RELIABILITY, FUNCTION, OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. THESE SPECIFICATIONS DO NOT EXPAND THE T ...
1,500W / 4 Ohms Power Amplifier Rod Elliott (ESP) Introduction
... likely), that's fine, but we need to add more to allow for elevated temperature. I have elected to use 9 output devices, with a tenth device used as a driver. This maintains worst case peak dissipation at 212W - not much of a safety margin, but it should be ok in practice - in part because the suppl ...
... likely), that's fine, but we need to add more to allow for elevated temperature. I have elected to use 9 output devices, with a tenth device used as a driver. This maintains worst case peak dissipation at 212W - not much of a safety margin, but it should be ok in practice - in part because the suppl ...
1,500W / 4 Ohms Power Amplifier Rod Elliott (ESP) Introduction
... likely), that's fine, but we need to add more to allow for elevated temperature. I have elected to use 9 output devices, with a tenth device used as a driver. This maintains worst case peak dissipation at 212W - not much of a safety margin, but it should be ok in practice - in part because the suppl ...
... likely), that's fine, but we need to add more to allow for elevated temperature. I have elected to use 9 output devices, with a tenth device used as a driver. This maintains worst case peak dissipation at 212W - not much of a safety margin, but it should be ok in practice - in part because the suppl ...
AP1121
... 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 ...
Slide 1
... (b) select and use the equation for resistance V = IR (c) define the ohm; (d) state and use Ohm’s law; The electrical resistance of an electrical element is the opposition to the passage of an electric current through that element. Electrical resistance shares some conceptual parallels with the mech ...
... (b) select and use the equation for resistance V = IR (c) define the ohm; (d) state and use Ohm’s law; The electrical resistance of an electrical element is the opposition to the passage of an electric current through that element. Electrical resistance shares some conceptual parallels with the mech ...
DLD101 LINEAR MODE CURRENT SINK LED DRIVER DFN3030D-8
... Figure 12 shows a typical application circuit diagram for driving an LED or string of LEDs. Note that the pre-biased transistor (Q2) has the option of bypassing the series base resistor by connecting directly to pin 7. The N-MOSFET (Q1) is configured as a VBE referenced current sink and is biased on ...
... Figure 12 shows a typical application circuit diagram for driving an LED or string of LEDs. Note that the pre-biased transistor (Q2) has the option of bypassing the series base resistor by connecting directly to pin 7. The N-MOSFET (Q1) is configured as a VBE referenced current sink and is biased on ...
FSDM311A Green Mode Fairchild Power Switch (FPS™) FSD M
... control IC are integrated, making it easier for the control IC to detect the temperature of the SenseFET. When the temperature exceeds approximately 145°C, thermal shutdown is activated. ...
... control IC are integrated, making it easier for the control IC to detect the temperature of the SenseFET. When the temperature exceeds approximately 145°C, thermal shutdown is activated. ...
LM138/LM338 5-Amp Adjustable Regulators
... sometimes necessary to add protection diodes to prevent the capacitors from discharging through low current points into the regulator. Most 20 µF capacitors have low enough internal series resistance to deliver 20A spikes when shorted. Although the surge is short, there is enough energy to damage pa ...
... sometimes necessary to add protection diodes to prevent the capacitors from discharging through low current points into the regulator. Most 20 µF capacitors have low enough internal series resistance to deliver 20A spikes when shorted. Although the surge is short, there is enough energy to damage pa ...
OPA549 High-Voltage, High-Current OPERATIONAL AMPLIFIER DESCRIPTION
... status. Figure 3 shows an example implementing this function. This function not only conserves power during idle periods (quiescent current drops to approximately 6mA) but also allows multiplexing in multi-channel applications. See Figure 12 for two ...
... status. Figure 3 shows an example implementing this function. This function not only conserves power during idle periods (quiescent current drops to approximately 6mA) but also allows multiplexing in multi-channel applications. See Figure 12 for two ...
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 ...
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.