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what is laser bias current?
A bias current is the direct and/or alternating current required to operate a bolometer at a specified resistance under specified ambient conditions.
total search14728 articles
2006-01-25 Zetex device delivers true short circuit current monitoring
Zetex's new current monitor enables true short circuit current monitoring with its wide common mode sense range of 0V to within 2V of the supply voltage applied.
2004-10-20 Zetex current monitor tolerates high voltage transients
The new high accuracy current monitor from Zetex eliminates any ground plane disruption when sensing a load current.
2004-12-15 Zetex current monitor tolerates high voltage transients
Zetex has unveiled a -40C to 125C rated, high accuracy current monitor designed for automotive load measurement and control.
2005-08-04 Zetex current monitor avoids disruption of the ground plane
With a typical temperature coefficient below 100ppm/C, the ZXCT1011 current monitor from Zetex Semiconductors assures accurate measurement of DC currents over the temperature range -40C to 125C.
2001-09-19 Zener voltage regulation with current changes
This application note describes the use of Zener diodes to perform voltage regulation with variable operating currents.
2003-09-18 Yoto Coils RF choke has 50mA to 1A current
The R20x6 RF filter choke coil from Yoto Coils Electronics Co. Ltd features a diameter size of 4-by-15 to 10-by-60.
2002-10-24 Yinxian Yonglin relay has 2A max switching current
The YL-101 electromechanical relay measures 15.4-by-10.4-by-11.8mm, weighs 4g, and has a maximum switching current of 2A.
2004-04-12 Xuyang sidacs offer 10?A breakover current
Xuyang Electronic has released sidac diodes suitable for pulse generators, LPG/LNG ignition switches and high-voltage lamp triggers.
2003-05-12 X3100 Current Measurement Accuracy
This test measures the accuracy of the current sense amplifier circuit of the X3100.
2004-08-09 Wuxi Xuyang germanium diodes withstand 0.5A surge current
Wuxi Xuyang released its 1N60P point-contact germanium diodes that feature a reverse voltage of 20V to 45V, and minimum forward current of 4mA to 150mA.
2009-12-04 WLAN power amp consumes 391mA current
Microsemi has begun volume production of its LX5518 power amplifier for IEEE 802.11b/g/n WLAN applications in the 2.4GHz to 2.5GHz frequency range.
2008-10-03 Wide input range earmarks current-sense amplifiers
Maxim Integrated Products introduces the MAX9928/MAX9929 low-cost, current-sense amplifiers for monitoring charge and discharge currents.
2004-11-24 Why Drive White LEDs with Constant Current?
This app note describes the characteristics of a range of typical LEDs and circuits which achieve the necessary constant-current drive.
2007-08-24 White LEDs emit 7cd at medium-range current
Rohm has developed white LEDs that incorporate a high heat dissipation package to efficiently emit 7cdsaid to be the highest in the industryusing current of 50-150mA.
2006-03-07 White LED driver delivers 120mA output current
Allegro MicroSystems unveiled a new high efficiency charge pump white LED driver that promises a simple, low-cost white LED driver solution for portable electronics display applications.
2006-02-23 White LED achieves 47 lumens/watt at 350mA drive current
Cree Inc. announced general availability of what they claim to be the industry's highest efficacy white power LEDs at 350mA.
2009-04-27 Wet tantalum capacitors offer high ripple current
Vishay Intertechnology Inc. has introduced two wet tantalum capacitors claimed to be the first of such devices to be offered in a true surface-mountable molded package.
2003-01-03 Wanjia power relays withstands 80A of inrush current
The WJ119 series of power relays can withstand an inrush current of up to 80A and is designed for use in air conditioning units, magnetron control in microwave ovens, fax machines, and motor and heater control.
2013-07-15 VPG debuts sealed Z-Foil power current sensing resistors
Vishay Precision Group's VFR brand has unveiled two new ultra-high-precision hermetically sealed Z-Foil power current sensing resistors that offer power ratings of 10W (heat sink) and 3W (free air).
2010-07-05 Voltage to current conversion
Voltage controlled current sources (or VCCSs) can be useful for applications such as active loads for use in component testing or torque control for motors.
2011-02-07 Voltage regulator supplies 1A output current
Torex Semiconductor has developed the XC6602 series, a 0.5V low input, 1A, ultra-low dropout voltage regulator with soft-start.
2015-03-31 Voltage monitors draw 6?A quiescent current
Linear Technology bared its single/dual channel LTC2965 and LTC2966 low-dropout regulators that feature wide operating range, low power consumption and accurate monitoring.
2004-01-21 Vishay Schottky rectifiers handle 3A current load
Vishay Intertechnology Inc. has released a series of high-current-density Schottky rectifiers that provide high efficiency and space savings with high forward current ratings.
2002-08-21 Vishay rolls temperature, current sensing MOSFETs
Vishay Siliconix has announced the introduction of seven new temperature- and current-sensing TrenchFETs in a thermally-enhanced D2PAK package.
2004-12-16 Vishay extends IHLP high-current inductor family
Vishay extended its IHLP family of low-profile, high-current inductors with two new devices.
2002-02-14 Vishay capacitors boast very high rms current rating
By using an advanced metallized-film on the polypropylene dielectric, the GLI power capacitors are claimed to have the industry's highest RMS current rating.
2002-05-07 Vicor filter module meets harmonic current, EMI specs
The ENMods filter module from Vicor Corp. combines the MiniHAM passive harmonic current attenuation module and the FARM3 ac/dc front-end module, as well as additional filtering and holdup component to provide full compliance to EN harmonic current and EMI standards.
2009-04-06 Varistors boast ultralow leakage current
AVX Corp. has developed a zinc oxide-based varistor series that exhibits a low leakage current of 2?A maximum.
2002-09-13 Varian obtains beam current sensor patent
Varian Semiconductor Equipment Associates Inc. has been issued U.S. Patent No. 6,403,972 for its "Methods and Apparatus for Alignment of Ion Beam Systems Using Beam Current Sensors."
2001-09-21 Using the PT6100/6210/6300 as a constant current source
This application note provides an overview and theory of operation of the PT6100/6210/6300 series of integrated switching regulators (ISRs), particularly the use of the series as a constant current source.
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