bias current

bias current

[′bī·əs ‚kər·ənt]
(electronics)
An alternating electric current above about 40,000 hertz added to the audio current being recorded on magnetic tape to reduce distortion.
An electric current flowing through the base-emitter junction of a transistor and adjusted to set the operating point of the transistor.
References in periodicals archive ?
Tenders invited for Supply of Edfa with tec stablised pump semiconductor lasers, driven by precision variable bias current sources
In many common amplifiers the slew-rate is limited by the bias current of both the input differential pair and output branch; then, for driving high capacitive loads it is necessary to use an output-stage as a class AB one (Rijns & Wallinga, 1990; Yavari, 2010).
DC voltage supply ranges from +12 to +15 Vdc while bias current ranges from 80 mA to 1300 mA.
To support L and C measurements that reflect how the components will behave in an actual application, many LCR meters include a bias voltage source as well as a bias current source.
3 Hz, and all input channels incorporate 4 mA bias current for integrated electronic piezoelectric (IEPE) signal conditioning for accelerometers and microphones, ideally positioning the module for machine condition monitoring, NVH, and phased array data acquisition applications.
3, the LT4321's bias current does not corrupt detection and classification.
Input bias current of 50-nA is orders of magnitude lower than the 12,000-nA bias current of other in amps, while the 100-?
For almost the same active area the new CCI provides the same input resistance on port X but the bias current is halved.
Optimized for ultra-stable thermoelectric temperature control applications, the WTC3243 maintains precision temperature regulation using an adjustable sensor bias current and error amplifier circuit that operates directly with thermistors, RTDs, AD590, and LM335 type temperature sensors.
The amplification stage requires wide bandwidth for accurate signal detection, low bias current, and low input capacitance for compatibility with the photodiode detector output, and fast settling time to ensure limited distortion and speed of the system.
Figure 7 shows the insertion loss over frequency at four different forward bias current values.