current gain

current gain

[′kər·ənt ‚gān]
(electronics)
The fraction of the current flowing into the emitter of a transistor which flows through the base region and out the collector.
References in periodicals archive ?
Contract notice: Driving current gain rail - GW Thiel Road.
At the heart of this new device, ST's advanced double-metal planar base island technology enables the 3STL2540 to maintain consistently high current gain (hFE) of at least 100 over a wide output-voltage range from 0.
The current gain relies on the scaling factor of the four basic current mirrors M1-M3 and M4-M6.
On the basis of the MBE technology, the high current gain Darlington transistor, with a wide bandgap emitter having a very high current gain, obtained by implementing the concept of the heterojunction to increase the current gain of the Darlington transistor using 4H- SiC with a bandgap of 3.
The CTR depends upon the current gain (hfe) of the transistor, the supply voltage to the phototransistor, the forward current through the IRED and operating temperature.
This nonrecognition rule is popular, because it allows taxpayers to escape current gain recognition (unless boot is received).
Bank and thrift holdings of such loans increased $7 billion in 2005:IIIQ, the sixth consecutive quarter of expanding business loan portfolios, although the current gain was the smallest of the six quarters.
Formed on a large diameter silicon substrate, the gallium nitride high electron mobility transistor (GaN-HEMT) achieves a world record transconductance rating of 350mS/mm, a maximum oscillation frequency of 115GHz and a current gain cut off frequency of 56GHz, which are all comparable to figures achieved on conventional silicon carbide (SiC) substrates.
Unfortunately, this strategy fails at high frequencies because the device's internal parasitic capacitances to ground reduce the input impedance, decreasing, therefore, the voltage gain of the preceding stage, while the series inductors reduce the available current gain.
Both devices include three 500 mA (milliamp) write channels with 240x current gain - the industry's most powerful single-channel write output - and one 150 mA low-noise read channel with 100x current gain.
Part of the current gain stems from increased sales and broadening of its seed lines to complement the FS brands.

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