Ft doubler: Difference between revisions
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[[File:ft-doubler-circuit.jpg|thumb|350px|right|f<sub>t</sub> doubler circuit]] | |||
The '''f<sub>t</sub> doubler circuit''' is a transistor amplifier topology, invented by [[Carl Battjes]], | The '''f<sub>t</sub> doubler circuit''' is a transistor amplifier topology, invented by [[Carl Battjes]], | ||
that has a current gain of 2 even at the | that has a current gain of 2 even at the transition frequency of the transistors that are used in the circuit. | ||
It is used heavily in Tektronix instruments and several Tektronix integrated circuits implement this approach. | It is used heavily in Tektronix instruments and several Tektronix integrated circuits implement this approach. | ||
{{PatentLinks|Ft doubler}} | |||
==Implemented in== | ==Implemented in== | ||
* [[155-0061-00]] / [[203-0126-90]] | |||
* [[155-0064-00]] | * [[155-0064-00]] | ||
* [[155-0078-00]] | * [[155-0078-00]] | ||
* [[155-0080-00]] | * [[155-0080-00]] | ||
* [[155-0175-00]] | * [[155-0175-00]] | ||
* [[155-0178-00]] | |||
* [[155-0181-00]] | * [[155-0181-00]] | ||
* [[155-0187-00]] | |||
* ... | * ... | ||
[[Category:Circuits and Concepts]] | [[Category:Circuits and Concepts]] | ||
Latest revision as of 04:25, 8 June 2024
The ft doubler circuit is a transistor amplifier topology, invented by Carl Battjes, that has a current gain of 2 even at the transition frequency of the transistors that are used in the circuit.
It is used heavily in Tektronix instruments and several Tektronix integrated circuits implement this approach.
Patents that may apply to Ft doubler
| Page | Title | Inventors | Filing date | Grant date | Links |
|---|---|---|---|---|---|
| Patent US 3633120A | Amplifier circuit | Carl Battjes | 1970-09-16 | 1972-01-04 | Ft doubler • 155-0061-00 • 203-0126-90 • 155-0064-00 • 155-0078-00 • 155-0080-00 • 155-0175-00 • 155-0178-00 • 155-0181-00 • 155-0187-00 |