Carl Battjes
Carl Robert Battjes (b. 30 December 1929 in Grand Rapids, MI – d. 28 April 2007 in Portland, OR) was a Tektronix engineer. In 1950 he joined the U.S. Air Force and trained as a fighter pilot flying F-84s. In 1958 he graduated from the University of Michigan with a bachelor's degree in electrical engineering, then moved to Silicon Valley where he worked at Sylvania while completing his master's in electrical engineering from Stanford in 1960.
Battjes had designed a 300 MHz transistor amplifier at Sylvania before he joined Tektronix in 1961 to work on high-speed amplifiers.
He invented the "ft doubler" amplifier topology that has a current gain of 2 even at the transit frequency of the transistors that are used in the circuit.
In 1971, Battjes left the portable oscilloscope group and joined the IC design group within Tektronix.
He took early retirement in 1983, then did consulting for the next 10 years as a registered professional engineer.
Tek Products
- Amplifier hybrid for 11A72
- 155-0207-00 (M156)
- M116
- ...
Products by Carl Battjes
Components by Carl Battjes
| Model | Class | Description | Designers | Used in |
|---|---|---|---|---|
| 155-0175-00 | Monolithic integrated circuit | broadband amplifier | John Addis • Wink Gross • Carl Battjes | 7904A • 7912HB • 7934 • 7104 • R7103 • 7A29 • 7A29P • 7F10 • 067-0587-02 • 067-0587-10 • 11A71 • SCD1000 • EG&G N-AM-173A |
| 155-0207-00 | Monolithic integrated circuit | low-power 50 MHz vertical output amplifier | Carl Battjes | 5223 |
| M116 | Monolithic integrated circuit | vertical and horizontal output amplifier | Carl Battjes |
Patents by Carl Battjes
| Page | Office | Number | Title | Inventors | Company | Filing date | Grant date |
|---|---|---|---|---|---|---|---|
| Patent US 3258765A | US | 3258765A | Digital to analog converter | Carl Battjes | Sylvania | 1963-01-23 | 1966-06-28 |
| Patent US 3633120A | US | 3633120A | Amplifier circuit | Carl Battjes | Tektronix Inc | 1970-09-16 | 1972-01-04 |
| Patent US 3868580A | US | 3868580A | Bootstrapped amplifier | Carl Battjes | Tektronix Inc | 1973-02-12 | 1975-02-25 |
| Patent US 4039899A | US | 4039899A | Geometry and focus correction circuit | Carl Battjes • Harvey Leon Golladay • Michael Rieger • Binoy Rosario • Ken Schlotzhauer | Tektronix Inc | 1976-05-03 | 1977-08-02 |
| Patent US 4236119A | US | 4236119A | Monolithic wideband amplifier | Carl Battjes | Tektronix Inc | 1978-09-11 | 1980-11-25 |
| Patent US 5140198A | US | 5140198A | Image canceling mixer circuit on an integrated circuit chip | Don H. Atherly • Carl Battjes | Seiko Epson | 1989-08-30 | 1992-08-18 |
Publications
- "Who Wakes the Bugler?", in The Art and Science of Analog Circuit Design, Jim Williams (Ed.), July 1998. ISBN 978-0-7506-7062-3. → Google Books
- "Short Pulse Technique of Adjusting Wideband Amplifiers", in Tekscope Vol. 3 No. 1 January 1971
- ...
Links
- Carl Battjes Obituary @ OregonLive
- please add
