BROWSE
Detail
Registered OSCILLATOR
- Inventors
- Seok Ju Yun, Lee Hui Dong, Kim Kwi Dong, Kwon Jong-Kee
- Application No.
- 12844686 (2010.07.27)
- Publication No.
- 20110018644 (2011.01.27)
- Registration No.
- 8264293 (2012.09.11)
- Country
- UNITED STATES
- Project Code
- 09MB2100, Development of Analog Circuit Techniques for Mixed SoC based on 45nm CMOS Technology, Kwon Jong-Kee
- Abstract
- Provided is a transformer-based oscillator which is suited to oscillate frequencies in multiple bands. An oscillator includes a transformer resonance unit and a plurality of complementary transistors. The transformer resonance unit includes a primary coil and a secondary coil corresponding to the primary coil. The plurality of complementary transistors have gates and drains between which both ends of the transformer resonance unit are respectively connected. Thus, the oscillator may operate in a differential mode or common mode according to the phase of the transformer resonance unit. Also, a complementary transistor constituting a multiband oscillation loop may be independently connected to both ends of the transformer resonance unit, and an oscillation loop of at least one band may be selected out of a multiband oscillation loop using a switch unit. Thus, the oscillator may be suited to oscillate resonance frequencies in multiple bands.