Method and apparatus of a resonant oscillator separately driving two independent functions
US8618891B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 30, 2011 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | Dec 30, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B2200/0062
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Capacitive adjustment in an RCL resonant circuit is typically performed by adjusting a DC voltage being applied to one side of the capacitor. One side of the capacitor is usually connected to either the output node or the gate of a regenerative circuit in an RCL resonant circuit. The capacitance loading the resonant circuit becomes a function of the DC voltage and the AC sinusoidal signal generated by the resonant circuit. By capacitively coupling both nodes of the capacitor, a DC voltage can control the value of the capacitor over the full swing of the output waveform. In addition, instead of the RCL resonant circuit driving a single differential function loading the outputs, each output drives an independent single ended function; thereby providing two simultaneous operations being determined in place of the one differential function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.