| 摘要 |
A circuit arrangement for generating oscillations with a defined frequency includes an oscillator circuit ( 30, 32 ) for generating the oscillations and a dedamping circuit ( 18, 20 ) connected to the oscillator circuit for compensating any damping of the oscillator circuit. The dedamping or damping compensation by the dedamping circuit is accomplished with the aid of a rectifier circuit ( 60, 62 ). The dedamping circuit is a bridge circuit of CMOS field effect transistors ( 22, 24; 26, 28 ) which are controlled in their operation in closed loop fashion by respective rectifier circuit branches which are in turn connected to the oscillator circuit to provide a proportional closed loop control of the damping compensation. |
