Monolithic integrated RC-oscillator

Details Monolithic integrated RC-oscillator Monolithic integrated RC-oscillator

1984-12-13

1986-08-19

LaRoche, Eugene R.

Oscillators

Relaxation oscillators

331108D, 331111, H03K 302

Patent

active

046072381

ABSTRACT:
In a monolithic integrated RC-oscillator comprising only one external frequency-determining network of a capacitance and a discharge circuit, a charging circuit which can be switched on and off periodically is connected to the network, which charging circuit is switched on and switched off by means of a threshold circuit with two switching thresholds when the voltage across the capacitor of the network reaches the lower and the upper switching threshold, respectively. In order to ensure that the frequency of the generated sawtooth signal is independent of a fixed discharge current, which is subject to spreading, and of the temperature coefficient of this current, the charging current of the charging circuit is controlled by the voltage across a second capacitor, which is charged or discharged with a current (I.sub.1) when the frequency-determining capacitance is discharged and which is discharged or charged with a second current when said frequency-determining capacitor is charged.

REFERENCES:
patent: 4413238 (1983-11-01), Pace
patent: 4531237 (1985-07-01), Bar-on et al.

Affiliated with

Also associated with

Rating

Monolithic integrated RC-oscillator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Monolithic integrated RC-oscillator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Monolithic integrated RC-oscillator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-395909