Switchable oscillator circuit

Details Switchable oscillator circuit Switchable oscillator circuit

1985-10-31

1986-09-23

LaRoche, Eugene R.

Oscillators

Convertible

331108R, 331116FE, 331117FE, 331158, 331167, H03B 500

Patent

active

046138293

ABSTRACT:
An oscillator circuit operable in different modes. The oscillator circuit, when operated as a crystal oscillator, is initially operated as a standard inverter oscillator requiring a low start-up voltage. Once the circuit oscillates, an hysteresis feedback network is inserted in the amplifying section of the oscillator providing a clock signal with sharper leading and falling edges. The circuit thus enables the start up of the oscillator at low voltages and ensures greater noise immunity following start-up. The oscillator circuit, when operated as an RC oscillator, may be operated as a Schmitt-trigger oscillator as soon as the oscillator is turned-on.

REFERENCES:
patent: 4196404 (1980-04-01), Ebihara
patent: 4282496 (1981-08-01), Heuner
patent: 4307354 (1981-12-01), Miyagawa et al.
patent: 4370625 (1983-01-01), Someshwar

Affiliated with

Also associated with

Rating

Switchable oscillator circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-768372