Voltage controlled oscillator having a 50% duty cycle

Details Voltage controlled oscillator having a 50% duty cycle Voltage controlled oscillator having a 50% duty cycle

1993-06-30

1994-08-23

Mis, David

Oscillators

Relaxation oscillators

Multivibrators

331 34, 331 57, 331108A, 331113R, 331173, 331177R, H03K 3282, H03L 7099

Patent

active

053411137

ABSTRACT:
A voltage controlled oscillator (VCO) (2) provides an output signal which has a 50% duty cycle and a frequency which depends on the voltage of a control signal (V) supplied thereto. The VCO (2) comprises first (C.sub.L) and second (C.sub.R) capacitors and first (3) and second (5) circuits. Each of the first and second circuits comprises a current supply arrangement (10, 12, 14, or 18, 20, 22) coupled to a respective one of the capacitors (C.sub.L or C.sub.R) and to receive the control signal (V), and a Schmitt trigger (6 or 16) coupled to the respective current supply arrangement and to the other capacitor, which is not coupled to the respective current supply arrangement. Each current supply arrangement of the first and second circuits alternately charges and discharges the respective capacitor, in dependence on the switching of the respective Schmitt trigger, so that the VCO (2) oscillates between the charging of the first and the charging of the second capacitor. The rate of charging of the first and second capacitors is dependent on the voltage of the control signal (V).

REFERENCES:
patent: 4623851 (1986-11-01), Abou et al.
patent: 4623852 (1986-11-01), Abou et al.
patent: 5233315 (1993-08-01), Verhoeven

Affiliated with

Also associated with

Rating

Voltage controlled oscillator having a 50% duty cycle does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Voltage controlled oscillator having a 50% duty cycle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voltage controlled oscillator having a 50% duty cycle will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-505527