Digital voltage controlled oscillator

Details Digital voltage controlled oscillator Digital voltage controlled oscillator

H - Electricity

03

K

H03K 3/02 (2006.01) G06F 1/03 (2006.01) H02M 7/48 (2006.01)

Patent

CA 2371234

A digital voltage controlled oscillator is disclosed. The digital voltage controlled oscillator includes an input for receiving input signals representative of a desired frequency. It also includes a pulse generator and a logic circuit. The logic circuit develops an oscillating signal having a predefined waveform and the desired frequency by controlling the energy contained in the pulses output by the pulse generator. The disclosed digital voltage controlled oscillator also includes a capacitor which is charged by the pulses to a voltage that generally varies in accordance with the predefined waveform and the desired frequency.

L'invention concerne un oscillateur à fréquence commandée numérique qui comprend une entrée pour recevoir des signaux d'entrée représentant une fréquence voulue, ainsi qu'un générateur d'impulsions et un circuit logique. Le circuit logique développe un signal d'oscillation présentant une forme d'onde prédéfinie et la fréquence voulue par la régulation de l'énergie contenue dans les impulsions produites par ledit générateur. Ledit oscillateur à fréquence commandée numérique comprend enfin un condensateur alimenté par les impulsions à une tension qui, généralement, varie en fonction de la forme d'onde prédéfinie et la fréquence voulue.

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