Low frequency oscillator for burst-mode dimming control for...

Details Low frequency oscillator for burst-mode dimming control for... Low frequency oscillator for burst-mode dimming control for...

2011-05-17

2011-05-17

Kinkead, Arnold (Department: 2817)

Oscillators

Automatic frequency stabilization using a phase or frequency...

Particular frequency control means

C331S016000, C327S291000, C315S307000, C315S324000

Reexamination Certificate

active

07944314

ABSTRACT:
Oscillator system and method thereof. The oscillator system includes a first voltage-to-current converter configured to receive a first voltage and generate a first current based on at least information associated with the first voltage, and a second voltage-to-current converter configured to receive a second voltage and generate a second current based on at least information associated with the second voltage. Additionally, the oscillator system further includes a current-mode N-bit digital-to-analog converter configured to receive at least the second current and a first clock signal and to generate a third current based on at least information associated with the second current and the first clock signal. N is a first integer. The first clock signal is associated with a first clock frequency corresponding to a first clock period. Moreover, the oscillator system further includes a current comparator coupled to the first voltage-to-current converter and the current-mode N-bit digital-to-analog converter.

REFERENCES:
patent: 6445143 (2002-09-01), Min

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