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US 11,349,435 B1Granted
Current-mode square wave oscillator
AssigneesSaudi Arabian Oil Company, King Fahd University of Petroleum and Minerals
InventorsAbdulrahman Alshuhail, Hussain Alzaher
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Abstract
A square wave oscillator includes a Schmitt Trigger with a first output that outputs a first output current, a capacitor connected to the first output of the Schmitt Trigger, and a resistor that connects the capacitor to an input of the Schmitt Trigger to form a closed-loop negative feedback. The closed-loop negative feedback sustains an oscillation of the square wave oscillator and causes a frequency and an amplitude of the oscillation to be independent of a supply voltage of the Schmitt Trigger.
Claims15
A square wave oscillator comprising:
- a Schmitt Trigger with a first output that outputs a first output current;
- a capacitor connected to the first output of the Schmitt Trigger;
- and
- a resistor that connects the capacitor to an input of the Schmitt Trigger to form a closed-loop negative feedback that:
- sustains an oscillation of the square wave oscillator;
- and
- causes a frequency and an amplitude of the oscillation to be independent of a supply voltage of the Schmitt Trigger,
- wherein an entirety of the square wave oscillator includes only a single resistor.
5 more elements
Dependencies are inferred from the claim text.