Tournatory
David C.g. Tournatory, San Francisco, CA US
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20130214752 | Low-noise, high bandwidth quasi-resonant mode switching power supply - High bandwidth, low noise switching power supply operating in quasi-resonant mode for filtering switching harmonic noise, while providing a fast control bandwidth and power at high efficiency. The power supply has an LCL tank defining a resonance period T | 08-22-2013 |
20130214858 | Dynamic power supply employing a linear driver and a switching regulator - A highly efficient, high control bandwidth and high-speed power supply with a linear driver and a switching regulator for regulating an output based on a control signal. The linear driver has a first input for receiving the control signal and a second input connected to the output for receiving negative feedback. The driver's output is controlled by its two inputs and has a capacitor connected in series with it to generate a capacitor voltage V | 08-22-2013 |
David Christian Gerard Tournatory, San Francisco, CA US
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20120025799 | SENSING AND FEEDBACK IN A CURRENT MODE CONTROL VOLTAGE REGULATOR - The disclosed embodiments of voltage regulators incorporate a current mode control architecture. In one embodiment, a comparator mechanism triggers a transition in a power switch when the error in the regulated output voltage is equal to a proportionally scaled value of current provided at an output filter. The voltage regulator includes a power switch having an input and an output. The power switch is configured to provide a first voltage during a first conduction period and a second voltage during a second conduction period. An output filter is coupled between the power switch output and an output terminal to be coupled to a load. A comparator mechanism has a reference input coupled to a reference voltage, a feedback input coupled to sense a feedback voltage at the output filter, a current sensing input coupled to sense a current sensing voltage corresponding to a current provided to the output filter, and an output in communication with the power switch input. The comparator mechanism is configured to trigger responsive to a difference between the feedback voltage and the reference voltage equaling the current sensing voltage. The triggering causes a transition of the power switch from the second conduction period to the first conduction period. | 02-02-2012 |
David Christian Gerard Tournatory, Redwood City, CA US
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20140210266 | SWITCHING REGULATOR CIRCUITS AND METHODS - The present disclosure includes switching regulator circuits and methods. In one embodiment, a first switching regulator stage receives a first input voltage and produces a first voltage on a first node. A second switching regulator stage receives the first input voltage and produces a second voltage on a second node. A capacitor includes a first terminal coupled to the first node and a second terminal coupled to the second node, and the first switching regulator stage and the second switching regulator stage are configured to set a first voltage on the first node and to set a second voltage on the second node. | 07-31-2014 |
20150028832 | SWITCHING REGULATOR CIRCUITS AND METHODS - The present disclosure includes switching regulator circuits and methods. In one embodiment, multiple switching regulator stages are coupled to an output. A first switching regulator stage is operated at a different frequency than a second switching regulator stage. In another embodiment, one switching regulator stage is operated at a different duty cycle. Embodiments of the present disclosure may include multiple switching regulator stages that cancel ripple at an output node. | 01-29-2015 |
David Christian Gerard Tournatory, San Carlos, CA US
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20140184177 | Switching Regulators - Apparatus having corresponding methods comprise: a first switching regulator coupled to an output node; a second switching regulator coupled to the output node through a capacitor, wherein the capacitor comprises a first terminal coupled to the output node, and a second terminal coupled to the second switching regulator; and a master controller configured to control a voltage on the output node, wherein the master controller comprises a first feedback input coupled to the first terminal of the capacitor, and a second feedback input coupled to the second terminal of the capacitor; wherein the master controller is further configured to control a voltage on the second terminal of the capacitor. | 07-03-2014 |