Patent
High efficiency power converter
TLDR
In this paper, a high efficiency power converter comprises a boost converter for converting an input voltage to a first voltage on a first output, a buck converter, a linear regulator, and a voltage detector for detecting the input voltage for preventing a reverse current flowing from the second output to the buck converter.Abstract:
A high efficiency power converter comprises a boost converter for converting an input voltage to a first voltage on a first output, a buck converter for converting the input voltage to a second voltage on a second output, a linear regulator for converting the first voltage to a third voltage on the second output when the second voltage is lower than a first threshold, and a voltage detector for detecting the input voltage for preventing a reverse current flowing from the second output to the buck converter when the input voltage is lower than a second threshold.read more
Citations
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Patent
Display screen or portion thereof with graphical user interface
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TL;DR: In this paper, a handle assembly, a first endoscopic portion, a motor, and a first effector are described, and the first end effector is configured to perform a first stapling function.
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Motor-driven surgical cutting and fastening instrument with tactile position feedback
TL;DR: In this article, a surgical cutting and fastening instrument is described, which includes an end effector comprising an elongate channel, a clamping member pivotably connected to the channel, and a moveable cutting instrument for traversing the channel to cut an object clamped in the end-effector by the clamped member when the member is in a clamped position.
References
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Patent
Control circuit and method for maintaining high efficiency over broad current ranges in a switching regulator circuit
TL;DR: In this paper, a circuit and method for controlling a switching voltage regulator having a switch including one or more switching transistors and an output adapted to supply current at a regulated voltage to a load including an output capacitor is presented.
Patent
Circuit for enhancing power delivery of an energy source
B. Chester Hwang,Ashok R. Patil +1 more
TL;DR: In this paper, a dual function dual-function circuit was proposed to enhance the power delivery of an energy source by using a boost converter and a buck converter in conjunction with a storage capacitor to store a voltage higher than the source voltage.