Comparator applications

About: Comparator applications is a research topic. Over the lifetime, 2518 publications have been published within this topic receiving 26639 citations.

Two comparator voltage mode PWM

Abstract: Two comparators are arranged to generate a pulse-width modulator (PWM) control pulse. The first comparator is arranged to start the PWM control pulse, while the second comparator is arranged to stop the PWM control pulse. The first comparator can be a high speed CMOS comparator that includes a built-in offset. The first and second comparators can be arranged such that the built-in offset of the first comparator dominates the overall operation at the start of the control pulse. The start of the PWM control pulse is initiated by a ramp voltage and a predetermined reference level instead of a clock edge. The PWM control pulse can be linearly varied down to a zero pulse width. The PWM control pulse may be used to control the on-time of the switching element in a switching-type converter.

Flexible converter routing apparatus, system and method

Abstract: The present invention is directed to a flexible converter suitable for providing a routing function. A flexible converter of the present invention may provide a desired output utilizing a variety of methods, systems and apparatus without departing from the spirit and scope of the present invention. A routing apparatus may include a converter, at least one comparator and a controller. The converter is capable of providing an output supply from an input supply coupled to the converter, the output supply capable of routing between a first output and a second output. At least one comparator is coupled to the output supply of the converter, the comparator capable of measuring at least one power characteristic of the first output and the second output to a first electrical device and to a second electrical device. The controller is coupled to the comparator; the controller being capable of implementing a process within the converter such that the first output is routed to the first electrical device and the second output is routed to the second electrical device. The first output and the second output are monitored with the at least one comparator and the first output to the first electrical device and the second output to the second electrical device are re-routed based upon the monitoring by the comparator.

High voltage comparator

Abstract: A high voltage comparator circuit quickly identifies the voltage level of the predetermined voltages required for program operations. Through the series of transistors, the precise timing of when the predetermined voltages are at their operating voltage level is identified.

Comparator for an analog to digital converter

Abstract: An improved method and apparatus related to a comparator particularly suited for use in an A/D converter so as to obtain a high resolution, which results in a reduced circuit area and operates with low power consumption. To compare an analog input voltage and reference voltages, the comparator includes chopper type comparators for producing comparison voltages and determination signals, and includes a determination circuit for producing one or more additional determination signals. The chopper type comparators may further include amplifiers and determination circuits.