Voltage regulator

About: Voltage regulator is a research topic. Over the lifetime, 33536 publications have been published within this topic receiving 350859 citations.

Programmable Analog-to-Digital Converter for Low-Power DC–DC SMPS

Abstract: An application-specific delay-line based windowed analog-to-digital converter (ADC) with programmable reference voltage, conversion time, and accuracy of voltage regulation, is introduced. The ADC can be fully implemented on a small silicon area and is suitable for implementation in various integrated digital controllers for high-frequency low-power switch-mode power supplies. The programmable characteristics are achieved through the utilization of the inherent averaging effect of the delay line and through the adjustments of delay cells' propagation times. The ADC is implemented in a standard 0.18 m CMOS technology, as a part of a high-frequency digital controller integrated circuit, and tested with a 1.5 MHz, 1 W buck dc-dc converter.

Voltage regulator for regulating an output voltage from a charge pump and method therefor

Abstract: An SRAM memory cell (10) is provided a boosted voltage by a charge pump (56) to reduce the soft error rate within the SRAM (10) and to improve bit cell stability. A voltage regulator (58) is coupled to the charge pump (56) to regulate the operation of the charge pump (56) and its outputted boosted voltage. The voltage regulator (58) regulates the boosted voltage over three operating states: low supply voltage, steady state operation, and burn-in.

Low power regulator system and method

Abstract: Methods are disclosed for collecting sensor data in a pressure regulator system including a controller and a plurality of sensors (34, 35, 44, 48, 58). The controller and each of the individual sensors are activated as required to collect sensor data during a sampling period thereby reducing the amount of power consumed by the pressure regulator system. Further power conservation measures are implemented by using a battery sensor to monitor the capacity of the pressure regulator battery and placing the pressure regulator in reduced power consumption operating modes as the capacity of the battery is reduced.

Multimode voltage regulator circuit

Abstract: A multimode voltage regulator circuit includes a linear regulator sub-circuit configured to supply current to a load in a low-current mode, responsive to a first control signal from a first control path, as well as a switching regulator sub-circuit configured to supply current to the load in a high-current mode, responsive to a second control signal from a second control path. The circuit further comprises a shared error amplifier configured to generate an error signal based on the difference between a reference voltage and a feedback signal coupled from the load, and a switch configured to selectively route the error signal to the first control path in the low-current mode and to the second control path in the high-current mode.

Fast sag/swell detection method for fuzzy logic controlled dynamic voltage restorer

Abstract: In this study, the design and analysis of a fuzzy logic (FL) controlled dynamic voltage restorer (DVR) are presented and extended to perform fast fault detection. A new control method for DVR is proposed by combining FL with a carrier modulated PWM inverter. The proposed control scheme is simple to design and has excellent voltage compensation capabilities. The proposed method for voltage sag/swell detection has the ability of detecting different kinds of power disturbances faster than conventional detection methods. Effectiveness of the proposed detection method is shown by comparison with the conventional methods in the literature. Simulation results under unbalanced supply voltage are presented to evaluate the performance of the designed DVR.