LED Current Balance Using a Variable Voltage Regulator with Low Dropout vDS Control
نویسندگان
چکیده
منابع مشابه
Capacitor-less Low Dropout Voltage Regulator
The study of power management techniques has increased drastically within the last few years corresponding to the vast increase in the use of portable, handheld battery applications. These power management systems typically contain several LDO voltage regulators that require large external capacitors. The large external capacitors can not be fully integrated in standard CMOS technologies and hi...
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An ultra-low quiescent current low-dropout regulator with small output voltage variations and improved load regulation is presented in this paper. It makes use of dynamically-biased shunt feedback as the buffer stage and the LDO regulator can be stable for all load conditions. The proposed structure also employs a momentarily current-boosting circuit to reduce the output voltage to the normal v...
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Low-dropout regulators (LDOs) are widely distributed in SoC designs to supply individual voltage domains, and a digital LDO (DLDO) is favorable for its lowvoltage operation and process scalability. However, as many SoCs generate a load current (ILOAD) variation at sub-A/ns level, voltage regulators require a large areaconsuming output capacitor (COUT) to maintain the output voltage (VOUT) durin...
متن کاملDesign of a capacitor-less low-dropout voltage regulator
A solution to the stability of capacitor-less low-dropout regulators with a 4pF Miller capacitor in Multi-level current amplifier is proposed. With the Miller compensation, a more than 50°phase margin is guaranteed in full load. An extra fast transient circuit is adopted to reduce stable time and peak voltage. When the load changes from light to heavy, the peak voltage is 40mV and chip quiescen...
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Modern power management System-on-a-Chip (SoC) design demands for fully integrated solutions in order to decrease certain costly features such as the total chip area and the power consumption while maintaining or increasing the fast transient response to signal variations. Low-Dropout (LDO) voltage regulators, as power management devices, must comply with these recent technological and industri...
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ژورنال
عنوان ژورنال: Applied Sciences
سال: 2017
ISSN: 2076-3417
DOI: 10.3390/app7020206