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1. WO2020117386 - PRECISION BANDGAP REFERENCE WITH TRIM ADJUSTMENT

Publication Number WO/2020/117386
Publication Date 11.06.2020
International Application No. PCT/US2019/057590
International Filing Date 23.10.2019
IPC
G05F 3/30 2006.01
GPHYSICS
05CONTROLLING; REGULATING
FSYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
3Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
02Regulating voltage or current
08wherein the variable is dc
10using uncontrolled devices with non-linear characteristics
16being semiconductor devices
20using diode-transistor combinations
30Regulators using the difference between the base-emitter voltages of two bipolar transistors operating at different current densities
CPC
G05F 1/46
GPHYSICS
05CONTROLLING; REGULATING
FSYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
1Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
10Regulating voltage or current
46wherein the variable actually regulated by the final control device is dc
G05F 1/461
GPHYSICS
05CONTROLLING; REGULATING
FSYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
1Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
10Regulating voltage or current
46wherein the variable actually regulated by the final control device is dc
461using an operational amplifier as final control device
G05F 1/463
GPHYSICS
05CONTROLLING; REGULATING
FSYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
1Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
10Regulating voltage or current
46wherein the variable actually regulated by the final control device is dc
462as a function of the requirements of the load, e.g. delay, temperature, specific voltage/current characteristic
463Sources providing an output which depends on temperature
G05F 3/30
GPHYSICS
05CONTROLLING; REGULATING
FSYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
3Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
02Regulating voltage or current
08wherein the variable is dc
10using uncontrolled devices with non-linear characteristics
16being semiconductor devices
20using diode- transistor combinations
30Regulators using the difference between the base-emitter voltages of two bipolar transistors operating at different current densities
Applicants
  • QUALCOMM INCORPORATED [US]/[US]
Inventors
  • RASMUS, Todd Morgan
Agents
  • VU, Kenneth
Priority Data
16/211,17805.12.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PRECISION BANDGAP REFERENCE WITH TRIM ADJUSTMENT
(FR) RÉFÉRENCE DE BANDE INTERDITE DE PRÉCISION À RÉGLAGE DE COMPENSATION
Abstract
(EN)
Aspects of the disclosure are directed to generating a reference voltage with trim adjustment. Accordingly, a reference voltage with trim adjustment is generating which involves generating a trim current using at least one of a plurality of selectable parallel elements; inputting the trim current to parallel resistor branches to generate a first scaled voltage; and combining a first voltage with the first scaled voltage to generate the reference voltage.
(FR)
L'invention porte, selon des aspects, sur la génération d'une tension de référence à réglage de compensation. Par conséquent, une tension de référence à réglage de compensation est générée, ce qui consiste : à générer un courant de compensation au moyen d'au moins un élément parmi une pluralité d'éléments parallèles sélectionnables ; à injecter le courant de compensation dans des branches de résistance parallèles de façon à générer une première tension mise à l'échelle ; et à combiner une première tension avec la première tension mise à l'échelle de façon à générer la tension de référence.
Also published as
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