Processing

Please wait...

Settings

Settings

Goto Application

1. WO2018144388 - ADAPTIVE SLOPE COMPENSATION FOR CURRENT MODE SWITCHING POWER SUPPLY

Publication Number WO/2018/144388
Publication Date 09.08.2018
International Application No. PCT/US2018/015744
International Filing Date 29.01.2018
IPC
H02M 3/156 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
3Conversion of dc power input into dc power output
02without intermediate conversion into ac
04by static converters
10using discharge tubes with control electrode or semiconductor devices with control electrode
145using devices of a triode or transistor type requiring continuous application of a control signal
155using semiconductor devices only
156with automatic control of output voltage or current, e.g. switching regulators
CPC
G05F 1/00
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
H02M 1/00
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
1Details of apparatus for conversion
H02M 1/08
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
1Details of apparatus for conversion
08Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
H02M 2001/0009
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
1Details of apparatus for conversion
0003Details of control, feedback and regulation circuits
0009Devices and circuits for detecting current in a converter
H02M 2001/0025
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
1Details of apparatus for conversion
0003Details of control, feedback and regulation circuits
0025Arrangements for modifying reference value, feedback value or error value in the control loop of a converter
H02M 3/156
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
3Conversion of dc power input into dc power output
02without intermediate conversion into ac
04by static converters
10using discharge tubes with control electrode or semiconductor devices with control electrode
145using devices of a triode or transistor type requiring continuous application of a control signal
155using semiconductor devices only
156with automatic control of output voltage or current, e.g. switching regulators
Applicants
  • LINEAR TECHNOLOGY CORPORATION [US]/[US]
Inventors
  • PADUVALLI, Vikas V.
Agents
  • OGONOWSKY, Brian D.
Priority Data
15/422,37301.02.2017US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ADAPTIVE SLOPE COMPENSATION FOR CURRENT MODE SWITCHING POWER SUPPLY
(FR) COMPENSATION DE PENTE ADAPTATIVE POUR ALIMENTATION ÉLECTRIQUE À COMMUTATION DE MODE DE COURANT
Abstract
(EN)
A current mode switching converter includes a transistor switch, an inductor configured to conduct a ramping inductor current as the transistor switch is turned on and off at a particular duty cycle, and an inductor current sensor generating a current sense signal. The current sense signal has an up-slope portion and a down-slope portion. A separate ramp generator generates a ramp voltage for each switching cycle. A slope compensation circuit compensates the ramp voltage, depending on the duty cycle and other factors, to create a compensated ramp voltage. The compensated ramp voltage is then summed with the current sense signal to create a compensated current sense signal for a comparator. The slope compensation circuit forces the compensated current sense signal to have an up-slope greater than an absolute value of its down-slope at least for duty cycles greater than 50% to rapidly dampen perturbations in the duty cycle.
(FR)
La présente invention concerne un convertisseur de commutation de mode de courant qui comprend un commutateur de transistor, une bobine d'induction configurée pour conduire un courant de bobine d'induction en rampe lorsque le commutateur de transistor est allumé et éteint à un cycle de service particulier, et un capteur de courant de bobine d'induction produisant un signal de détection de courant. Le signal de détection de courant présente une partie de pente montante et une partie de pente descendante. Un générateur de rampe séparé produit une tension de rampe pour chaque cycle de commutation. Un circuit de compensation de pente compense la tension de rampe, en fonction du cycle de service et d'autres facteurs, pour créer une tension de rampe compensée. La tension de rampe compensée est ensuite ajoutée au signal de détection de courant pour créer un signal de détection de courant compensé pour un comparateur. Le circuit de compensation de pente force le signal de détection de courant compensé à avoir une pente montante supérieure à une valeur absolue de sa pente descendante au moins pour des cycles de service supérieurs à 50 % afin d'amortir rapidement des perturbations dans le cycle de service.
Latest bibliographic data on file with the International Bureau