Current sensing in an on-die direct current-direct current (DC-DC) converter for measuring delivered power

Current sensing in an on-die direct current-direct current (DC-DC) converter for measuring delivered power

Current sensing in an on-die direct current-direct current (DC-DC) converter for measuring delivered power is disclosed. A DC-DC converter converts input voltage to output current at an output voltage coupled to a load circuit. The DC-DC converter includes a high side driver (HSD) circuit to drive t...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Price, Burt Lee, Yun, Wenjun
Format: Patent
Sprache:eng
Schlagworte:
AMPLIFIERS
APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS
BASIC ELECTRONIC CIRCUITRY
CONTROL OR REGULATION THEREOF
CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
PULSE TECHNIQUE
TESTING
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Beschreibung
Zusammenfassung:Current sensing in an on-die direct current-direct current (DC-DC) converter for measuring delivered power is disclosed. A DC-DC converter converts input voltage to output current at an output voltage coupled to a load circuit. The DC-DC converter includes a high side driver (HSD) circuit to drive the output current in a first stage, and a low side driver (LSD) circuit to couple the power output to a negative supply rail (GND) in a second phase, output current being periodic. The DC-DC converter includes an amplifier circuit to equalize an output voltage and a mirror voltage. Based on the mirror voltage, the current sensing circuit generates mirror current that corresponds to driver current. The mirror current can be measured as a representation of the output current delivered to the load circuit. A plurality of the DC-DC converters can provide multi-phased current to the load circuit for providing power to the load circuit.