CURRENT BALANCING, CURRENT SENSOR, AND PHASE BALANCING APPARATUS AND METHOD FOR A VOLTAGE REGULATOR

摘要

Described are apparatuses and methods of current balancing, current sensing and phase balancing, offset cancellation, digital to analog current converter with monotonic output using binary coded input (without binary to thermometer decoder), compensator for a voltage regulator (VR), etc. In one example, apparatus comprises: a plurality of inductors coupled to a capacitor and a load; a plurality of bridges, each of which is coupled to a corresponding inductor from the plurality of inductors; and a plurality of current sensors, each of which is coupled to a bridge to sense current through a transistor of the bridge.

主权项

1. An apparatus comprising:
an input supply node; a high-side switch coupled to the input supply node; a low-side switch coupled in series with the high-side switch such that there is a common node coupling the low-side switch and the high-side switch, wherein the common node is to be coupled to an inductor; and a current sensor coupled with the high-side switch and also coupled to the common node, wherein the current sensor is to sense current through the high-side switch, wherein the current sensor is to turn off according to a voltage condition associated with the common node.