Patent ID: 9225243
Filing Date: 2015-12-29
Classification: H02M,H05B

Abstract:
1. A converter for feeding a load via an inductor with a current having a controlled intensity between a maximum level and a minimum level, the converter comprising: a switch switchable on and off to permit or prevent, respectively, feeding of current towards said inductor, a first current sensor sensitive to the current flowing through said switch when said switch is on, a second current sensor sensitive to the current flowing through said inductor when said switch is off, drive circuitry of said switch to turn said switch off and on upon receiving a first and a second logic signal, respectively, and comparison circuitry coupled to said first and second current sensors to generate first and a second logic signals when, respectively: the current intensity detected by said first current sensor is offset of a given amount with respect to said maximum level, the current intensity detected by said second current sensor is offset of a given amount with respect to said minimum level; and wherein the comparison circuitry includes respective level comparators coupled to the first current sensor and the second current sensor and configured to identify a respective given amount of offset-being established between the intensity of the current detected by the current sensor coupled therewith with respect to said maximum level and said minimum level, respectively and/or wherein the comparison circuitry includes respective level comparators coupled to the first current sensor and the second current sensor via signal dividers to apply a compensation offset to the current intensity value detected by the first current sensor and the second current sensor.