Analog Devices,inc.

Sergei Slavnov

Guillaume De Cremoux

Marc E Dagan

Gavin Galloway

A buck converter comprising a controller arranged to monitor an output voltage of the converter, the controller comprising: a comparator arranged to compare an output voltage at an output of the buck converter with a reference voltage, and a modification circuit within the comparator or connected to a modification signal input of the comparator and arranged to produce a correction signal to modify the operation of the comparator; and an output.

Buck converter with comparator output signal modification circuit

A buck converter comprising a controller arranged to monitor an output voltage of the converter, the controller comprising: a comparator arranged to compare an output voltage at an output of the buck converter with a reference voltage, and a modification circuit within the comparator or connected to a modification signal input of the comparator and arranged to produce a correction signal to modify the operation of the comparator.

Buck converter with hysteresis correction

A system and method for battery isolation in a charging system includes an isolation diode connected to a charger input voltage and a PNP pass transistor connected in series between the isolation diode and a battery. The pass device conducts a charging current in response to a drive signal applied to its base; the pass transistor side of the diode is at a voltage V . A first switch couples the pass transistor's base to V when V >V such that the pass transistor's base-collector junction blocks current from V from flowing through the pass transistor when the charger is not in use, and a second switch couples the base to V when V >V such that the pass transistor's base-emitter junction blocks current from the battery from flowing through the pass transistor when the charger is not in use.

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Loanhead, United Kingdom

Sergei Slavnov