High Voltage Coil Current Sensor for DC-DC Converters Employing DDCC
Alternative metrics PlumXhttp://hdl.handle.net/11012/51899
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Current sensor is an integral part of every switching converter. It is used for over-current protection, regulation and in case of multiphase converters for balancing. A new high voltage current sensor for coil-based current sensing in DC-DC converters is presented. The sensor employs DDCC with high voltage input stage and gain trimming. The circuit has been simulated and implemented in 0.35 um BCD technology as part of a multiphase DC-DC converter where its function has been verified. The circuit is able to sustain common mode voltage on the input up to 40 V, it occupies 0.387*0.345 mm2 and consumes 3.2 mW typically.
Document typePeer reviewed
Document versionFinal PDF
SourceRadioengineering. 2015 vol. 24, č. 4, s. 988-992. ISSN 1210-2512
- 2015/4