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Design of DC Level Shifter for Daisy Chain Interface
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 Title & Authors
Design of DC Level Shifter for Daisy Chain Interface
Yeo, Sung-Dae; Cho, Tae-Il; Cho, Seung-Il; Kim, Seong-Kweon;
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In this paper, a design of DC level shifter transmitting and receiving control and data signal which have various DC level through daisy chain interface between master IC and slave is introduced in the cell voltage monitoring (CVM). Circuit designed with a latch structure have a function to operate in high speed and for output of variable DC level through transmission gate. As a result of the simulation and the measurement, it was confirmed that control and data signal could be transferred according to the change of DC level from 0V to 30V. Delay time was measured about 170ns. but, it was considered as a negligible tolerance due to a parasitic capacitance of measuring probe and test board.
DC Level Shifter;Daisy Chain Interface;Cell Voltage Monitoring(CVM);Battery Management System(BMS);
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