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This work presents a high-voltage (HV) operational amplifier (OPA). OPAs are widely used in signal conditioning circuits for industrial applications and integrated circuits (ICs). Particularly, in HV applications like BMS (battery management system), the signal conditioning circuits are always used to transfer voltage signal between HV domain and low voltage (LV) domain. Notably, the voltage from...
This work presents a pair of low power high-voltage (HV) transmitters for battery management systems (BMS). Besides, the HV transmitter is designed using CMOS transistors without any isolator. To realize a solution on silicon, the proposed HV Transmitter shall be fabricated using an advanced HV semiconductor process, which usually is constrained by the voltage drop limitation between gate and source...
This paper presents an on-chip high-voltage (HV) current sensor for battery module monitoring. Battery management systems (BMS) are key technology of electric vehicles (EV) or hybrid EV. BMS is assembled by battery modules consisting of series of battery cells. Owing to high supply voltage and large current, the HV current sensors are needed for security, but they are not easily implemented on chip...
This work presents a high voltage operational amplifier (HVOPA) and a high voltage transceiver (HVT) for Battery Management Systems (BMS). Battery Interconnect Modules (BIM) in BMS must be able to accommodate input voltage up to tens of volts, perhaps even hundreds of volts, which is difficult to be realized using a logic-based process. To realize a possible solution on silicon, BIM shall be fabricated...
This work presents a Battery Interconnect Module (BIM) with high voltage (HV) transceiver for Battery Management Systems (BMS). BIM in BMS must be able to accommodate input voltage up to tens of volts, perhaps even hundreds of volts, which is difficult to be realized using a logic-based solution. To realize a possible solution on silicon, BIM shall be fabricated using an advanced HV semiconductor...
This work presents a multi-channel high voltage analog multiplexer with digital calibration for battery management systems (BMS). For a high voltage battery management systems, the front end circuit must be able to accommodate input voltage up to tens of volts, perhaps even hundreds of volts. To realize a possible solution on silicon, the front end of BMS shall be fabricated using an advanced HV (high...
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