Reference Designs
Voltage and Current Measurement Reference Design for Automotive On-Board Charger System
Texas Instruments
This reference design uses our current shunt amplifiers: operational amplifiers (op amp): ADCs and digital isolators to provide current and voltage measurement for an on-board charger in a hybrid-electric/electric vehicle. The measured current and voltage can be used as control signals for battery-charging optimization. The design is capable of measuring high-side current up to 400-V common-mode voltage while being isolated from the AC portion of the charging circuit to reduce noise.
Features
- High-side current monitoring up to 400-V common-mode and enables short-to-ground protectionLess than 5% current-measurement error for the whole charging current range 1 A to 10 ALess than 10-µS over-current detectionUp to 400-V voltage monitoring with less than 5% errorLess than 10-µS voltage step detection2000-V safety isolation
Applications
- Oscilloscopes & digitizers
- Aircraft cockpit display
- Interconnect/distribution box
- Data acquisition (DAQ)
- Laser distance meter
- DC fast charging station
- Programmable DC power supply
- DC fast charging power module
- Wireless EV charging station
- Circuit breaker (ACB
- MCCB
- VCB)
- DC wallbox charger
Product Categories
- Amplifiers
End Equipment Reference Diagrams
Application Area
End Equipment
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