HEV/EV traction inverter power stage with 3 types of IGBT/SiC bias-supply solutions reference design
TIDA-020014
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Key Document
Description
This reference design presents a traction inverter single-phase power stage with three 12-V car battery inputs, 4.2-W bias supply solutions for hybrid electric vehicle and electric vehicle (HEV/EV) systems. All bias-supply solutions accept a wide input range of 4.5 V to 42 V DC from a 12-V car battery, and generate outputs as +15 V, –8 V or +20 V, –4 V configurable and up to 180-mA output current. The power stage includes the isolated gate drivers with 5.7-kVRMS reinforced isolation and designed in 100-mm × 62-mm form factor fitting on SiC/IGBT half bridge modules. It includes isolated DC bus sensing, isolated temperature sensing, logic shoot-through protection and diagnostic features. Apart from startup, efficiency, load regulation tests under low voltage input, all bias supplies are also connected with power stage and IGBT module for CMTI, double pulse, and short-circuit tests under high voltages.
Features
- Traction-inverter, single-phase, power-stage design includes dual-channel isolated gate driver, isolated DC bus voltage sensing, and isolated temperature sensing
- Three types of SiC/IGBT bias-supply solutions for IGBT/SiC isolated gate drivers
- Wide-VIN converters over the input voltage of 4.5-V to 42-V DC
- Output configurable as +15 V, –8 V or +20 V, –4 V at loads up to 180 mA for driving Si IGBT and SiC MOSFET modules
- Primary-side regulation with no optocoupler for extended lifetime and small form factor
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TI Devices (12)
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AMC1301-Q1 |
Automotive Precision ±250mV-Input 3µs-Delay Reinforced Isolated Amplifier |
Isolation |
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AMC1311-Q1 |
Automotive 2-V input, reinforced isolated amplifier with high CMTI for voltage sensing |
Isolation |
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CSD18543Q3A |
60V, N ch NexFET MOSFET™, single SON3x3, 9.9mOhm |
MOSFETs |
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ISO5852S-Q1 |
Automotive 2.5-A/5-A 5.7-kV RMS single channel isolated gate driver with protection features |
Gate drivers |
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LM46002-Q1 |
Automotive Qualified 3.5V to 60V, 2A Synchronous Step-Down Voltage Converter |
Step-down (buck) regulators |
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LM5180-Q1 |
Automotive 65-VIN PSR flyback converter with 100-V, 1.5-A integrated power MOSFET |
Offline & isolated DC/DC controllers & converters |
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LM74700-Q1 |
3.2-V to 65-V, 80-uA IQ automotive ideal diode controller |
Power switches |
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SN6505B-Q1 |
Automotive, low-noise, 1-A, 420-kHz transformer driver with soft start for isolated power supplies |
Power for signal isolators |
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TPS3700-Q1 |
Automotive high-voltage (18-V) window voltage detector for overvoltage and undervoltage monitoring |
Power management |
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TPS40210-Q1 |
4.5V to 52V Wide Input range current mode boost controller with 700 mV reference voltage |
Step-up (boost) regulators |
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TPS709 |
150-mA, 30-V, ultra-low-IQ, low-dropout voltage regulator with reverse current protection and enable |
Power management |
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TPS7B82-Q1 |
Automotive 300-mA, off-battery (40-V), ultra-low-IQ, low-dropout voltage regulator with enable |
Power management |
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Technical documentation
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User guide (1)
Title | Type | Size (KB) | Date |
| PDF | 26487 |
03 Apr 2019
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Design files (7)
| ZIP | 2645 |
03 Apr 2019
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