DC Fast Charging Station
DC Fast Charging Station Content
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Resources
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DESIGNING THE FEEDBACK VOLTAGE RESISTOR DIVIDER IN A DC/DC CONVERTERThe specifications of the feedback (FB) voltage resistor divider in DC-DC converters often poses various design challenges, such as determining the required resistance or adjusting parameters (e.g. output voltage, upper divider resistance or lower divider resistance). Figure 1 shows the various magnitude combinations for the FB upper and lower divider resistances. This article examines the ...
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FLYBACK VS. LLC POWER SUPPLIES: HIGH-VOLTAGE CONVERTERS SERIESIsolated gate drivers are key parts of power converters, and require isolated power supplies to provide the gate driving voltage without breaking the isolation barrier. One of the most frequently used topologies for these applications is the flyback converter. However, increased leakage inductance caused by minimizing the interwinding capacitance loosens the coupling between the primary and second...
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ISOLATED LLC TRANSFORMER DRIVER: MPQ18913The MPQ18913 is a 30V, 6W, high-frequency, automotive LLC transformer driver for isolated bias power supplies. Designed for automotive and industrial applications, this solution can be used as a flyback replacement for biasing IGBTs and SiC FETs. LLC resonant topology enables minimal isolation capacitance, a much higher isolation voltage, and a higher switching frequency. With fewer required compo...
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DESIGNING A REVERSE POLARITY PROTECTION CIRCUIT (PART I)Automotive power systems operate under exceptionally harsh conditions. In particular, the car battery must handle numerous loads, and it can be challenging to determine the state of these loads simultaneously. Designers must consider the possible impact of the various pulses generated by the power line when these loads are under different operating conditions and potential fault states. This is P...
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DESIGNING A REVERSE POLARITY PROTECTION CIRCUIT (PART II)This is Part II of a two-part series on designing a reverse polarity protection circuit. Part I covered the various pulse interferences that necessitate the reverse polarity protection function in automotive electronic products, and reviewed the features of a reverse polarity protection circuit with a P-channel MOSFET. Part II will discuss a reverse polarity protection circuit with an N-channel MO...
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DC FAST CHARGING SYSTEM: MAXIMIZING POWER DENSITY WITH AN LLC TRANSFORMER DRIVERAs the world strives for carbon neutrality, electric vehicles (EVs) are rapidly taking market share from internal combustion engine vehicles. However, one of the issues with electric vehicles is range anxiety, as customers are unsure of how long they will be able to drive without the car needing to be charged. To combat this, governments around the world are massively investing in charging infrast...
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VERSAL AI EDGE (AUTOMOTIVE) FULL POWER MANAGEMENT REFERENCE DESIGN -
VERSAL AI EDGE (AUTOMOTIVE) –M, H DEVICES REFERENCE DESIGN -
VERSAL AI EDGE (AUTOMOTIVE) –L DEVICE REFERENCE DESIGN -
SPARTAN 7 AUTOMOTIVE SOLUTIONThis reference design is intended for powering AMD Xilinx Spartan7 family of FPGAs (S6 - S100). This PMIC based solution combines a small footprint with good efficiency and tight regulation for a low cost solution. The internal sequencer ensures power up and power down sequencing requirements MPQ7920 PMIC with 4x bucks, 5x LDOs Vin 2.7V to 5.5V I2C support QFN-26 (3.5mmx4.5mm) Cost effective and S...
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WEBINAR ON-DEMAND FROM COLD CRANK TO LOAD DUMP - A PRIMER ON AUTOMOTIVE TRANSIENTSThe modern vehicle is packed to the gills with sophisticated electronics, all of which must thrive in a dynamic environment of extreme highs and lows. This applies not only to temperature ranges, but also supply voltages — in particular, the 12V or 24V primary supply that delivers power to myriad subsystems can surge by several times its nominal range (load dump), plummet to near depletion (cold c...
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GATE DRIVING FOR HIGH-VOLTAGE CONVERTERS: UNDERSTANDING ISOLATED GATE DRIVERSGate drivers control the commutation of power switches, such as field-effect transistors, and are used in many high-voltage applications, including solar inverters, uninterruptible power supplies, charging stations, and on-board chargers. Isolating the power path from the sensitive control signals protects the user and prevents malfunctions. Electrical isolation barriers can be implemented in thre...
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ARTIX ULTRASCALE+ AU20P/25P MINIMUM RAILS – LOWEST COST -
ARTIX ULTRASCALE+ AU10P/15P MINIMUM RAILS – LOWEST COST -
ZU1/2/3 FULL POWER MANAGEMENT – LOWEST COST -
ZU1/2/3 MINIMUM RAILS – LOWEST COST -
HIGHLY INTEGRATED BATTERY CHARGER IC USE CASE: BATTERY BACKUP SYSTEMSIn this use case, well consider the application of fully integrated switching charger ICs in battery backup systems. Battery backup systems used in applications such as solar-powered outdoor cameras, lighting, and small cell systems like 4G/5G access points need multi-cell battery chargers for power. The traditional solution for multi-cell battery chargers is composed of several discrete power ...
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SPARTAN 7 PMIC SOLUTION WITH POWER SEQUENCING FOR HIGH POWER APPLICATIONS (5VIN)This reference design is intended for powering AMD Xilinx Spartan7 family of FPGAs (S6 - S100). This PMIC based solution combines a small footprint with good efficiency and tight regulation for a low cost solution. The internal sequencer ensures power up and power down sequencing requirements MP5416 PMIC with 4x bucks, 5x LDOs Vin 2.8V to 5.5V I2C support QFN-28 (4mmx4mm) Cost effective Small Foot...
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WIFIMPS works closely with Qualcomm to create power solutions for all their WiFi products supporting 802.11ax including WiFi6 standards with 2.4GHz/5GHz/6GHz bands The MPS components on these reference designs are carefully selected to meet price and performance objectives of these designs. Please contact your regional MPS contact or use the displayed link below for assistance
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MPQ3910A REFERENCE DESIGN - HIGH VOLTAGE BOOST FOR APD IN LIDAR APPLICATIONSAutonomous vehicles have been a hot topic for some time, but now they are staring to become a reality. To enable high degrees of autonomy, vehicles are using combined methods (cameras, radar, and LiDAR) to detect surroundings. LiDAR is a ranged device. It functions similarly to radar, but uses light waves instead of RF waves. A laser diode emits light pulses, and an advanced photodiode (APD) sens...
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DESIGNING A POWER TREE FOR AN AUTOMOTIVE SOCAdvanced driver assistance systems (ADAS) and infotainment system-on-chips (SoCs) are offering increasingly higher computing power, which in turn results in higher power demands. An SoC can require more than 10 different power rails, with currents ranging from hundreds of amperes (A) to a few mA. Crafting an optimal power tree for these applications is not a trivial task. This article will discuss...
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AUTOMOTIVE-GRADE IDEAL DIODE CONTROLLER WITH REVERSE POLARITY PROTECTION: MPQ5850The MPQ5850-AEC1 is a 42V off-battery, smart ideal diode controller that can drive an external N-channel MOSFET to replace a Schottky diode for -36V reverse polarity protection. It minimizes power loss and enables a low minimum input voltage, making it ideal for applications such as digital clusters, infotainment, and ADAS. Compared to traditional solutions, the MPQ5850 features a compact solution...
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TRACTION INVERTER SYSTEMAn engine roaring is becoming a sound of the past, as the adoption of electric vehicles (EVs) continues to grow at an exponential rate. Soon the only sound will be the whirring an EV motor as the traction inverter delivers power from the battery. Traction inverters are instrumental in converting energy from the high-voltage battery (400V/800V) into three-phase AC energy to drive the vehicle’s moto...
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ONBOARD CHARGING MODULE (OBCM)Electric vehicles (EVs) are becoming more present every day, with the adoption of EVs growing at an exponential rate. Onboard charging (OBC) is a very important part of EVs, since it determines the maximum possible charge rate while an AC charger is connected to the vehicle. The maximum charge capability for a fully electric vehicle is typically between 6.6kW and 22kW, and for a plug-in hybrid veh...
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DEVELOPING A SMART COCKPIT SOLUTION WITH MPS AND SEMIDRIVEThere are a wide array of features in a smart car’s cockpit that can enhance driving experience. For example, full LCD central control screens and high-definition displays have made user experience smoother and simpler. With the addition of voice recognition, drivers can make calls and use intelligent navigation. High-quality sound and ambient lighting provide an immersive experience while listeni...
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