RDS12GHVAC is a reference design based on the 16-bit S12G ultra-reliable microcontroller. RDS12GHVAC consists of a central control board with a human-machine interface (HMI), a motor control board, a damper and a blower motor. It is used to realize the temperature, light, and humidity of automotive HVAC. and air quality sensing interface and configurable automatic climate control software algorithms to effectively control vehicle climate.
This valve controller system uses SB0800 octal valve controller IC with MCU and two power MOSFETs. The system can drive proportional and digital valves as well as system pumps. Monitoring and protection features protect the system from hazardous events such as short circuits, overcurrent or overvoltage, and other abnormal conditions.
Despite the growing demand for larger battery cells, battery prices remain quite high, constituting the most expensive component in an EV or PHEV, with a typical price tag of around $10,000 for a battery that supports a range of a few hundred kilometers. The high cost can be mitigated by using lower-cost/refurbished battery cells, but such cells will also have greater capacity mismatches, which will reduce the available runtime or driving distance on a single charge. Even higher-cost, higher-quality battery cells will age and mismatch after repeated use. There are two ways to increase the capacity of a battery pack with mismatched cells: one is to use larger batteries from the beginning, which is not cost-effective; the other is to use active balancing, a new technology that can restore battery capacity in the battery pack and quickly increase power. Full series battery cells need balancing When each battery cell in the battery pack has the same state of charge (SoC), we say that the battery pack is balanced. SoC refers to the current remaining capacity of an individual battery relative to its maximum capacity as the battery is charged and discharged. For example, a 10Ah battery will automatically equalize the state of charge between parallel-connected battery cells over time as long as there is a conductive path between the battery cell terminals. It can also be argued that the state of charge of series-connected cells will vary over time for a variety of reasons. Temperature gradients across the pack, impedance, self-discharge rates, or differences in load between individual cells can cause gradual changes in SoC. While pack charge and discharge currents help to minimize these cell-to-cell differences, the cumulative mismatch will only increase unless the cells are periodically balanced. Compensating for gradual changes in cell SoC is the most fundamental reason to balance series-connected cells. Typically, passive or dissipative balancing schemes are sufficient to rebalance the SoC of cells with similar capacities in the pack.
Typical Application of NCV890203 2.0 A, 2 MHz Automotive Step-Down Switching Regulator with RSTB. The NCV890203 is a fixed frequency, monolithic, step-down switching regulator designed for automotive battery-connected applications that must operate from an input supply up to 36 V.
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