Today's refrigerators are more energy efficient and quieter and smarter than ever. Texas Instruments has developed products to meet the challenges and requirements of these new precision systems.
Energy efficiency: Household appliances (aka white goods) motors are typically oversized to handle load torque changes and transients. Scalar techniques for control often result in system inefficiencies and operational noise. This in turn leads to a normal energy utilization rate between 40% and 50%. By deploying TI's digital signal controllers for control systems, designers can achieve smaller, quieter motors with energy efficiencies as high as 85% - 90%. Energy efficiency requires receiving approval marks from the government agencies (such as the US State Environmental Protection Administration) and the Energy Department's ENERGY STAR rating.
IEC 60730 specification: Appliance manufacturers continue to introduce new enhancements to automated electronic controls that ensure safe, reliable and efficient operation of equipment. Among them, the IEC 60730 specification addresses the abnormal operation of mechanical, electrical, electronic, EMC, and AC equipment. For microcontrollers, the specification details new test and diagnostic methods for real-time embedded software, ensuring secure operation of embedded control hardware and software. All TI TMSxx24xxxx and TMSxx28xxxx digital signal controllers support the IEC 60730 specification.
High Voltage Isolation: TI's larger, higher performance products, where reliability and motor control accuracy are key considerations, provide isolation that blocks high voltages, isolates ground, and prevents noise currents from entering local ground and interfering with or damaging sensitive circuitry. product.
Integration: Texas Instruments offers fully integrated solutions such as digital signal controllers (for digital motor control, power factor correction and other system functions) and relay drivers, which are 5V that can reside on the board The logic provides up to 8 channels, zero voltage detection and 5V linear regulation.
The development trend of refrigerators:
Home Network: The home mesh network consists of home appliances, audio/visual equipment, HVAC systems, lighting fixtures, etc. Wireless connectivity and control via remote control, although sounds remote, can be made possible with TI's ZigBeeTM products. TI offers customers industry-leading ZigBeeTM-compliant solutions and a wide range of patented RF-IC products that drive innovation in low-power RF applications. With the current TI ZigBeeTM devices, appliance manufacturers can create future products that communicate with each other by creating smart home networks, such as when the cleaning job is complete and there will be messages on your TV or refrigerator or remotely controlled LCD. On the display. With TI's low-power wireless solution, family members will benefit from universal remote control:
No need to look at the line
The scope is expanded so that anyone can remotely control any ZigBee device from anywhere in the home
Allow two-way communication
Automated Stock: Manufacturers are already thinking about offering RFID-equipped refrigerators that let customers know the latest stocks of their frozen foods and display that information on the video display on the refrigerator door. Once RFID tags on personal home products are commonplace in the market, RFID-equipped refrigerators will also automatically recognize the entry and exit of items. This idea will also become a reality once large chain food retailers use RFID as the primary mechanism for cashiers to collect.
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