UCC28060DR Integrated Circuits (ICs)

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Power factor correction (PFC) is the process of improving the power quality of an electrical system by controlling reactive power components. The UCC28060DR is a PFC controller designed to increase power factor and reduce power losses in power systems. It is specifically designed to be used in high power applications where the voltage ripple is low and the required current is high.

The UCC28060DR is a synchronous buck topology featuring a high transmitting frequency operation and wide input voltage range. It uses a voltage mode control architecture with its own current-mode control loops to control the input current and output voltage. The device integrates an operational amplifier and a slew rate control circuit in order to provide precision control of the input current and output voltage with minimal voltage droops in steady-state operation. Additionally, the UCC28060DR provides protection circuits for overvoltage, overcurrent, and overtemperature operation.

The power factor correction circuit of the UCC28060DR operates in constant on-time mode where the voltage ripple is minimized by modulating its on-time until the average input current is equal to the average output current. This allows it to offer improved power efficiency when compared to other types of PFC controllers. Additionally, it features low start-up current and low standby power in order to reduce its power consumption.

The UCC28060DR is most commonly used in power supplies for air conditioners and other high power applications. It is also suitable for factories, stores, and other commercial applications, where power supply stability and power factor correction are necessary. The device uses a dual-loop control system to provide both input current and output voltage control and provide high power factor and low output voltage ripple.

The UCC28060DR also provides protection circuits in order to prevent any potential damage to the system. These include overvoltage protection for the input stage, overcurrent protection for the input stage, and thermal protection for the output stage. It also features current limiting to protect the device against short circuits. All these features help in ensuring the stability and reliability of the system.

In summary, the UCC28060DR is a PFC controller designed to improve the power factor of an electrical system. It is designed to be used in higher power applications where minimal voltage droops and high current is required. It features voltage mode control architecture and multiple protection circuits in order to ensure optimal stability and reliability. It is most commonly used in power supplies for air conditioners and commercial applications.

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