PFS7623H

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Power factor correction (PFC) is defined as the process of compensating for or eliminating any conditions which cause a deviation of the power factor of an AC system from its ideal value. PFC has become an important factor in the design of electrical circuits, especially in systems which require the efficient use of electrical energy. The purpose of PFC is to improve power delivery and reduce wasted power in an electrical system. To achieve this, PFC circuits use power conversion techniques to raise the input voltage and draw current more in phase with the voltage, thus increasing the power factor.

The PFS7623H is a power factor correction converter that provides a high power conversion efficiency over a wide input voltage range from 48 to 220V AC. It provides a wide operating temperature range from -40 to +125 °C, making it suitable for use in most environments. The device features an onboard digital signal processor (DSP) for efficient system control, great flexibility in application, and the possibility of adding features on the fly.

The PFS7623H by STMicroelectronics is designed to meet the demand for high energy efficiency and reliable performance in various applications. It features high transient peak-power pulses for powering devices with high power demands, such as motor drives and microprocessors, PFC output voltage programming by an internal on-board processor, low output ripple, and a patented soft-start phase. This makes it ideal for applications such as air conditioners, LED lighting, LED backlight, and induction motors.

The PFS7623H is a current mode PFC converter. Its principle of operation involves a current sense coupled to an error amplifier. This error amplifier controls a power switch, which controls the current through the primary side coil. The current is then rectified and filtered to produce the target output voltage. The error amplifier compensates for changes in the output voltage with a given input voltage to ensure that the output voltage remains the same. The device features a wide switching frequency range from 100kHz to 500kHz and a programmable output voltage range from 4.2V to 400V.

The PFS7623H provides output over-voltage protection, over-temperature protection, and load dump protection. The output over-voltage protection helps prevent the output voltage from exceeding its maximum limit, while the load dump protection protects against sudden input voltage surges. The device also provides total power limiting to prevent power consumption overload. This ensures that the system will shut down safely in case of an unexpected overload.

In summary, the PFS7623H is a high power, high efficiency power factor correction converter designed for use in a variety of applications. It features a wide input voltage range, high switching frequency, high efficiency, over-voltage protection, and load dump protection. The device also features a programmable output voltage, low ripple, and protects the system from power consumption overload. This makes it an ideal choice for applications such as air conditioners, LED lighting, LED backlight, and induction motors.

The specific data is subject to PDF, and the above content is for reference