A PFC (Power Factor Correction) controller is a type of integrated circuit (IC) or chip that is used in power supply units (PSUs) to regulate and control the power factor of the input current. Power factor is a measure of how effectively electrical power is being utilized.
In power systems, a low power factor can lead to inefficient energy usage, increased power losses, and additional stress on the electrical grid. Power factor correction aims to improve the power factor by reducing the reactive power component of the current, thus bringing it closer to the ideal power factor of 1.
Part Number: OB6561P ( OB6561, OB6563 )
Function: High Performance PFC Controller
Package: DIP, SOP 8 Pin type
Manufacturer: GreenEngine
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Description
OB6561P, OB6563 is a high performance transition mode(TM) Power Factor Correction(PFC) control IC. Designed with OnBright patented proprietary technology, OB6561P / OB6563 optimizes tradition transition mode control easily achieving
system power factor to close to 1 with very low THD.
Features
1. Transition mode operation with built-in analog multiplier
2. THD optimization
3. System open loop protection
4. Proprietary audio noise elimination
5. Dynamic and static output over voltage protection(OVP)
6. Cycle-by-Cycle current limiting
7. Burst mode control for improved efficiency at light load
8. External ENA/disable control
9. Under voltage lockout with hysteresis (UVLO)
10. Built in current sense filter, no external RC filter is needed [ … ]