Understand the basics of power factor control using the UC3854. No hassle with enable and startup circuits, just plain control to get your amplifiers and current sensors tuned!
Example:Download example UC3854-Basic
The UC3854 and UC3854B are the improved versions of the UC 3854. The main difference is the Vsense is now 3 volt and the offset current for IAC is not required any more.
Example:Download example UC3854AB-Basic
The DIP package model includes the oscillator and other connections for validating the supply voltage, Soft Start and enable pin. Both the UC3854A and uc3854B models are available. The functionality is equal to the UC3854X-control models, only the extra pins are available.
Example:Download example UC3854AB-DIP
The following design is for a 400V/540Watt output.