IP3003 / I3003
Power Factor Correction
APPLICATION INFORMATIONS
1. Main Inductor
L = η * ( VO − VP ) * VP2 / ( 4 * VO * PO * f )
Where,
η: Efficiency ( 0.95)
VO: DC Link Voltage
VP: Input Peak Voltage
PO: Output Power
f: Switching Frequency
2. Resistor for Current Sense
RS = 1.75 / ILP
Where,
ILP: Inductor Peak Current
3. Resistors for Multiplier
RML < 0.69 * RMU / ( VP – 0.69 )
Where,
RMU: Upper Resistor for Multiplier Input
RML: Lower Resistor for Multiplier Input
4. Resistors for Error Amplifier
REL = 2.5 * REU / ( VO − 2.5 )
Where,
REU: Upper Resistor for Error Amplifier Inverting Input
REL: Lower Resistor for Error Amplifier Inverting Input
JAN. 2007 (Rev.3)
- 6 -
http://www.interpionsemi.com
CRANE [ Crane Aerospace & Electronics. ]
