CCM-BOOST Datasheet, PDF (10/18 Pages) Infineon Technologies AG – CCM PFC Boost Converter Design

CCM PFC Boost Converter Design
Design Note DN 2013-01
V1.0 January 2013
The recommended CoolMOS™ MOSFET series for
boost applications are the CP series and the C6/E6/P6
series. CP CoolMOS™ provides fastest switching
(Figure 4.3), hence, best performance, but requires
careful design in terms of gate driving circuit and PCB
layout [3]. The C6/E6 series provides a distinct cost
advantage, with easier design, but less performance
compared to CP series. The new (in 2013) P6 series
approaches CP performance closely at a better price
point, and is recommended for new designs that are cost
sensitive. [6]
According to the aforementioned MOSFET selection
criteria and to the specification listed in Table 1, the
IPW60R125CP is selected, and its parameters will be
used for the following calculations.
Figure 4.3
The MOSFET RMS current across the 60Hz line cycle can be calculated by the following equation;
consequently the MOSFET conduction loss is obtained.
(6)
(7)
For switching losses calculation, the average input current can be used to estimate losses over the line
cycle. The average input current is given as:
(8)
Turn-on time and loss:
(9)
(10)
10